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TO-3 Thermal Management

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Part #

Heat Sinks Double-Surface Heat Sink for TO-3 Case, 120.7x38.1x31.8mm, 6.9mm Dia. Mount Hole

401F
Wakefield Thermal
1: $17.31
104In Stock

Mfr. Part No.
401F

Mouser Part No
567-401F

Wakefield Thermal

Heat Sinks Double-Surface Heat Sink for TO-3 Case, 120.7x38.1x31.8mm, 6.9mm Dia. Mount Hole

Datasheet

104In Stock

$17.31

$15.21

$14.55

$13.86

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Min.: 1
Mult.: 1

Heat Sinks Double-Surface Heat Sink for TO-3 Case Styles, 120.7x76.2x31.8mm

403K
Wakefield Thermal
1: $19.55
52In Stock

Mfr. Part No.
403K

Mouser Part No
567-403K

Wakefield Thermal

Heat Sinks Double-Surface Heat Sink for TO-3 Case Styles, 120.7x76.2x31.8mm

Datasheet

52In Stock

$19.55

$17.49

$15.81

$14.76

$14.04

Min.: 1
Mult.: 1

Heat Sinks Low Profile Heat Sink for All Metal-Case Power Semis, No Hole, 120.6x38.1x11.7mm

621K
Wakefield Thermal
1: $5.29
2In Stock
500Expected 31/08/2026

Mfr. Part No.
621K

Mouser Part No
567-621K

Wakefield Thermal

Heat Sinks Low Profile Heat Sink for All Metal-Case Power Semis, No Hole, 120.6x38.1x11.7mm

Datasheet

2In Stock

500Expected 31/08/2026

$5.29

$5.02

$4.89

$4.61

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Min.: 1
Mult.: 1

Heat Sinks Natural Convection Heat Sink for Metal-Case Semis for TO3, 25.4mm H

641A
Wakefield Thermal
1: $12.88
98In Stock

Mfr. Part No.
641A

Mouser Part No
567-641-A

Wakefield Thermal

Heat Sinks Natural Convection Heat Sink for Metal-Case Semis for TO3, 25.4mm H

Datasheet

98In Stock

$12.88

$11.40

$10.75

$10.36

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Min.: 1
Mult.: 1

Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink for TO-3, 25.4mm Height

680-10A
Wakefield Thermal
1: $16.36
99In Stock

Mfr. Part No.
680-10A

Mouser Part No
567-680-10A

Wakefield Thermal

Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink for TO-3, 25.4mm Height

Datasheet

99In Stock

$16.36

$15.80

$12.96

$12.43

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Min.: 1
Mult.: 1

Heat Sinks Heatsink, T03

HS02
Apex Microtechnology
1: $29.87
732On Order

Mfr. Part No.
HS02

Mouser Part No
137-HS02

Apex Microtechnology

Heat Sinks Heatsink, T03

Datasheet

732On Order

$29.87

$27.09

$25.40

$24.26

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Min.: 1
Mult.: 1

Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 10.1 Degree C/W, 12.5mm

PF523G
Aavid
1: $8.88
168In Stock

Mfr. Part No.
PF523G

Mouser Part No
532-PF-523

Aavid

Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 10.1 Degree C/W, 12.5mm

Datasheet

168In Stock

$8.88

$8.81

$8.29

$7.97

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Min.: 1
Mult.: 1

Heat Sinks Heatsink, T03

HS13
Apex Microtechnology
1: $150.65
60On Order

Mfr. Part No.
HS13

Mouser Part No
137-HS13

Apex Microtechnology

Heat Sinks Heatsink, T03

Datasheet

60On Order

$150.65

$136.26

$127.56

$122.86

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Min.: 1
Mult.: 1

Heat Sinks Square Basket Heat Sink for TO-3, Slanted Fin, Horizontal, 5 Degree C/W, 31.75mm

500403B00000G
Aavid
1: $12.92
2,582On Order

Mfr. Part No.
500403B00000G

Mouser Part No
532-500403B00

Aavid

Heat Sinks Square Basket Heat Sink for TO-3, Slanted Fin, Horizontal, 5 Degree C/W, 31.75mm

Datasheet

2,582On Order

$12.92

$12.38

$11.67

$11.58

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Min.: 1
Mult.: 1

Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink for TO-3, 31.8mm Height

680-125A
Wakefield Thermal
1: $16.46
497Expected 16/07/2026

Mfr. Part No.
680-125A

Mouser Part No
567-680-125A

Wakefield Thermal

Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink for TO-3, 31.8mm Height

Datasheet

497Expected 16/07/2026

$16.46

$15.34

$14.44

$13.54

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Min.: 1
Mult.: 1

Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink, No Hole Pattern, 31.8mm Height

680-125K
Wakefield Thermal
1: $17.11
238Expected 15/07/2026

Mfr. Part No.
680-125K

Mouser Part No
567-680-125K

Wakefield Thermal

Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink, No Hole Pattern, 31.8mm Height

Datasheet

238Expected 15/07/2026

$17.11

$17.10

$17.02

$16.98

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Min.: 1
Mult.: 1

Heat Sinks Highest Efficiency/Lowest Unit Cost Heat Sink for TO-3, 33.3mm Height

690-3B
Wakefield Thermal
1: $2.16
2,486Expected 28/05/2026

Mfr. Part No.
690-3B

Mouser Part No
567-690-3B

Wakefield Thermal

Heat Sinks Highest Efficiency/Lowest Unit Cost Heat Sink for TO-3, 33.3mm Height

Learn More

Datasheet

2,486Expected 28/05/2026

$2.16

$1.95

$1.90

$1.79

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Min.: 1
Mult.: 1

Heat Sinks Double-Surface Heat Sink for TO-3 Case, 120.7x76.2x31.8mm, 6.9mm Dia. Mount Hole

403F
Wakefield Thermal
1: $20.19
90Expected 13/07/2026

Mfr. Part No.
403F

Mouser Part No
567-403F

Wakefield Thermal

Heat Sinks Double-Surface Heat Sink for TO-3 Case, 120.7x76.2x31.8mm, 6.9mm Dia. Mount Hole

Datasheet

90Expected 13/07/2026

$20.19

$17.15

$15.98

Min.: 1
Mult.: 1

Heat Sinks Double-Surface Heat Sink for TO-3 Case Styles and Diodes, 120.7x76.2x47.6mm

413K
Wakefield Thermal
1: $20.55
70Expected 02/06/2026

Mfr. Part No.
413K

Mouser Part No
567-413K

Wakefield Thermal

Heat Sinks Double-Surface Heat Sink for TO-3 Case Styles and Diodes, 120.7x76.2x47.6mm

Datasheet

70Expected 02/06/2026

$20.55

$17.46

$16.59

$15.42

Min.: 1
Mult.: 1

Heat Sinks Heatsink, T03

HS03
Apex Microtechnology
1: $86.58
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
HS03

Mouser Part No
137-HS03

Apex Microtechnology

Heat Sinks Heatsink, T03

Datasheet

Non-Stocked Lead-Time 16 Weeks

$86.58

$78.83

$73.57

$70.94

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Min.: 1
Mult.: 1

Heat Sinks Heatsink, T03

HS04
Apex Microtechnology
1: $162.10
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
HS04

Mouser Part No
137-HS04

Apex Microtechnology

Heat Sinks Heatsink, T03

Datasheet

Non-Stocked Lead-Time 16 Weeks

$162.10

$143.41

$136.59

$131.68

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Min.: 1
Mult.: 1

Heat Sinks Heatsink, T03

HS05
Apex Microtechnology
1: $129.43
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
HS05

Mouser Part No
137-HS05

Apex Microtechnology

Heat Sinks Heatsink, T03

Datasheet

Non-Stocked Lead-Time 16 Weeks

$129.43

$120.25

$112.22

$108.22

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Min.: 1
Mult.: 1

Thermal Interface Products ulTIMiFlux Dielectric Phase Change Thermal Material, TO-3 Pad, 4 Pin

CD-02-05-3-4
Wakefield Thermal
1,000: $1.41
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
CD-02-05-3-4

Mouser Part No
567-CD-02-05-3-4

Wakefield Thermal

Thermal Interface Products ulTIMiFlux Dielectric Phase Change Thermal Material, TO-3 Pad, 4 Pin

Learn More

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.41

$1.19

Min.: 1,000
Mult.: 500

Thermal Interface Products Insulator

110500F00000G
Aavid
10,000: $2.07
Non-Stocked Lead-Time 13 Weeks

Mfr. Part No.
110500F00000G

Mouser Part No
532-110500F00G

Aavid

Thermal Interface Products Insulator

Non-Stocked Lead-Time 13 Weeks

$2.07

Min.: 10,000
Mult.: 2,000

Thermal Interface Products Conductive Hardware for TO3, 39.65mm L, 26.67mm W, 0.81mm Thick, Ceramic

4003-1G
Aavid
100: $53.30
Non-Stocked Lead-Time 13 Weeks

Mfr. Part No.
4003-1G

Mouser Part No
532-4003-1

Aavid

Thermal Interface Products Conductive Hardware for TO3, 39.65mm L, 26.67mm W, 0.81mm Thick, Ceramic

Datasheet

Non-Stocked Lead-Time 13 Weeks

$53.30

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Min.: 100
Mult.: 50

Thermal Interface Products Mounting Kit with Thermalfilm Insulator for TO-3

4804 REV D-G
Aavid
2,000: $5.60
Non-Stocked Lead-Time 13 Weeks

Mfr. Part No.
4804 REV D-G

Mouser Part No
532-4804G

Aavid

Thermal Interface Products Mounting Kit with Thermalfilm Insulator for TO-3

Datasheet

Non-Stocked Lead-Time 13 Weeks

$5.60

Min.: 2,000
Mult.: 1,000

Heat Sinks Basket Heat Sink for TO-3, Straight Fin, Horizontal, 6 Degree C/W, 31.75mm

505403B00000G
Aavid
1: $7.90
Non-Stocked Lead-Time 13 Weeks

Mfr. Part No.
505403B00000G

Mouser Part No
532-505403B00000

Aavid

Heat Sinks Basket Heat Sink for TO-3, Straight Fin, Horizontal, 6 Degree C/W, 31.75mm

Datasheet

Non-Stocked Lead-Time 13 Weeks

$7.90

$7.25

$6.99

$6.78

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Min.: 1
Mult.: 1

Heat Sinks Channel Style Heat Sink for TO-3, Base Only

520329B00000G
Aavid
1,000: $2.42
Non-Stocked Lead-Time 32 Weeks

Mfr. Part No.
520329B00000G

Mouser Part No
532-520329B00000G

Aavid

Heat Sinks Channel Style Heat Sink for TO-3, Base Only

Datasheet

Non-Stocked Lead-Time 32 Weeks

$2.42

Min.: 1,000
Mult.: 500

Heat Sinks Square Basket Heat Sink for TO-3, Horizontal, Black, 45.21x45.21x11.94mm

552703B00000G
Aavid
10,000: $2.39
Non-Stocked Lead-Time 32 Weeks

Mfr. Part No.
552703B00000G

Mouser Part No
532-552703B00

Aavid

Heat Sinks Square Basket Heat Sink for TO-3, Horizontal, Black, 45.21x45.21x11.94mm

Datasheet

Non-Stocked Lead-Time 32 Weeks

$2.39

Min.: 10,000
Mult.: 5,000

Heat Sinks Square Basket Heat Sink for TO-3, Horizontal, 8.00 C/W, Black Anodized, 12.70mm

568003B00000G
Aavid
1,000: $7.53
Non-Stocked Lead-Time 32 Weeks

Mfr. Part No.
568003B00000G

Mouser Part No
532-568003B00000

Aavid

Heat Sinks Square Basket Heat Sink for TO-3, Horizontal, 8.00 C/W, Black Anodized, 12.70mm

Datasheet

Non-Stocked Lead-Time 32 Weeks

$7.53

Quote

Min.: 1,000
Mult.: 500

TO-3 Thermal Management

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