657-20ABPN Wakefield Thermal Solutions, 657-20ABPN Datasheet - Page 17

• Manufacturer Part Number: 657-20ABPN
• Description: Heat Sink
• Manufacturer: Wakefield Thermal Solutions

Specifications of 657-20ABPN

• Packages Cooled: TO-218 / TO-220 / TO-247
• Thermal Resistance: 32°C/W
• Width: 41.9mm
• Height: 50.8mm
• Heat Sink Material: Aluminum
• Peak Reflow Compatible (260 C): No
• Length: 25.4mm
• Leaded Process Compatible: No
• Product: Heatsinks
• Mounting Style: Through Hole
• Heatsink Material: Aluminum
• Dimensions: 25.4 mm L x 41.9 mm W x 50.8 mm H
• Designed For: TO-220, TO-247, TO-218
• Color: Black
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

All other products, please contact factory for price, delivery, and minimums.
BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS
Board Level
Heat Sinks
MECHANICAL DIMENSIONS
MECHANICAL DIMENSIONS
Dimensions: in. (mm)
Dimensions: in. (mm)
626 AND 627 SERIES
Standard
P/N
626-10ABP
626-15ABP
626-20ABP
626-25ABP
Wave-solderable pins. Material: Aluminum, Black Anodized
657 SERIES
Standard
P/N
657-10ABP
657-15ABP
657-20ABP
657-25ABP
Wave-solderable pins. Material: Aluminum, Black Anodized
Height Above
PC Board “A”
1.000 (25.4)
2.000 (50.8)
1.500 (38.1)
2.500 (63.5)
High-Performance Heat Sinks for Vertical Board Mounting
in. (mm)
627-10ABP
627-15ABP
627-20ABP
627-25ABP
Standard
P/N
High-Efficiency Heat Sinks for Vertical Board Mounting
1.650 (41.9) x 1.000 (25.4)
1.650 (41.9) x 1.000 (25.4)
1.650 (41.9) x 1.000 (25.4)
1.650 (41.9) x 1.000 (25.4)
PC Board “A”
Height Above
2.500 (63-5)
1.000 (25.4)
1.500 (38.1)
2.000 (50.8)
626 AND 627 SERIES
in. (mm)
Maximum
Footprint
in. (mm)
657 SERIES
(EXTRUSION PROFILE 6533)
657 SERIES
46
1.375 (34.9) x .500 (12.7)
1.375 (34.9) x .500 (12.7)
1.375 (34.9) x .500 (12.7)
1.375 (34.9) x .500 (12.7)
Maximum
Footprint
in. (mm)
38°C @ 6W
32°C @ 6W
25°C @ 6W
Convection
41°C @ 6W
Thermal Performance at Typical Load
Natural
CONVECTION CHARACTERISTICS
CONVECTION CHARACTERISTICS
NATURAL AND FORCED
NATURAL AND FORCED
3.7°C/W @ 200 LFM
3.3°C/W @ 200 LFM
2.9°C/W @ 200 LFM
2.7°C/W @ 200 LFM
Convection
Forced
Thermal Performance at Typical Load
76°C @ 6W
65°C @ 6W
55°C @ 6W
48°C @ 6W
Convection
Natural
TO-220, TO-247, TO-218
5.8°C/W @ 200 LFM
5.5°C/W @ 200 LFM
4.7°C/W @ 200 LFM
4.2°C/M @ 200 LFM
Convection
TO-218, TO-220
Normally stocked
Forced
0.0515 (23.36)
0.0760 (34.60)
0.1030 (47.00)
0.1250 (57.00)
lbs (grams)
Weight