HSE-B20381-056H

Additional Resources: Product Page date 08/05/2022 page 1 of 4 MODEL: HSE-BX-056H | DESCRIPTION: HEAT SINK FEATURES • TO-220 package • placement pins for secure PCB attachment • round hole for component attchment • multiple available cut lengths MODEL thermal resistance1 length (mm) power dissipation1 @ 75°C ΔT, nat conv (°C/W) @ 1 W, nat conv (°C/W) @ 1 W, 200 LFM (°C/W) @ 1 W, 400 LFM (°C/W) @ 75°C ΔT, nat conv (W) HSE-B20254-056H 25.4 13.64 17.13 8.36 6.41 5.50 HSE-B20381-056H 38.1 11.19 15.00 3.53 2.56 6.70 Note: 1. See performance curves for full thermal resistance details. 2. Custom cut to length options available. Thermal data not available on custom lengths. PERFORMANCE CURVES HSE-B20254-056H 100 Without Airflow Heatsink Temperature Rise Above Ambient (ΔT = Ths - Ta) (°C) 90 200 LFM 400 LFM 0 0 0 0 1 17.13 8.36 6.41 2 32.20 17.46 11.75 3 45.00 24.87 17.28 4 58.12 32.88 23.43 5 69.84 40.99 29.16 6 80.93 48.89 34.64 10 7 91.01 56.79 40.37 0 8 99.56 65.43 46.09 110.81 72.66 52.01 118.44 82.03 57.73 Mounting Surface Temperature Rise Above Ambient (°C) Natural Conv. 9 400 LFM 80 Power (W) 10 200 LFM 70 60 50 40 30 20 0 1 Ths: “hot spot” temperature measured on the heatsink Ta: ambient temperature cuidevices.com 2 3 4 5 6 Dissipated Power (W) 7 8 9 10 Additional Resources: Product Page CUI DEVICES | MODEL: HSE-BX-056H | DESCRIPTION: HEAT SINK date 08/05/2022 | page 2 of 4 PERFORMANCE CURVES (CONTINUED) HSE-B20381-056H Power (W) Natural Conv. 200 LFM 400 LFM 0 0 0 0 1 15.00 3.53 2.56 2 27.32 7.15 5.23 3 38.89 10.82 7.90 4 49.63 14.38 10.72 5 59.72 17.90 13.32 6 69.31 21.80 16.03 7 77.53 25.42 18.80 8 87.53 28.89 21.65 9 95.75 32.68 24.48 10 104.38 36.30 27.29 100 Without Airflow 90 Mounting Surface Temperature Rise Above Ambient (°C) Heatsink Temperature Rise Above Ambient (ΔT = Ths - Ta) (°C) 200 LFM 400 LFM 80 70 60 50 40 30 20 10 0 0 1 Ths: “hot spot” temperature measured on the heatsink Ta: ambient temperature cuidevices.com 2 3 4 5 6 Dissipated Power (W) 7 8 9 10 Additional Resources: Product Page CUI DEVICES | MODEL: HSE-BX-056H | DESCRIPTION: HEAT SINK date 08/05/2022 | page 3 of 4 MECHANICAL DRAWING units: mm tolerance: ±0.5 mm MATERIAL AL 6063-T5 FINISH black anodized PIN MATERIAL steel PIN PLATING tin * Note: MODEL NO. LENGTH, L (mm) HSE-B20254-056H* 25.4 11.33 HSE-B20381-056H 38.1 16.67 * Mounting hole not present on 25.4 mm length model. cuidevices.com WEIGHT (g) Additional Resources: Product Page CUI DEVICES | MODEL: HSE-BX-056H | DESCRIPTION: HEAT SINK date 08/05/2022 | page 4 of 4 REVISION HISTORY rev. description date 1.0 initial release 05/05/2017 1.01 updated datasheet 09/07/2017 1.02 brand update 02/11/2020 logo, datasheet style update 08/05/2022 1.03 The revision history provided is for informational purposes only and is believed to be accurate. CUI Devices offers a one (1) year limited warranty. Complete warranty information is listed on our website. CUI Devices reserves the right to make changes to the product at any time without notice. Information provided by CUI Devices is believed to be accurate and reliable. However, no responsibility is assumed by CUI Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI Devices products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. cuidevices.com