White Horse Laboratories Week 17-18 Counterfeit Detection Report
Electrical Testing continued a three week climb after hitting a low of 42% in Week 15. Week 17 reached 64% and Week 18 climbed to 79%, reaching an average of 71% for the period. Let’s hope this is a trend that continues.
With volumes increasing since March, the list and range of high failure rate devices reaching 12 different devices having a high failure rate.
Inspection started Week 17 on the same positive trend, improving to 72% before falling back down to 50% in Week 18, averaging just 61% for the period.
Week 17-18 Quality Report
Inspection Accept 61% Electrical Testing Passed 71%
Substandard Parts Listing
STMicroelectronics ST72T141K2MCE (Date Codes 0002 & 0003) – 100% Failure Rate - Blank check error (previously programmed).
Ali M6117D (Date Codes 0613 and 0607) - 7% Failure Rate – Open/short pins and bad protection diodes.
Atmel AT29C020-90PC (Date Codes 0429 and 0421) – 14% Failure Rate - Program & verify error.
Intersil X9455WV24IZ-2.7 (Date Codes 1017 and 1033) – 88% Failure Rate - wrong wiper value.
Yageo LG035M8200BPF-3525 (Date Code not marked or labeled) – 23% Failure Rate - Low Capacitance and high DF.
On Semiconductor CMCPCI102BR (Date Code 0820) – 5% Failure Rate – Output channels not switching
Advanced Power Technology APT60N60BCSG (Date Code 1104) – 5% Failure Rate - Internal short circuit.
Texas instruments TMS9995NL (Date Code not marked or labeled) – 40% Failure Rate – Bad protection diodes.
MicroSemi APT8056BVR (Date Code 0603) – 46% Failure Rate – Low BVdss.
International Rectifier PVT312LSTPBF (Date Code 1140) - 23% failure rate - High on resistance.
Intersil X9250US24Z (Date Code not marked or labeled) – 46% Failure Rate - Wrong wiper values and resistance out-of-tolerance.
Infineon Technology TCA965B (Date Code 0628) - 8% Failure Rate - High output A and wrong voltage detection.
Renesas UPD78F0058YGC-8BT-A (Date Code 0811) – 21% Failure Rate – Open/shorted pins and bad protective diodes.