273-AB Wakefield Thermal Solutions, 273-AB Datasheet - Page 17
![HEATSINK TO-220 LOW HEIGHT BLK](/photos/5/88/58838/273-ab_sml.jpg)
273-AB
Manufacturer Part Number
273-AB
Description
HEATSINK TO-220 LOW HEIGHT BLK
Manufacturer
Wakefield Thermal Solutions
Series
273r
Specifications of 273-AB
Thermal Resistance
7.2 C / W
Height
0.375" (9.53mm)
Color
Black
Package Cooled
TO-220, TO-218
Attachment Method
Bolt On and PC Pin
Outline
19.05mm x 19.05mm
Power Dissipation @ Temperature Rise
2W @ 49°C
Thermal Resistance @ Forced Air Flow
7.2°C/W @ 400 LFM
Thermal Resistance @ Natural
24.5°C/W
Product
Heatsinks
Mounting Style
SMD/SMT
Heatsink Material
Aluminum
Fin Style
Folded
Dimensions
19.05 mm L x 9.53 mm W x 19.05 mm H
Designed For
TO-218, TO-220
Packages Cooled
TO-218 / TO-220
Width
19.1mm
Heat Sink Material
Aluminum
Length
19.1mm
Mounting Type
Screw
Size
0.75L X 0.375H X 0.750W"
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
345-1022
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
273-AB
Manufacturer:
WAK
Quantity:
14 891
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