PyroArk®HCST Series Graphene Heat Spreader

AH Series

RF Absorber

AHG Series

RF Absorber

RFID&NFC series

RF Absorber

HCST Series

Heat Spreader

TG Series

Thermal Interface

EMI Shield

HCST Series Graphene Heat Spreader

The heat spreader/diffusion sheet PyroArk® HCST series has higher thermal conductivity in the X-Y directions than the artificial graphite products (1700-1900W/mk) and is a product with high EMI shielding properties because of Cu substrate.

Unlike graphite products, there is no need to perform pouch processing when performing die cutting, which is a great advantage in product and reduce the manufacturing costs. ‥

High thermal conductivity and shielding properties make it an ideal backing material for film-based OLED displays.

HCST Heat Spreader with Graphene

HCST Series Overview

Overview	MINORU® The composite heat spreader HCST series is a copper foil/graphene-based product with extremely high thermal conductivity in the X and Y directions.
Structure
Characteristic	High shielding property based on copper foil (>90dB@30 MHz to 3 GHz) Comes with high thermal conductivity adhesive ensure good contact with the heat source with strong & stable adhesion. *Since the die cutting process does not require pouch processing, the process is simple.
Application	∗ As a heat spot countermeasure * Prevents discoloration due to LCD display temperature ∗ Replaces BLS etc. as EMI shield + heat dissipation
Specification
Environment	HCST series are halogen-free products.

HCST Series General Characteristics (typical)

Item	Value				Method
Product	HCST04	HCST06*	HCST08*	HCST10*
Infrared emissivity	1.1				ASTM C1371
Thermal Conductivity XY-Axis (W/m.k)	1780	1810	1890	1910	ASTM D5470
Thermal Conductivity Z-axis (W/m.k)	21.5	20.1	19.3	18.2	ASTM D149
Adhesive Strength (N/25mm,180°)	9±1	10.5±1	12±2	13±2	PSTC-1
Adhesive holding power (hours/25mm)	>48				PSTC-7
Volume Resistivity (Ω.cm)	1*10¹³				ASTM D257
Weatherbility 1500Hrs	OK
Shield Property	＞90dB@(30 MHz to 3 GHz)				MIL-STD-285
Operating Temperature (℃)	-40 to 100
Frame retardance	V0				UL94
RoHS, Halogen free	Pass				SGS
*HCST06, 08, 10:We are currently suspending sales of aforementioned items due to raw material availability.

HCST Series Temperature Rise Characteristics

Temperature rise of HCST with respect to room temperature is 27.8℃, artificial graphite is 30.7℃

HCST composite material suppresses 2.9℃ temperature rise compared to artificial graphite

HCST Comparison to Synthetic Graphite

Comparison

Storage period

The storage period is one years from the product production date.

The storage conditions are room temperature (22°C, humidity 50% RH)

packaged in the original package.

This product is designed for consumer equipment.

All items and values described here are measured values by our company and are not guaranteed values.

In addition, we do not guarantee the quality after incorporating your device.

Before using the product, be sure to thoroughly study the purpose and conditions of use,

and be sure to conduct a test at your company for confirmation.

In addition, we do not guarantee industrial property rights such as patents regarding usage and purpose.

All numerical values and data presented in this site are example and not warranted at anyway.

Product drawing and specification sheet always represent the latest product information.

Specification and drawing within this site are just for illustrated purpose, not intended as a product specification whatever.

Information presented herein this site may change without prior notification at anytime.