680-125A Wakefield Thermal Solutions, 680-125A Datasheet - Page 17

• Manufacturer Part Number: 680-125A
• Description: HEATSINK POWER TO-3 BLK
• Manufacturer: Wakefield Thermal Solutions
• Series: 680r

Specifications of 680-125A

• Thermal Resistance: 1.5 C / W
• Height: 1.250" (31.7mm)
• Color: Black
• Package Cooled: TO-3
• Attachment Method: Bolt On
• Outline: 45.97mm x 45.97mm
• Power Dissipation @ Temperature Rise: 8W @ 45°C
• Thermal Resistance @ Forced Air Flow: 1.5°C/W @ 400 LFM
• Thermal Resistance @ Natural: 6°C/W
• Product: Heatsinks
• Mounting Style: SMD/SMT
• Heatsink Material: Aluminum
• Fin Style: Omnidirectional Pin
• Dimensions: 46 mm L x 46 mm W x 31.8 mm H
• Designed For: TO-3, TO-220
• Packages Cooled: TO-3 / TO-220
• Width: 46mm
• Heat Sink Material: Aluminum
• Length: 46mm
• Mounting Type: PC Board Through Hole
• Size: 1.250H X 1.810W X 1.810L"
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 345-1051

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