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TO-3 Thermal Management

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Heat Sinks Heat Sink for TO3, 120.7x76.2x66.7mm, 6.9mm dia. Hole Mounting Hole Pattern 421F Wakefield Thermal 1: $43.12 60In Stock	Mfr. Part # 421F Mouser Part # 567-421F	Wakefield Thermal	Heat Sinks Heat Sink for TO3, 120.7x76.2x66.7mm, 6.9mm dia. Hole Mounting Hole Pattern	Datasheet	60In Stock	$43.12 $40.87 $39.07 $38.77 View $38.75 $37.82 Quote	Min.: 1 Mult.: 1
Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink, No Hole Pattern, 31.8mm Height 680-125K Wakefield Thermal 1: $21.41 117In Stock	Mfr. Part # 680-125K Mouser Part # 567-680-125K	Wakefield Thermal	Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink, No Hole Pattern, 31.8mm Height	Datasheet	117In Stock	$21.41 $19.96 $18.77 $17.93 $15.77	Min.: 1 Mult.: 1
Heat Sinks Space-Saving, Expandable Collar Heat Sink, TO3, Horizontal, 12.5 C/W, Black 579103B00000G Aavid 1: $3.38 2,707In Stock	Mfr. Part # 579103B00000G Mouser Part # 532-579103B00	Aavid	Heat Sinks Space-Saving, Expandable Collar Heat Sink, TO3, Horizontal, 12.5 C/W, Black	Datasheet	2,707In Stock	$3.38 $3.08 $2.99 $2.83 View $2.67 $2.52 $2.42 $2.33 $2.13	Min.: 1 Mult.: 1
Heat Sinks Low Profile Heat Sink for All Metal-Case Power Semis for TO-3, 120.6x76.2x11.7mm 623A Wakefield Thermal 1: $14.17 215In Stock	Mfr. Part # 623A Mouser Part # 567-623A	Wakefield Thermal	Heat Sinks Low Profile Heat Sink for All Metal-Case Power Semis for TO-3, 120.6x76.2x11.7mm	Datasheet	215In Stock	$14.17 $13.07 $12.44 $11.97 View $11.41 $11.00 $10.60 $10.22	Min.: 1 Mult.: 1
Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 8.4 Degree C/W, 25.4mm 501503B00000G Aavid 1: $2.59 4,703In Stock	Mfr. Part # 501503B00000G Mouser Part # 532-501503B00	Aavid	Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 8.4 Degree C/W, 25.4mm	Datasheet	4,703In Stock	$2.59 $2.38 $2.31 $2.25 View $2.13 $2.00 $1.87 $1.78 $1.68	Min.: 1 Mult.: 1
Heat Sinks Basket Heat Sink for TO-3, Fold Back Fin, Horizontal, 5.5 Degree C/W, 33.27mm 569003B00000G Aavid 1: $5.06 1,473In Stock	Mfr. Part # 569003B00000G Mouser Part # 532-569003B00	Aavid	Heat Sinks Basket Heat Sink for TO-3, Fold Back Fin, Horizontal, 5.5 Degree C/W, 33.27mm	Datasheet	1,473In Stock	$5.06 $4.72 $4.34 $4.08 View $3.84 $3.69	Min.: 1 Mult.: 1
Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 7.4 Degree C/W, 25mm PF527G Aavid 1: $22.79 266In Stock	Mfr. Part # PF527G Mouser Part # 532-PF-527	Aavid	Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 7.4 Degree C/W, 25mm	Datasheet	266In Stock	$22.79 $21.26 $20.37 $20.36 View $17.89 Quote	Min.: 1 Mult.: 1
Heat Sinks Basket Heat Sink for TO-3, Slanted Fin, Horizontal, 7.2 Degree C/W, 12.7mm 500103B00000G Aavid 1: $4.51 2,600In Stock	Mfr. Part # 500103B00000G Mouser Part # 532-500103B00	Aavid	Heat Sinks Basket Heat Sink for TO-3, Slanted Fin, Horizontal, 7.2 Degree C/W, 12.7mm	Datasheet	2,600In Stock	$4.51 $4.19 $4.08 $3.85 View $3.63 $3.38 $3.28 $3.12	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: $7.36 278In Stock	Mfr. Part # 621K Mouser Part # 567-621K	Wakefield Thermal	Heat Sinks Low Profile Heat Sink for All Metal-Case Power Semis, No Hole, 120.6x38.1x11.7mm	Datasheet	278In Stock	$7.36 $5.38 $5.12 $5.07	Min.: 1 Mult.: 1
Heat Sinks Low Profile Heat Sink for All Metal-Case Power Semis for TO-3, 120.6x38.1x11.7mm 621A Wakefield Thermal 1: $6.89 300In Stock	Mfr. Part # 621A Mouser Part # 567-621A	Wakefield Thermal	Heat Sinks Low Profile Heat Sink for All Metal-Case Power Semis for TO-3, 120.6x38.1x11.7mm		300In Stock	$6.89 $6.54 $6.37 $6.01 View $5.66 $5.29 $5.11 $4.76	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: $26.21 89In Stock	Mfr. Part # 403F Mouser Part # 567-403F	Wakefield Thermal	Heat Sinks Double-Surface Heat Sink for TO-3 Case, 120.7x76.2x31.8mm, 6.9mm Dia. Mount Hole	Datasheet	89In Stock	$26.21 $23.22 $22.40 $21.40 View $21.39 Quote	Min.: 1 Mult.: 1
Heat Sinks Double-Surface Heat Sink for TO3, V Hole Pattern, 120.7mm 401V Wakefield Thermal 1: $13.51 108In Stock	Mfr. Part # 401V Mouser Part # 567-401V	Wakefield Thermal	Heat Sinks Double-Surface Heat Sink for TO3, V Hole Pattern, 120.7mm	Datasheet	108In Stock	$13.51 $13.18 $13.17	Min.: 1 Mult.: 1
Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 7.8 Degree C/W, 31.75mm 501603B00000G Aavid 1: $12.05 929In Stock	Mfr. Part # 501603B00000G Mouser Part # 532-501603B00	Aavid	Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 7.8 Degree C/W, 31.75mm	Datasheet	929In Stock	$12.05 $10.88 $10.36 $9.98 View $9.62 $8.98 $8.66 $8.29	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS01 Apex Microtechnology 1: $51.27 499In Stock 423On Order	Mfr. Part # HS01 Mouser Part # 137-HS01	Apex Microtechnology	Heat Sinks Heatsink, T03	Datasheet	499In Stock 423On Order On Order Ship Dates Mfr. #: HS01 Stock: 499 Can Ship Immediately On Order: 270 Expected 11/4/2026 153 Expected 11/11/2026 Factory Lead-Time: 16 Weeks	$51.27 $47.28 $44.33 $41.65 View $40.14 $38.22	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS02 Apex Microtechnology 1: $53.48 260In Stock 276Expected 10/29/2026	Mfr. Part # HS02 Mouser Part # 137-HS02	Apex Microtechnology	Heat Sinks Heatsink, T03	Datasheet	260In Stock 276Expected 10/29/2026	$53.48 $49.31 $46.24 $43.45 View $41.87 $39.87	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS13 Apex Microtechnology 1: $187.28 31In Stock	Mfr. Part # HS13 Mouser Part # 137-HS13	Apex Microtechnology	Heat Sinks Heatsink, T03	Datasheet	31In Stock	$187.28 $168.27 $157.82 $152.09	Min.: 1 Mult.: 1
Heat Sinks BGA Heat Sink, High Performance, Stamped, No TIM, TO-3, 45.21x45.21x30.99mm ATS-PCBT1088 Advanced Thermal Solutions 1: $6.10 85In Stock	Mfr. Part # ATS-PCBT1088 Mouser Part # 984-ATS-PCBT1088	Advanced Thermal Solutions	Heat Sinks BGA Heat Sink, High Performance, Stamped, No TIM, TO-3, 45.21x45.21x30.99mm	Datasheet	85In Stock	$6.10 $5.46 $5.20 $5.02 View $4.82 $4.55 $4.37 $4.25 $4.19	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03, PDIP, Pwr Pkg, H2O-cooled HS11 Apex Microtechnology 1: $415.40 2In Stock	Mfr. Part # HS11 Mouser Part # 137-HS11	Apex Microtechnology	Heat Sinks Heatsink, T03, PDIP, Pwr Pkg, H2O-cooled	Datasheet	2In Stock	$415.40 $94.11 $87.83 $84.70 View $81.58 Quote	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS14 Apex Microtechnology 1: $70.29 28In Stock	Mfr. Part # HS14 Mouser Part # 137-HS14	Apex Microtechnology	Heat Sinks Heatsink, T03	Datasheet	28In Stock	$70.29 $66.16 $62.04 $57.89 View $55.84 $55.82 Quote	Min.: 1 Mult.: 1
Heat Sinks Hat Section Heat Sink for TO-3, Horizontal, Black Anodized, 50.8x44.45x9.52mm 506007B00000G Aavid 1: $2.55 4,717In Stock	Mfr. Part # 506007B00000G Mouser Part # 532-506007B00	Aavid	Heat Sinks Hat Section Heat Sink for TO-3, Horizontal, Black Anodized, 50.8x44.45x9.52mm	Datasheet	4,717In Stock	$2.55 $2.31 $2.24 $2.16 View $2.15 $1.98	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: $19.36 1,745In Stock	Mfr. Part # 500403B00000G Mouser Part # 532-500403B00	Aavid	Heat Sinks Square Basket Heat Sink for TO-3, Slanted Fin, Horizontal, 5 Degree C/W, 31.75mm	Datasheet	1,745In Stock	$19.36 $16.74 $15.51 $15.25 View $14.64 $13.95 $13.43 $13.07 Quote	Min.: 1 Mult.: 1
Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 12 Degree C/W, 12.7mm 501303B00000G Aavid 1: $8.28 6,918In Stock	Mfr. Part # 501303B00000G Mouser Part # 532-501303B00	Aavid	Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 12 Degree C/W, 12.7mm	Datasheet	6,918In Stock	$8.28 $7.77 $6.85 $6.53 View $6.29 $5.34	Min.: 1 Mult.: 1
Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 10 Degree C/W, 19.05mm 501403B00000G Aavid 1: $6.79 1,186In Stock	Mfr. Part # 501403B00000G Mouser Part # 532-501403B00	Aavid	Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 10 Degree C/W, 19.05mm	Datasheet	1,186In Stock	$6.79 $6.07 $5.75 $5.51 View $5.27 $5.01 $4.85 $4.65 $4.55	Min.: 1 Mult.: 1
Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink for TO-3, 31.8mm Height 680-125A Wakefield Thermal 1: $22.98 206In Stock 750Expected 12/11/2026	Mfr. Part # 680-125A Mouser Part # 567-680-125A	Wakefield Thermal	Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink for TO-3, 31.8mm Height	Datasheet	206In Stock 750Expected 12/11/2026	$22.98 $22.27 $19.36 $18.20 View $17.16 $16.54 $15.98 Quote	Min.: 1 Mult.: 1
Heat Sinks Highest Efficiency/Lowest Unit Cost Heat Sink for TO-3, 33.3mm Height 690-3B Wakefield Thermal 1: $4.11 2,018In Stock	Mfr. Part # 690-3B Mouser Part # 567-690-3B	Wakefield Thermal	Heat Sinks Highest Efficiency/Lowest Unit Cost Heat Sink for TO-3, 33.3mm Height Learn More about Wakefield Thermal wakefield vette 690 extruded heat sinks	Datasheet	2,018In Stock	$4.11 $3.86 $3.58 $3.26 View $3.11 $2.30	Min.: 1 Mult.: 1

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