58

59

wakefield-vette.com

Contact us: (603) 635-2800

Dimensions: in. (mm)

Dimensions: in. (mm)

MECHANICAL DIMENSIONS

NATURAL AND FORCED

CONVECTION CHARACTERISTICS

232-200AB-23

238-200AB

238-200AB-23

232-200AB

238 SERIES

232 AND 238 SERIES

BOARD LEVEL

HEAT SINKS

BOARD LEVEL

HEAT SINKS

232 & 238 SERIES

STAGGERED FIN HEAT SINKS FOR

VERTICAL MOUNTING

Height Above

Footprint

Standard

PC Board

Dimensions

Mounting

Solderable Mounting

Natural

Forced

P/N

in. (mm)

in. (mm) Configuration Tab Options Style Convection Convection

251-62AB

.620 (15.7)

.910 (23.1) x .380 (9.7) Vert./Horiz.

No Tab

Clip

66°C @ 3W

66°C/W @ 400 LFM

251-80AB

.845 (21.5)

.910 (23.1) x .380 (9.7) Vert./Horiz.

No Tab

Clip

64°C @ 3W

66°C/W @ 400 LFM

251-80ABE-19 .875 (22.2)

.910 (23.1) x .380 (9.7)

Vertical

19

Clip

64°C @ 3W

66°C/W @ 400 LFM

Material: Aluminum, Black Anodized

MECHANICAL DIMENSIONS

NATURAL AND FORCED

CONVECTION CHARACTERISTICS

251-62AB

251-80AB

251-80AB-19

251 SERIES

SLIM-PROFILE HEAT SINKS WITH INTEGRAL CLIPS

Height Above

Footprint

Standard

PC Board

Dimensions

Mounting

Solderable

Natural

Force

Weight

P/N

in. (mm)

in. (mm) Configuration Tab Options Convection Convection lbs. (grams)

244-145AB

1.450 (36.8) 1.300 (33.0) x 480 (12.1)

Vert/Horiz,

No Tab

44°C @ 4W

4.4°C/W @ 400 LFM

.0160 (7.25)

244-145ABE-50 1.650 (41.9) 1.300 (33.0) x 480 (12.1)

Vertical

50

44°C @ 4W

4.4°C/W @ 400 LFM

.0170 (7.20)

Material: Aluminum, Black Anodized

244 SERIES

LOW HEIGHT, SLIM PROFILE WAVE-SOLDERABLE

FOLDED FIN HEAT SINKS

Dimensions: in. (mm)

Height Above

Footprint

Standard

PC Board

Dimensions

Mounting

Solderable

Natural

Forced

Weight

P/N

in. (mm)

in. (mm) Configuration Tab Options Convection Convection lbs. (grams)

245-145AB

1.450 (36.8) 1.750 (44.5) x .380 (9.7) Ver.t/Horiz.

No Tab

38°C @ 4W

3.2°C/W @ 400 LFM .0160 (7.25)

245-145ABE-50 1.650 (41.9) 1.750 (44.5) x .380 (9.7)

Vertical

50

38°C @ 4W

3.2°C/W @ 400 LFM .0170 (7.20)

Material: Aluminum, Black Anodized

245 SERIES

LOW HEIGHT, SLIM PROFILE WAVE-SOLDERABLE

FOLDED FIN HEAT SINKS

Dimensions: in. (mm)

Height Above

Footprint

Standard

PC Board

Dimensions

Mounting

Solderable

Mounting

Natural

Forced

P/N

in. (mm) in. (mm) Configuration Tab Options Style Convection Convection

232-200AB

2.000 (50.8) 1.380 (35.1) x .500 (12.7)

Vertical

2, Twisted Clip/Mtg Hole

48°C @ 4W

3.3°C/W @ 400 LFM

232-200ABE-23 2.000 (50.8) 1.380 (35.1) x .500 (12.7)

Vertical

2, Solderable Clip/Mtg Hole

48°C @ 4W

3.3°C/W @ 400 LFM

238-200AB

2.000 (50.8) 1.380 (35.1) x .500 (12.7)

Vertical

2, Twisted

Mtg Slot

48°C @ 4W

3.3°C/W @ 400 LFM

238-200ABE-23 2.000 (50.8) 1.380 (35.1) x .500 (12.7)

Vertical

2, Solderable

Mtg Slot

48°C @ 4W

3.3°C/W @ 400 LFM

Material: Aluminum, Black Anodized

Thermal Performance at Typical Load

Thermal Performance at Typical Load

Thermal Performance at Typical Load

Thermal Performance at Typical Load

BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS

BOARD LEVEL HEAT SINKS FOR TO-220, TO-218 &

MULTIWATT™ COMPONENTS

Multiwatt

15 Lead Multiwatt

TO-220 and TO-202

MECHANICAL DIMENSIONS

MECHANICAL DIMENSIONS

Multiwatt