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WK73 resistors c L c UNDER DEVELOP. wide terminal type flat chip resistors EU features * Flat chip resistors of wide terminal type * High reliability and performance with T.C.R. 100 x 10-6/K, resistance tolerance 1% * Marking: Black protective coat * Products with lead-free terminations meet EU RoHS requirements. Pb located in glass material, electrode and resistor element is exempt per Annex 1, exemption 5 of EU directive 2005/95/EC dimensions and construction Type (Inch Size Code) L Dimensions inches (mm) W c d t W 2B (0612) 2H (1020) 2J (1218) 3A (1225) .063.006 .126.006 .012.008 .018.006 (1.60.15) (3.20.15) (0.30.2) (0.450.15) .098.006 .197.006 .016.008 (2.50.15) (5.00.15) (0.40.2) .122.006 .181.006 .016.008 .030.006 (3.10.15) (4.60.15) (0.40.2) (0.750.15) .122.006 .252.006 .018.008 (3.10.15) (6.40.15) (0.450.2) t d Inner Resistive Electrode Film Solder Plating Ni Plating .024.004 (0.60.1) Protective Coating Ceramic Substrate Derating Curve 100 80 % Rated Power 60 40 20 0 -60 -40 -20 -55 0 20 40 60 80 100 120 140 160 70 155 Ambient Temperature (C) ordering information New Part # WK73S Type WK73S WK73R 2J Size 2B: 0.75W 2H: 1W 2J: 1W 3A: 1.5W T Termination Material T: Sn TE Packaging TD: 0612: 7" 2mm pitch punched paper TDD: 0612 10" paper tape TE: 1020, 1218, 1225: 7" punched plastic TED: 1020, 1218, 1225: 10" punched plastic For further information on packaging, please refer to Appendix A 33L0 Nominal Resistance 1%: 3 significant figures + 1 multiplier "R" indicates decimal on value <100 5%: 2 significant figures + 1 multiplier "R" indicates decimal on values <10 All values less than 0.1 (100m) are expressed in m with "L" as decimal. Ex: 33m, 1% = 33L0 F Resistance Tolerance F: 1% J: 5% Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 11/07/08 30 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com WK73 wide terminal type flat chip resistors applications and ratings Part Designation Power Rating @ 70C T.C.R. (ppm/C) Max. 800 200 Resistance Range E-24 (F1%) -- 30m - 390m 430m - 9.1 10 - 3.3k 3.6k - 1M -- 27m - 200m 220m - 9.1 10 - 430k 470k - 1M -- 33m - 220m 240m - 9.1 10 - 510k 560k - 1M -- 22m - 30m 33m - 330m 360m - 9.1 10 - 330k 360k - 1M E-24 (J5%) 10m - 27m 30m - 390m 430m - 9.1 10 - 3.3k 3.6k - 1M 10m - 24m 27m - 200m 220m - 9.1 10 - 430k 470k - 1M 10m - 30m 33m - 220m 240m - 9.1 10 - 510k 560k - 1M 10m - 20m 22m - 30m 33m - 330m 360m - 9.1 10 - 330k 360k - 1M Maximum Working Voltage Maximum Overload Voltage Operating Temperature Range WK73S2B 0.75W WK73R2B WK73R2B* WK73S2H WK73R2H WK73S2J WK73R2J 1.0W 1.0W 1.0W 1.0W 100 100 100 800 200 100 100 200 800 200 100 100 200 800 300 200 100 100 200 200V 400V 200V 400V -55C to +155C 200V 400V WK73S3A 1.5W 200V 400V WK73R3A * Under Development. 1.5W 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 70C High Temperature Exposure Requirement Limit Within specified tolerance Within specified T.C.R. 2% 1% 1% 0.5% 2% 2% 1% R Typical -- -- 0.2% 0.2% 0.1% 0.1% 0.2% 0.2% 0.2% 25C +25C/-55C and +25C/+125C Rated Voltage x 2.5 for 5 seconds 260C 5C, 10 seconds 1 second Holding point 90mm, Bending 1 time, Bending 5mm -55C (30 minutes), +155C (30 minutes), 5 cycles 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle +155C, 1000 hours Test Method 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. 12/16/08 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com 31 resistors |
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