VPR220

VPR220, VPR221 Vishay Foil Resistors Bulk Metal® Foil Technology Precision Foil Power Resistors in TO-220 Configuration with TCR of ± 2 ppm/°C, Tolerance of to ± 0.01 % and Power Rating to 8 W Any value at any tolerance within resistance range Models VPR220 AND VPR221, made from Vishay Bulk Metal® Foil, offer low TCR, high stability, tight tolerance and fast response time in a small, molded resistor. Model VPR220 is a 2 lead device. Model VPR221 is a 4 lead Kelvin connected device. The 4 leaded version is highly recommended for precision applications requiring ohmic values of 100R or less. TABLE 1 - VPR220 RESISTANCE RANGE (Ω) (1) TIGHTEST TOLERANCE 50 to 10K 25 to < 50 10 to < 25 5 to < 10 ± 0.01 % ± 0.02 % ± 0.05 % ± 0.1 % TYPICAL TCR (2) ±2 ±2 ±2 ±2 MAXIMUM TCR (2) ± 5 ppm/°C ± 7 ppm/°C ± 10 ppm/°C ± 13 ppm/°C weight = 1 g maximum Notes (1) Lower or high values available upon request (2) - 55 °C to + 125 °C, + 25 °C ref. FEATURES Temperature coefficient of resistance (TCR): ± 2 ppm/°C typical (- 55 °C to + 125 °C, + 25 °C ref.) Tolerance: to ± 0.01 % (see tables 1 and 2) Electrostatic discharge (ESD): above 25 000 V Load life stability: ± 0.005 % (25 °C, 2000 h at rated power) Resistance range: 0.5 Ω to 10 kΩ Power rating: 8 W chassis mounted (per MIL-PRF-39009) Non-inductive, non-capacitive design Rise time: 1 ns without ringing Current noise: < - 40 dB Voltage coefficient: < 0.1 ppm/V Non inductive: < 0.08 µH Non hot spot design Therm...