INTRODUCTION
Vishay Foil precision trimmers have the Bulk Metal® Foil resistive element which possesses a unique inherent temperature and load life stability. Plus, their advanced virtually back lash-free adjustment mechanism makes them easy to set quickly and accurately and keeps the setting exactly on target.
FEATURES
⢠Temperature coefficient of resistance (TCR): (- 55 °C to + 125 °C ref. at + 25 °C)
- ± 15 ppm/°C (model 1280G);
- ± 5 ppm/°C (model 1285G)3);
- through the wiper ± 50 ppm/°C
⢠A smooth and unidirectional resistance with leadscrew adjustment
⢠Load life stability: 0.5 % maximum ÎR under full rated power at + 25 °C for 2000 h
⢠Electrostatic discharge (ESD) up to 25 000 V
⢠Settability: 0.05 % typical; 0.1 % maximum
⢠Setting stability: 0.1 % typical; 0.5 % maximum, ÎSS
⢠Power rating: 0.75 W at + 25 °C
⢠Resistance range: 10 Ω to 20 kΩ
⢠Resistance tolerance: ± 10 %, ± 5 %
⢠Backlash: < 0.05 %
⢠Tap test: 0.05 % typical; 0.1 % maximum
⢠âOâ-ring prevents ingress of fluids during any board cleaning operation
⢠Terminal finish: gold plated (tin/lead finish available on request)
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