MALVERN, Pa. — Feb. 3, 2015 — Vishay Intertechnology, Inc. (NYSE: VSH) today announced that it has enhanced its E/H series of precision MIL-PRF-55342-qualified thin film surface-mount resistor chips to offer a “T” level failure rate for critical space applications. The QPL devices are qualified to TCR characteristics E, H, K, L, and M in 12 case sizes.
The established reliability of the Vishay Dale Thin Film resistors is assured through 100 % screening and extensive environmental testing that includes complete 100 % Group A power conditioning and Group B lot testing, through which the devices have been rated and approved for a “T” failure rate level. In addition, the thin film resistors meet the ASTM-E595 requirements for outgassing in a vacuum environment.
Intended for satellite and communication applications with stringent performance requirements, the E/H series’ all-sputtered wraparound terminations provide excellent adhesion and dimensional uniformity. The devices feature an electroplated nickel barrier layer for operating conditions to +150 °C, a TAMELOX resistive element, and a high-purity alumina substrate for high power ratings to 1000 mW.
In addition to very low noise of less than –25 dB and a low voltage coefficient of < 0.1 ppm/V, E/H series resistors offer an absolute TCR down to ± 25 ppm/°C, laser-trimmed tolerances down to ± 0.1 %, and a wide resistance range from 10 Ω to 6.19 MΩ, depending on case size and TCR characteristics. The devices provide a shelf-life stability of ± 0.01 % and are offered in antistatic waffle pack or tape-and-reel packaging.
Device Specifications Table:
| Part | Case size | Power rating (mW) | Working voltage (V) | Resistance range (Ω) |
| M55342/01 | 0502 | 50 | 40 | 20 to 150 k |
| M55342/02 | 0505 | 125 | 40 | 20 to 301 k |
| M55342/03 | 1005 | 200 | 75 | 10 to 649 k |
| M55342/04 | 1505 | 150 | 125 | 10 to 1.69 M |
| M55342/05 | 2208 | 225 | 175 | 10 to 3.16 M |
| M55342/06 | 0705 | 150 | 50 | 10 to 475 k |
| D55342/07 | 1206 | 250 | 100 | 10 to 1.5 M |
| M55342/08 | 2010 | 800 | 150 | 10 to 4.02 M |
| M55342/09 | 2512 | 1000 | 200 | 10 to 6.19 M |
| M55342/10 | 1010 | 500 | 75 | 49.9 to 1 M |
| M55342/11 | 0402 | 50 | 30 | 20 to 100 k |
| M55342/12 | 0603 | 100 | 50 | 10 to 258 k |
