# HEAT SINK STAMPING  36.83 X 44.5 X 9.4MM

![Product image](https://novapart.co/image/farnell:4888523/)

**URL**: https://novapart.co/products/HSS-B20-NP-04/heat-sink-stamping-3683-x-445-94mm
**SKU**: HSS-B20-NP-04
**Manufacturer**: SAME SKY
**Category**: Cooling & Thermal Management || Heat Sinks || Natural Convection Heat Sinks
**Price**: €1.1000
**Stock**: 10+
**Lead Time**: 78 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4888523/)

CUI Devices is now Same Sky! Learn More 

**date** 09/12/2024 **page** 1 of 3 

Additional Resources:   Product Page    |    3D Model 

## **MODEL:** HSS-B20-NP-04 | **DESCRIPTION:** HEAT SINK 

## **FEATURES** 

- TO-220 package 

- round hole for component attachment 

- two hole options for longer component pins 

- black anodized finish 

|**MODEL**||**thermal resistance**|**thermal resistance1**||**power**<br>**dissipation1**|
|---|---|---|---|---|---|
||**@ 75**°**C**Δ**T, nat**|**@ 1 W,**|**@ 1 W,**|**@ 1 W,**|**@ 75°C**Δ**T, nat**|
||**conv**(°C/W)|**nat conv**|**200 LFM**|**400 LFM**|**conv**|
|||(°C/W)|(°C/W)|(°C/W)|(W)|
|HSS-B20-NP-04|11.54|15.27|3.76|2.74|6.50|



## **MODEL** 

Note: 1.  See performance curves for full thermal resistance details. 

## **PERFORMANCE CURVES** 

|Heatsink Temperature Rise Above<br>Ambient (ΔT = Ths - Ta) (°C)<br>Power<br>(W)<br>Natural<br>Conv.<br>200 LFM<br>400 LFM<br>0<br>0<br>0<br>0<br>1<br>15.27<br>3.76<br>2.74<br>2<br>27.05<br>7.51<br>5.43<br>3<br>38.74<br>11.26<br>8.23<br>4<br>48.62<br>15.04<br>11.17<br>5<br>59.41<br>18.81<br>13.89<br>6<br>69.24<br>22.56<br>16.83<br>7<br>79.43<br>26.28<br>19.71<br>8<br>88.27<br>30.18<br>22.48<br>9<br>95.85<br>33.95<br>25.41<br>10<br>104.56<br>37.87<br>28.29<br>~~of~~<br>~~rE ~~<br>~~es~~<br>~~a~~<br>~~>~~<br>~~a~~<br>~~ee ee~~<br>~~ee~~<br>~~a~~|Mounting Surface Temperature<br>|Rise Above  Ambient (°C)<br>|0<br>10<br>20<br>30<br>40<br>50<br>60<br>70<br>80<br>90<br>100<br>|0<br>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<br>Without Airflow<br>200 LFM<br>400 LFM<br>~~L~~OL<br> ~~e~~et<br>TCT<br>y<br>eet TET<br>etee<br>PTTTTETT RET EEEE<br>SEZ40n0080"2<br>2682 cae<br>Ateer<br>|tt<br>Atri LilltLil tilt<br>| ||0<br>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<br>Without Airflow<br>200 LFM<br>400 LFM<br>~~L~~OL<br> ~~e~~et<br>TCT<br>y<br>eet TET<br>etee<br>PTTTTETT RET EEEE<br>SEZ40n0080"2<br>2682 cae<br>Ateer<br>|tt<br>Atri LilltLil tilt<br>| ||0<br>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<br>Without Airflow<br>200 LFM<br>400 LFM<br>~~L~~OL<br> ~~e~~et<br>TCT<br>y<br>eet TET<br>etee<br>PTTTTETT RET EEEE<br>SEZ40n0080"2<br>2682 cae<br>Ateer<br>|tt<br>Atri LilltLil tilt<br>| ||
|---|---|---|---|---|---|---|
|Ths: “hot spot” temperature measured on the heatsink||||Dissipated Power (W)|||
|Ta: ambient temperature|||||||



**sameskydevices.com** 

Additional Resources:   Product Page    |    3D Model 

**SAME SKY** | **MODEL:** HSS-B20-NP-04 | **DESCRIPTION:** HEAT SINK 

**date** 09/12/2024 | **page** 2 of 3 

## **MECHANICAL DRAWING** 

units: mm tolerance: ±0.5 mm 

|MATERIAL|AL1050|
|---|---|
|FINISH|black anodized|
|THICKNESS|1.0 mm|
|WEIGHT|5.7 g|



**==> picture [81 x 42] intentionally omitted <==**

**==> picture [383 x 238] intentionally omitted <==**

**sameskydevices.com** 

Additional Resources:   Product Page    |    3D Model 

**SAME SKY** | **MODEL:** HSS-B20-NP-04 | **DESCRIPTION:** HEAT SINK 

**date** 09/12/2024 | **page** 3 of 3 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|04/03/2017|
|1.01|brand update|02/13/2020|
|1.02|logo, datasheet style update|08/05/2022|
|1.03|CUI Devices rebranded to Same Sky|09/12/2024|



The revision history provided is for informational purposes only and is believed to be accurate. 

Same Sky offers a one (1) year limited warranty.  Complete warranty information is listed on our website. 

Same Sky reserves the right to make changes to the product at any time without notice.  Information provided by Same Sky is believed to be accurate and reliable.  However, no responsibility is assumed by Same Sky for its use, nor for any infringements of patents or other rights of third parties which may result from its use. 

Same Sky 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. 

**sameskydevices.com** 



## Links

- [View this product on Novapart](https://novapart.co/products/HSS-B20-NP-04/heat-sink-stamping-3683-x-445-94mm)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/same-sky/hss-b20-np-04/heat-sink-stamping-36-83-x-44/dp/4888523)
---

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