Space Application Solution High reliabilty and long term consistancy of performance are the first requirement for any space level application. This is why VPG range of Foil Resistors, with their low TCR and low failure rates are the best choice for this application. Function Voltage Control Customer requirements: • Propulsion system must be precise due to high sensitivity of anti-gravity enviroments • High reliability and long term reliability • Tried and tested reliabiltity in previous space applications Suitable products RNC90Y and RNC90Z QPL resistor with established reliability (ER). Meets MIL-PRF-55182/9 High precision: * Absolute TCR for RN90Z: 2ppm/°C max at -55°C to +175°C * Absolute TCR for RN90Y: 5ppm/°C max at -55°C to +125°C; 10ppm/°C max at +125°C to +175°C * Absolute tolerance: 0.005% (50ppm) * Load life stability: ±0.005% for 2000 h, 0.3W @ +125°C * Failure Rate: Level R (per Mil-PRF-55182-9 & MIL-STD-690 303134 - 138 Screen test / flow in compliance with EEE-INST-002 & MIL-PRF-55342 Ultra high-precision SMD, VSMP Z-Foil technology * TCR: 0.2ppm/°C typical (-55°C to +125°C, +25°C ref) * Resistance Tolerance to ±0.02% * Power rating to 400mW at +70°C * Rise Time: 1 ns effectively no ringing www.micross.com 2 Hellesdon Park Road, Norwich, Norfolk, NR6 5DR • +44 • www.micross.com • • • +44(0)1603 (0)1603788967 788967 • www.micross.com [email protected]