A15959-02

## TflexTM HR400 Series **Thermal Gap Filler** 

## Innovative **Technology** for a **Connected** World 

## MID-PERFORMANCE GAP FILLER WITH 1.8 W/MK 

Tflex™ HR400 is a cost-effective and compliant gap filler thermal interface material with excellent thermal performance and great handling for mass-production applications. 

The low modulus interface pad conforms to component topography, resulting in little stress on the components, mating chassis or parts. The softness relieves mechanical stress from high stack-up tolerance and absorbs shock, resulting in improved device reliability. Tflex™ HR400’s recovery properties for applications requiring material rework result in continued mechanical integrity even after device rework and re-assembly. 

Tflex™ HR400 is naturally tacky on both sides and requires no additional adhesive coating to inhibit thermal performance. The tack is designed to hold the pad in place during assembly and component transport. 

Tflex™ HR400 is electrically insulating, stable from -50ºC thru 160ºC, and meets UL 94V0 flame rating. 

## FEATURES AND BENEFITS 

- Thermal Conductivity 1.8 W/mK 

- Soft and Compliant 

- Available in thicknesses from 0.020” thru 0.400” (0.5mm thru 10.2mm) 

- Naturally tacky for adhesion during assembly and transport 

## APPLICATIONS 

- Cooling components to chassis, frame, or other mating components 

- Memory Modules 

- Home and small office network equipment 

- Mass storage devices 

- Automotive electronics 

- Telecommunication hardware 

- Radios 

- LED solid state lighting 

- Power electronics 

- LCD and PDP flat panel TV 

- Set top boxes 

- Audio and video components 

- IT infrastructure 

- GPS navigation and other portable devices 

## **global solutions: local support TM** 

Americas: +1.800.843.4556 Europe: +49.8031.2460.0 Asia: +86.755.2714.1166 

**Farnell Description : Laird-PN: Tflex HR420 9x9in, thickness = 0.5 mm A15959-02 Tflex HR440 9x9in, thickness = 1.0 mm A15959-04 Tflex HR480 9x9in, thickness = 2.0 mm A15959-08 Tflex HR4160 9x9in, thickness = 4.0 mm A15959-16 Tflex HR4200 9x9in, thickness = 5.0 mm A15959-20** 

CLV-customerservice@lairdtech.com **www.lairdtech.com/thermal** 

## TflexTM HR400 Series **Thermal Gap Filler** 

## Innovative **Technology** for a **Connected** World 

## Tflex[TM] HR400 TYPICAL PROPERTIES 

||Tflex HR400TM|TEST METHOD|
|---|---|---|
|Construction|Ceramic filled<br>silicone elastomer|NA|
|Color|Dark Grey|Visual|
|Thermal Conductivity|1.8 W/mK|ASTM D5470|
|Hardness (Shore 00)|60|ASTM D2240|
|Specific Gravity|1.93|Helium<br>Pyncometer|
|Thickness Range|0.020" - .400"<br>(0.5 - 10.2mm)||
|Thickness Tolerance|±10%||
|UL FlammabilityRating|94 V0|File E180840|
|Temperature Range|-50ºC to 160ºC|See reliability<br>report|
|OutgassingTML|0.32%|ASTM E595|
|OutgassingCVCM|0.09%|ASTM E595|
|Coefficient Thermal<br>Expansion (CTE)|651 ppm/ºC<br>35ºC-108ºC|IPC-TM-650<br>2.4.24|



## STANDARD THICKNESSES 

Standard thickness is 0.020-inch (0.5 mm) through 0.400-inch (10.2 mm) and available in 0.010-inch increments. Please contact Laird Technologies for availability of thicknesses above 0.200-inch. 

## OPTIONS 

Fiberglass is standard in 0.020-inch and 0.030-inch thicknesses to aid in handling and is designated by the suffix “-FG”. Material is standard with both sides tacky; the -DC1 suffix indicates only one side is tacky. 

## MATERIAL NAME AND THICKNESS 

Tflex™ indicates Laird Technologies’ elastomeric thermal gap filler product line. HR4XXX indicates Tflex HR400 product line with thickness in mils (0.001-inches); -DC1 indicates only one side tacky; -FG indicates fiberglass reinforcement. 

Data for design engineer guidance only. Observed performance varies in application. Engineers are reminded to test the material in application. 

THR-DS-Tflex-HR400 0711 

Any information furnished by Laird Technologies, Inc. and its agents is believed to be accurate and reliable. All specifications are subject to change without notice. Responsibility for the use and application of Laird Technologies materials rests with the end user. Laird Technologies makes no warranties as to the fitness, merchantability, suitability or non-infringement of any Laird Technologies materials or products for any specific or general uses. Laird Technologies shall not be liable for incidental or consequential damages of any kind. All Laird Technologies products are sold pursuant to the Laird Technologies’ Terms and Conditions of sale in effect from time to time, a copy of which will be furnished upon request. © Copyright 2011 Laird Technologies, Inc. All Rights Reserved. Laird, Laird Technologies, the Laird Technologies Logo, and other marks are trade marks or registered trade marks of Laird Technolo¬gies, Inc. or an affiliate company thereof. Other product or service names may be the property of third parties. Nothing herein provides a license under any Laird Technologies or any third party intellectual property rights. . Document A15958-00 Rev C, 07/2011. 

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