Date: 18/02/2009

Surface-mount bulk metal Z-foil resistors for AMS applications

Vishay Intertechnology announced that its new series of wraparound surface-mount Bulk Metal Z Foil (BMZF) resistors for avionics, military and space (AMS) applications is now available with post-manufacturing screening (PMO) in accordance with EEE-INST-002, DSCC, and EPPL. The new screening option is available for devices in the 0805 through 2512 case sizes.

Some of the key features are:

1. Provide power ratings up to 750 mW at 70°C with stability down to ±0.005%, typical TCR of ±0.2 ppm/°C, power coefficient of resistance ("?R due to self heating") of ±5 ppm at rated power, and tight tolerance of ±0.02%.
2. Available in any value from 10 O to 100 kO that can retains its initial accuracy within several parts per million
3. Thermal EMF of less than 0.1 µV/°C
4. Voltage coefficient below 0.1 ppm/V
5. Inductance lower than 0.08 µH
6. Response time faster than 1 ns effectively no ringing
7. The noise generated by these resistors is less than -40 dB
8. ESD Immunity up to 25 kV,
9. Can withstand 100-Cycle thermal shock with a shift of < 20 ppm and thermal stabilization Time of < 1 Second;
10. After 2,000 hours under full rated load at 70°C, the resistance shift experienced by this SMD series is just 0.005 % or more than an order of magnitude lower than the typical 1.0% experienced by other resistor technologies.
11. A conventional wrap-around termination and top coating ensures safe handling during the mounting process and provides stability during the multiple thermal cyclings the device will experience over its lifetime.

Availability: samples and production quantities of the new wrap-around AMS resistors with post-manufacturing screening are available now.

Package: Available in waffle-pack and tape-and-reel packaging