resistors RK73B, RK73Z, RK73H, RK73-RT, RK73G, RK73A, RK73N, RN73, RN73H, SG73, SG73-RT, HV73,WK73 surface mount resistors environmental applications Performance Characteristics Parameter Thermal Shock RK73B RK73Z RK73H RK73G RK73A RK73N** RN73** RN73H** SG73 HV73 WK73** Maximum Δ R ±0.5% 50mΩ maximum after test ±0.5% ±0.5% ±0.5% ±0.5% ±0.25% ±0.1% ±0.5% ±1.0% ±1.0% Test Method MIL-STD-202, Method 107, -55°C to +125°C, 100 cycles **RN73: -55°C to +125°C, 5 cycles RN73H: 2B, 2E: -55°C to +125°C, 500 cycles **WK73, RK73N: -55°C to +155°C, 5 cycles Low Temperature Operation RK73B RK73Z RK73H RK73G RK73A RK73N RN73 RN73H SG73 HV73 WK73 ±1.0% 50mΩ maximum after test ±1.0% ±1.0% ±1.0% ±1.0% ±0.15% ±0.15% ±1.0% ±1.0% ±0.5% MIL-R-55342 π 4.7.4, 1 hour @ -55°C followed by 1 hour of RCWV* High Temperature Exposure RK73B** RK73Z** RK73H** RK73G** RK73A** RK73N RN73 RN73H** SG73 HV73 WK73 ±0.75% 50mΩ maximum after test ±0.5% ±0.5% ±1.0% ±1.0% ±0.25% ±0.1% ±1.0% ±1.0% ±1.0% MIL-R-55342 π 4.7.6, 100 hours @ 125°C **RK73Z1H **RK73B, RK73H and RN73H: 1000 hours @ 155°C RK73Z (1E, 1J, 2A, 2B, 2E, 2H, 3A) RK73G (1E, 1J, 2A, 2B) RK73A Short Time Overload RK73B RK73Z RK73H RK73G RK73A RK73N RN73 RN73H SG73 HV73 WK73 ±2.0% 50mΩ maximum after test ±2.0% ±2.0% ±2.0% ±2.0% ±0.1% ±0.05% ±2.0% ±2.0% ±2.0% MIL-R-55342 π 4.7.5, 2.5 x RCWV for 5 seconds ** RN73, RN73H: 2.5 or Max. Overload Voltage, whichever is less, for 5 seconds Resistance to Solder Heat RK73B RK73Z RK73H RK73G RK73A RK73N RN73 RN73H SG73 HV73 WK73 ±3.0% 50mΩ maximum after test ±3.0% ±0.5% ±0.5% ±1.0% ±0.1% ±0.05% ±1.0% ±1.0% ±1.0% MIL-R-55342 π 4.7.7, 260°C for 10 seconds Terminal Strength-Bend RK73B RK73Z RK73H RK73G RK73A RK73N RN73 ±0.5% ±0.5% ±0.5% ±0.5% ±0.5% ±1.0% ±0.35% 2mm min. deflection in either direction for 10 seconds * RCWV = Rated Continuous Working Voltage. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 34 3/05/08 KOA Speer Electronics, Inc. • Bolivar Drive • P.O. Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com surface mount resistors environmental applications (continued) Performance Characteristics Parameter Terminal Strength-Bend (cont.) Maximum Δ R Test Method RN73H SG73 HV73 WK73** ±0.35% ±1.0% ±1.0% ±1.0% 2mm min. deflection in either direction for 10 seconds **WK73: holding point 90mm, bending 1 time, bending 5mm RK73B RK73Z RK73H RK73G RK73A RK73N RN73 RN73H** SG73 HV73 WK73 ±3.0% 100mΩ maximum after test ±3.0% ±2.0%(1H, 1E), +3.0%(1J, 2A, 2B) ±3.0% ±3.0% ±0.1% ±0.1% ±1.0% ±1.0% ±1.0% MIL-STD-202, Method 103, 40°C, 90 - 95% RH, 1000 hours ** RN73H: 85°C, 85% RH, 1000 hours RK73B RK73Z RK73H RK73G RK73A RK73N RN73 RN73H** SG73 HV73 WK73 ±2.0%(1J - 2B), +3.0%(all others) 100mΩ maximum after test ±2.0%(1J - 2B), +3.0%(all others) ±2.0%(1J - 2B), +3.0%(all others) ±2.0% ±3.0% ±0.5% ±0.1% ±3.0% ±2.0% ±2.0% MIL-STD-202, Method 108, 70°C, 1000 hours @ RCWV*, 1.5 hr ON, 0.5 hr OFF ** RN73H: 85°C, 1000 hours @ RCWV, 1.5 hr ON, 0.5 hr OFF Moisture Resistance Life Pulse RK73B RK73Z RK73H RK73G RK73A RK73N RN73 RN73H SG73 WK73 ±2.5% ±5.0% ±1.5% ±1.5% ±5.0% ±5.0% ±0.30% ±0.30% ±5.0% ±5.0% 2.5 x RCWV, but not exceeding maximum overload voltage, 1 second ON, 25 seconds OFF, 10,000 cycles Temperature Cycling RK73B RK73Z RK73H RK73G RK73A RK73N RN73 RN73H SG73 HV73 WK73** ±1.0% 50mΩ maximum after test ±0.75% ±0.5% ±1.0% ±1.0% ±0.25% ±0.25% ±1.0% ±0.5% ±0.5% 30 minutes @ -55°C, 15 minutes @ +25°C, 30 minutes @ +125°C, 15 minutes @ +25°C, 5 cycles **WK73: 30 minutes @ -55°C, 30 minutes @ +155°C, 5 cycles Dielectric Withstanding Voltage RK73B RK73Z RK73H RK73G RK73A RK73N RN73 RN73H SG73 HV73 WK73 1H: 100V 1E: 100V 1J: 100V 2A: 400V 2B: 400V 2E: 400V 2H: 400V 3A: 400V MIL-STD-202, Method 301 1J: 500V 2A: 800V 2B: 1000V Sulfuration Test RK73-RT SG73-RT ±0.5% Pulse Limitation Curves are available at www.koaspeer.com H2S 1000ppm, 25°C, 90% RH, 720 hours * RCWV = Rated Continuous Working Voltage. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 3/04/08 KOA Speer Electronics, Inc. • Bolivar Drive • P.O. Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 35 resistors RK73B, RK73Z, RK73H, RK73-RT, RK73G, RK73A, RK73N, RN73, RN73H, SG73, SG73-RT, HV73,WK73