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TO-3 Thermal Management

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 7.4 Degree C/W, 25mm PF527G Aavid 1: £13.16 266In Stock	Mfr. Part No. PF527G Mouser Part No 532-PF-527	Aavid	Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 7.4 Degree C/W, 25mm	Datasheet	266In Stock	£13.16 £12.27 £11.77 £11.76 View £10.33 £10.28	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: £1.49 4,703In Stock	Mfr. Part No. 501503B00000G Mouser Part No 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	£1.49 £1.37 £1.34 £1.30 View £1.23 £1.15 £1.08 £1.03 £0.969	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: £9.58 215In Stock	Mfr. Part No. 623A Mouser Part No 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	£9.58 £8.83 £8.41 £8.09 View £7.71 £7.43 £7.16 £6.91	Min.: 1 Mult.: 1
Heat Sinks Heat Sink for TO3, 120.7x76.2x66.7mm, 6.9mm dia. Hole Mounting Hole Pattern 421F Wakefield Thermal 1: £29.13 60In Stock	Mfr. Part No. 421F Mouser Part No 567-421F	Wakefield Thermal	Heat Sinks Heat Sink for TO3, 120.7x76.2x66.7mm, 6.9mm dia. Hole Mounting Hole Pattern	Datasheet	60In Stock	£29.13 £27.61 £26.39 £26.19 View £26.18 £25.54	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: £2.60 2,600In Stock	Mfr. Part No. 500103B00000G Mouser Part No 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	£2.60 £2.42 £2.36 £2.23 View £2.10 £1.96 £1.89 £1.80	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: £4.97 278In Stock	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	278In Stock	£4.97 £3.63 £3.46 £3.42	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: £2.92 1,473In Stock	Mfr. Part No. 569003B00000G Mouser Part No 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	£2.92 £2.72 £2.51 £2.36 View £2.22 £2.13	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: £17.70 88In Stock	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	88In Stock	£17.70 £15.69 £15.13 £14.46 View £14.45 Quote	Min.: 1 Mult.: 1
Heat Sinks Double-Surface Heat Sink for TO3, V Hole Pattern, 120.7mm 401V Wakefield Thermal 1: £9.12 108In Stock	Mfr. Part No. 401V Mouser Part No 567-401V	Wakefield Thermal	Heat Sinks Double-Surface Heat Sink for TO3, V Hole Pattern, 120.7mm	Datasheet	108In Stock	£9.12 £8.90	Min.: 1 Mult.: 1
Heat Sinks Space-Saving, Expandable Collar Heat Sink, TO3, Horizontal, 12.5 C/W, Black 579103B00000G Aavid 1: £1.96 2,707In Stock	Mfr. Part No. 579103B00000G Mouser Part No 532-579103B00	Aavid	Heat Sinks Space-Saving, Expandable Collar Heat Sink, TO3, Horizontal, 12.5 C/W, Black	Datasheet	2,707In Stock	£1.96 £1.78 £1.73 £1.63 View £1.54 £1.46 £1.40 £1.34 £1.24	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: £4.65 300In Stock	Mfr. Part No. 621A Mouser Part No 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	£4.65 £4.42 £4.30 £4.06 View £3.82 £3.57 £3.45 £3.21	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: £6.96 929In Stock	Mfr. Part No. 501603B00000G Mouser Part No 532-501603B00	Aavid	Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 7.8 Degree C/W, 31.75mm	Datasheet	929In Stock	£6.96 £6.28 £5.98 £5.76 View £5.55 £5.19 £5.00 £4.79	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS01 Apex Microtechnology 1: £29.61 922In Stock	Mfr. Part No. HS01 Mouser Part No 137-HS01	Apex Microtechnology	Heat Sinks Heatsink, T03	Datasheet	922In Stock	£29.61 £27.31 £25.61 £24.05 View £23.19 £22.07	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS02 Apex Microtechnology 1: £30.89 253In Stock 276On Order	Mfr. Part No. HS02 Mouser Part No 137-HS02	Apex Microtechnology	Heat Sinks Heatsink, T03	Datasheet	253In Stock 276On Order	£30.89 £28.48 £26.71 £25.09 View £24.18 £23.03	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS13 Apex Microtechnology 1: £108.16 27In Stock	Mfr. Part No. HS13 Mouser Part No 137-HS13	Apex Microtechnology	Heat Sinks Heatsink, T03	Datasheet	27In Stock	£108.16 £97.18 £91.14 £87.83	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03, PDIP, Pwr Pkg, H2O-cooled HS11 Apex Microtechnology 1: £239.90 2In Stock	Mfr. Part No. HS11 Mouser Part No 137-HS11	Apex Microtechnology	Heat Sinks Heatsink, T03, PDIP, Pwr Pkg, H2O-cooled	Datasheet	2In Stock	£239.90 £54.35 £50.72 £48.91 View £47.12 Quote	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS14 Apex Microtechnology 1: £40.59 22In Stock	Mfr. Part No. HS14 Mouser Part No 137-HS14	Apex Microtechnology	Heat Sinks Heatsink, T03	Datasheet	22In Stock	£40.59 £38.21 £35.83 £33.44 View £32.25 £32.24 Quote	Min.: 1 Mult.: 1
Heat Sinks Hat Section Heat Sink for TO-3, Horizontal, Black Anodized, 50.8x44.45x9.52mm 506007B00000G Aavid 1: £1.48 4,717In Stock	Mfr. Part No. 506007B00000G Mouser Part No 532-506007B00	Aavid	Heat Sinks Hat Section Heat Sink for TO-3, Horizontal, Black Anodized, 50.8x44.45x9.52mm	Datasheet	4,717In Stock	£1.48 £1.34 £1.29 £1.25 View £1.24 £1.14	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: £3.52 84In Stock	Mfr. Part No. ATS-PCBT1088 Mouser Part No 984-ATS-PCBT1088	Advanced Thermal Solutions	Heat Sinks BGA Heat Sink, High Performance, Stamped, No TIM, TO-3, 45.21x45.21x30.99mm	Datasheet	84In Stock	£3.52 £3.15 £3.00 £2.90 View £2.78 £2.63 £2.52 £2.45 £2.42	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: £11.18 1,720In Stock	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	1,720In Stock	£11.18 £9.67 £8.96 £8.81 View £8.45 £8.06 £7.75 £7.54 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: £1.27 6,817In Stock	Mfr. Part No. 501303B00000G Mouser Part No 532-501303B00	Aavid	Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 12 Degree C/W, 12.7mm	Datasheet	6,817In Stock	£1.27 £1.17 £1.13 £1.10 View £1.05 £0.986 £0.952 £0.803	Min.: 1 Mult.: 1
Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 10 Degree C/W, 19.05mm 501403B00000G Aavid 1: £3.92 1,186In Stock	Mfr. Part No. 501403B00000G Mouser Part No 532-501403B00	Aavid	Heat Sinks Diamond Shaped, Basket Heat Sink for TO-3, Horizontal, 10 Degree C/W, 19.05mm	Datasheet	1,186In Stock	£3.92 £3.51 £3.32 £3.19 View £3.04 £2.89 £2.80 £2.69 £2.63	Min.: 1 Mult.: 1
Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink for TO-3, 31.8mm Height 680-125A Wakefield Thermal 1: £15.53 206In Stock 750Expected 11/12/2026	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	206In Stock 750Expected 11/12/2026	£15.53 £15.04 £13.08 £12.29 View £11.59 £11.17 £10.79 Quote	Min.: 1 Mult.: 1
Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink, No Hole Pattern, 31.8mm Height 680-125K Wakefield Thermal 1: £14.47 117In Stock	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	117In Stock	£14.47 £13.48 £12.68 £12.11 £10.65	Min.: 1 Mult.: 1
Heat Sinks Highest Efficiency/Lowest Unit Cost Heat Sink for TO-3, 33.3mm Height 690-3B Wakefield Thermal 1: £2.78 2,013In Stock	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 about Wakefield Thermal wakefield vette 690 extruded heat sinks	Datasheet	2,013In Stock	£2.78 £2.61 £2.42 £2.21 View £2.10 £1.55	Min.: 1 Mult.: 1

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TO-3 Thermal Management

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