Board Level

Heat Sinks

All other products, please contact factory for price, delivery, and minimums.

Normally stocked

40

BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS

250 SERIES

High-Performance Slim Profile Heat Sinks With Integral Clips

Multiwatt

Height Above

Footprint

Thermal Performance at Typical Load

Standard

PC Board

Dimensions

Mounting

Solderable

Mounting

Natural

Forced

P/N

in. (mm)

in. (mm)

Configuration

Tab Options

Style

Convection

Convection

250-122AB

1.220 (31.0)

1.000 (25.4) x .500 (12.7)

Vert./Horiz.

No Tab

Clip

50°C @ 4W

3.7°C/W @ 400 LFM

250-122AB-09

1.220 (31.0)

1.000 (25.4) x .500 (12.7)

Vertical

09

Clip

50°C @ 4W

3.7°C/W @ 400 LFM

250-122AB-25

1.380 (35.1)

1.000 (25.4) x .500 (12.7)

Vertical

25

Clip

50°C @ 4W

3.7°C/W @ 400 LFM

Material: Aluminum, Black Anodized

Dimensions: in. (mm)

MECHANICAL DIMENSIONS

NATURAL AND FORCED

CONVECTION CHARACTERISTICS

250-122AB

250-122AB-09

250-122AB-25

250 SERIES

237 AND 252 SERIES

High-Performance, High-Power Vertical Mount Heat Sinks

TO-220

Height Above

Footprint

Thermal Performance at Typical Load

Standard

PC Board

Dimensions

Mounting

Solderable

Mounting

Natural

Forced

P/N

in. (mm)

in. (mm)

Configuration

Tab Options

Style

Convection

Convection

237-167AB2

1.675 (42.5)

1.000 (25-4) x 1.000 (25.4)

Vertical

2, Twisted

Clip/Mtg Slot

46° C @ 4W

4.5° C/W @ 200 LFM

237-167AB3

1.675 (42.5)

1.000 (25.4) x 1.000 (25.4)

Vertical

3, Twisted

Clip/Mtg Slot

46° C @ 4W

4.5° C/W @ 200 LFM

237-167AB2-24

1.675 (42.5)

1.000 (25.4) x 1.000 (25.4)

Vertical

2, Solderable

Clip/Mtg Slot

46° C @ 4W

4.5° C/W @ 200 LFM

252-167AB2

1.675 (42.5)

1.000 (25.4) x 1.000 (25.4)

Vertical

2, Twisted

Clip/Mtg Slot

40° C @ 4W

4.5° C/W @ 200 LFM

252-167AB3

1.675 (42.5)

1.000 (25.4) x 1.000 (25.4)

Vertical

3, Twisted

Clip/Mtg Slot

40° C @ 4W

4.5° C/W @ 200 LFM

252-167AB2-24

1.675 (42.5)

1.000 (25.4) x 1.000 (25.4)

Vertical

2, Solderable

Clip/Mtg Slot

40° C @ 4W

4.5° C/W @ 200 LFM

Order SpeedClips™ 285SC or 330SC separately for rapid component installation, lowering manufacturing costs. Material: Aluminum, Black Anodized

MECHANICAL DIMENSIONS

NATURAL AND FORCED

CONVECTION CHARACTERISTICS

227-167

237-167AB3

252-167AB3

237-167AB3

252-167

237-167AB2

252-167AB2

237-167AB2-24

252-167AB2-24

237 AND 252 SERIES

237 AND 252 SERIES

Dimensions: in. (mm)

252-167AB3

291 SERIES

Labor-Saving Clip-on Heat Sinks

TO-220

Vertical

Height Above

Mounting Footprint

Thermal Performance at Typical Load

Standard

PC Board

Dimensions

Mounting

Natural

Forced

Weight

P/N

in. (mm)

in. (mm)

Style

Convection

Convection

lbs. (grams)

291-C236AB

0.860 (21.)9

1.100 (27.0) x 0.360 (9.1)

TO-220 (Clip)

80° C @ 2W

24°C/W @ 600 LFM

0.0026 (1.18)

291-H36AB

0.860 (21.9)

1.100 (27.0) x 0.360 (9.1)

TO-220 (Mtg. Hole)

68° C @ 2W

16°C/W @ 600 LFM

0.0026 (1.18))

Material: Aluminum, Black Anodized

Designed for mounting horizontally or vertically on a circuit board, 291 Series heat sinks

employ a unique clip for attachment of TO-220 case styles.

One type is available with a locking clip and one with a 0.140 in. (3.6) diameter mounting

hole only.

MECHANICAL DIMENSIONS

NATURAL AND FORCED

CONVECTION CHARACTERISTICS

291 SERIES

Dimensions: in. (mm)

291-C2

291-H