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Aluminum Electrolytic Capacitors
NIC PRODUCT TRAINING
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• Common usage applications
Topics: Leaded and Surface Mount (SMT) Product • Characteristics • Construction • Types & Appearance • Dimensions • NIC Part Numbering System Market • Status • Competitors • Cross-Referencing Applications/End products • Common usage applications • Benefits & Trade-Off • Competing Technologies PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Capacitor Family Tree CAPACITORS ELECTROSTATIC ELECTROLYTIC ALUMINUM
CERAMIC FILM ALUMINUM TANTALUM LEADED SMT RADIAL AXIAL SNAP-IN CYLINDRICAL CAN HORIZONTAL MOUNT FLAT CHIP PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Characteristics
Aluminum Electrolytic Capacitors belong to the family of ELECTROLYTIC capacitors. They have the following characteristics: They are Polarized with anode (+) and cathode (-) terminals They dominate the upper range of capacitance values They are very widely used as they offer lowest cost per capacitance value They are available in both leaded and surface mount styles The are fixed capacitance value (their value is not user variable) PRODUCT TRAINING: Ceramic Capacitors
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Capacitance (Cap) Value Characteristic
100uF Capacitance Value in… F = micro-Farad = 1 x 10-6 F = F NIC offers aluminum electrolytic capacitance values ranging from… 0.1uF ~ 68,000uF F ~ F Most call outs are from 1uF ~ 1000uF PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Capacitance Tolerance Characteristic
100uF ± 20% (M) Capacitance Value Tolerance: Capacitance value will have tolerance value (+25°C): ± 20%(M) standard ±10%(K), -10%/+50% (T) and -0%/+100%(P) are all specials PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Voltage Characteristic
100uF ± 20%(M) 50VDC Voltage Rating (VDC): NIC offers voltage ratings from… 2.0VDC ~ 450VDC Most call outs are from 10VDC ~ 100VDC PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Leakage Current Characteristic
100uF ±20%(M) 50VDC IR IR = 1 Meg LC LC = 50uA Leakage Current (uA) 1uA = A Insulation Resistance (Meg-Ohm) 1Meg-Ohm = 1,000,000 ohm PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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ESR - Ripple Current Characteristics
100uF ±20%(M) ESR = 1.66 50VDC ESR AC Current IR = 1 Meg IR Ripple Current LC = 50uA Ripple Current Rating = 230mA LC ESR = Equivalent Series Resistance (Ohm ; ) Ripple Current Rating (mA) 1mA = 0.001A PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Component Characteristics
100uF ±20%(M) 50VDC ESR = 1.66Ohm Ripple Current Rating = 230mA IR = 1 Meg-Ohm LC = 50uA NIC P/N: NRSA101M50V8X11.5 PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Catalog Characteristics
NRSA Series Characteristics (catalog data sheet) Voltage Range Capacitance Range Temperature Range Tolerance Leakage Current LC Spec = 0.01 X (100uF X 50VDC) LC = 50uA Load Life Test (dependent upon part diameter) a useful gauge for estimating (or comparing) operation lifetime of the component PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Catalog Characteristics
NRSA Series Characteristics (catalog page 12) ±20% TEMPERATURE mm ~ 8mm diameters 10mm diameter OF OPERATION DURATION OF OPERATION DURATION OF OPERATION +35C ,000 HOURS (7.3 years) ,000 HOURS (14.6 years) +45C ,000 HOURS (3.6 years) ,000 HOURS (7.3 years) +55C ,000 HOURS (1.8 years) ,000 HOURS (3.6 years) +65C HOURS ,000 HOURS (1.8 years) +75C HOURS HOURS +85C HOURS HOURS PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Catalog Characteristics
NRSA Series Characteristics (catalog page 12) ESR Table MAXIMUM E.S.R. () AT 20°c AND 120Hz Voltage Ratings Capacitance Value Industry Standard Test Frequency 120Hz = Full Rectified 60Hz ESR for 100uF PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Catalog Characteristics
NRSA Series Characteristics (catalog page 12) Ripple Current Rating Table PERMISSIBLE RIPPLE CURRENT (mA rms) AT 85°C AND 120Hz Capacitance Value Voltage Ratings Industry Standard Test Frequency 120Hz = Full Rectified 60Hz Test Temperature Is Rated Temperature (+85°C) Ripple Current Rating for 100uF PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Impedance Characteristic
ESR IR Z () Z = Impedance (Ohm) Impedance is the total AC resistance (ohm) the capacitor presents to the circuit. The impedance includes the capacitive and inductive reactance (Xc and XL) and the ESR. The impedance value will be dependent upon the capacitance value, the frequency and the capacitor construction. PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Impedance & ESR Characteristics
ESR & Impedance (Ohm) ESR Frequency PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Construction Start with high purity aluminum foil
Both anode (+) and cathode (-) foils are chemically etched to increase the surface area (more surface area = more capacitance) An aluminum oxide dielectric is electrochemically formed on the anode (+) foil surface Oxide thickness determines rated voltage PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Cathode (-) Foil Anode(+) Foil
Construction Separator paper prevents shorting and act as medium to hold electrolyte Separator paper Cathode (-) Foil Separator paper Anode(+) Foil PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Capacitor Element is Wound Up
Construction Capacitor Element is Wound Up Separator Paper Anode (+) Leads Cathode (-) PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Construction End Seal “Bung” Liquid Electrolyte Can Capacitor Element
Mechanical seal Can Capacitor Element PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Electrolyte Construction Oxide Dielectric Anode (+) Cathode(-)
Liquid electrolyte becomes extension of cathode. Oxide Dielectric Electrolyte Anode (+) Cathode(-) Separator Paper PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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NIC NIC NIC Conditioning
Reforming -Aging All parts ( 100% ) are conditioned for 30 ~ 60 minutes at rated temperature and voltage Repairs imperfections caused during assembly Stabilizes characteristics Screens out defective units NIC NIC NIC PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Types +85°C - Industry standard general-purpose components (-40° ~+85°C temperature range). +105°C - Industry standard wide temperature components (-55° ~+105°C temperature range). +125°C - Special extended temperature range (-55° ~+125°C) Low Impedance / Low ESR - special type offers low impedance - ESR at high frequency (50KHz ~500KHz) Low Leakage - special type offers reduced leakage current characteristic. Low cost replacements for tantalum capacitors. 20+Series The higher the temperature rating the longer the life expectancy 20+Series 2 Series: NACT and NRWX 6 Series: NACZ, NRSZ, NRSX, NRSY, NRE-SX and NSRZ 5 Series: NACL, NLE, NLE-L, NLE-LW and NLE-S PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Special Types Specialty Polymer - Solid Aluminum - new technology products use polymers (plastic) as a replacement for the liquid electrolyte. Benefits include no dry-out (infinite life), very low impedance /ESR and high ripple current rating. Trade off is high cost. Bi-Polar - special ”Bi-polar" or ”Non-polarized" component can be produced by using a second anode foil in place of the cathode. This results in a non-polarized part that can be reverse biased. Trade off is: only half the capacitance value, higher loss (increased dissipation factor), lower ripple current rating and higher cost as compared to a standard uni-polarized part. 1 Series: NSP 5 Series: NACEN, NNR, NNA, NRESN and NSRN PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Radial Leaded Features
Appearance Radial Leaded Features Cathode lead (-) shorter than anode (+) Cathode polarity band Date code (YYWW) “9614” = 14th week of 1996 Temperature rating Capacitance value (µF) Voltage rating (VDC) NIC logo NIC NLE, NNR, NRE, NRSA, NRSx, NRWx, and NSR Series (25+ Series) PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Axial Leaded Features Appearance Cathode (-) polarity band
Capacitance value (µF) Voltage rating (VDC) NIC logo NIC NAE, NASA, NASS, NAE-WT and NNA Series PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Snap-In Features Appearance Cathode (-) polarity band
Temperature rating Capacitance value (µF) Voltage rating (VDC) NIC name “CE” stands for Capacitor Electrolytic NIC NRLM, NRLF, NRLMW and NRLFW Series PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Surface Mount Cylindrical Features
Appearance Surface Mount Cylindrical Features Cathode (-) polarity band Anode (+) polarity notch Date code “YM” “36”=6th month of 1993 Capacitance value (µF) Voltage rating (VDC) NIC NACxx Series (15+ Series) PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Surface Mount Flat Chip Features
Appearance Surface Mount Flat Chip Features (+) Anode (+) polarity band Capacitance value (µF) Voltage Code ( j = 6.3VDC) Date Code (7N41 = Nov. 1997) NIC NSP Series PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Surface Mount Flat Chip Features
Appearance Surface Mount Flat Chip Features (+) Anode (+) and Cathode (-) identifiers Cathode (-) notch in body Capacitance value (µF) Voltage rating (VDC) NIC NACM Series PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Dimensions Component size is describe diameter by length (Dø x L) dimensions in millimeters (mm). Dø Lead spacing of radial leaded styles is variable (forming and crimping). Tape and reel and ammo pack packaging styles also allow different lead space options. It is important to review correct/preferred lead spacing with the customer at the time of quote/order. L “TRST” Straight Leads on Tape Lead Spacing PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Dimensions Dø Lead Spacing L
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Dimensions Dø Lead Spacing L
PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Dimensions Dø L PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Dimensions DØ L PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Dimensions PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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NRSA 101 M 16V 6.3X11 TR Part Numbering System
NIC NLE, NNR, NRE, NRS, NRSx, NRWx, and NSR Series (25 Series) NRSA 101 M 16V 6.3X11 TR Tape & Reel Codes TR = 5.0mm (0.197”) LS TRF1 = 2.5mm (0.098”) LS TRST = Straight Lead LS TRN = 5.0mm Negative Lead First Tape and Reel Size: Dø X L (mm) : Diameter by Length Working Voltage Rating (VDC) Capacitance Value Tolerance: M = ±20% Capacitance Value in uF: (3 digit code) First 2 digits are significant. Third digit is number of zeros. 100 = 10uF, 101 = 100uF, 332 = 3300uF. Values less than 10uF R = decimal 1R0 = 1.0uF, 4R7 = 4.7uF Series PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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NASA 472 M 16V 16X31 Part Numbering System
NIC NAE, NASA, NASS, NAE-WT and NNA Series Tape & Reel Dø = 3.5mm ~ 8mm are available on tape and reel Tape and Reel Code = TR Size: Dø X L (mm) : Diameter by Length Working Voltage Rating (VDC) Capacitance Value Tolerance: M = ±20% Capacitance Value in uF: (3 digit code) First 2 digits are significant. Third digit is number of zeros. 100 = 10uF, 101 = 100uF, 332 = 3300uF. Values less than 10uF R = decimal 1R0 = 1.0uF, 4R7 = 4.7uF Series PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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NRLM 103 M 35V 25X40 Part Numbering System
NIC NRLM, NRLF, NRLMW and NRLFW Series These large can styles are only available in bulk for hand insertion Size: Dø X L (mm) : Diameter by Length Working Voltage Rating (VDC) Capacitance Value Tolerance: M = ±20% Capacitance Value in uF: (3 digit code) First 2 digits are significant. Third digit is number of zeros. 100 = 10uF, 101 = 100uF, 332 = 3300uF. Values less than 10uF R = decimal 1R0 = 1.0uF, 4R7 = 4.7uF Series PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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NACE 221 M 16V 6.3X8 TR13 Part Numbering System
Tape & Reel Qty 3 & 4 mm Dø = 1500 pcs. 5mm Dø & 6.3x5.5 = 1000 6.3x6.3 = 800 pcs. 6.3X8 = 500 pcs. 8 & 10 mm Dø = 300 pcs. 12mm Dø= 200 pcs. NACE 221 M 16V 6.3X8 TR13 NIC NACxx Series (14 Series) Tape and Reel 330mm (13”) Reel Size: Dø X L (mm) : Diameter by Length Working Voltage Rating (VDC) Capacitance Value Tolerance: M = ±20% Capacitance Value in uF: (3 digit code) First 2 digits are significant. Third digit is number of zeros. 100 = 10uF, 101 = 100uF, 332 = 3300uF. Values less than 10uF R = decimal 1R0 = 1.0uF, 4R7 = 4.7uF Series PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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NIC NSP Series NSP 470 M 6.3V D TR Part Numbering System
Tape and Reel: pieces per 330mm (13”) Reel, mm tape with 8mm pitch Size Code: D = 7.3mm x 4.3mm (L x W) Working Voltage Rating (VDC) Capacitance Value Tolerance: M = ±20% Capacitance Value in uF: (3 digit code) First 2 digits are significant. Third digit is number of zeros. 100 = 10uF, 101 = 100uF, 332 = 3300uF. Values less than 10uF R = decimal 1R0 = 1.0uF, 4R7 = 4.7uF Series PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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NIC NACM Series NACM 100 M 25V 3.8X6.5 TR Part Numbering System
Tape & Reel Qty 3.8x6.5 = 3000 pcs. 4.8x7.3 = 2000 pcs. Tape and Reel 380mm (15”) Reel Size: W X L (mm) : Width by Length Working Voltage Rating (VDC) Capacitance Value Tolerance: M = ±20% Capacitance Value in uF: (3 digit code) First 2 digits are significant. Third digit is number of zeros. 100 = 10uF, 101 = 100uF Values less than 10uF R = decimal R47 = 0.47uF, 1R0 = 1.0uF, 4R7 = 4.7uF Series PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Worldwide Unit Shipment Forecast
Aluminum Electrolytic Capacitor Market Source: Paumanok CARTS 1999 Worldwide Unit Shipment Forecast PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Average Worldwide Unit Price (ASP)
Aluminum Electrolytic Capacitor Market Source: Paumanok CARTS 1999 Average Worldwide Unit Price (ASP) PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Worldwide Demand By Market Segment
Aluminum Electrolytic Capacitor Market Source: Paumanok CARTS 1999 Worldwide Demand By Market Segment Standard types include +85C, +105C Standard & Low ESR Specialty types includes solid aluminum electrolytic, Flash/Strobe and large can PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitor Market
Most popular part style (with the most aggressive pricing) continues to be miniature +85°C rated general-purpose style radial leaded style parts. ( NIC NRSA, NRSS series ) Axial* and snap-in leaded styles both continue to grow at modest rates. * - Recently UCC and Panasonic discontinued axial leaded style parts. We have been successful in converting axial leaded style customers over to NIC. PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitor Market
Largest growth has been for surface mount cylindrical can style parts. Lower pricing, higher available capacitance values - voltage ratings and better safety factor, than tantalum style parts, have fueled growth PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Cross Referencing Surface Mount (see WEBSITE)
PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Cross Referencing (see WEBSITE) Radial Leaded MOST POPULAR STYLE
Industry Standard
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Cross Referencing (see WEBSITE)
Axial Leaded Cross Referencing (see WEBSITE) Axial Leaded Parts Discontinued in1998 by Panasonic and UCC PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Applications Aluminum electrolytic capacitors are used in virtually every segment of the electronics industry. Any product that "plugs into the wall" (receives it's power from the utility company) uses aluminum electrolytic capacitors in the power supply circuitry which converts AC voltage from the utility company into clean continuous DC voltage to power the circuitry. Aluminum electrolytic capacitors are also widely used to provide temporary voltage hold-up (they act as short-term energy sources) during transition periods (high load, line droops, transient events) within most electrical circuits. POWER SUPPLY PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Applications Typical markets/end-products using aluminum electrolytic capacitors include: Power supplies (linear and switch mode), Point of Load (POL) Voltage regulators and Converters (DC-DC, AC-DC), Line voltage conditioning (UPS systems, PF correction) and inverters (DC-AC). Computers and Peripherals (mother boards, monitors, disc / hard drives, modems, soundcards, graphic/video cards, printers, scanners…etc.) Telecommunications / Networking equipment (phones, switchers, adapters, routers, hubs, LANs, Ethernet hardware, wireless communication… etc.) Audio/Video equipment (CATV, recorders/cameras, signal processors, amplifiers, projectors… etc.) Appliances (power and control systems) Security and Alarm (sensors, cameras, display and control) Automotive (electronic control and display systems) Medical (electro-surgery, dialogistic, monitoring) Industrial Controls / Data Acquisition Office and business equipment (point of sale, scanners, copiers, printers, fax machines…etc.) PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Applications Positive (anode) polarity indicator indicating electrolytic capacitor Circuit Schematics Cathode (-) polarity indicator indicating electrolytic capacitor Energy storage / power source smoothing (voltage hold-up). Power source noise filtering applications (shunts noise to ground). AC signal bypass/filtering applications (shunts noise to ground). Arc suppression (reduces high energy transients) Also used in combination with a resistor or inductor for circuit timing, filtering or tuning Circuit A Circuit B Circuit coupling (passes AC and blocks DC) Also used in combination with a resistor or inductor for circuit timing, filtering or tuning PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Applications Aluminum Electrolytic Capacitors Component Type: Surface mount and Leaded Product : Power supplies Application: Input-Output circuit energy storage and noise filtering (1) 35VDC SMT version: NACZF102M35V18X17TR Leaded version: NRSA102M35V12.5X25 or Leaded version: NRSA102M50V16X25 PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Increasing output capacitance value lowers ESR and ripple voltage!
Applications Aluminum Electrolytic Capacitors Component Type: Surface mount and Leaded Product : Power supplies Application: Output circuit energy storage and noise filtering Increasing output capacitance value lowers ESR and ripple voltage! Output Ripple Voltage PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Catalog Characteristics
NRSA Series Characteristics (catalog page 12) ESR Table MAXIMUM E.S.R. () AT 20°c AND 120Hz Capacitance Value Voltage Ratings Industry Standard Test Frequency 120Hz = Full Rectified 60Hz Cap ESR 10, PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Applications Aluminum Electrolytic Capacitors Component Type: Surface Mount Product : CCD cameras (video systems , security systems) Application: On-board energy storage, DC supply line hold-up and noise filtering typically low voltage ( +5VDC) operation 4 ~ 6 SMT Aluminum typically per board PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Applications Aluminum Electrolytic Capacitors Component Type: Surface Mount or Leaded Product : Video accelerator and sound cards Application: On-board energy storage, DC supply line hold-up and noise filtering typically low voltage ( +5VDC) operation (19) SMT Aluminum (2) Radial leaded Aluminum PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Applications Aluminum Electrolytic Capacitors Component Type: Surface Mount or Leaded Product : (DFP) digital flat-panel display card Application: On-board energy storage, DC supply line hold-up and noise filtering typically low voltage ( +5VDC) operation (15) SMT Aluminum PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Applications Aluminum Electrolytic Capacitors Component Type: Surface Mount Product : Digital Television (DTV) Application: On-board energy storage, DC supply line hold-up and noise filtering typically low voltage ( +5VDC) operation (15) SMT Aluminum PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Applications Aluminum Electrolytic Capacitors Component Type: Surface mount and Leaded End Product : Telecommunication Network Interface Cards (NIC) Application: On-board energy storage, DC supply line hold-up and noise filtering typically low voltage ( +5VDC) operation (2) Radial leaded Aluminum (1) SMT Aluminum (3) SMT Aluminum PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Applications Aluminum Electrolytic Capacitors Component Type: Surface Mount or Leaded Product : Modems (Telephone Interface) 10uF (1) 50VDC Non-Polarized Aluminum Electrolytic Capacitor SMT version NACEN330M50V10X10.8 is available 33 50V Speaker Circuit PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Applications Aluminum Electrolytic Capacitors Component Type: Surface Mount or Leaded End Product : VME bus motherboard (“VME” is widely accepted back-plane interconnection bus system developed by a consortium of companies led by Motorola, now standardized as IEEE ) Application: On-board energy storage, DC supply line hold-up and noise filtering typically low voltage ( +5VDC) operation (9) SMT Aluminum PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Applications Aluminum Electrolytic Capacitors Component Type: Surface mount and Leaded Product : DC-DC Converters Application: Input and Output circuit energy storage and noise filtering DC-DC Converters: Commonly used in… Portable instruments Battery operated digital products Industrial power distribution Telecom power supplies Notebook and palmtop computers GPS systems Cellular Telecomm Infrastructure (8) Radial Leaded Aluminum (3) SMT Aluminum PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Applications (41) SMT Aluminum
Component Type: Surface Mount Aluminum Product : High Performance Video Gaming (Sony Play-Station) (41) SMT Aluminum PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Applications Aluminum Electrolytic Capacitors Component Type: Surface mount and Leaded End Product : Computer motherboard Application: On-board energy storage, DC supply line hold-up and noise filtering typically low voltage ( +5VDC) operation (38) Radial leaded Aluminum Large number used in output capacitor bank to minimize ESR (and reduce ripple voltage). PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Benefits Aluminum Electrolytic Capacitors Characteristics of aluminum electrolytic capacitors that sway customers: Lowest cost… this is winning feature Higher CV... than offered by other competing technologies Safety… Aluminum electrolytic capacitors handle unforeseen transients without complaint, far better than competing technologies. “Soft” open circuit failure mode is preferred to short circuit failure mode of competing technologies. Mature product with proven technology… It works PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Aluminum Electrolytic Capacitors
Trade-offs Aluminum Electrolytic Capacitors Characteristics of aluminum electrolytic capacitors that most customers accept or work around: Life expectancy... is limited as liquid electrolyte dries out over time and temperature. Fortunately, this typically occurs long after the end product or assembly has reached it’s useful lifetime. Reflow soldering only… surface mount style aluminum electrolytic capacitors can not be used in wave-flow soldering. Fortunately most SMT assemblies produced today are soldered using reflow soldering. Component height... aluminum electrolytic capacitors tend to stand higher, as compared to competing technologies. For ultra-small applications these style capacitors are sometimes too physically large (i.e.... pocket phones, pagers, etc.) PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Competing Technologies
Competing - Alternate technologies Tantalum Electrolytic: + Solid electrolyte (long life) + Lower profile (height) for height restrictive uses + Long term reliability is better + Low ESR - high ripple styles available – More expensive than aluminum – Limited to low voltages… 50VDC, 35VDC, 25VDC, etc) – Shorting failure mode… Smoke - flames - fire hazard... limited tolerance to transient events. PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Competing Technologies
Competing - Alternate technologies Ceramics: + Low ESR - High Ripple Rating + Long term reliability is better – More expensive for >1uF – Very unstable at >1uF(capacitance value decreases dramatically with applied voltage and temperature) – Limited to low voltage <25VDC for >1uF – Shorting failure mode PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Customers may inquiry into the following:
Technical Info Customers may inquiry into the following: Leaded Component Taping Specifications: Leaded components are supplied either bulk (bags) or tape and reel/tape and box (ammo pack). Taping is in accordance with EIA-468-B (Radial) or EIA-296-E (Axial) guidelines. You can find the taping specifications in our catalog (pages 10 &11) or at web site page: Standard Lead Spacing “TR” = 5mm (0.20”) Special Lead Spacing”TRF1” = 2.5mm (0.10” Special Lead Spacing”TRST” = straight lead (no forming) PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Customers may inquiry into the following:
Technical Info Customers may inquiry into the following: SMT Component Taping Specifications: SMT components are supplied on tape and reel. Taping is in accordance with EIA-481-1A guidelines. You can find the taping specifications on the catalog data sheets for each product series or at web site: PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Customers may inquiry into the following:
Technical Info Customers may inquiry into the following: Soldering Land Patterns or Pads (SMT styles): If the customer is looking for these, they are seeking the recommended land pattern dimensions. These can be found on the catalog data sheets for each product series or from web site: . PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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Customers may inquiry into the following:
Technical Info Customers may inquiry into the following: Soldering Profile (SMT styles): The recommended soldering conditions SMT parts can withstand. These can be found on the catalog data sheets for each product series or from web site: . PRODUCT TRAINING: Aluminum Electrolytic Capacitors
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