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Resistor Demonstrates Industrial-Grade Absolute TCR

Fri, 10/17/2008 - 12:32pm

Vishay VPR221ZHaving a 25°C ref., Vishay Intertechnology’s VPR221Z Z-Foil resistor provides an industrial-grade absolute TCR of ±0.050 ppm/°C from 0°C to 60°C and ±0.200 ppm/°C from -55°C to 125°C. The component exhibits a power rating up to 8 W at 25°C per MIL-PRF-39009 (1.500 W in free air), a typical power coefficient ("?R due to self heating") of ±4 ppm/W, and a tolerance of ±0.010%. The unit presents a 1 ns rise time without ringing, a load-life stability of ±0.005% (50 ppm) for 2,000 hours at 25°C, a voltage coefficient of <0.100 ppm/V, current noise of <-42 dB, and thermal EMF of 0.050 µV/°C. The device withstands electrostatic discharges exceeding 25 kV, and demonstrates resistance values from 0.500 O to 500 O. Applications include DC/DC converters, switching and linear power supplies, precision current sensing, feedback circuits, and precision amplifiers in test and measurement instrumentation, medical systems, satellites and aerospace systems, commercial and military avionics, and weapons systems. Pricing starts at $7.00.

Vishay Intertechnology
610-251-5287, www.vishay.com

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