Ohmite D Series Heatsinks
Increased Surface Areas By 3X
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. Specifically designed for use with the increasingly popular TO–252, TO–263 and TO–268 packages, the D Series gives the user superior thermal performance over the more common stamped aluminum heatsinks. By eliminating the staking joint typically used in stamped heatsinks, the resulting air gap and thermal bottleneck is also eliminated, while surface area for cooling is maximized with the extruded fins of the D Series body.
Features
  • Increased thermal performance up to 30% over bright copper heat sinks from improved radiation of the black finish
  • Increased surface areas by 3x; Increased thermal performance up to 300% over the aluminum stamped heat sinks
  • Unique aluminum extrusion design reduces the heatsink cost versus similar designs utilizing copper
  • Light weight aluminum construction allows faster pick and place assembly reducing the manufacturing cycle time
  • Radius mounted "rollers" are designed for maximizing heat transfer from the component and avoiding the thermal bottleneck seen in stamped and staked heatsinks
Stock No. Mfr.'s Part # Description Availability Price(USD)
70024465 DV-T263-101E HEATSINK FOR TO-263 87 $1.12
70024466 DV-T268-101E HEATSINK FOR TO-268 10 $1.20
70024464 DA-T268-101E HEATSINK FOR TO-268 18 $1.30
70024463 DA-T263-101E HEATSINK FOR TO-263 39 $1.24
 

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