Resistors Heatsink Mount High Power Resistors WMHP Series WMHP Series AEC-Q200 (WMHP35) TO-220 & & TO-247 TO-247 standard standard power power packages packages TO-220 Very low low thermal thermal resistance resistance Very Non-inductive thick thick film film technology technology Non-inductive 20 to to 100 100 watt watt high high power power resistors resistors 20 Single screw screw mounting mounting to to heatsink heatsink Single Tailored heatsink heatsink WMHP-HS WMHP-HS available available Tailored Suitable for for high high frequency frequency // fast fast pulse pulse use use Suitable All parts comply with EU Directive 2011/65/EU (RoHS2) All parts are Pb-free and comply withare EU Pb-free Directiveand 2011/65/EU amended by (EU) 2015/863 (RoHS3) Electrical Data WMHP20 Package style Power rating watts 20 Power rating watts 1.5 Limiting element voltage volts Resistance range ohms Dielectric strength volts Working temperature range Insulation resistance WMHP50 35 50 2.5 3 Conditions 100 Heatsink with 25C flange temperature 3.5 Without heatsink, in free air 25C 700 dc or ac rms R05 - 10K 1800 -65 to 150 ohms ac rms for 60s -65 to 175 >10G % ppm/C WMHP100 TO-247 350 C Tolerances TCR WMHP35 TO-220 Between terminals and tab 1R0: 5 >1R0: 1, 5 R20: 1000 >R20-3R0: 300 >3R0-10R: 100 >10R: 50 25 to 105C Standard values E24 preferred Physical Data Dimensions (mm) & Weight (g) TO-220 TO-247 A 10.16 0.25 15.75 0.26 B 15 0.3 20.7 0.26 C 4.6 0.2 4.95 0.26 D 3.85 0.15 3.63 0.1 E 13.75 0.5 14.48 1.27 F 4 max 2.79 0.76 G 5.08 0.25 3.63 0.18 H 0.78 0.08 1.52 0.1 J 1.3 0.1 10.16 0.26 K 6.4 0.25 5.33 0.26 L 0.51 0.15 0.81 0.26 M 2.27 0.25 2.41 0.26 Wt 2.0 nom 3.7 nom TO-220 TO-247 Performance Data Load at Rated Power: 2000hrs at rated power Test Short Term Overload: 2 x rated power with applied voltage not to exceed 1.5 x maximum continuous operating voltage for 5 seconds Damp Heat with Load: 40 2C, 90 - 95% RH, maximum working voltage 1.5 hours on, 0.5 hours off, 1000 hours Thermal Shock: -65C/150C, 100cycles Terminal Strength: 2.4N pull test General Note Note General TT Electronics reserves the right to make changes in product specification without notice or liability. 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. All information is subject to TT Electronics' own data and is considered accurate at time of going to print. (c) TT TT Electronics Electronics plc plc (c) R% R% R% R% R% Performance 1 0.5 1 0.3 0.2 BI Technologies Technologies IRC IRC Welwyn Welwyn BI www.ttelectronics.com/resistors www.ttelectronics.com/resistors 09.17 07.18 Resistors Heatsink Mount Mount High High Power Power Resistors Resistors Heatsink unt High Power Resistors Heatsink Mount High Power Resistors WMHP Series WMHP Series WMHP Series Temperature Derating Mounting Temperature Derating The resistor should be mounted to a heatsink using a suitable thermal interface material. The maximum tightening torque for the M3 mounting screw is 0.9Nm. TO-220 Pulse Performance TO-247 TO-247 Typical High Frequency Performance Typical High Frequency Performance Pulse Performance ngle Pulse (Pmean << Pr) Condition 1000 TO-220 A tailored heatsink is available which accommodates both TO-220 and TO-247 package styles. This is WMHP-HS and product data is available at http://www.ttelectronics.com/sites/default/files/resistorsdatasheets/WMHP-HS.pdf Single Pulse (Pmean << Pr) Condition Peak Power (W) 100 WMHP100 WMHP50 WMHP35 WMHP20 10 0.1 1 10 100 1000 10000 100000 Pulse Duration (ms) ns 1s is dependentPulse on mounting conditions. The short performance for durations 1sterm is dependent on mounting conditions. The shortcharacteristics term Typical high frequency for WMHP35-220R. Self frequency resonant frequency is 1GHz. Typical high characteristics for WMHP35-220R. Self resonant frequency is 1GHz. wer rating for 5s. overload power limit is 2 x power rating for 5s. Procedure Ordering Procedure 0KJ (WMHP35 atExample: 10 kilohms 5%, Pb-free)(WMHP35 at 10 kilohms 5%, Pb-free) WMHP35-10KJ General Note Note General TT Electronics Electronics reserves reserves the the right right to to make make changes changes in in product product specification specification without without notice notice or or liability. liability. TT All information information isis subject subject to to TT TT Electronics' Electronics' own own data data and and isis considered considered accurate accurate at at time time of of going going to to print. print. All (c) TT TT Electronics Electronics plc plc (c) BI Technologies Technologies IRC IRC Welwyn Welwyn BI www.ttelectronicsresistors.com www.ttelectronics.com/resistors www.ttelectronics.com/resistors www.ttelectronicsresistors.com 07.18 09.17