WV-T247-101E datasheet(1/1 Pages) OHMITE

Part #	WV-T247-101E

Description	For TO-220 and TO-247 devices

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Manufacturer	OHMITE [Ohmite Mfg. Co.]

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Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

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WV Series Heatsinks

For TO-220 and TO-247 devices

For

Ohmite

Surface

Heatsink

Package Resistor

Area

Thermal

Part Number

Type

Series

(in2)

Weight

Resistance*

WV-T220-101E TO-220

TBH25, TCH35 6.5 0.35 oz/10g Rs-a=10°C/W

WV-T247-101E TO-247

TEH70

8.4 0.42 oz/12g Rs-a=7°C/W

*Natural convection

S PE ci F ic A T i ONS

Heat Sink: Aluminum alloy 6063-

T5 or equivalent. Copper alloy

C110 or equivalent

Spring Clip: Music wire, per

ASTM A228

Foot: Cold-rolled steel, per ASTM

A366, commercial quality or

equivalent

Insulator: (optional) Sil-pad

900-S, K6 800-S, and K10, or

equivalent

Mounting: thru-hole, vertical

Suggested Sil Pad: Sil-Pad 900S

(Manufactured by Bergquist)

Clip Force: 13.2 lbf.

0.63"

(16.0mm)

0.72" (18.3mm)

0.92" (23.4mm)

T220

1.20"

(30.5mm)

T247

1.20-1.26"

(30.5-32.0mm)

0.14"

(3.6mm)

0.50" (12.7mm)

0.71" (18.0mm)

T220

T247

T220

T247

Ohmite Manufacturing has

launched a series of heatsink

solutions for use with our

popular TO-220 and TO-247

power resistors, or similarly

packaged semiconductors.

These self aligning heatsinks

feature solderable feet for

through-hole placement, and

an integrated clip which pro-

vides 13.2 (lbf) of force on the

center of the resistor, enhanc-

ing thermal performance and

reducing parts count and

assembly time.

WV-T220-101E

WV-T247-101E

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WV-T247-101E Datasheet(PDF) 1 Page - Ohmite Mfg. Co.

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