W Series Heatsinks Datasheet

For TO-220, TO-247, and TO-264 devices

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.

Features

Values beginning at 1 miliohm
Non Inductive Design
Four terminal Kelvin connection

Series Specifications

For Package Type:

TO-220

Ohmite Resistor Series:

TBH25, TCH35

Surface Area(in2):

6.5

Weight:

0.35 oz/10g

Thermal Resistance*:

Rs-a=12°C/W

For Package Type:

TO-220

Ohmite Resistor Series:

TBH25, TCH35

Surface Area(in2):

6.5

Weight:

0.35 oz/10g

Thermal Resistance*:

Rs-a=13°C/W

For Package Type:

TO-247

Ohmite Resistor Series:

TEH70, TEH100

Surface Area(in2):

8.4

Weight:

0.42 oz/12g

Thermal Resistance*:

Rs-a=11°C/W

For Package Type:

TO-247

Ohmite Resistor Series:

TEH70, TEH100

Surface Area(in2):

8.4

Weight:

0.42 oz/12g

Thermal Resistance*:

Rs-a=12°C/W

For Package Type:

TO-264

Ohmite Resistor Series:

TFH85

Surface Area(in2):

8.4

Weight:

0.42 oz/12g

Thermal Resistance*:

Rs-a=11°C/W

For Package Type:

TO-264

Ohmite Resistor Series:

TFH85

Surface Area(in2):

8.4

Weight:

0.42 oz/12g

Thermal Resistance*:

Rs-a=12°C/W

For Package Type:

TO-220

Ohmite Resistor Series:

TBH25, TCH35,

Surface Area(in2):

15.1

Weight:

0.79 oz/22g

Thermal Resistance*:

Rs-a=7°C/W

For Package Type:

& TO-247

Ohmite Resistor Series:

TEH70, TEH100

Surface Area(in2):

15.1

Weight:

0.79 oz/22g

Thermal Resistance*:

Rs-a=8°C/W

*Natural convection at 10W heat dissipation †Discontinued

Characteristics

Aluminum alloy 6063-T5 or equivalent.

Music wire, per ASTM A228

Solderable 100% tin over copper strike

for improvement, use thermal joint com-pound or 0.005 Grafoil (TGon 800 by Laird)

Sil-Pad 900S by Bergquist or equivalent

Vertical thru-hole mount

13.2 lbf.

Heat Dissipation

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

DT2-101E (discontinued)

Dimensions

(in./mm ±0.3mm)

Land pattern

Ordering Information

Standard Part Numbers

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

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W Series Heatsinks Datasheet

For TO-220, TO-247, and TO-264 devices

Features

Series Specifications

Characteristics

Heat Dissipation

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

DT2-101E (discontinued)

Dimensions

Land pattern

Ordering Information

Standard Part Numbers

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Contact Our Team of Experts Today

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