MALVERN, PENNSYLVANIA — Oct. 07, 2010 — Vishay Intertechnology, Inc. (VSH: NYSE) today announced that it has extended its E/H MIL-PRF-55342 -qualified Thin Film surface-mount resistor chips in the 0505, 1005, 1505, 0705, 1206, and 1010 case sizes to offer a “T” reliability level for space applications. Qualification on larger cases sizes is pending.

The enhanced resistors’ established reliability is assured through 100% screening and extensive environmental testing that includes 100% group A, power conditioning, and Group B lot testing, through which the devices have been rated and approved for a “T” reliability level.

The MIL-PRF-55342 Thin Film resistors were verified in qualification to the American Society for Testing and Materials (ASTM E-595) standard test method for total mass loss (TML) and collected volatile condensable materials (CVCM) from outgassing in a vacuum environment for space level requirements. In addition, the resistors undergo a burn-in period prior to shipment.

Intended for high-reliability military and aerospace applications with stringent performance requirements, the resistors’ all-sputtered wrap around terminations ensure excellent adhesion and dimensional uniformity. The MIL-PRF-55342 Thin Film devices feature a passivated Nichrome resistive element, while their high-purity alumina substrate allows for high power ratings to 500mW.

In addition to very low noise of less than − 25 dB and a low voltage coefficient of < 0.1 ppm/V, the resistors offer an absolute TCR down to ± 25 ppm/°C, tolerances down to 0.1%, and a resistance range from 10Ω to 1.69MΩ, depending on case size and characteristics. The MIL-PRF-55342 Thin Film devices provide a shelf-life stability of ± 0.01% and operate over a temperature range of - 55°C to + 125°C.

Device Specifications Table

Part	Case size	Power rating	Working voltage	Resistance range
M55342/02	0505	125 mW	40 V	20 Ω to 301 kΩ
M55342/03	1005	200 mW	75 V	10 Ω to 649 kΩ
M55342/04	1505	150 mW	125 V	10 Ω to 1.69 MΩ
M55342/06	0705	150 mW	150 V	10 Ω to 475 kΩ
D55342/07	1206	250 mW	100 V	10 Ω to 1.5 MΩ
M55342/10	1010	500 mW	75 V	49.9 Ω to 1 MΩ

Offered in waffle pack or tape-and-reel packaging, production quantities of the new devices are available now, with lead times of 16 to 20 weeks.

Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay's product innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can be found on the Internet at http://www.vishay.com.

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