# Heat Sink, 9 °C/W, TO-220, 35 mm, 50.8 mm, 12.7 mm

![Product image](https://novapart.co/image/farnell:4037118/)

**URL**: https://novapart.co/products/EV-T220-51E/heat-sink-9-c-w-to-220-35-mm-508-127
**SKU**: EV-T220-51E
**Manufacturer**: OHMITE
**Category**: Cooling & Thermal Management || Heat Sinks || Natural Convection Heat Sinks
**Price**: €1.6900
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (23-Jan-2024) |
| Product Range | E Series |
| Thermal Resistance | 9°C/W |
| External Width - Metric | 35mm |
| External Height - Metric | 50.8mm |
| External Length - Metric | 12.7mm |
| External Width - Imperial | 1.38" |
| External Diameter - Metric | - |
| External Height - Imperial | 2" |
| External Length - Imperial | 0.5" |
| External Diameter - Imperial | - |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4037118/)

## **E Series Heatsinks** 

## **For TO-220 devices** 

## **F E a t u r E S** 

## ~~a~~ «—avy\ynynweéwn>nnng 

• Vertical through-hole PCB mounting • 0.142 in. diameter mounting holes 

|~~**S E r i E S  S P E c i F i c at i O N S**~~<br>~~So~~|~~**S E r i E S  S P E c i F i c at i O N S**~~<br>~~So~~|~~**S E r i E S  S P E c i F i c at i O N S**~~<br>~~So~~|~~**S E r i E S  S P E c i F i c at i O N S**~~<br>~~So~~|~~**S E r i E S  S P E c i F i c at i O N S**~~<br>~~So~~|~~**S E r i E S  S P E c i F i c at i O N S**~~<br>~~So~~|
|---|---|---|---|---|---|
||**For**|**Ohmite**|**Surface**||**Thermal**|
|**Heatsink**|**Package**|**Resistor**|**Area**||**Resistance***|
|**Part Number**|**Type **|**Series**|**(in2)**|**Weight**|**(°C/W)**|
|EV-T220-38E<br>EA-T220-38E|TO-220|TBH25, TCH35|11.5|0.63 oz/18g|11.4<br>9.5|
|EV-T220-51E<br>EA-T220-51E|TO-220|TBH25, TCH35|15.2|0.85 oz/24g|9.0<br>7.5|
|EV-T220-64E<br>EA-T220-64E|TO-220|TBH25, TCH35|18.8|1.06 oz/30g|7.4<br>6.2|



*Natural convection at 10W dissipation 

## ~~Sd~~ ~~**c H a r a c t E r i S t i c S**~~ 

**Heat Dissipation** 

**==> picture [427 x 172] intentionally omitted <==**

**----- Start of picture text -----**<br>
Heat sink Aluminum 6063-T5 or equiv-<br>alent with either black anod-<br>Air Velocity (ft./min.)<br>ized or degreased finish 0 200 400 600 800 1000<br>100 10<br>Solder feet  Tin plated brass -E38<br>Interface  for improvement, use thermal  80 TXP [TTT] WTTT -E38 ye 8<br>thermal  joint compound or 0.005  -E51 -E51<br>T R E ar<br>a resistance Grafoil (TGon 800 by Laird) 60 P N R ee 6<br>Interface  Sil-Pad 900S by Bergquist or  -E64<br>electrical  equivalent New -E64<br>isolation 40 pONSSol 4<br>oo eS<br>20 e S 2<br>7 o ie<br>0 0<br>0 Vel 2 a 4 6 8 10<br>Heat Dissipated (watts)<br>C) °<br>C/watts)Surface to Ambient ( °<br>Thermal Resistance from Mounting<br> Mounting Surf. Temp. Rise above Ambient (<br>**----- End of picture text -----**<br>


(continued) 

**172** 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 

## **E Series Heatsinks** 

## **For TO-220 devices** 

## ~~**d i m E N S i O N S**~~ 

(in./mm) 

**==> picture [495 x 200] intentionally omitted <==**

**----- Start of picture text -----**<br>
0.138"<br>(3.50mm +.20/-.10) ø0.098"<br>(2.50mm)<br>1.00"<br>   0.630"<br>0.437"  (25.40mm) (16.00mm ±.20)<br>(11.10mm ±.30) 0.055"<br>1.378"<br>(1.40mm)<br>0.689"  (35.00mm ±.20)<br>(17.50mm ±.15)<br>Height<br>Part Number  (in. ±.010 /  mm ±.25) (3.60mm +.10/-0) ø0.142"  0.196"  (12.70mm) 0.50"<br> EV-T220-38E  1.5 / 38.10  (5.0mm ±.20)<br> EA-T220-38E<br>0.720"<br> EV-T220-51E  2.0 / 50.80  NOTICE: Dimensional<br>(18.30mm ±.20)<br> EA-T220-51E<br>1.00"  change. Dimensions shown<br> EV-T220-64E  2.5 / 63.50  (25.40mm ±.20)<br> EA-T220-64E are for products produced<br>Height H<br>after July 2013<br>**----- End of picture text -----**<br>


## **Land Pattern** 

**==> picture [156 x 89] intentionally omitted <==**

**----- Start of picture text -----**<br>
0.500"<br>(12.70mm)<br>0.031"<br>(0.79mm)<br>ø 0.105"<br>(2.67mm)<br>Device<br>Center<br>Line<br>**----- End of picture text -----**<br>


## ~~**O r d E r i N g  i N F O r m at i O N**~~ 

**Package type Series** to be heatsinked **RoHS Compliant E V - T 2 2 0 - 5 1 E Finish Height** A = black anodized (mm) V = degreased 

## **E V - T 2 2 0 - 5 1 E** 

## **Standard part numbers** 

|**Part Number**|**Description**|**Packaging**|
|---|---|---|
|EV-T220-38E|Heat sink for TO-220, no finish (degreased)|Bulk|
|EA-T220-38E|Heat sink for TO-220, black anodized|Bulk|
|EV-T220-51E|Heat sink for TO-220, no finish (degreased)|Bulk|
|EA-T220-51E|Heat sink for TO-220, black anodized|Bulk|
|EV-T220-64E|Heat sink for TO-220, no finish (degreased)|Bulk|
|EA-T220-64E|Heat sink for TO-220, black anodized|Bulk|



**==> picture [146 x 41] intentionally omitted <==**

1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 

**173** 



## Links

- [View this product on Novapart](https://novapart.co/products/EV-T220-51E/heat-sink-9-c-w-to-220-35-mm-508-127)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/ohmite/ev-t220-51e/heat-sink-aluminium-12-7x35x50/dp/4037118)
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