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Week 14 Results
Inspection: 45% Accept
Testing: 54% Pass
Notes:
1. Statistics are calculated as a percentage of all lots dispositioned within the given time period.
2. "Accept" is defined as customer acceptance of report device condition.
3. "Pass" is defined as meeting electrical parameters defined by the agreed upon test plan. |
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| White Horse Laboratories' Quality Report | Work Week 14, 2011 |
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Weekly Quality Report Archives
Greetings!
Since 2009, White Horse has been publishing Weekly Quality Reports. These reports contain lists of part numbers with high electrical failure rates that should be considered high risk. Within these reports, you can also spot trends for overall product quality in the market, industry volume trends, and you can drill into the manufacturers and part numbers to identify highest risk component categories and OCMs. We are now providing you with access to historical reports through the archives available on our website. Note we do not list individual companies. We consider all test and inspection reports to be confidential to the requestor and White Horse is not authorized to disclose and distribute that information. |
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Substandard Product Listing
 | | Tantalum Capacitors are Back - Remarked |
NEC UPD78F9116BMC-5A4-A (Date Codes 0925 & 0927) - 13% failure - poor pin condition and failures for poor pin connection.
Samsung K9WAG08U1A-PIB0 (Date Code 0918) - 38% failure - program and verify error (all units are within 1 to 31 invalid blocks).
AVX TAJA335K016 Tantalum Capacitor (Date Code 1032) - 32% failure - high equivalent series resistance, ESR, and high dissipation factor, DF or tan.
Analog Devices AD743JN (Date Code 0231) - 100% failure - low output voltage.
Vishay SSB43L-E3/52T (Date Code 1038) - 100% failure - high forward voltage, Vf.
Maxim MAX4137EWG (Date Code 0912) - 100% failure - supply line pulling down to the negative rail with no output signal and none of the ground pins are internally connected. | |
White Horse Laboratories (Hong Kong)
2509 Tsuen Wan Industrial Cent
Tsuen Wan, N.T. |
Week 14 Analysis
 Following Week 13's positive movement, Week 14 could not build any momentum with both physical inspection acceptance levels and electrical testing failure results dropping significantly. It is important to note that we did see multiple lots of the same defective part numbers, which drove down the percentages. There was a wide variety of products, ranging from tantalum and electrolytic capacitors to microcontrollers. Japanese manufacturers were significantly represented in what we expect will be a trend for the next 6-8 months. The volume of passive components has grown over the last several weeks, including electrolytic capacitors, tantalum capacitors, and inductors. Many predominant manufacturers are Japanese, including AVX, Murata, and Chemi-con. While they do have globaly diversified manufacturing operations, high-precision devices are made in Japan and suffering from downed production. We encourage you to be more vigilent than usual on these devices as the opportunities are greater now for counterfeiters to try and push product into the market. | Mark A. Rinehart
Managing Director
White Horse Laboratories |
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Holiday Announcement
Hong Kong Easter Holiday
While our Shenzhen operation will not be affected as Easter is not a public holiday in China, our Hong Kong operation will be closed on Friday, April 22, through Monday, April 25, reopening on Tuesday, April 26.
Please schedule your orders accordingly. Bearing in mind that delivery service from Shenzhen to Hong Kong is next-day, deliveries to be shipped prior to the Easter holiday will need to ship from our Shenzhen operation by Wednesday, April 20.
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White Horse Laboratories (China)
Suite 809 Dynamic World
Zhong Han Road, Futian District, Shenzhen
China |
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We hope you find this report informative and usefull for your business.
All the best,
Mark A. Rinehart
White Horse Laboratories |
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