Phase Change

Thermal Interface Materials

What are Phase Change Materials?

Thermal Interface Phase Change Materials are used to enhance thermal transfer between a hot component and a thermal solution like a heatsink.  This enables the component to run at a lower temperature whereby increase speed and extending life.  Phase Change Materials are used in the most demanding application across many industry segments.  These include consumer electronics, telecom/datacom, automotive electronics, industrial electronics, medical and military/aerospace.

How do Phase Change Materials Work?

The first PCMs melted to a liquid state at temperatures between 50C-60C.  This “phase change” allowed the material to wet the mating surfaces, and flow to a minimum bond line to provide the lowest possible thermal resistance, the best performance.  Today most PCMs do not change state (melt) but soften at operating temperatures in the 50C to 70C range whereby providing the same advantages of wetting and minimum bond line but further provide much better long-term reliability (more resistant to pump out) than earlier materials that truly phase change to liquid.   PCMs are generally used in constant pressure application (with some type of spring loaded heatsink).

Characteristics and Functions:

  • Thermal conductivity range: 1 – 8 W/mK
  • Thickness range: 0.125mm to 0.5mm
  • Compliancy: UL 94V0, RoHs, REACH
  • Easy to use; peel and stick format with top tabbed liners or automatable placement

Laird’s Phase Change Materials

Laird PCMs provide industry leading thermal performance, reliability and easy of use all at competitive prices

Download our Thermal Interface Solutions brochure.

In 2019 we launched fully automated application capabilities for thermal pads and dispensables. You can end manual tasks through automation.

TIM Phase change

Phase Change Series

TPCM SP Primary Image

Tpcm™ 200SP

Tpcm 200SP is a silicone-free screen printable phase change material.
Tpcm 5000 primary image - 2

Tpcm™ 5000

Tpcm™ 5000 is designed to provide the best performance to price available.

Tpcm™ 580

Tpcm™ 580 phase change material is 3.8 W/mK and designed to meet the thermal reliability and price requirements of high-end thermal application.
Thermal Phase Change Material Tpcm 7000

Tpcm™ 7000

With a thermal conductivity of 7.5 W/mK, Tpcm™ 7000 is designed to enhance the cooling of the most rigorous thermal challenges in electronics
THR-DS-Tpcm-780-Main-Image

Tpcm™ 780

Tpcm™ 780 phase change material at 5.5 W/mK, is a high performance phase change TIM, offering low thermal resistance and excellent reliability
Tpcm 780SP

Tpcm™ 780SP

Tpcm™ 780SP phase change material at 5.5 W/mk, is a high performance screen printable phase change material.
Tpcm 900

Tpcm™ 900

Tpcm™ 900 phase change material is a naturally tacky phase change offering reliable thermal performance.
laird-thermal-tpcm-AL-52

Tpcm™ AL52

Tpcm AL52 is a thermally conductive phase change material coated on both sides of aluminum foil.