HSS-B20-0508H-01R

Additional Resources:    Product Page 

**date** 08/05/2022 **page** 1 of 3 

## **SERIES:** HSS-B20-0508H | **DESCRIPTION:** HEAT SINK 

## **FEATURES** 

- TO-220 package 

- round or slot hole attachment options 

- three tabs for stable PCB placement 

- black anodized finish 

|ons||||||||
|---|---|---|---|---|---|---|---|
|**MODEL**|**mounting hole**|**mounting hole**||**thermal resistance**|**thermal resistance1**||**power**<br>**dissipation1**|
||**type**|**size**|**@ 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**|
|||(mm)||(°C/W)|(°C/W)|(°C/W)|(W)|
|HSS-B20-0508H-01R|round|Ø3.81|15.83|20.74|5.87|4.22|4.74|
|HSS-B20-0508H-01S|slot|3.9 x 9.52|15.83|20.74|5.87|4.22|4.74|



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

## **PERFORMANCE CURVES** 

||Heatsink Temperature Rise Above<br>Ambient (ΔT = Ths - Ta) (°C)|Heatsink Temperature Rise Above<br>Ambient (ΔT = Ths - Ta) (°C)|Heatsink Temperature Rise Above<br>Ambient (ΔT = Ths - Ta) (°C)|
|---|---|---|---|
|Power<br>(W)|Natural<br>Conv.|200 LFM|400 LFM|
|0|0|0|0|
|1|20.74|5.87|4.22|
|2|37.04|11.20|8.21|
|3|51.71|16.65|12.28|
|4|65.89|22.18|16.35|
|5|78.28|27.93|20.51|



Ths: “hot spot” temperature measured on the heatsink Ta: ambient temperature 

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**----- Start of picture text -----**<br>
100<br>90 S Without Airflow SO LL<br>200 LFM<br>80<br>400 LFM<br>S e ee<br>70<br>a ee ee<br>60 eeae<br>50 Se<br>40 a<br>30 Se<br>20<br>a ce<br>10 Te aS Sa<br>0 a eee<br>0 1 2 3 4 5<br>Heat Dissipated (W)<br>Rise Above  Ambient (°C)<br>Mounting Surface Temperature<br>**----- End of picture text -----**<br>


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Additional Resources:    Product Page 

**CUI DEVICES** | **SERIES:** HSS-B20-0508H | **DESCRIPTION:** HEAT SINK 

**date** 08/05/2022 | **page** 2 of 3 

## **MECHANICAL DRAWING** 

units: mm tolerance: ±0.5 mm 

## **HSS-B20-0508H-01R** 

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|MATERIAL|AL1050|
|---|---|
|FINISH|black anodized|
|THICKNESS|1.2 mm|
|WEIGHT|HSS-B20-0508H-01R: 4.3 g<br>HSS-B20-0508H-01S: 4.3 g|



## **HSS-B20-0508H-01S** 

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**==> picture [96 x 35] intentionally omitted <==**

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Additional Resources:    Product Page 

**CUI DEVICES** | **SERIES:** HSS-B20-0508H | **DESCRIPTION:** HEAT SINK 

**date** 08/05/2022 | **page** 3 of 3 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|03/29/2017|
|1.01|brand update|02/12/2020|
|1.02|logo, datasheet style update|08/05/2022|



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. 

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