Magnetics Make Possible Surface Mount Common Mode Chokes MODEL HM85 Features Operating Temperature Range -40°C to +125°C Ambient Temperature, Maximum +80°C Temperature Rise, Maximum 45°C RoHS Compliant Schematics Specifications @ 25°C Inductance (1-4 or 2-3) mH ±30% Part Number Rated Current Amps DC Resistance mΩ Max. Case Size Height mm Max. HM85-32261LF 0.26 3.0 15.5 STM32 5.6 HM85-37501LF 0.50 2.2 50.0 STM37 8.3 HM85-37102LF 1.00 1.8 70.0 STM37 8.3 HM85-37152LF HM85-37103LF HM85-37223LF HM85-44151LF HM85-50221LF HM85-50591LF HM85-50771LF HM85-50102LF HM85-50132LF HM85-50152LF HM85-50302LF 1.50 10.0 22.0 0.15 0.22 0.59 0.77 1.00 1.30 1.50 3.00 1.5 1.0 0.5 5.6 3.7 5.6 4.7 3.2 3.0 2.4 2.0 100.0 450 850 10.0 30.0 18.5 40.0 55.0 60.0 90.0 120.0 STM37 STM37 STM37 STM44 STM50 STM50 STM50 STM50 STM50 STM50 STM50 8.3 8.3 8.3 9.3 10.0 10.0 10.0 10.0 10.0 10.0 10.0 Notes: (1) (2) Inductance is measured at 100kHz, 0.1Vrms. It is recommended that the temperature of the component (ambient plus temperature rise) does not exceed 125°C under worst case operating conditions. Packaging Embossed Tape and Reel Diameter: Standard: Reel: Capacity: = 13” (330.2mm) Case size STM32 = 500 Units Case size STM37 = 200 Units Case size STM44 = 200 Units Case size STM50 = 150 Units General Note 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.ttelectronicsmagnetics.com © TT Electronics plc Rev. 01 Surface Mount Common Mode Chokes Make Possible MODEL HM85 Outline Dimensions (mm) Figure 1 Recommended Solder Pad Layout Figure 2 Recommended Solder Pad Layout Case Size Figure A B C D E F G STM32 1 12.7 14.7 5.6 10.1 10.4 2.5 1.4 STM37 2 14.4 16.4 8.3 8.6 13.5 4.5 1.6 STM44 2 15.0 18.2 9.3 9.4 15.5 4.5 1.6 STM50 2 18.0 19.4 10.0 11.3 16.8 4.5 1.6 Ordering Information HM85 - 37 223 LF TR Model Series Case Size: STM32, STM37, STM44, STM50 Inductance Code: First 2 digits are significant. Last digit denotes the number of trailing zeros. Tape & Reel Packing Lead Free General Note 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.ttelectronicsmagnetics.com © TT Electronics plc Rev. 01