# Heat Sink, Square, PCB, 12 °C/W, TO-247, 23.4 mm, 32 mm, 16 mm

![Product image](https://novapart.co/image/farnell:2097663/)

**URL**: https://novapart.co/products/WV-T247-101E/heat-sink-square-pcb-12-c-w-to-247-234-mm-32-16
**SKU**: WV-T247-101E
**Manufacturer**: OHMITE
**Category**: Cooling & Thermal Management || Heat Sinks || Natural Convection Heat Sinks
**Price**: €1.6700
**Stock**: 10+

## Description

Thermal Resistance:12°C/W; Packages Cooled:TO-247; External Width - Metric:23.4mm; External Height - Metric:32mm; External Length - Metric:16mm; External Diameter - Metric:-; Heat Sink Materi

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (27-Jun-2024) |
| Product Range | W |
| Packages Cooled | TO-247 |
| Heat Sink Material | Aluminium |
| Thermal Resistance | 12°C/W |
| External Width - Metric | 23.4mm |
| External Height - Metric | 32mm |
| External Length - Metric | 16mm |
| External Width - Imperial | 0.92" |
| External Diameter - Metric | - |
| External Height - Imperial | 1.26" |
| External Length - Imperial | 0.63" |
| External Diameter - Imperial | - |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2097663/)

## **W Series Heatsinks For TO-220, TO-247, and TO-264 devices** 

**==> picture [214 x 114] intentionally omitted <==**

**----- Start of picture text -----**<br>
a)<br>| | | oo<br>T247-101E<br> T220-101E T264-101E DT2-101E<br>**----- End of picture text -----**<br>


The unique design (patent pending) of the  W Series heat sinks combines a tin plated, solderable, integral spring clip with an extruded aluminum heat sink body for an all-in-one solution to through-hole mounting of TO-220, TO-247, and TO-264 packages. These self-aligning heat sinks feature solderable feet and an integrated clip with 13.2 (lbf) of force on the center of the device to enhance thermal performance. 

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

- Reduced Assembly Cost: spring clip and auto-align feature makes fasteners and fixtures obsolete, along with stray metal filings from tapped holes 

- Maximum Repeatability: clamping force of the spring clip is not degraded by repeated loading and unloading 

- Maximum Heat Transfer per Unit Space: maximum surface area per unit volume and consistent mounting force reduces thermal resistance 

- Maximum Resistance to Shock and Vibration: light weight, resilient spring clip locks the component in place and is highly resistant to shock and vibration 

- Maximum Reliability: helps prevent short circuits by eliminating metal particles from thread tapping 

• RoHS Compliant 

|~~**S e r i e S  S P e c i F i c at i O N S**~~<br>~~a~~|~~**S e r i e S  S P e c i F i c at i O N S**~~<br>~~a~~|~~**S e r i e S  S P e c i F i c at i O N S**~~<br>~~a~~|~~**S e r i e S  S P e c i F i c at i O N S**~~<br>~~a~~|~~**S e r i e S  S P e c i F i c at i O N S**~~<br>~~a~~|~~**S e r i e S  S P e c i F i c at i O N S**~~<br>~~a~~|
|---|---|---|---|---|---|
|**Heatsink**<br>**For Package**||**Ohmite Resistor**|**Surface Area**|**Surface Area**|**Thermal**|
|**Part Number**|**Type **|**Series**|**(in2)**|**Weight**|**Resistance***|
|WA-T220-101E TO-220<br>WV-T220-101E|WA-T220-101E TO-220<br>WV-T220-101E|TBH25, TCH35|6.5|0.35 oz/10g|Rs-a=12°C/W<br>Rs-a=13°C/W|
|WA-T247-101E TO-247|WA-T247-101E TO-247|TEH70, TEH100|8.4|0.42 oz/12g|Rs-a=11°C/W|
|WV-T247-101E|WV-T247-101E||||Rs-a=12°C/W|
|WA-T264-101E TO-264<br>WV-T264-101E|WA-T264-101E TO-264<br>WV-T264-101E|TFH85|8.4|0.42 oz/12g|Rs-a=11°C/W<br>Rs-a=12°C/W|
|WA-DT2-101E<br>WV-DT2-101E & TO-247|TO-220<br>WV-DT2-101E & TO-247|TBH25, TCH35,<br>TEH70,TEH100|15.1|0.79 oz/22g|Rs-a=7°C/W<br>Rs-a=8°C/W|



*Natural convection at 10W heat dissipation 

|~~**c H a r a c t e r i S t i c S**~~<br>~~eee~~|~~**c H a r a c t e r i S t i c S**~~<br>~~eee~~|~~**c H a r a c t e r i S t i c S**~~<br>~~eee~~|~~**c H a r a c t e r i S t i c S**~~<br>~~eee~~|
|---|---|---|---|
|**Heat Sink**|Aluminum alloy 6063-T5 or equivalent.|||
|**Spring Clip**|Music wire, per ASTM A228|||
|**Pin**|Solderable 100% tin over copper strike|||
|**Interface thermal**|for improvement, use thermal joint com-|||
|**resistance**|pound or 0.005 Grafoil (TGon 800 by|||
||Laird)|||
|**Interface electrical**|Sil-Pad 900S by Bergquist or equivalent|||
|**isolation**||||
|**Mounting**|Vertical thru-hole mount|||
|**Clip Force**|13.2 lbf.|||
|||||
|||~~Patent~~||
|||Pending|(continued)|



(continued) 

**180** 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 

## **W Series Heatsinks For TO-220, TO-247, and TO-264 devices** 

## ~~**c H a r a c t e r i S t i c S**~~ 

## **Heat Dissipation** 

## **T220-101E, T247-101E and T264-101E** 

**==> picture [485 x 442] intentionally omitted <==**

**----- Start of picture text -----**<br>
DT2-101E<br>Air Velocity (ft./min.) Air Velocity (ft./min.)<br>200 400 600 800 1000 100 200 400 600 800 1000<br>250 14 12<br>140<br>Air Flow T220-101E 12 DT2-101E 10<br>200 Side to Side T247-101E, 120<br>T264-101E Air Flow<br>10 Side to Side Free<br>100 Air 8<br>150<br>8 80<br>6<br>100 6 60<br>Air Flow 4<br>FreeAir 4 40 along Fins<br>50 along FinsAir Flow 2 20 2<br>0 0 0 0<br>0 2 4 8 12 16 20 0 2 4 8 12 16 20<br>Heat Dissipated (watts) Heat Dissipated (watts)<br>d i m e N S i O N S<br>Land pattern<br>0.63"<br>(16.0mm)<br>0.08"<br>(2.0mm)<br>T220 0.72"  (18.3mm) 0.63"<br>T247, T264 0.91"  (23.1mm) (16.0mm) T220 0.72" 0.59" 0.500" ø 0.050"<br>(18.3mm) (15.0mm) (12.7mm) (1.3mm)<br>T247 0.92" 0.785" 0.711" CL<br>(23.4mm) (19.4mm) (18.1mm)<br>T264 (23.4mm) 0.92" (20.2mm) 0.80" (18.1mm) 0.711" 0.06" (1.5mm)<br>1.26" 1.20"<br>(32.0mm±0.3) (30.5mm ±0.3) ø 0.080" (2.0mm) 0.27" 0.18"<br>(6.9mm) (4.6mm)<br>ø 0.080" 1.71"  (43.4mm)<br>0.14" REF* (2.0mm) 0.500" 0.711"<br>(3.6mm) (12.7mm) (18.1mm)<br>T247, T264T220 0.50" 0.71"  (12.7mm)(18.0mm) Pin diameter0.06"  (1.5mm) *Meets IPC-610  DT2 CL 0.08" (2.0mm)<br>Through-hole  0.18" 0.63"<br>Soldering  (4.6mm) (16.0mm)<br>Requirement 0.28"<br>(16mm)<br>ø 0.050" typ. 0.89"  (22.6mm)<br>(1.3mm) 0.59" 0.785"<br>(15mm) (19.4mm)<br>Mounting Surface Temp. RiseC)above Ambient ( ° C/watts)Surface to Ambient ( ° Mounting Surface Temp. RiseC)above Ambient ( ϒ C/watts)Surface to Ambient ( ϒ<br>Thermal Resistance from Mounting Thermal Resistance from Mounting<br>**----- End of picture text -----**<br>


(in./ _mm ±0.3mm)_ 

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

## **W A - T 2 2 0 - 1 0 1 E** 

**Series Coating Device Package RoHS** A- Black Anodized **size modifier Compliant** V- degreased N- Alodine 1500 Clear 

## **Standard part numbers** 

WA-T220-101E WV-T220-101E WA-T247-101E WV-T247-101E WA-T264-101E WV-T264-101E WA-DT2-101E WV-DT2-101E 

**==> 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 

**181** 



## Links

- [View this product on Novapart](https://novapart.co/products/WV-T247-101E/heat-sink-square-pcb-12-c-w-to-247-234-mm-32-16)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/ohmite/wv-t247-101e/heatsink-to-247-no-finish/dp/2097663)
---

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