The Complete USB 2.0 EMI & ESD Solution

You have trouble with noise on your USB 2.0 interface and don’t know how to solve it?
We have the solution for you.

In most EMI labs you can find our "USB 2.0 EMC Adapter" (p/n 829 999 STICK). This stick can be connected to your device during test to improve its EMC susceptibility. In general you will pass all the EMI and ESD test now.

Now you have the choice:

You can either redesign your board and integrate the filter layout like shown above. We have prepared a special design bag (p/n 829 999 BAG) containing the necessary parts.

In this design bag
  Order Code Size Electrical Specification
L1 - WE-CNSW 744 232 090 1206 Z = 90 Ω; IR = 0.37 A
L2 + L3 - WE-CBF 742 792 651 0603 Z = 600 Ω; IR=1.0 A
D - WE-TVS 824 001 02 SOT23-6L VDC= 6.0 V; Cx = 0.4 pF
C1 - WCAP-CSGP 885 012 206 051 0603 X7R; 680 nF 10 %; 16V
Available smaller packages
  Order Code Size Electrical Specification
L1 - WE-CNSW 744 231 091 0805 Z = 90 Ω; IR = 0.37 A
L2 + L3 - WE-CBF 742 792 79 0402 Z = 600 Ω; IR=0.2 A
D - WE-TVS 824 001 52 SOT-563 VDC= 6.0 V; Cx = 0.4 pF
C1 - WCAP-CSGP 885 012 105 017 0403 X5R; 220 nF 20 %; 16V
Also available in ultra tiny design, for high current handling & USB double port protection
  Order Code Size Electrical Specification
L1 - WE-CNSW 744 230 900 0603 Z = 90 Ω; IR = 0.55 A
L2 + L3 - WE-CBF 742 792 040 0805 Z = 600 Ω; IR=2.0 A
D - WE-TVS 824 015
SOT23-6L VDC= 6.0 V; Cx = 2.0 pF
C1 - WCAP-CSGP 885 012 207 077 0805 X7R; 680 nF 10 %; 25V

The smarter way

If you don’t want to lose time and save thousands of dollars for redesigning your board you can use our patented “WE-EPLE USB 2.0 Type A Connector” (p/n 849 2121).

This world’s first integrated USB 2.0 jack with integrated EMI & ESD filter is fully compatible with standard THT USB 2.0 jack (e.g. our p/n 614 004 160 21). All you have to do is to replace your existing plug with our USB 2.0 EPLE jack and pass the test in your EMI lab.

WE-USBH USB-A EPLE Connector

  • Shrink PCB size & reduce noise!
  • Order code 849 2121
  • 1st pin compatible USB connector - fully integrated
  • ESD protection (Flow Thru) <10V @ 15 kV
  • Data line noise suppression 90 Ω @ 100 MHz
  • VCC line noise suppression >40 dB @ 1 MHz ~ 1 GHz
  • Specified filter characteristics
  • USB 2.0 tested & approved
  • Same size as 614 004 160 21

Electrical Characteristics

VCC Line Noise Suppression

Data Line Impedance

ESD Suppression