1242 Datasheet | Vishay

FEATURES - Temperature coefficient of resistance (TCR): ± 10 ppm/°C maximum4) (- 55 °C to + 150 °C ref. at + 25 °C); through the wiper5); ± 25 ppm/°C - Load life stability: 0.1 % typical ΔR, 1.0 % maximum ΔR under full rated power of 0.25 W at 85 °C for 1000 h - Settability: 0.05 % typical; 0.1 % maximum - Setting stability: 0.1 % typical; 0.5 % maximum, ΔSS - Power rating: 0.25 W at + 85 °C - Resistance range: 50 Ω to 5 kΩ - Resistance tolerance: ± 10 % - Terminal finish: gold plated .. TABLE 1 - MODEL SELECTION- MODEL 1242 (RJ26) TERMINATION STYLE W-edge mount, top adjust X-edge mount, side adjust AVERAGE WEIGHT (g) 0.4 STANDARD RESISTANCE VALUES (in Ω)1) 50, 100, 200, 500, 1K, 2K, 5K STANDARD TOLERANCE2) ± 10 % POWER RATING at + 85 °C AMBIENT 0.25 W NO. OF TURNS 21 ± 2 Note - See figure 1 TABLE 2 - 1242 (RJ26) SERIES ELECTRICAL SPECIFICATIONS3) Temperature Coefficient of Resistance (TCR) End-to-end4) Through the wiper5) Stability Load life at 1000 h Power Rating (at + 85 °C)6) Settability Setting Stability Contact Resistance Variation - CRV (noise) Hop-off High-Frequency Operation Rise time Inductance Capacitance Operating Temperature Range Note - See page 3 for footnotes ± 10 ppm/°C maximum (- 55 °C to + 150 °C, 25 °C ref.) ± 25 ppm/°C 0.1 % typical ΔR 1.0 % maximum ΔR (under full rated power of 0.25 W at + 85 °C) 0.25 W 0.05 % typical; 0.1 % maximum 0.1 % typical; 0.5 % maximum ΔSS ± 3 % or 3 Ω7) 0.25 % typical; 1.0 % maximum 1.0 ns without ringing 0.08 µH typical 0.5 p F typical - 55 °C to + 150 °C TABLE 3 - MECHANICAL SPECIFICATIONS Adjustment Turns Mechanical Stops Internal Terminations Case Material Shaft Torque Backlash 21 ± 2 Wiper idles - no discontinuity All welded - no flux Diallyl-phthalate: green (DAP) 3 oz. in. maximum 0.005 % typical Document Number: 63052 Revision: 06-Nov-08 For any questions, contact: foil@vishay. .vishay. 1 Vishay Foil Resistors Bulk Metal® Foil Technology Precision Trimming Potentiometers, QPL Approved 1/4 Inch...