TO-3 Heat Sinks

Results: 64
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Qty. RoHS ECAD Model Product
Designed for
Mounting Style
Heatsink Material
Fin Style
Thermal Resistance
Length
Width
Height
Wakefield Thermal Heat Sinks Heat Sink for TO3, 120.7x76.2x66.7mm, 6.9mm dia. Hole Mounting Hole Pattern
Datasheet
60In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Extruded Axial Fin 0.7 C/W 76.2 mm 120.65 mm 66.67 mm
Wakefield Thermal Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink, No Hole Pattern, 31.8mm Height
Datasheet
131In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Through Hole Aluminum Omnidirectional Fin 1.5 C/W 46 mm 46 mm 31.8 mm
Aavid Heat Sinks Space-Saving, Expandable Collar Heat Sink, TO3, Horizontal, 12.5 C/W, Black
Datasheet
2 757In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Channel Cut Fin 12.5 C/W 39.116 mm 28.575 mm 22.098 mm
Wakefield Thermal Heat Sinks Low Profile Heat Sink for All Metal-Case Power Semis for TO-3, 120.6x76.2x11.7mm
Datasheet
229In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Rectangular Fin 1.5 C/W 76.2 mm 120.65 mm 11.7 mm
Aavid Heat Sinks Basket Heat Sink for TO-3, Fold Back Fin, Horizontal, 5.5 Degree C/W, 33.27mm
Datasheet
1 498In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Folded Back Fin 5.5 C/W 46.482 mm 46.482 mm 33.274 mm
Aavid Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 8.4 Degree C/W, 25.4mm
Datasheet
5 412In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Straight Fin 8.4 C/W 47.752 mm 35.56 mm 25.4 mm
Wakefield Thermal Heat Sinks Heat Sink for TO3, 120.7x140.2x66.7mm, (1) TO3 Mounting Hole Pattern
Datasheet
36In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Extruded Axial Fin 0.96 C/W 139.7 mm 120.65 mm 66.67 mm
Wakefield Thermal Heat Sinks Double-Surface Heat Sink for TO3, V Hole Pattern, 120.7mm
Datasheet
109In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Aluminum Extruded Radial Fin 1.5 C/W 38.1 mm 120.65 mm 31.75 mm
Aavid Heat Sinks Basket Heat Sink for TO-3, Slanted Fin, Horizontal, 7.2 Degree C/W, 12.7mm
Datasheet
2 871In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum 7.2 C/W 45.97 mm 45.97 mm 12.7 mm
Wakefield Thermal Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink for TO-3, 25.4mm Height
Datasheet
93In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Through Hole Aluminum Omnidirectional Fin 2 C/W 46 mm 46 mm 25.4 mm
Wakefield Thermal Heat Sinks Low Profile Heat Sink for All Metal-Case Power Semis for TO-3, 120.6x38.1x11.7mm
Datasheet
301In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Rectangular Fin 2 C/W 120.6 mm 38.1 mm 11.7 mm
Wakefield Thermal Heat Sinks Double-Surface Heat Sink for TO-3 Case, 120.7x76.2x31.8mm, 6.9mm Dia. Mount Hole
Datasheet
90In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Through Hole Aluminum Extruded Radial Fin 0.9 C/W 111.1 mm 76.2 mm 31.8 mm
Apex Microtechnology Heat Sinks Heatsink, T03
Datasheet
559In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Chassis Aluminum Straight Fin 11.6 C/W 1.6 in 1 in 1 in
Apex Microtechnology Heat Sinks Heatsink, T03
Datasheet
208In Stock
329Expected 25/09/2026
Min.: 1
Mult.: 1

Heat Sinks TO-3 Chassis Aluminum Vertical Fin 4.5 C/W 1.81 in 1.81 in 1.5 in
Apex Microtechnology Heat Sinks Heatsink, T03
Datasheet
47In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Chassis Aluminum Straight Fin 1.48 C/W 5.5 in 4.812 in 1.312 in
Apex Microtechnology Heat Sinks Heatsink, T03
Datasheet
30In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Chassis Aluminum Straight Fin 2 C/W 4.406 in 3 in 1.312 in
Advanced Thermal Solutions Heat Sinks BGA Heat Sink, High Performance, Stamped, No TIM, TO-3, 45.21x45.21x30.99mm
Datasheet
85In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Straight Fin 6 C/W 45.21 mm 45.21 mm 30.99 mm
Apex Microtechnology Heat Sinks Heatsink, T03
Datasheet
86In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Chassis Aluminum Vertical Fin 11.7 C/W 1.65 in 1.31 in 0.75 in
Aavid Heat Sinks Hat Section Heat Sink for TO-3, Horizontal, Black Anodized, 50.8x44.45x9.52mm
Datasheet
5 024In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Channel Cut Fin 7 C/W 50.8 mm 44.45 mm 9.525 mm
Aavid Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 12 Degree C/W, 12.7mm
Datasheet
7 679In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Straight Fin 12 C/W 47.752 mm 35.56 mm 12.7 mm
Aavid Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 10 Degree C/W, 19.05mm
Datasheet
2 396In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Straight Fin 10 C/W 47.752 mm 35.56 mm 19.05 mm
Aavid Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 7.4 Degree C/W, 25mm
Datasheet
356In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Aluminum
Wakefield Thermal Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink for TO-3, 31.8mm Height
Datasheet
213In Stock
750Expected 11/12/2026
Min.: 1
Mult.: 1

Heat Sinks TO-3 Through Hole Aluminum Omnidirectional Fin 1.5 C/W 46 mm 46 mm 31.75 mm
Wakefield Thermal Heat Sinks Highest Efficiency/Lowest Unit Cost Heat Sink for TO-3, 33.3mm Height
Datasheet
2 168In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Through Hole Aluminum Omnidirectional Fin 2 C/W 47.24 mm 47.24 mm 33.27 mm
Aavid Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 7.8 Degree C/W, 31.75mm
Datasheet
958In Stock
Min.: 1
Mult.: 1

Heat Sinks TO-3 Screw Aluminum Straight Fin 7.8 C/W 47.752 mm 35.56 mm 31.75 mm