1. WIMA Capacitors for Automotive Applications

2. WIMA Facts Foundation: 1948 by Wilhelm Westermann
Fields of Activities: Manufacture and sale of:
- SMD film capacitors
- through hole plastic film capacitors
- metallized paper capacitors
- DC-Link power capacitors
Ownership: % privately owned
Wilhelm Westermann:
Wolfgang Westermann: today
Production Capacity: appr. 2.5 million pieces/day
Sites: Administration and production in Germany only
Distribution: Worldwide

3. WIMA Locations and Production Facilities
R & D
Aurich
n Berlin
Unna
Mannheim
Sales Department

4. WIMA Product Range
SMD Plastic Film Capacitors µF µF VDC VDC
RFI Capacitors Class X1, X2, Y pF – 10 µF VAC VAC
PCM 2.5 mm Capacitors pF - 1 µF VDC VDC
Snubber Capacitors µF - 25 µF VDC VDC
PCM 5 mm Capacitors pF - 10 µF VDC VDC
GTO Capacitors µF µF VDC VDC
Capacitors for stringent requirements pF µF VDC VDC
DC-LINK Capacitors µF µF VDC VDC
Capacitors for high current ratings pF - 47 µF VDC VDC
DC-LINK Capacitors µF µF VDC VDC

5. Trends of the Automotive Marketc
Excellent reliability and performance
Highest possible safety and comfort
Minimized electromagnetic emission
Reduced fuel consumption
Minimized exhaust emission
Above mentioned trends result into following requirements:
EMC protection: perfect function in the electromagnetic environment without affecting other components
WIMA is offering film capacitors for interference suppression to minimize electromagnetic emissions
Thermal stability: maximal possible operating and storage temperatures
WIMA capacitors are boxed in thermostable plastic cases and sealed with epoxy resin
Vibration resistance: operation under severe vibration regimes
WIMA is offering capacitors with 4-pins or screwable plate connection for extremely reliable contacts

6. Automotive Fields of Application 6 Safety Comfort Powertrain Features
WIMA Products
Airbag control unit
Braking system control unit (ABS/ESC)
Tire pressure monitoring unit
HID lamps
Small motor drives (e.g. seats, mirrors, windows etc.)
Electrical power steering
Remote keyless entry
DC/DC converter and inverter
Electric drives
Charging systems for E-vehicules
Fuel pump, diesel filter control unit
SMD µF- 6.8 µF VDC
SMD-PPS
SMD-PET, SMD-PEN, SMD-PPS
SMD-PET, SMD-PEN
Operating temp. up to 140°C
Operating life > h
Suitable for lead-free
soldering with T < 250°C
Film 1000pF- 220µF VDC PCM
MKS, FKS
MKP
MKS
MKS, MKP, FKS
Operating temp. up to 100°C
Smallest PCM 2.5 mm
Pulse Duty 100 pF- 47 µF
VDC
PCM
MKP 10, FKP 4, FKP 1, MKP
Highest du/dt
Snubber Caps
0.01 µF - 25 µF
VDC
Snubber MKP/FKP
Various contact configura- tions
DC-LINK 2 µF µF
VDC
DC-LINK
Operating life > h
2-pin, 4-pin, screwable plates
or screw connections 6

7. Automotive Safety Applications 7 Examples Requirements WIMA ranges
Advantages
Airbag control unit
High reliability
Small case size
High thermal stability
Long life expectancy
SMD-PPS
0.01 µF µF 63 VDC VDC Size codes
Self-healing construction
Flame-retardant plastic case
Operating temperature up to 140°C
Operating life > h
Suitable for lead-free soldering with T < 250°C
Braking system control unit (ABS/ESC)
0.01 µF- 2.2 µF 63 VDC VDC Size codes
MKS 02, MKS 2, MKS 4 FKS 2, FKS 3
1000 pF µF 50 VDC VDC
PCM mm
Self-healing (MKS), pulse duty construction (FKS)
Flame-retardant plastic case with epoxy resin seal
Excellent capacitance/volume ratio
Tire pressure monitoring unit
SMD-PET, SMD-PEN, SMD-PPS
0.01 µF µF 63 VDC VDC Size codes
Suitable for lead-free soldering up to T < 250°C
HID lamps
High pulse strength
High frequency resistance
MKP 2, MKP 4, MKP 10, FKP 4, FKP 1
100 pF - 47 µF 100 VDC VDC PCM mm
Self-healing, pulse duty construction
Operating temperature up to 100°C
Highest du/dt
Very low dissipation factor
Negative capacitance change versus temperature 7

8. Automotive Comfort Applications 8 Examples Requirements WIMA ranges
Advantages
Small motor drives for e.g. seat adjustment, mirrors, power windows, windscreen wipes, cooling fans, air conditioning etc.
High reliability
Small case size
High thermal stability
Long life expectancy
SMD-PET, SMD-PEN
0.01 µF µF 63 VDC VDC Size codes
Self-healing construction
Solvent-resistant, flame-retardant plastic case
Operating temperature up to 125°C
High resistance to thermal and mechanical shock
MKP 2, MKP 4, MKS 02, MKS 2 MKS 4
1000 pF µF 50 VDC VDC
PCM mm
Self-healing, for high frequency applications
Very low dissipation factor
Very low dielectric absorption
Excellent capacitance/volume ratio
Electrical power steering
MKS 02, MKS 2, MKS 4, MKP 2, MKP 4, FKS 2, FKS 3
Self-healing construction (MKS, MKP)
Pulse duty construction (FKS)
Flame-retardant plastic case with epoxy resin seal
Remote keyless entry
High pulse strength
High frequency resistance
MKP 2, MKP 4, MKP 10
1000 pF µF 63 VDC VDC
PCM mm
Negative capacitance change versus temperature 8

9. Automotive Powertrain 9 Examples Requirements WIMA ranges Advantages
DC/DC converter and inverter
Electric drives
Charging systems for E-vehicules
High reliability
Stable capacitance
High (surge) current carrying capacity
High pulse rise time
High insulation resistance
Low self-inductivity
Absence of partial discharge
No maintenance
Long life expectancy
MKP 10, FKP 4, FKP 1
MKP 4, MKP 2,
100 pF - 47 µF 100 VDC VDC PCM mm
Self-healing, pulse duty construction
Operating temperature up to 100°C
Operating life > h
Highest du/dt
Very low dissipation factor
Negative capacitance change versus temperature
Snubber MKP /FKP
0.01 µF - 25 µF 250 VDC VDC
Various contact configurations
High pulse and current rating
High volume/capacitance ratio
High withstanding voltage, outstanding reliability
Particularly reliable contact configuration: 4-pin versions or screwable plate connections
DC-LINK
2 µF – 8250 µF
450 – 1500 VDC
In rectangular or cylindrical case
Various contact configuration
Particularly reliable contact configurations
High ripple current capability
Very constant ΔC/C
Dry construction without electrolyte or oil
Non polar construction
Fuel pump, diesel filter control unit
Low self-inductance
High thermal stability
SMD-PET, SMD-PEN
0.01 µF µF 63 VDC VDC Size codes
Self-healing construction
Solvent-resistant, flame-retardant plastic case
Operating temperature up to 125°C
High resistance to thermal and mechanical shock
MKS 02, MKS 2, MKS 4
1000 pF µF 50 VDC VDC
PCM mm
Flame-retardant plastic case with epoxy resin seal
Excellent capacitance/volume ratio
Smallest PCM: 2.5 mm (MKS 02) 9

10. Automotive Windshield wiper Electric windows Power steering
Electric mirror
Airbag control
Fuel pump
Keyless entry
Electric seat
DC/DC converter, inverter
Tire pressure monitoring
ABS/ESC
HID lighting

11. WIMA References (Examples)
Automotive and Automotive Suppliers
VAG-GROUP
VALEO
TOYOTA
BMW GM
HYUNDAI-MOBIS
BOSCH
METHODE
BYD
CONTINENTAL
SIEMENS
HELLA
DAIMLER
PORSCHE
FORD
DELPHI
BURMEESTER
PREMO
BERU
WABCO
FCI
SCANIA
HARMAN-BECKER
BorgWarner

12. Consistent Quality Status
WIMA Quality
WPCS
System 1
System 2
Inspection by parameters and/or identity checks per production stage (QCG - Quality Control Gates)
Detection and elimination of deviations from the parameters as the basis of the quality assurance of the respective production stage
Surveillance:
Determination good/bad
Immediate elimination
of non-conformity
SPC (Statistical Process Control)
Continuous control of
quality level within
defined limits
Continuous optimization
of process parameters
Reconstruction of
process data
Consistent Quality Status
All WIMA factories are approved to
ISO 9001:2008 as well as to
ISO 14001:2004
Individual AEC-Q200 qualification on request
All WIMA products are manufactured in accordance with IEC specifications.
All WIMA products are in accordance with RoHS 2011/65/EU
All WIMA plants are subject to WPCS (WIMA Process Control System) to optimize quality.
WPCS is a quality surveillance and optimization system developed by WIMA being a major part of our quality-orientated production.
Issues of WPCS during
production process:
Incoming material inspection
Film metallization
Film inspection
Schoopage
Pre-healing
Pin attachment
Cast resin preparation/ encapsulation
100% final inspection
Testing as per customer requirements

13. WIMA Philosophy
Overall goal of the WIMA Group is highest quality and total customer satisfaction by a performance covering:
As a capacitor specialist with headquarter and production in Germany the competitiveness against multinational conglomerates can only be sustained through a combination of:
a lean and flexible organisation and
excellence in technical innovation, productivity and customer orientation.
The increasing tendency away from the pure “low-price-philosophy” is primarily due to the customer’s desire for further improvement of his own product quality.
Quality
Innovation
Delivery Reliability
Cost Effectiveness

14. WIMA Ecology in Accordance with RoHS 2011/65/EU
Neither in production facilities nor in the product itself WIMA use toxic substances like
Lead PBB/PBDE PCB Arsenic CFC Cadmium Hydrocarbon Chloride Mercury Chromium etc.
WIMA merely use pure, recyclable materials or packaging our components, such as
Carton Cardboard Adhesive tape made of paper Polystyrene
WIMA almost completely refrain from using packing materials such as
Foamed Polystyrene (Styropor®), adhesive tapes made of plastic or metal clips
For the sake of environment we give priority to avoiding the use of material containing harmful substances as well as taking care of the selection of recyclable substances and the reduction of packing materials.

15. Thank You ! WIMA Spezialvertrieb elektronischer
Bauelemente GmbH & Co.KG
Besselstr. 2-4 D Mannheim
Germany Phone: Fax:
Internet: