Vishay Foil Resistors announced the improved S series of high-precision Bulk Metal® foil (BMF) resistors, which provide a military-grade typical TCR of ±2 ppm/°C from -55°C to 125°C, 25°C ref., tolerance of ±0.005%, and load life stability of ±0.005% for more than 10,000 hours.
The S series comprises 12 model numbers with resistance values from 0.5 Ω to 1 MΩ, with any resistance value available at any tolerance within the resistance range at no additional cost or lead time effect. The devices are rated for power levels up to 2 W at 70°C and can withstand electro-static discharges (ESD) in excess of 25 kV. Rise time for the S series devices is a nearly immeasurable 1 ns without ringing.
Devices in the S series are built to handle unconventional environmental conditional conditions with minimal drift, making them well suited for military/space applications according to EEE-INST-002 specifications and MIL-PRF 55182. The ultimate resistor component for analog applications, the construction of S series resistors guarantees a high level of reliability, stable operation in harsh conditions, and high resistance to thermal shock, mechanical shock, and vibrations. Each S series resistor undergoes a short time overload test of 6.25 times the rated power during the manufacturing process.