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TO-3 Thermal Management

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (INR) 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, 7.8 Degree C/W, 31.75mm 501603B00000G Aavid 1: ₹191.08 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	₹191.08 ₹175.79 ₹171.02 ₹167.20 View ₹157.64 ₹154.77 ₹130.89 ₹123.25	Min.: 1 Mult.: 1
Heat Sinks Basket Heat Sink, TO3, Space-Saving, Horizontal, 13.4 Degree C/W, 19.05mm 575703B00000G Aavid 1: ₹324.84 642In Stock 6,000Expected 23-04-2027	Mfr. Part No. 575703B00000G Mouser Part No 532-575703B00	Aavid	Heat Sinks Basket Heat Sink, TO3, Space-Saving, Horizontal, 13.4 Degree C/W, 19.05mm	Datasheet	642In Stock 6,000Expected 23-04-2027	₹324.84 ₹287.58 ₹274.20 ₹260.82 View ₹254.14 ₹253.18	Min.: 1 Mult.: 1
Heat Sinks Snap-On Cover for TO-3, Nylon, Black 8909NBG Aavid 1: ₹31.53 3,468In Stock	Mfr. Part No. 8909NBG Mouser Part No 532-8909NBG	Aavid	Heat Sinks Snap-On Cover for TO-3, Nylon, Black	Datasheet	3,468In Stock	₹31.53 ₹29.04 ₹28.76	Min.: 1 Mult.: 1
Heat Sinks Double-Surface Heat Sink for TO-3 Case, 120.7x38.1x31.8mm, 6.9mm Dia. Mount Hole 401F Wakefield Thermal 1: ₹1,662.40 27In 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	27In Stock	₹1,662.40 ₹1,485.65 ₹1,414.95 ₹1,355.71 View ₹1,306.03 ₹1,243.93 ₹1,204.76	Min.: 1 Mult.: 1
Heat Sinks Double-Surface Heat Sink for TO-3 Case Styles, 120.7x76.2x31.8mm 403K Wakefield Thermal 1: ₹1,907.93 44In 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	44In Stock	₹1,907.93 ₹1,637.56 ₹1,577.37 ₹1,543.93 View ₹1,458.90 ₹1,421.64 ₹1,370.04	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: ₹1,855.39 56In Stock	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	56In Stock	₹1,855.39 ₹1,693.92 ₹1,609.85 ₹1,600.30 View ₹1,567.81 ₹1,536.28 ₹1,516.22 Quote	Min.: 1 Mult.: 1
Heat Sinks Natural Convection Heat Sink for Metal-Case Semis for TO3, 25.4mm H 641A Wakefield Thermal 1: ₹1,230.56 86In 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	86In Stock	₹1,230.56 ₹1,089.16 ₹1,028.01 ₹989.79 View ₹953.49 ₹913.36 ₹882.79 ₹851.26	Min.: 1 Mult.: 1
Heat Sinks Natural Convection Heat Sink for Metal-Case Semis, No Hole Pattern, 25.4mm H 641K Wakefield Thermal 1: ₹1,326.10 37In Stock	Mfr. Part No. 641K Mouser Part No 567-641-K	Wakefield Thermal	Heat Sinks Natural Convection Heat Sink for Metal-Case Semis, No Hole Pattern, 25.4mm H	Datasheet	37In Stock	₹1,326.10 ₹1,174.19 ₹1,107.31 ₹1,045.21 View ₹996.48 ₹942.02 ₹917.18	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: ₹925.78 156In 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	156In Stock	₹925.78 ₹891.39 ₹841.71 ₹792.03 View ₹742.35 ₹692.67 ₹665.91 ₹655.40 Quote	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS09 Apex Microtechnology 1: ₹1,315.59 250Expected 27-11-2026	Mfr. Part No. HS09 Mouser Part No 137-HS09	Apex Microtechnology	Heat Sinks Heatsink, T03	Datasheet	250Expected 27-11-2026	₹1,315.59 ₹1,216.22 ₹1,144.57 ₹1,073.87 View ₹1,030.88 ₹982.15 ₹945.85 ₹920.05	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: ₹867.50 1,980Expected 09-10-2026	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	1,980Expected 09-10-2026	₹867.50 ₹866.55 Quote Quote	Min.: 1 Mult.: 1
Heat Sinks Double-Surface Heat Sink for TO3, 120.7x38.1x31.8mm, (1) TO3 Hole Mount Pattern 401A Wakefield Thermal 1: ₹1,348.07 111Expected 08-10-2026	Mfr. Part No. 401A Mouser Part No 567-401-A	Wakefield Thermal	Heat Sinks Double-Surface Heat Sink for TO3, 120.7x38.1x31.8mm, (1) TO3 Hole Mount Pattern	Datasheet	111Expected 08-10-2026	₹1,348.07 ₹1,257.31 ₹1,174.19 ₹1,114.95 View ₹1,086.29 ₹1,034.70 ₹977.37 ₹959.22 Quote	Min.: 1 Mult.: 1
Heat Sinks Double-Surface Heat Sink for TO-3 Case Styles, 120.7x38.1x31.8mm 401K Wakefield Thermal 1: ₹1,400.62 112Expected 28-10-2026	Mfr. Part No. 401K Mouser Part No 567-401-K	Wakefield Thermal	Heat Sinks Double-Surface Heat Sink for TO-3 Case Styles, 120.7x38.1x31.8mm		112Expected 28-10-2026	₹1,400.62 ₹1,283.10 ₹1,172.28 ₹1,128.33 View ₹1,127.37 ₹1,073.87 ₹993.62 ₹972.60 Quote	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: ₹484.39 303Expected 24-09-2026	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	303Expected 24-09-2026	₹484.39 ₹470.06 ₹462.41 ₹425.15 View ₹404.13 ₹403.18 ₹394.58 ₹373.56 ₹368.78	Min.: 1 Mult.: 1
Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink for TO-3, 12.7mm Height 680-5A Wakefield Thermal 1: ₹2,268.12 17Expected 21-10-2026	Mfr. Part No. 680-5A Mouser Part No 567-680-5A	Wakefield Thermal	Heat Sinks Maximum Efficiency, Omnidirectional Heat Sink for TO-3, 12.7mm Height	Datasheet	17Expected 21-10-2026	₹2,268.12 ₹2,145.83 ₹2,056.02 ₹1,962.39 ₹1,740.74	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS03 Apex Microtechnology 1: ₹8,271.85 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	₹8,271.85 ₹7,531.42 ₹7,028.88 ₹6,777.61 View ₹6,529.20 Quote	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS04 Apex Microtechnology 1: ₹15,487.03 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	₹15,487.03 ₹13,701.39 ₹13,049.81 ₹12,580.71 View Quote	Min.: 1 Mult.: 1
Heat Sinks Heatsink, T03 HS05 Apex Microtechnology 1: ₹12,365.74 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	₹12,365.74 ₹11,488.69 ₹10,721.50 ₹10,339.34 View ₹9,961.00 Quote	Min.: 1 Mult.: 1
Heat Sinks Hat Section Heat Sink for TO-3, Low Profile, Horizontal, 7 Degree C/W, Black 506003B00000G Aavid 1: ₹104.14 Non-Stocked Lead-Time 4 Weeks	Mfr. Part No. 506003B00000G Mouser Part No 532-506003B00000G	Aavid	Heat Sinks Hat Section Heat Sink for TO-3, Low Profile, Horizontal, 7 Degree C/W, Black	Datasheet	Non-Stocked Lead-Time 4 Weeks	₹104.14 ₹91.72 ₹89.33 ₹86.85 View ₹82.07 ₹77.39 ₹74.62 ₹71.85 ₹66.02	Min.: 1 Mult.: 1
Heat Sinks Channel Style Heat Sink for TO-3, Base Only 520329B00000G Aavid 25,000: ₹63.25 Non-Stocked Lead-Time 8 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 8 Weeks	₹63.25	Min.: 25,000 Mult.: 500
Thermal Interface Products ulTIMiFlux Dielectric Phase Change Thermal Material, TO-3 Pad, 4 Pin CD-02-05-3-4 Wakefield Thermal 1,000: ₹150.95 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 about Wakefield Thermal wakefield vette ultimiflux thermal materials	Datasheet	Non-Stocked Lead-Time 8 Weeks	₹150.95 ₹138.53	Min.: 1,000 Mult.: 500
Thermal Interface Products Insulator 110500F00000G Aavid 10,000: ₹203.50 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	₹203.50	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: ₹5,212.66 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	₹5,212.66 View Quote	Min.: 100 Mult.: 50
Heat Sinks Mounting Kit with Thermalfilm Insulator for TO-3 4804 REV D-G Aavid 2,000: ₹570.37 Non-Stocked Lead-Time 13 Weeks	Mfr. Part No. 4804 REV D-G Mouser Part No 532-4804G	Aavid	Heat Sinks Mounting Kit with Thermalfilm Insulator for TO-3	Datasheet	Non-Stocked Lead-Time 13 Weeks	₹570.37	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: ₹581.84 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	₹581.84 ₹518.78 ₹495.85 ₹473.88 View ₹452.86 ₹428.02 ₹414.64	Min.: 1 Mult.: 1

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