Manufactured by SAME SKY, this high-performance thermal management component is designed for efficient heat dissipation in electronic applications. The heat sink features a TO-218 package with pin extrusion, ensuring secure attachment to PCB components.
Designed for TO-218 package with placement pins for secure PCB mounting
Includes a round hole for additional component attachment
Available in multiple cut lengths for versatile applications
Constructed from durable AL 6063-T5 material with a black anodized finish
Steel pins with tin plating for reliable electrical and thermal contact
Technical Specifications
Model Number
Length (mm)
Weight (g)
HSE-B18254-0396H
25.4
30
HSE-B18318-0396H
31.8
43
HSE-B18381-0396H
38.1
44
HSE-B18508-0396H
50.8
57
HSE-B18635-0396H
63.5
69
Thermal Performance
The heat sink provides effective thermal resistance for various cooling conditions. Performance curves and detailed thermal resistance data are available in the datasheet. Typical thermal resistance values at 75°C ambient and 1W dissipation are as follows:
Model
Length (mm)
Convective Resistance (°C/W)
With 200 LFM Airflow (°C/W)
With 400 LFM Airflow (°C/W)
HSE-B18254-0396H
25.4
9.15
2.29
2.07
HSE-B18318-0396H
31.8
8.24
2.57
1.80
HSE-B18381-0396H
38.1
6.94
2.29
1.80
HSE-B18508-0396H
50.8
5.86
2.45
1.79
HSE-B18635-0396H
63.5
5.47
2.78
1.55
Performance Curves & Thermal Data
Performance curves illustrate the heatsink's thermal resistance under various airflow conditions. For detailed thermal performance data, refer to the datasheet linked above.
Mechanical Drawing & Dimensions
Units: mm. Material: AL 6063-T5. Finish: Black anodized. Pins: Steel with tin plating. Tolerance: ±0.5 mm.
Model No.
Length (mm)
Weight (g)
HSE-B18254-0396H
25.4
30
HSE-B18318-0396H
31.8
43
HSE-B18381-0396H
38.1
44
HSE-B18508-0396H
50.8
57
HSE-B18635-0396H
63.5
69
For more details, download the datasheet or visit the product page: Product Page.
Note: The datasheet was not processed. Please search the internet for the part number for more details.
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{"id":10024723448125,"title":"HSE-B18254-0396H","handle":"hse-b18254-0396h","description":"\u003ch3\u003eHeat Sink - HSE-B18254-0396H\u003c\/h3\u003e\n\u003cp\u003eManufactured by \u003cstrong\u003eSAME SKY\u003c\/strong\u003e, this high-performance thermal management component is designed for efficient heat dissipation in electronic applications. The heat sink features a TO-218 package with pin extrusion, ensuring secure attachment to PCB components.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HSE-B18254-0396H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e SAME SKY\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e TW (Taiwan)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA (Each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e BLK (Black anodized)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.cuidevices.com\/product\/resource\/masterpdf\/hse-18x.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for TO-218 package with placement pins for secure PCB mounting\u003c\/li\u003e\n\u003cli\u003eIncludes a round hole for additional component attachment\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple cut lengths for versatile applications\u003c\/li\u003e\n\u003cli\u003eConstructed from durable AL 6063-T5 material with a black anodized finish\u003c\/li\u003e\n\u003cli\u003eSteel pins with tin plating for reliable electrical and thermal contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Number\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003eWeight (g)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18254-0396H\u003c\/td\u003e\n\u003ctd\u003e25.4\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18318-0396H\u003c\/td\u003e\n\u003ctd\u003e31.8\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18381-0396H\u003c\/td\u003e\n\u003ctd\u003e38.1\u003c\/td\u003e\n\u003ctd\u003e44\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18508-0396H\u003c\/td\u003e\n\u003ctd\u003e50.8\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18635-0396H\u003c\/td\u003e\n\u003ctd\u003e63.5\u003c\/td\u003e\n\u003ctd\u003e69\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eThermal Performance\u003c\/h3\u003e\n\u003cp\u003eThe heat sink provides effective thermal resistance for various cooling conditions. Performance curves and detailed thermal resistance data are available in the datasheet. Typical thermal resistance values at 75°C ambient and 1W dissipation are as follows:\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003eConvective Resistance (°C\/W)\u003c\/th\u003e\n\u003cth\u003eWith 200 LFM Airflow (°C\/W)\u003c\/th\u003e\n\u003cth\u003eWith 400 LFM Airflow (°C\/W)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18254-0396H\u003c\/td\u003e\n\u003ctd\u003e25.4\u003c\/td\u003e\n\u003ctd\u003e9.15\u003c\/td\u003e\n\u003ctd\u003e2.29\u003c\/td\u003e\n\u003ctd\u003e2.07\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18318-0396H\u003c\/td\u003e\n\u003ctd\u003e31.8\u003c\/td\u003e\n\u003ctd\u003e8.24\u003c\/td\u003e\n\u003ctd\u003e2.57\u003c\/td\u003e\n\u003ctd\u003e1.80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18381-0396H\u003c\/td\u003e\n\u003ctd\u003e38.1\u003c\/td\u003e\n\u003ctd\u003e6.94\u003c\/td\u003e\n\u003ctd\u003e2.29\u003c\/td\u003e\n\u003ctd\u003e1.80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18508-0396H\u003c\/td\u003e\n\u003ctd\u003e50.8\u003c\/td\u003e\n\u003ctd\u003e5.86\u003c\/td\u003e\n\u003ctd\u003e2.45\u003c\/td\u003e\n\u003ctd\u003e1.79\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18635-0396H\u003c\/td\u003e\n\u003ctd\u003e63.5\u003c\/td\u003e\n\u003ctd\u003e5.47\u003c\/td\u003e\n\u003ctd\u003e2.78\u003c\/td\u003e\n\u003ctd\u003e1.55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePerformance Curves \u0026amp; Thermal Data\u003c\/h3\u003e\n\u003cp\u003ePerformance curves illustrate the heatsink's thermal resistance under various airflow conditions. For detailed thermal performance data, refer to the datasheet linked above.\u003c\/p\u003e\n\u003ch3\u003eMechanical Drawing \u0026amp; Dimensions\u003c\/h3\u003e\n\u003cp\u003eUnits: mm. Material: AL 6063-T5. Finish: Black anodized. Pins: Steel with tin plating. Tolerance: ±0.5 mm.\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eModel No.\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003eWeight (g)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18254-0396H\u003c\/td\u003e\n\u003ctd\u003e25.4\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18318-0396H\u003c\/td\u003e\n\u003ctd\u003e31.8\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18381-0396H\u003c\/td\u003e\n\u003ctd\u003e38.1\u003c\/td\u003e\n\u003ctd\u003e44\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18508-0396H\u003c\/td\u003e\n\u003ctd\u003e50.8\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18635-0396H\u003c\/td\u003e\n\u003ctd\u003e63.5\u003c\/td\u003e\n\u003ctd\u003e69\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor more details, download the datasheet or visit the product page: \u003ca href=\"https:\/\/www.sameskydevices.com\/track?actionLabel=Datasheet-ClickThrough-ProductPage\u0026amp;label=HSE-18X.pdf\u0026amp;path=%2fproduct%2fthermal-management%2fheat-sinks%2fboard-level-heat-sinks%2fextruded-heat-sinks%2fhse-b18254-0396h\" target=\"_blank\"\u003eProduct Page\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNote: The datasheet was not processed. Please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-14T10:55:55+05:30","created_at":"2025-08-14T10:55:55+05:30","vendor":"Waldom Electonics","type":"Thermal Management","tags":["Heat","IMPORT_CSV","SAME","Thermal","TO","WLDM"],"price":15106,"price_min":15106,"price_max":15106,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50618890486077,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"HSE-B18254-0396H","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"HSE-B18254-0396H","public_title":null,"options":["Default Title"],"price":15106,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"HSE-B18254-0396H","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/HSE-B18254-0396H_52141631_0a0e5e3b.jpg?v=1755149159"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/HSE-B18254-0396H_52141631_0a0e5e3b.jpg?v=1755149159","options":["Title"],"media":[{"alt":null,"id":45831693959485,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/HSE-B18254-0396H_52141631_0a0e5e3b.jpg?v=1755149159"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/HSE-B18254-0396H_52141631_0a0e5e3b.jpg?v=1755149159","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eHeat Sink - HSE-B18254-0396H\u003c\/h3\u003e\n\u003cp\u003eManufactured by \u003cstrong\u003eSAME SKY\u003c\/strong\u003e, this high-performance thermal management component is designed for efficient heat dissipation in electronic applications. The heat sink features a TO-218 package with pin extrusion, ensuring secure attachment to PCB components.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HSE-B18254-0396H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e SAME SKY\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e TW (Taiwan)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA (Each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e BLK (Black anodized)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.cuidevices.com\/product\/resource\/masterpdf\/hse-18x.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for TO-218 package with placement pins for secure PCB mounting\u003c\/li\u003e\n\u003cli\u003eIncludes a round hole for additional component attachment\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple cut lengths for versatile applications\u003c\/li\u003e\n\u003cli\u003eConstructed from durable AL 6063-T5 material with a black anodized finish\u003c\/li\u003e\n\u003cli\u003eSteel pins with tin plating for reliable electrical and thermal contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Number\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003eWeight (g)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18254-0396H\u003c\/td\u003e\n\u003ctd\u003e25.4\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18318-0396H\u003c\/td\u003e\n\u003ctd\u003e31.8\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18381-0396H\u003c\/td\u003e\n\u003ctd\u003e38.1\u003c\/td\u003e\n\u003ctd\u003e44\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18508-0396H\u003c\/td\u003e\n\u003ctd\u003e50.8\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18635-0396H\u003c\/td\u003e\n\u003ctd\u003e63.5\u003c\/td\u003e\n\u003ctd\u003e69\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eThermal Performance\u003c\/h3\u003e\n\u003cp\u003eThe heat sink provides effective thermal resistance for various cooling conditions. Performance curves and detailed thermal resistance data are available in the datasheet. Typical thermal resistance values at 75°C ambient and 1W dissipation are as follows:\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003eConvective Resistance (°C\/W)\u003c\/th\u003e\n\u003cth\u003eWith 200 LFM Airflow (°C\/W)\u003c\/th\u003e\n\u003cth\u003eWith 400 LFM Airflow (°C\/W)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18254-0396H\u003c\/td\u003e\n\u003ctd\u003e25.4\u003c\/td\u003e\n\u003ctd\u003e9.15\u003c\/td\u003e\n\u003ctd\u003e2.29\u003c\/td\u003e\n\u003ctd\u003e2.07\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18318-0396H\u003c\/td\u003e\n\u003ctd\u003e31.8\u003c\/td\u003e\n\u003ctd\u003e8.24\u003c\/td\u003e\n\u003ctd\u003e2.57\u003c\/td\u003e\n\u003ctd\u003e1.80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18381-0396H\u003c\/td\u003e\n\u003ctd\u003e38.1\u003c\/td\u003e\n\u003ctd\u003e6.94\u003c\/td\u003e\n\u003ctd\u003e2.29\u003c\/td\u003e\n\u003ctd\u003e1.80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18508-0396H\u003c\/td\u003e\n\u003ctd\u003e50.8\u003c\/td\u003e\n\u003ctd\u003e5.86\u003c\/td\u003e\n\u003ctd\u003e2.45\u003c\/td\u003e\n\u003ctd\u003e1.79\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18635-0396H\u003c\/td\u003e\n\u003ctd\u003e63.5\u003c\/td\u003e\n\u003ctd\u003e5.47\u003c\/td\u003e\n\u003ctd\u003e2.78\u003c\/td\u003e\n\u003ctd\u003e1.55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePerformance Curves \u0026amp; Thermal Data\u003c\/h3\u003e\n\u003cp\u003ePerformance curves illustrate the heatsink's thermal resistance under various airflow conditions. For detailed thermal performance data, refer to the datasheet linked above.\u003c\/p\u003e\n\u003ch3\u003eMechanical Drawing \u0026amp; Dimensions\u003c\/h3\u003e\n\u003cp\u003eUnits: mm. Material: AL 6063-T5. Finish: Black anodized. Pins: Steel with tin plating. Tolerance: ±0.5 mm.\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eModel No.\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003eWeight (g)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18254-0396H\u003c\/td\u003e\n\u003ctd\u003e25.4\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18318-0396H\u003c\/td\u003e\n\u003ctd\u003e31.8\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18381-0396H\u003c\/td\u003e\n\u003ctd\u003e38.1\u003c\/td\u003e\n\u003ctd\u003e44\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18508-0396H\u003c\/td\u003e\n\u003ctd\u003e50.8\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSE-B18635-0396H\u003c\/td\u003e\n\u003ctd\u003e63.5\u003c\/td\u003e\n\u003ctd\u003e69\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor more details, download the datasheet or visit the product page: \u003ca href=\"https:\/\/www.sameskydevices.com\/track?actionLabel=Datasheet-ClickThrough-ProductPage\u0026amp;label=HSE-18X.pdf\u0026amp;path=%2fproduct%2fthermal-management%2fheat-sinks%2fboard-level-heat-sinks%2fextruded-heat-sinks%2fhse-b18254-0396h\" target=\"_blank\"\u003eProduct Page\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNote: The datasheet was not processed. Please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e"}
