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Ohmite Heatsinks
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Ohmite Manufacturing Company
has been a leading provider of resistors for over 80 years and now introduces
heatsinks for resistors and semiconductor devices in package sizes TO-126TO-263, TO-268, TO-220, TO-247, and more!
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NEW! C Series Heatsinks
Ohmite introduces the C Series Heatsinks. This series offers high performance, low cost and is a compact heat sink with an integrated camming clip system.This powerful heat sink provides tool and fixture free assembly operation, largest surface areas and smallest space occupation. The Ohmite C Series Heatsinks are the ideal type of heat sink for high power density and small size (1U or 2U) electronic packaging with forced convention cooling, such as semiconductors and resistors.
Part #
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Package Types Supported
| Surface Area
(in2/mm2)
| Description | Weight
(oz/g)
| Length
(mm)
| | C126-025-1VE | TO-126
| 10.2/6,559 | Degreased
| 0.45/12.7 | 25 | | C126-040-2VE | 16.3/10,495 | Degreased | 0.72/20.3 | 40 | | C126-025-1AE | 20.4/13,119 | Black Anodized
| 0.90/25.4 | 50 | | C126-040-2AE | 30.6/21,655 | Black Anodized
| 1.35/38.1 | 75 | | C247-025-1VE |
TO-247
| 11/7,312 | Degreased
| 0.5/15 | 25 | | C247-025-1AE | 11/7,312 | Black Anodized
| 0.5/15 | 25 | | C247-050-2VE | 23/14,858 | Degreased | 1.1/31 | 50 | | C247-050-2AE | 23/14,858 | Black Anonized
| 1.1/31 | 50 | | C247-075-3VE | 34/21,655 | Degreased | 1.6/45 | 75 | | C247-075-3AE | 34/21,655 | Black Anondized
| 1.6/45 | 75 | C220-025-1VE
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TO-220
| 11/7,312 | Degreased | 0.5/15 | 25 | | C220-025-1AE | 11/7,312 | Black Anodized
| 0.5/15 | 25 | C220-050-2VE
| 23/14,858 | Degreased | 1.1/31 | 50 | C220-050-2AE
| 23/14,858 | Black Anodized
| 1.1/31 | 50 | C220-075-3VE
| 34/21,655 | Degreased | 1.6/45 | 75 | C220-075-3AE
| 34/21,655 | Black Anodized
| 1.6/45 | 75 | C264-030-1VE
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TO-264
| 13/8,774 | Degreased | 0.9/19 | 30 | | C264-030-1AE | 13/8,774 | Black Anodized
| 0.7/19 | 30 | C264-058-2VE
| 25/16,963 | Degreased | 1.35/37 | 58 | C264-058-2AE
| 25/16,963 | Black Anodized
| 1.35/37 | 58 | C264-085-3VE
| 37/24,861 | Degreased | 1.97/54 | 85 | C264-085-3AE
| 37/24,861 | Black Anodized
| 1.97/54 | 85 |
S Series LED Heatsinks
Ohmite S Series LED Heatsinks are low cost and easy assembly heat sinks for "Star" LED packages supplied by OSRAM and others. See OSRAM IR OSTAR LEDs. This simple heat sink can hold LED modules and can be mounted simply with some thread forming screws. They have two types of surface finish and can be used in either natural (free) or forced convection cooling applications.
| Part#
| Specs | Height
(in/mm)
| Thermal Resistance (ºC/W)
Free Convection / Forced Convection
| | SV-LED-113E | Degreased | 0.50 / 12.7
| 6.67 / 4.33
| | SA-LED-113E | Black Anodized
| 0.50 / 12.7 | 5.33 / 4.33
| | SV-LED-125E | Degreased | 1.00 / 25.4
| 5.33 / 2.88
| | SA-LED-125E | Black Anodized | 1.00 / 25.4 | 4.27 / 2.88
| | SV-LED-151E | Degreased | 2.00 / 50.8
| 4.00 / 1.89
| | SA-LED-151E | Black Anodized | 2.00 / 50.8 | 3.20 / 1.89
| | SV-LED-176E | Degreased | 3.00 / 76.2
| 3.11 / 1.55
| | SA-LED-176E | Black Anodized | 3.00 / 76.2 | 2.49 / 1.55
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D Series Heatsinks
Ohmite D Series Heatsinks
provide an innovative solution for SMT compatible semiconductors and resistors. The unique design (Patent Pending) combines tin plated, solderable rods with an aluminum extruded heat sink body. These rods (or "rollers") are mated mechanically to the heatsink by forging to reduce the thermal resistance between the heatsink body and the solderable feet.
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Part#
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Package Types Supported
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Specs
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Ohmite Resistor Series Supported
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TO-263
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BLK ANODIZED
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TDH35
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TO-263
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BLK ANODIZED
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TO-268
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BLK ANODIZED
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N/A
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TO-268
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BLK ANODIZED
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TO-263
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DEGREASED
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TDH35 |
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TO-263
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DEGREASED
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TO-268
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DEGREASED
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N/A |
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TO-268
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DEGREASED
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E Series Heatsinks
Ohmite E Series Heatsinks
features vertical through-hole PCB mounting with three 0.142 in. diameter mounting holes.
Available in heights of 1.5", 2.0", and 2.5", the heatsinks are aluminum 6063-T5 or equivalent and solder feet are tin plated brass.
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Part#
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Package Types Supported
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Specs
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Ohmite Resistor Series Supported
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TO-220
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BLK ANODIZED
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TAH20
TBH25
TCH35
TK/TN
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TO-220
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BLK ANODIZED
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TO-220
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BLK ANODIZED
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TO-220
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DEGREASED
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TO-220
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DEGREASED
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TO-220
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DEGREASED
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F and R Series Heatsinks
Ohmite F and R Series Heatsinks
are vertical mountable with solderable pins and are composed of 6063-T5 aluminum.
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Part#
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Package Types Supported
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Specs
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Ohmite Resistor Series Supported
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TO-220
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BLK ANODIZED
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TAH20
TBH25
TCH35
TK/TN
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TO-220
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BLK ANODIZED
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TO-220
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BLK ANODIZED
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TO-220
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BLK ANODIZED
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TO-220, TO- 218, TO-247
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BLK ANODIZED
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TAH20
TBH25
TCH35
TK/TN
TEH70
TEH100
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TO-220, TO- 218, TO-247
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BLK ANODIZED
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TO-220, TO- 218, TO-247
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BLK ANODIZED
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TO-220, TO- 218, TO-247
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BLK ANODIZED
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R2 Series Heatsinks
Ohmite R2 Series Heatsinks
attach either a TO-220 or TO-247 package. Part #
| Surface Area
| Description
| Weight
| Thermal Resistance
| | R2V-CT2-38E | 21/13.579 | Aluminum Alloy
| 5.9/26 | 9.8 | | R2A-CT2-38E | 21/13.579
| Aluminum Alloy | 5.9/26 | 8.6 | | R2V-CT4-38E | 21/13.579 | Aluminum Alloy | 6.4/29 | 9.8 | | R2A-CT4-38E | 21/13.579 | Aluminum Alloy | 6.4/29 | 8.6 |
W Series Heatsinks
Ohmite W Series Heatsinks
feature a unique design (patent pending) that combines a tin plated, solderable, integral spring clip with an extruded aluminum heat sink body for an all-in-one solution to through-hole mounting of TO-220 or TO-247 packages. These self-aligning heat sinks feature solderable feet and an integrated clip with 13.2 (lbf) of force on the center of the device to enhance thermal performance.
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Part#
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Package Types Supported
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Specs
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Ohmite Resistor Series Supported
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TO-220
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BLK ANODIZED
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TBH25,
TCH35, TAH20, TK/TN
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TO-247
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BLK ANODIZED
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TEH70,
TEH100
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TO-220
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DEGREASED
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TBH25,
TCH35
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TO-247
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DEGREASED
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TBH25,
TCH35, TAH20, TK/TN
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M Series Heatsinks
Ohmite M Series Heatsinks
are patented (Pat. No. 7,151,669), high performance, low cost, configurable, scalable and compact heat sinks with matrix clip system. These powerful heat sinks provide the easiest assembly, largest surface area and smallest footprint. It is the ideal type of heat sink for high power density and small size (1U or 2U) electronic packaging with forced convection cooling.
Now available in bigger size, the -302-55E.
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Part#
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Package Types Supported
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Specs
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Ohmite Resistor Series Supported
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NEW! MA-302-55E
| TO-247, TO-264 | Black Anodized | TEH70,
TEH100
, TFH85 | NEW! MV-302-55E
| TO-247, TO-264 | Degreased |
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TO-247, TO-264
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Black Anodized
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TO-247, TO-264
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Degreased
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