resistors WU73 wide terminal type low resistance flat chip resistors EU NEW features • Wide terminal type flat chip resistor • High reliability and performance with T.C.R. ±100 x 10-6/K, resistance tolerance ±1% • Suitable for flow and reflow solderings • Black coating color • This product meets EU RoHS requirements. EU RoHS regulation is not intended for Pb-glass contained in electrode, resistor element and glass. • AEC-Q200 Qualified dimensions and construction L c Type c L (Inch Size Code) 2B (0612) W .063±.006 (1.6±0.15 Dimensions inches (mm) W c d +.004 .126± -.012 +0.1) (3.2± -0.3 t .016±.008 .018±.006 .024±.004 (0.4±0.2) (0.45±0.15) (0.6±0.1) Ceramic Substrate Sn Plating t Ni Plating d Protective Resistive Inner Electrode Coating Film Derating Curve 80 80 % Rated Power 100 % Rated Power 100 60 40 20 60 40 20 0 -60 -40 -20 -55 0 20 40 0 -60 -40 -20 -55 60 80 100 120 140 160 70 155 Ambient Temperature (°C) 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 40 60 80 100 120 140 160 105 155 Terminal Part Temperature (°C) 0 For resistors operated at a terminal part temperature of 105°C or above, the power rating shall be derated in accordance with the above derating curve. Please refer to the “Introduction of the derating curves based on terminal part temperature” in the beginning of the catalog. ordering information New Part # WU73 2B Type Size WU73 2B: 1W T Termination Material T : Sn TD Packaging TD: 4mm pitch punched paper For further information on packaging, please refer to Appendix A 10L0 F Nominal Resistance* 4 digits: 3 significant figures + 1 multiplier Ex. 10L0: 10mΩ R100: 100mΩ Resistance Tolerance F: ±1% * Resistance value: 10mΩ~75mΩ = 10L0~75L0 Resistance value: 0.1Ω = R100 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 30 12/03/15 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com wide terminal type low resistance flat chip resistors applications and ratings Part Designation Power Rating Rated Ambient Temperature Rated Terminal Part Temperature T.C.R. (X 10-6/K) Resistance Range (Ω) E-24, 25m, 50m Resistance Tolerance Operating Temperature Range WU732B 1.0W 70°C 105°C ±150 ±100 10m~12m 13m~100m F: ±1% -55°C to +155°C Rated voltage = √Power rating x resistance value If any questions should arise whether to use the “Rated Ambient Temperature” or the “Rated Terminal Part Temperature,” please give priority to the “Rated Terminal Part Temperature.” Prior to use and for more details refer to “Introduction of the derating curves on the terminal part temperature” in the beginning of the catalog. environmental applications Performance Characteristics Parameter Resistance T.C.R. Overload (Short time) Resistance to Solder Heat Bending Test Rapid Change of Temperature Moisture Resistance Endurance at 70°C High Temperature Exposure Requirement ∆ R ±(%+0.005Ω) Limit Typical Within specified — tolerance Within specified — T.C.R. ±2% ±0.2% ±1% ±0.2% ±1% ±0.1% ±2% ±0.3% ±2% ±0.1% ±2% ±0.2% ±1% ±0.1% Test Method 25°C +25°C/-55°C and +25°C/+125°C Rated Voltage x 2 for 5 seconds 260°C ± 5°C, 10 seconds ± 1 second Holding point 90mm, Bending 1 time, Bending 5mm -55°C (30 minutes), +125°C (30 minutes), 1000 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 Additional environmental applications can also be found at www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/03/15 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 31 resistors WU73