1. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. CIRCUIT PROTECTION SOLUTIONS ESD Protection for USB 3.0 Ports

2. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. USB3.0 Protection Using TVS Diode Arrays (SPA TM ) Two Device Solution

3. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. Two Device Solution for USB3.0 Protection -ESD solutions are silicon-based for lowest possible clamping voltage Signal GNDCase GND USB ControllerUSB Port SP3003 Outside World Optional SSTX+ SSTX- SSRX+ SSRX- GND D+ D- SP3010 IC NC *Package is shown as transparent V BUS SP3010-04UTG - 0.45pF, 4 channels - 2.5mm x 1.0mm SP3003-02XTG - 0.65pF, 2 channels - 1.6mm x 1.6mm

4. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. ESD Protection of Super Speed Data Lines -SP3010-04UTG; silicon-based technology -Capacitance value of 0.45pF Key feature of the silicon technology: - Low dynamic resistance - Allows SPA product to have low clamping voltage

5. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. USB3.0 Protection Using TVS Diode Arrays (SPA TM ) Fully Integrated Solution

6. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. Fully Integrated Solution for ESD Protection -Silicon-based for lowest possible clamping voltage -Protection on all data lines is 0.40pF diodes Signal GNDCase GND USB ControllerUSB Port Outside World V BUS SSTX+ SSTX- SSRX+ SSRX- GND D+ D- SP3011 IC *Package is shown as transparent SP3011-06UTG - 0.40pF, 6 channels - 3.5mm x 1.35mm

7. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. SP3011-06UTG -Six-channel solution to protect all data lines in USB 3.0 port -Uses same straight-through pin out to simplify board design Key feature of the silicon technology: - Low dynamic resistance - Allows SPA product to have low clamping voltage

8. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. Signal Integrity Test Boards

9. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. ESD Device SP3011-06UTG USB Connector Signal Integrity Test Boards -Verifying Eye Diagrams with 5Gbps data rates USB Connector

10. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. Test Setup -Board shown without the SP3011-06UTG

11. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. Eye Diagram -Results without the SP3011-06UTG -PASS

12. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved. Eye Diagram -Results with the SP3011-06UTG -PASS

13. Modified_010509 CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc. 2010. All rights reserved.  Littelfuse has two protection schemes for a USB 3.0 port  SP3010-04UTG & SP3003-02XTG  SP3011-06UTG  Eye diagram testing at 5Gbps proves compatibility with the Super Speed environment  Silicon technology offers the lowest clamping voltage compared to competing technologies due to it’s lower dynamic resistance  For more on USB3.0 Protection please read our white paper online at:  http://www.littelfuse.com/data/en/Application_Notes/Littelfuse-USB-3-ESD-Protection.pdf http://www.littelfuse.com/data/en/Application_Notes/Littelfuse-USB-3-ESD-Protection.pdf Summary - USB3.0 Protection using Littelfuse TVS Diode Arrays (SPA TM )