White Horse Laboratories Week 25 Counterfeit Detection Report

White Horse Laboratories Week 25 Counterfeit Detection ReportWeek 24 should be fairly fresh in your memory as it was issued the day prior to Week 25.

Week 25 saw a welcomed recovery in acceptance rates following inspection, climbing 15 points from Week 24 to 80% in Week 25. Similarly, lot pass rates on electrical testing climbed 11 points to 83% in Week 25 with volumes gaining 14% on the improved yields.

Bear in mind that not all lots go through both inspection analysis and electrical testing – many lots are rejected after inspection and never make it to testing while other lots are tested only depending on the buyer’s requirements.

Inspection: 80% accept      Testing: 83% passed

Week 25 Substandard Product Listing

Dallas DS17487-5 (Date Code 1109) – 5% failure – program and verify error.

PME Sierra/Agilent/HP HDMP-1022G (multiple Date Codes including 0821 & 0908) - 15% failure – open and short pins, bad protection diodes.

PMC Sierra/Agilent/HP HDMP-1024G (multiple Date Codes including 0911, 0913, 0923, 0931, 0953 & 9850) – 18% failure – open and short pins, bad protection diodes.

Mitsubishi CM50DY-24H (Lot Numbers E72SK2 & 692AA37) – 45% failure - low collector-emitter voltage, Vces.

IXYS DSEI2X101-06A (Date Code 0603) – 100% failure – high forward voltage, Vf.

Infineon ITS4141N (Date Code 1035) – 52% failure – still active at supply voltage of 7V and very low output voltage at supply voltage of 45V.

STMicroelectronics STD45NF758T4 (Date Code 0943) – 100% failure – low breakdown voltage, BVdss, and high on-state drain resistance, Rds(on).

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