Resistors Surface Mount High Power Resistors WSMHP Series TO-263 surface mount package Very low thermal resistance Non-inductive, 20, 25 and 35 wa tt high power resistors Low profile package for high density PCB installation Suitable for board mounting with either solder or clip AEC-Q200 qualified All All parts parts arare e Pb-Pb-frfree ee and and ccomply omply with with EU EU DirDirectivective e 2011/65/EU 2011/65/EU amended amended bby y (EU) (EU) 2015/863 2015/863 (R(RoHS3)oHS3) Electrical Data WSMHP20 WSMHP25 WSMHP35 Conditions Power rating watts 20 25 35 Heatsink with 25C flange temperature Power rating watts 2.5 Without heatsink Thermal resistance C/W 3.3 Resistor hotspot to flange Limiting element voltage volts 500 dc or ac rms Resistance range ohms 0R5 100K Dielectric strength volts 2000 dc for 60s Working temperature range C -55 to 175 Insulation resistance ohms >10G Between terminals and tab Tolerances % 1R0: 5 >1R0: 1, 5 TCR ppm/C 3R0: 300 >3R0-10R: 100 >10R: 50 25 to 105C Standard values E24 preferred Physical Data Dimensions (mm) & Weight (g) A 10.1 0.3 B 10.1 0.3 C 4.6 0.2 D 5.0 1 E 1.27 0.3 F 2.54 0.5 G 3.2 0.2 H 0.43 0.07 J 0.88 0.12 K 1.32 0.15 L 5.08 0.1 M 1.35 0.1 0.13MAX O 1.5 0.5 P 2.54 0.1 Q 6.9 0.3 T 6.0 1 0.13MAX Wt 1.5 nom. General Note BI Technologies IRC Welwyn TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics own data and is considered accurate at time of going to print. www.ttelectronics.com/resistors TT Electronics plc 05.21Surface Mount High Power Resistors SSSSuuuurrrrffffaaaacccceeee M M M Moooouuuunnnnt Ht Ht Ht Hiiiigggghhhh P P P Poooowwwweeeerrrr R R R Reeeessssiiiisssstotototorrrrssss WWSSMHP SeriesMHP Series Performance Data Performance Data Test Performance R% Load at Rated Power: 2000hrs at rated power 1 Load at Rated Power: 2000hrs at rated power R% 1 R% Short Term Overload: 2 x rated power with applied voltage not to exceed 1.5 x maximum continuous operating voltage for 5 seconds 0.3 Short Term Overload: 2 x rated power with applied voltage not to exceed 1.5 x maximum continuous operating voltage for 5 seconds R% 0.3 R% High Temperature Exposure: MIL-STD-202 method 108, at 175C for 1000hrs, no load 0.25 High Temperature Exposure: MIL-STD-202 method 108, at 175C for 1000hrs, no load R% 0.25 R% Temperature Cycling: JESD22 method JA-104, -55C/175C, 1000cycles 0.3 Temperature Cycling: JESD22 method JA-104, -55C/175C, 1000cycles R% 0.3 R% Biased Humidity: MIL-STD-202 method 103, 1000hrs 85C/85% RH, 10% of operating power 0.5 Biased Humidity: MIL-STD-202 method 103, 1000hrs 85C/85% RH, 10% of operating power R% 0.5 R% Mechanical Shock: MIL-STD-202 method 213 0.5 Mechanical Shock: MIL-STD-202 method 213 R% 0.5 R% Vibration: MIL-STD-202 method 204, peak acceleration 5g for 20min, 12 cycles each of 3 orientations, 10-2000Hz 0.2 Vibration: MIL-STD-202 method 204, peak acceleration 5g for 20min, 12 cycles each of 3 orientations, 10-2000Hz R% 0.2 R% Resistance to Soldering Heat: JIS-C-5201-1 4.18 IEC 60115-1 4.18, 2605C for 10 seconds R% 0.5 Resistance to Soldering Heat: JIS-C-5201-1 4.18 IEC 60115-1 4.18, 2605C for 10 seconds 0.5 R% HBM ESD: AEC-Q200-002, human body 25kV (AD) R% 1 HBM ESD: AEC-Q200-002, human body 25kV (AD) 1 Solderability: J-STD-002, 2405C for 3 seconds 90% coverage Solderability: J-STD-002, 2405C for 3 seconds 90% coverage R% Moisture Resistance: MIL-STD-202 method 106, 10 cycles, 24hours R% 0.5 Moisture Resistance: MIL-STD-202 method 106, 10 cycles, 24hours 0.5 Bending Strength: AEC-Q200-005, Bending 2mm for 60 seconds R%R% 0.25 Bending Strength: AEC-Q200-005, Bending 2mm for 60 seconds 0.25 Terminal Strength: AEC-Q200-006, 1.8Kg for 60 seconds R% 0.2 R% Terminal Strength: AEC-Q200-006, 1.8Kg for 60 seconds 0.2 Temperature Derating Typical Thermal Performance on FR4 Pad Heatsink Dim. x, y P (W) 90C, 35m 50, 40 4.5 45, 35 4 40, 30 3.5 35, 25 3 20, 10 2 Characterisation carried out using 35m PCB copper pad weights, with temperature of 90C used as a maximum reference on the PCB. P (W) is power when the measurement point reaches 90C. 90C, 35m Pulse Performance Typical High Frequency Performance Single Pulse (Pmean << Pr) Condition Pulse performance for durations 1s is dependent on mounting conditions. The short term Typical high frequency characteristics for WSMHP35-220R. Self resonant frequency is 1GHz. overload power limit is 2 x power rating for 5s. General Note BI Technologies IRC Welwyn TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics own data and is considered accurate at time of going to print. www.ttelectronicsresistors.com www.ttelectronics.com/resistors TT Electronics plc 05.21