low resistance flat chip resistor EU NEW features • Current detecting resistors for power supplies, motor circuits, etc. • Low resistance (100mΩ or under) and high accuracy (±1%) for current detection • High reliability and performance with T.C.R. ±100x10-6/K • Suitable for flow and reflow solderings • Black body color • Products will meet EU RoHS requirements • AEC-Q200 qualified dimensions and construction L c UR73V Size Code c Resistance Range (Ω) 10m W UR73VD 2B (1206) Ni Plating t d Protective Coating Ceramic Substrate UR73VD c L 20m Dimensions inches (mm) W c d t .049±.008 (1.25±0.2) .045±.008 .126±.008 .063±.008 .016±.012 (1.15±0.2) .024±.004 (3.2±0.2) (1.6±0.2) (0.4±0.3) .043±.008 (0.6±0.1) (1.1±0.2) .039±.008 (1.0±0.2) 25m UR73V 2B (1206) Resistive Inner Film Electrode 15m L .039±.012 +.008 .126±.008 .063±.008 (1.0±0.3) .016 -.004 .024±.004 50m, 75m, (3.2±0.2) (1.6±0.2) .026±.012 (0.4 +0.2) (0.6±0.1) -0.1 30m 100m (0.65±0.3) c W Solder Plating Ni Plating t d Resistive Film Protective Ceramic Substrate Coating Inner Electrode ordering information New Part # UR73V Type UR73V UR73VD: Face-down 2B T Power Rating 2B: 0.5W Termination Material T: Sn TD Packaging TD: 4mm pitch punch paper 30L0 Nominal Resistance 4 characters Ex: 30L0: 30mΩ R100: 100mΩ 10L0: 10mΩ F Tolerance F: ±1% For further information on packaging, please refer to Appendix A. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 8/13/15 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 52 resistors UR73V resistors UR73V low resistance flat chip resistor applications and ratings Part Designation Power* Rating T.C.R. (ppm/°C) Max. Resistance Range (Ω) UR73VD 2B 0.5W 0~+250 ±100 15m, 20m, 25m UR73V 2B 0.5W ±100 30m, 50m, 75m, 100m Resistance Tolerance Rated Rated Operating Ambient Terminal Temperature Temperature Temperature Range 10m F: ±1% 70°C 90°C -55°C to +155°C * Rated voltage = √Power Rating X Resistance Value environmental applications Derating Curve 80 80 % Rated Power 100 % Rated Power 100 60 40 60 40 20 20 0 -60 -40 -55 -20 0 20 40 60 80 100 70 Ambient Temperature (°C) 120 140 0 -60 -40 -55 160 155 For resistors operated at an ambient temperature of 70°C or above, the power rating shall be derated in accordance with the above derating curve. -20 0 20 40 60 80 100 120 90 Terminal Part Temperature (°C) 140 160 155 For resistors operated at a terminal part temperature of 90°C or above, the power rating shall be derated in accordance with the above derating curve. Performance Characteristics Parameter Resistance T.C.R. Overload (Short time) Requirement ∆ R ±(%+0.005Ω) Limit Typical Within specified — tolerance Within specified — T.C.R. ±2% ±0.5% Resistance to Solder Heat Rapid Change of Temperature Moisture Resistance Endurance at 70°C ±1% ±1% ±2% ±0.3% ±0.5% ±1% ±2% ±1% High Temperature Exposure ±1% ±0.3% Test Method 25°C +25°C/+55°C and +25°C/+125°C Rated power x 2.5 for 5 seconds 260°C ± 5°C, 10 ± 1 second -55°C (30 minutes), +125°C (30 minutes), 100 cycles 40°C ± 2°C, 90%~95%RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle +155°C, 1000 hours Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 53 8/13/15 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com