UPW 2-0808 Precision Foil Resistors • • • • • Resistances from 1Ohm to 150kOhms Power Rating to 0.25Watt Resistance Tolerances to ±0.01% TCR to ±4ppm/K Load Stability to 0.01% SPECIFICATIONS Type UPW 2-0808 Resistance Range 1.0 to 4.99 Ohms 5.0 to 24.99 Ohms Power rating (70°C) 25.0 to 99.99Ohms 0.25W Tolerances 0.5% / 1% 100 to 150kOhms 0.20W 0.05% / 0.1% / 0.25% / 0.5% / 1% Stability 0.01% / 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1% 0.01% Shelf Life Stability 25ppm / ∆R after 1 year Temperature Coefficient max. ±8ppm/K (-55 to 125°C) max. ±4ppm/K (0 to 60°C) Insolation Resistance > 10GOhm Thermal EMF < 0.1µV/K Operating Temperature Range -55 to 155°C Resistor Material NiCr-Foil Substrate Al2O3 Housing PBTP / Epoxy Connector Material Cu tinned Terminals 2 Ordering Information Part Number - Resistance - Contact - Tolerance - TCR UPW 2-0808 5.10kOhms J 0.01% 4ppm Riedon Inc. 300 Cypress Avenue Grid (E) 3.81mm (0.15inches) = D Grid (E) 5.08mm (0.2inches) = J Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page 110 rev. 03/2006A UPW 2-0808 Precision Foil Resistors SPECIFICATIONS (continued) Temperature Coefficient 1500 ∆R/R (ppm) 1000 +8ppm/K -8ppm/K 500 0 Nominal Spread ±2.8ppm/K -500 Nominal ∆R/R Nominal Spread ±2.8ppm/K -1000 -1500 -50 0 -25 25 100 75 125 Temperature (°C) Derating 120 Power (% from nominal power) 50 100 80 60 40 20 0 25 40 55 70 85 100 115 130 145 155 Am bient Tem perature (°C) Dimensions Type D / Grid = 3.81mm (0.15inches) Dimension mm tol. (±mm) inches tol. (±inches) A 28.30 2.0 1.11 0.079 B 7.62 0.1 0.30 0.004 C 8.30 0.2 0.33 0.008 D 2.00 0.1 0.08 0.004 E 3.81 0.1 0.15 0.004 F 2.67 0.1 0.11 0.004 G Ø0.64 0.1 Ø0.03 0.004 Type J / Grid = 5.08mm (0.2inches) Riedon Inc. 300 Cypress Avenue Dimension mm tol. (±mm) inches tol. (±inches) A 28.00 2.0 1.10 0.079 B 7.49 0.1 0.29 0.004 C 8.00 0.2 0.31 0.008 D 2.00 0.1 0.08 0.004 E 5.08 0.1 0.20 0.004 F 2.49 0.1 0.10 0.004 G Ø0.64 0.1 Ø0.03 0.004 Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page 111 rev. 03/2006A