Printed circuit board materials

Leiterplatten-Material Hersteller

Various requirements for printed circuit boards make the use of different circuit board substrates necessary. 

Whereas for many standard applications the classical FR4 material is sufficient, possibly in high Tg version (for improved thermo-mechanical properties), for other areas (such as high frequencies) alternate materials are absolutely required.

The following information is intended as a abstract summary of all available material types and their fundamental properties, to make it easier for you to make a selection according to the required field of application.

The standard values of the processed materials can be found in following PDFs:

Material samples of the company Rogers can directly be requested here:
http://rogerscorp.force.com/samples/samples_public

On request, you can order circuit boards with EN 45545-2: 2013 certified material (fire protection requirements for rail vehicles) eg.g. from Isola: EN45545-2: 2013 Information.

Please note: The selected materials may be replaced by technically equivalent or similar products, according to available stocks on hand.

Materials for rigid circuit boards

Material for rigid PCBsPCB TgTgPCB CTE zCTE-zPCB dielectric constant?rPCB Dk Loss TangentDk Loss TangentPCB electric strenghtElectric strengthPCB surface resistivitySurface resistivityPCB tracing resistanceCTIPCB Td valueTd valuePCB peel strengthPeel strength
Material for rigid PCBs PCB TgTg°CPCB CTE zCTE-zppm/°CPCB dielectric constant?r@1GHzPCB Dk Loss TangentDk Loss Tangent@1GHzPCB electric strenghtElectric strengthKV/mmPCB surface resistivitySurface resistivityMOPCB tracing resistanceCTIPLCPCB Td valueTd value°CPCB peel strengthPeel strengthN/mm
Material for rigid PCBsISOLA Duraver DE104
Standard FR4
PCB TgTg135°PCB CTE zCTE-z70PCB dielectric constant?r4,4PCB Dk Loss TangentDk Loss Tangent0,020PCB electric strenghtElectric strength54PCB surface resistivitySurface resistivity1,0 x 10^6PCB tracing resistanceCTI2PCB Td valueTd value315°PCB peel strengthPeel strength1,6
Material for rigid PCBsShengyi S1141
FR4 alternative
PCB TgTg140°PCB CTE zCTE-z65PCB dielectric constant?r4,6*PCB Dk Loss TangentDk Loss Tangent0,015*PCB electric strenghtElectric strength60PCB surface resistivitySurface resistivity5,4 x 10^7PCB tracing resistanceCTI3PCB Td valueTd value310°PCB peel strengthPeel strength1,8
Material for rigid PCBsISOLA Duraver DE104 KF
FR4 tracking resistant
PCB TgTg135°PCB CTE zCTE-z45PCB dielectric constant?r4,6 -
4,9
PCB Dk Loss TangentDk Loss Tangent0,020*PCB electric strenghtElectric strength39PCB surface resistivitySurface resistivity1,0 x 10^6PCB tracing resistanceCTI1PCB Td valueTd value315°PCB peel strengthPeel strength1,6
Material for rigid PCBsISOLA DE156
FR4 halogen-free
PCB TgTg155°PCB CTE zCTE-z45PCB dielectric constant?r4,0PCB Dk Loss TangentDk Loss Tangent0,016PCB electric strenghtElectric strength36PCB surface resistivitySurface resistivity4,0 x 10^6PCB tracing resistanceCTI-PCB Td valueTd value390°PCB peel strengthPeel strength1,4
Material for rigid PCBsISOLA IS400
FR4 MidTg
PCB TgTg150°PCB CTE zCTE-z50PCB dielectric constant?r4,0**PCB Dk Loss TangentDk Loss Tangent0,020PCB electric strenghtElectric strength48PCB surface resistivitySurface resistivity3,0 x 10^6PCB tracing resistanceCTI3PCB Td valueTd value330°PCB peel strengthPeel strength1,4
Material for rigid PCBsITEQ IT-158
FR4 MidTg alternative
PCB TgTg155°PCB CTE zCTE-z60PCB dielectric constant?r4,3PCB Dk Loss TangentDk Loss Tangent0,016PCB electric strenghtElectric strength60PCB surface resistivitySurface resistivity1,0 x 10^10PCB tracing resistanceCTI-PCB Td valueTd value345°PCB peel strengthPeel strength1,7
Material for rigid PCBsITEQ IT-180A
FR4 HTg
PCB TgTg175°PCB CTE zCTE-z45PCB dielectric constant?r4,4PCB Dk Loss TangentDk Loss Tangent0,015PCB electric strenghtElectric strength45PCB surface resistivitySurface resistivity3,0 x 10^10PCB tracing resistanceCTI-PCB Td valueTd value345°PCB peel strengthPeel strength1,4
Material for rigid PCBsShengyi S1000-2
FR4 HTg alternative
PCB TgTg180°PCB CTE zCTE-z45PCB dielectric constant?r4,8*PCB Dk Loss TangentDk Loss Tangent0,013*PCB electric strenghtElectric strength63PCB surface resistivitySurface resistivity7,9 x 10^7PCB tracing resistanceCTI3PCB Td valueTd value345°PCB peel strengthPeel strength1,4
Material for rigid PCBsISOLA IS410
FR4 HTg, CAF-Enhanced
PCB TgTg180°PCB CTE zCTE-z55PCB dielectric constant?r4,0PCB Dk Loss TangentDk Loss Tangent0,019PCB electric strenghtElectric strength44PCB surface resistivitySurface resistivity8,0 x 10^6PCB tracing resistanceCTI3PCB Td valueTd value350°PCB peel strengthPeel strength1,2
Material for rigid PCBsISOLA IS420
FR4 HTg, CAF-Enhanced alt.
PCB TgTg170°PCB CTE zCTE-z45PCB dielectric constant?r4,0PCB Dk Loss TangentDk Loss Tangent0,016PCB electric strenghtElectric strength54PCB surface resistivitySurface resistivity3,0 x 10^6PCB tracing resistanceCTI3PCB Td valueTd value350°PCB peel strengthPeel strength1,3

* at 1MHz, ** at 100MHz

Unless otherwise noted, the CTI (Comparative Tracking Index) which indicates the tracking resistance, is PLC3 (175V - 250V) for rigid PCBs. On request, we are also able to produce PCBs with PLC 2 (> 250V), PLC 1 (> 400V) or PLC 0 (> 600V). See Overview of CTI / PLC.

Materials for flexible circuit boards

Material for flexible PCBsPCB recommended operating temperatureMax. recommended operating temperatureFlexible circuit copper typeCopper typePCB Glass transition temperature TgGlass transition temperature TgPCB dielectric constantεrPCB CTE-zCTE-zPCB electric strenghtElectric strenghtPCB surface resistivitySurface resistivityPCB peel strengthPeel strength
Material for flexible PCBs PCB recommended operating temperatureMax. recommended operating temperature°CFlexible circuit copper typeCopper type*PCB Glass transition temperature TgGlass transition temperature Tg°CPCB dielectric constantεr@1MHzPCB CTE-zCTE-zppm/°CPCB electric strenghtElectric strenghtKV/mmPCB surface resistivitySurface resistivityPCB peel strengthPeel strengthN/mm
Material for flexible PCBsPolyimide + AdhesivePCB recommended operating temperatureMax. recommended operating temperature Flexible circuit copper typeCopper type PCB Glass transition temperature TgGlass transition temperature Tg PCB dielectric constantεr PCB CTE-zCTE-z PCB electric strenghtElectric strenght PCB surface resistivitySurface resistivity PCB peel strengthPeel strength 
Material for flexible PCBsShengyi SF305PCB recommended operating temperatureMax. recommended operating temperature105°Flexible circuit copper typeCopper typeRAPCB Glass transition temperature TgGlass transition temperature Tg-PCB dielectric constantεr3,6PCB CTE-zCTE-z-PCB electric strenghtElectric strenght21PCB surface resistivitySurface resistivity1 x 10^5PCB peel strengthPeel strength1,1
Material for flexible PCBsPolyimide AdhesivelessPCB recommended operating temperatureMax. recommended operating temperature Flexible circuit copper typeCopper type PCB Glass transition temperature TgGlass transition temperature Tg PCB dielectric constantεr PCB CTE-zCTE-z PCB electric strenghtElectric strenght PCB surface resistivitySurface resistivity PCB peel strengthPeel strength 
Material for flexible PCBsDuPont Pyralux APPCB recommended operating temperatureMax. recommended operating temperature180°Flexible circuit copper typeCopper typeRAPCB Glass transition temperature TgGlass transition temperature Tg220PCB dielectric constantεr3,4PCB CTE-zCTE-z25PCB electric strenghtElectric strenght256PCB surface resistivitySurface resistivity1 x 10^10PCB peel strengthPeel strength1,8
Material for flexible PCBsPanasonic RF775PCB recommended operating temperatureMax. recommended operating temperature130°Flexible circuit copper typeCopper typeEDPCB Glass transition temperature TgGlass transition temperature Tg343PCB dielectric constantεr3,2PCB CTE-zCTE-z-PCB electric strenghtElectric strenght276PCB surface resistivitySurface resistivity1 x 10^8PCB peel strengthPeel strength1,7
Material for flexible PCBsThinflex W-05050PCB recommended operating temperatureMax. recommended operating temperature105°Flexible circuit copper typeCopper typeEDPCB Glass transition temperature TgGlass transition temperature Tg350PCB dielectric constantεr3,3PCB CTE-zCTE-z24PCB electric strenghtElectric strenght216PCB surface resistivitySurface resistivity1 x 10^5PCB peel strengthPeel strength0,6
Material for flexible PCBsPI CoverlayPCB recommended operating temperatureMax. recommended operating temperature Flexible circuit copper typeCopper type PCB Glass transition temperature TgGlass transition temperature Tg PCB dielectric constantεr PCB CTE-zCTE-z PCB electric strenghtElectric strenght PCB surface resistivitySurface resistivity PCB peel strengthPeel strength 
Material for flexible PCBsShengyi SF305CPCB recommended operating temperatureMax. recommended operating temperature105°Flexible circuit copper typeCopper type-PCB Glass transition temperature TgGlass transition temperature Tg-PCB dielectric constantεr-PCB CTE-zCTE-z-PCB electric strenghtElectric strenght-PCB surface resistivitySurface resistivity3 x 10^6PCB peel strengthPeel strength-
Material for flexible PCBsDuPont Pyralux FRPCB recommended operating temperatureMax. recommended operating temperature180°Flexible circuit copper typeCopper type-PCB Glass transition temperature TgGlass transition temperature Tg-PCB dielectric constantεr3,5PCB CTE-zCTE-z-PCB electric strenghtElectric strenght138PCB surface resistivitySurface resistivity1 x 10^7PCB peel strengthPeel strength-
Material for flexible PCBsAdhesive tapePCB recommended operating temperatureMax. recommended operating temperature Flexible circuit copper typeCopper type PCB Glass transition temperature TgGlass transition temperature Tg PCB dielectric constantεr PCB CTE-zCTE-z PCB electric strenghtElectric strenght PCB surface resistivitySurface resistivity PCB peel strengthPeel strength 
Material for flexible PCBs3M 9077PCB recommended operating temperatureMax. recommended operating temperature150°Flexible circuit copper typeCopper type-PCB Glass transition temperature TgGlass transition temperature Tg-PCB dielectric constantεr-PCB CTE-zCTE-z-PCB electric strenghtElectric strenght-PCB surface resistivitySurface resistivity-PCB peel strengthPeel strength-

* RA = Rolled copper, suitable for dynamic, flexible applications; ED = Electrolytically deposited copper , only suited for stable and semi-dynamic applications (see Design-Aid Flex boards)

Materials for metal core boards

1 layer

Material for metal core boards 1 LayerIMS Thermal conductivityThermal conductivityPCB Thermal resistanceThermal resistancePCB surface resistivitySurface resistivityPCB Dielectric TgDielectric glass transitionDielectric Breakdown (AC)Dielectric Breakdown (AC)*PCB tracing resistanceCTI
Material for metal core boards 1 Layer IMS Thermal conductivityThermal conductivityW/mKPCB Thermal resistanceThermal resistanceK/WPCB surface resistivitySurface resistivityPCB Dielectric TgDielectric glass transition°CDielectric Breakdown (AC)Dielectric Breakdown (AC)*kVPCB tracing resistanceCTIPLC
Material for metal core boards 1 LayerTC-Lam 2.0IMS Thermal conductivityThermal conductivity2.0PCB Thermal resistanceThermal resistance0.50PCB surface resistivitySurface resistivity10^7PCB Dielectric TgDielectric glass transition100Dielectric Breakdown (AC)Dielectric Breakdown (AC)*5.0PCB tracing resistanceCTI0
Material for metal core boards 1 LayerHA50 (3)IMS Thermal conductivityThermal conductivity2.2PCB Thermal resistanceThermal resistance0.41PCB surface resistivitySurface resistivity10^6PCB Dielectric TgDielectric glass transition120Dielectric Breakdown (AC)Dielectric Breakdown (AC)*4.3PCB tracing resistanceCTI0
Material for metal core boards 1 LayerAL-200IMS Thermal conductivityThermal conductivity2.0PCB Thermal resistanceThermal resistance0.35PCB surface resistivitySurface resistivity10^8PCB Dielectric TgDielectric glass transition-Dielectric Breakdown (AC)Dielectric Breakdown (AC)*3.5PCB tracing resistanceCTI0
Material for metal core boards 1 LayerAL-300IMS Thermal conductivityThermal conductivity3.0PCB Thermal resistanceThermal resistance0.30PCB surface resistivitySurface resistivity10^8PCB Dielectric TgDielectric glass transition-Dielectric Breakdown (AC)Dielectric Breakdown (AC)*3.5PCB tracing resistanceCTI0
Material for metal core boards 1 LayerVentec VT-4B3
Ceramic Filled
IMS Thermal conductivityThermal conductivity3.0PCB Thermal resistanceThermal resistance-PCB surface resistivitySurface resistivity5 x 10^8PCB Dielectric TgDielectric glass transition130Dielectric Breakdown (AC)Dielectric Breakdown (AC)*8.0PCB tracing resistanceCTI0
Material for metal core boards 1 LayerVentec VT-4B4
Ceramic Filled
IMS Thermal conductivityThermal conductivity4.2PCB Thermal resistanceThermal resistance-PCB surface resistivitySurface resistivity2 x 10^7PCB Dielectric TgDielectric glass transition120Dielectric Breakdown (AC)Dielectric Breakdown (AC)*8.0PCB tracing resistanceCTI0
Material for metal core boards 1 LayerVentec VT-4B7
Ceramic Filled
IMS Thermal conductivityThermal conductivity7.0PCB Thermal resistanceThermal resistance-PCB surface resistivitySurface resistivity2 x 10^7PCB Dielectric TgDielectric glass transition100Dielectric Breakdown (AC)Dielectric Breakdown (AC)*8.0PCB tracing resistanceCTI0

Examples for 100μm dielectric

2 layers (plated-through)

Material for metal core boards 2 Layers (plated-through)IMS Thermal conductivityThermal conductivityPCB Thermal resistanceThermal resistancePCB surface resistivitySurface resistivityPCB Dielectric TgDielectric glass transitionDielectric Breakdown (AC)Dielectric Breakdown (AC)*PCB tracing resistanceCTI
Material for metal core boards 2 Layers (plated-through) IMS Thermal conductivityThermal conductivityW/mKPCB Thermal resistanceThermal resistanceK/WPCB surface resistivitySurface resistivityPCB Dielectric TgDielectric glass transition°CDielectric Breakdown (AC)Dielectric Breakdown (AC)*kVPCB tracing resistanceCTIPLC
Material for metal core boards 2 Layers (plated-through)Ventec VT-4A2IMS Thermal conductivityThermal conductivity2.2PCB Thermal resistanceThermal resistance-PCB surface resistivitySurface resistivity2 x 10^7PCB Dielectric TgDielectric glass transition130Dielectric Breakdown (AC)Dielectric Breakdown (AC)*7.5PCB tracing resistanceCTI0
Material for metal core boards 2 Layers (plated-through)Ventec VT-4B3
Ceramic Filled
IMS Thermal conductivityThermal conductivity3.0PCB Thermal resistanceThermal resistance-PCB surface resistivitySurface resistivity5 x 10^8PCB Dielectric TgDielectric glass transition130Dielectric Breakdown (AC)Dielectric Breakdown (AC)*8.0PCB tracing resistanceCTI0

* Examples for 100μm dielectric or 80μm for CCAF material

Material for high frequency boards

Material for high frequency boardsPCB order shareOrder sharePCB dielectric constant?rPCB Dk Loss TangentDk Loss TangentPCB TgTgPCB Td valueTd valuePCB Thermal conductivityThermal conductivityPCB CTE-zCTE-zPCB electric strenghtElectric strenghtPCB surface resistivitySurface resistivityPCB peel strengthPeel strength
Material for high frequency boards PCB order shareOrder share PCB dielectric constant?r@10GHzPCB Dk Loss TangentDk Loss Tangent@10GHzPCB TgTg°CPCB Td valueTd value°CPCB Thermal conductivityThermal conductivityW/m*KPCB CTE-zCTE-zppm/°CPCB electric strenghtElectric strenghtkV/mmPCB surface resistivitySurface resistivityMOPCB peel strengthPeel strengthN/mm
Material for high frequency boardsRogers 4350B
HF material
PCB order shareOrder share+++PCB dielectric constant?r3,5PCB Dk Loss TangentDk Loss Tangent0,0037PCB TgTg280°PCB Td valueTd value390°PCB Thermal conductivityThermal conductivity0,69PCB CTE-zCTE-z32PCB electric strenghtElectric strenght31PCB surface resistivitySurface resistivity5,7 x 10^9PCB peel strengthPeel strength0,9
Material for high frequency boardsRogers 4003C
HF material
PCB order shareOrder share++PCB dielectric constant?r3,4PCB Dk Loss TangentDk Loss Tangent0,0027PCB TgTg280°PCB Td valueTd value425°PCB Thermal conductivityThermal conductivity0,71PCB CTE-zCTE-z46PCB electric strenghtElectric strenght31PCB surface resistivitySurface resistivity4,2 x 10^9PCB peel strengthPeel strength1,1
Material for high frequency boardsPanasonic Megtron6
HF material
PCB order shareOrder share+PCB dielectric constant?r3,6PCB Dk Loss TangentDk Loss Tangent0,004PCB TgTg185°PCB Td valueTd value410°PCB Thermal conductivityThermal conductivity-PCB CTE-zCTE-z45PCB electric strenghtElectric strenght-PCB surface resistivitySurface resistivity1 x 10^8PCB peel strengthPeel strength0,8
Material for high frequency boardsRogers RO3003
PTFE ceramic-filled
PCB order shareOrder share+PCB dielectric constant?r3PCB Dk Loss TangentDk Loss Tangent0,0013PCB TgTg-PCB Td valueTd value500°PCB Thermal conductivityThermal conductivity0,5PCB CTE-zCTE-z25PCB electric strenghtElectric strenght-PCB surface resistivitySurface resistivity1 x 10^7PCB peel strengthPeel strength2,2
Material for high frequency boardsRogers RO3006
PTFE ceramic-filled
PCB order shareOrder shareoPCB dielectric constant?r6,2PCB Dk Loss TangentDk Loss Tangent0,002PCB TgTg-PCB Td valueTd value500°PCB Thermal conductivityThermal conductivity0,79PCB CTE-zCTE-z24PCB electric strenghtElectric strenght-PCB surface resistivitySurface resistivity1 x 10^5PCB peel strengthPeel strength1,2
Material for high frequency boardsRogers RO3010
PTFE ceramic-filled
PCB order shareOrder shareoPCB dielectric constant?r10PCB Dk Loss TangentDk Loss Tangent0,0022PCB TgTg-PCB Td valueTd value500°PCB Thermal conductivityThermal conductivity0,95PCB CTE-zCTE-z16PCB electric strenghtElectric strenght-PCB surface resistivitySurface resistivity1 x 10^5PCB peel strengthPeel strength1,6
Material for high frequency boardsTaconic RF-35
Ceramic
PCB order shareOrder shareoPCB dielectric constant?r3,5*PCB Dk Loss TangentDk Loss Tangent0,0018*PCB TgTg315°PCB Td valueTd value-PCB Thermal conductivityThermal conductivity0,24PCB CTE-zCTE-z64PCB electric strenghtElectric strenght-PCB surface resistivitySurface resistivity1,5 x 10^8PCB peel strengthPeel strength1,8
Material for high frequency boardsTaconic TLX
PTFE
PCB order shareOrder shareoPCB dielectric constant?r2,5PCB Dk Loss TangentDk Loss Tangent0,0019PCB TgTg-PCB Td valueTd value-PCB Thermal conductivityThermal conductivity0,19PCB CTE-zCTE-z135PCB electric strenghtElectric strenght-PCB surface resistivitySurface resistivity1 x 10^7PCB peel strengthPeel strength2,1
Material for high frequency boardsRogers RO3001
Bonding Film for PTFE
PCB order shareOrder share-PCB dielectric constant?r2,3PCB Dk Loss TangentDk Loss Tangent0,003PCB TgTg160°PCB Td valueTd value-PCB Thermal conductivityThermal conductivity0,22PCB CTE-zCTE-z-PCB electric strenghtElectric strenght98PCB surface resistivitySurface resistivity1 x 10^9PCB peel strengthPeel strength2,1
Material for high frequency boardsTaconic TLC
PTFE
PCB order shareOrder share-PCB dielectric constant?r3,2PCB Dk Loss TangentDk Loss Tangent-PCB TgTg-PCB Td valueTd value-PCB Thermal conductivityThermal conductivity0,24PCB CTE-zCTE-z70PCB electric strenghtElectric strenght-PCB surface resistivitySurface resistivity1 x 10^7PCB peel strengthPeel strength2,1

* @1,9GHz

Material for high-Tg circuit boards (selection)

Material for High-Tg boardsPCB TgTgPCB CTE-zCTE-zPCB dielectric constant?rPCB electric strenghtElectric strenghtPCB surface resistivitySurface resistivityPCB tracing resistanceCTIIMS Thermal conductivityThermal conductivityPCB Td valueTd valuePCB peel strengthPeel strength
Material for High-Tg boards PCB TgTg°CPCB CTE-zCTE-zppm/°CPCB dielectric constant?r@1GHzPCB electric strenghtElectric strenghtKV/mmPCB surface resistivitySurface resistivityMOPCB tracing resistanceCTIPLCIMS Thermal conductivityThermal conductivityW/m*KPCB Td valueTd value°CPCB peel strengthPeel strengthN/mm
Material for High-Tg boardsISOLA IS410
FR4 HTg, CAF-Enhanced
PCB TgTg180°PCB CTE-zCTE-z55PCB dielectric constant?r4,0PCB electric strenghtElectric strenght44PCB surface resistivitySurface resistivity8,0 x 10^6PCB tracing resistanceCTI3IMS Thermal conductivityThermal conductivity0,5PCB Td valueTd value350°PCB peel strengthPeel strength1,2
Material for High-Tg boardsISOLA IS420
FR4 HTg, CAF-Enhanced
PCB TgTg170°PCB CTE-zCTE-z45PCB dielectric constant?r4,0PCB electric strenghtElectric strenght54PCB surface resistivitySurface resistivity3,0 x 10^6PCB tracing resistanceCTI3IMS Thermal conductivityThermal conductivity0,4PCB Td valueTd value350°PCB peel strengthPeel strength1,3
Material for High-Tg boardsITEQ IT-180A
FR4 HTg
PCB TgTg175°PCB CTE-zCTE-z45PCB dielectric constant?r4,4PCB electric strenghtElectric strenght45PCB surface resistivitySurface resistivity3,0 x 10^10PCB tracing resistanceCTI-IMS Thermal conductivityThermal conductivity-PCB Td valueTd value345°PCB peel strengthPeel strength1,4
Material for High-Tg boardsShengyi S1000-2
FR4 HTg
PCB TgTg180°PCB CTE-zCTE-z45PCB dielectric constant?r4,8*PCB electric strenghtElectric strenght63PCB surface resistivitySurface resistivity7,9 x 10^7PCB tracing resistanceCTI3IMS Thermal conductivityThermal conductivity-PCB Td valueTd value345°PCB peel strengthPeel strength1,4
Material for High-Tg boardsARLON 85N
Polyimid HTg
PCB TgTg250°PCB CTE-zCTE-z55PCB dielectric constant?r4,20*PCB electric strenghtElectric strenght57PCB surface resistivitySurface resistivity1,6 x 10^9PCB tracing resistanceCTI-IMS Thermal conductivityThermal conductivity0,2PCB Td valueTd value387°PCB peel strengthPeel strength1,2

* at 1MHz

CAF - Conductive Anodic Filament: an undesirable conducting filament in the substrate of a circuit board