USR 2-0808 /1510 /2110 /3010 Precision Foil Resistors • • • • • Resistances from 1Ohm to 1MOhms Power Rating to 2Watt Resistance Tolerances to ±0.005% TCR to ±1ppm/K Load Stability to 0.01% SPECIFICATIONS Type USR 2-0808 Resistance Range Power rating (70°C) Tolerances from 1.0 Ohms from 5.0 Ohms from 12.0 Ohms from 25.0 Ohms from 100.0 Ohms USR 2-1510 USR 2-2110 USR 2-3010 1.0 to 300 kOhms 1.0 to 300 kOhms 1.0 to 500 kOhms 1.0 to 1 MOhms 0.6W (<100 kOhms) 0.4 (>100 kOhms) 1.0W (<200 kOhms) 0.6 (>200 kOhms) 1.5W (<300 kOhms) 0.8 (>300 kOhms) 2.0W (<400 kOhms) 1.0 (>400 kOhms) 0.5% / 1% 0.05% / 0.1% / 0.25% / 0.5% / 1% 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1% 0.01% / 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1% 0.005% / 0.01% / 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1% Stability 0.01% Shelf Life Stability 25ppm / ∆R after 1 year 50ppm / ∆R after 3 year Temperature Coefficient max. ±5ppm/K (-55 to 155°C) typ. ±3ppm/K (-55 to 125°C) upon request ±1ppm/K (0 to 60°C) and ±1ppm/K (-55 to 125°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 Derating Power (% from nominal power) 120 100 80 60 40 20 0 50 70 85 100 115 130 145 155 Ambient Temperature (°C) Ordering Information Part Number - Resistance - Tolerance - TCR USR 2-2110 478kOhms 0.1% 5ppm Riedon Inc. 300 Cypress Avenue only 0808: 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 116 rev. 03/2006A USR 2-0808 /1510 /2110 /3010 Precision Foil Resistors SPECIFICATIONS (continued) Temperature Coefficient 800 ∆R/R (ppm) 600 +5ppm/K -5ppm/K 400 200 Nominal Spread ±2.3ppm/K 0 -200 Nominal ∆R/R -400 Nominal Spread ±2.3ppm/K -600 -800 -50 -25 0 25 50 75 100 125 Temperature (°C) Dimensions Type USR 2-0808 Grid D USR 2-0808 Grid J USR 2-1510 USR 2-2110 USR 2-3010 Riedon Inc. 300 Cypress Avenue 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 G (>150kOhms) Ø0.64 Ø0.3 0.1 Ø0.03 Ø0.012 0.004 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 G (>150kOhms) Ø0.64 Ø0.3 0.1 Ø0.03 Ø0.012 0.004 A 30.50 2.0 1.20 0.079 B 14.61 0.2 0.58 0.008 C 10.49 0.2 0.41 0.008 D 2.00 0.1 0.08 0.004 E 10.16 0.2 0.40 0.008 F 4.06 0.1 0.16 0.004 G Ø0.64 0.1 Ø0.03 0.004 A 30.50 2.0 1.20 0.079 B 20.83 0.2 0.82 0.008 C 10.49 0.2 0.41 0.008 D 2.00 0.1 0.08 0.004 E 16.51 0.2 0.65 0.008 F 4.06 0.1 0.16 0.004 G Ø0.64 0.1 Ø0.03 0.004 A 30.50 2.0 1.20 0.079 B 30.48 0.2 1.20 0.008 C 10.49 0.2 0.41 0.008 D 2.00 0.1 0.08 0.004 E 22.86 0.2 0.90 0.008 F 6.60 0.2 0.26 0.008 G Ø0.64 0.1 Ø0.03 0.004 Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page 117 rev. 03/2006A