White Horse Laboratories Counterfeit Detection Report Week 22

White Horse Laboratories Counterfeit Detection Report Week 22 Week 22 saw the fourth straight week of improving quality figures as lot acceptance from physical examination climbed to nearly 86% with electrical testing lot acceptance dragging behind, but still on a similar upward trajectory, reaching 73.5%, compared to Week 21′s data. This marks one month of steadily improving product quality. Smarter buying or better supplying?

There is a correction, though, to Week 21 where the data should have been 70% acceptance for Physical Inspection and 58.3% of lots with less than 5% failure rate after electrical testing.

Week 20 also introducted our new poll question, “Has the increase in buyer caution had a negative impact on sales and the market overall?”.

Post your vote on this July’s poll at http://conta.cc/Of90yi.

Inspection 85.7%  Accept     Testing 73.5% Pass

Week 22 Quality Report, 2012  Substandard Part Listing

MicroSemi LX1973AIDU (Date Code not marked or labeled) – 51% failure - high output current.

NXP Semiconductors  BBY42 (Date Code not marked or labeled ) - 7.13% failure - high Ir and low diode capacitance.

NEC UPD70320L-8V25 (Date Code not marked or labeled) - 6.82% failure – Signal distortion.
Supertex VP0109N5 (Date Code 1043) – 6.47% failure – High Vds.
Infineon SAF-C517A-LN (Date Codes 1001 and 1044) – 10% failure – Bad protective diodes.
STMicroelectronics LD1084V25 (Date Code not marked or labeled) – 98.75% failure - No output.
Philips Semiconductor N82S129N (Date Codes 9823, 0124, 9826, and 9827) – 79.65% failure – Blank-check error.

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