Electromagnetic Wave Absorbing Pad Thermal Conductivity 4W/m-k-NFION

Introduction

The 4.0W/m·K EMI Absorbing Thermal Pad is a multifunctional interface material that combines high thermal conductivity with EMI absorption, making it ideal for thermally and electromagnetically demanding electronic systems. Built with a silicone-based thermally conductive matrix and embedded magnetic fillers, it offers excellent heat transfer and attenuation of high-frequency electromagnetic noise (1GHz+), making it an effective solution for improving system reliability and EMC.

Features

▪ High Thermal Conductivity (4.0W/m·K): Efficiently dissipates heat from high-power components

▪ Excellent EMI Absorption: Targets and absorbs GHz-range RF and EMI signals

▪ Soft and Compressible: Fills surface gaps, reduces contact resistance

▪ Naturally Tacky Surface: Easy to install without additional adhesives

▪ RoHS & UL 94 V-0 Certified: Flame-retardant and environmentally safe

▪ Custom Sizes Available: Supports die-cutting and thickness customization

Application

High-frequency telecom devices (5G RF modules, antenna systems)
Network switches, routers, and optical communication modules
Automotive electronics (mmWave radar, ADAS cameras, ECUs)
Industrial power modules, inverters, and controllers
Medical imaging and diagnostic electronics
High-speed, high-density integrated electronic systems

Specification

Property	Unit	Value	Test Method
Material	—	Silicone Rubber	—
Color	—	Gray-black	—
Thermal Conductivity	W/m·K	4	ASTM D5470
Density	g/cm³	3.2	ASTM D792
Volume Resistivity	Ω·cm	10¹²	ASTM D257
Operating Frequency	GHz	0.01~6	GB/T 32596
Hardness	Shore 00	50	ASTM D2240
Thickness Range	mm	0.5–5	ASTM D374
Operating Temperature	℃	-40~150	IEC 60068-2-14
Flame Rating	—	V0	UL 94
RoHS Compliance	—	Compliant	RoHS
REACH Compliance	—	Compliant	REACH
Halogen-free	—	Compliant	EN14582

Nfion

4.0W/m.k EMI Absorbing Thermal Pad