ENGINEERING REFERENCE · PCB / THAILAND

PCB laminate and surface finish catalogue

Compare electrical and thermal properties by application, see how each laminate affects signal loss along a trace and behaviour in reflow, and add your choice to a quote request for Thai fabricators.

253material & finish recordsResearch edition · May 2026

About the data. Values are research figures for global material brands. Check each value against the manufacturer datasheet, and confirm availability with the fabricator in Thailand.

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Pick the job and the page answers it, then narrows the catalogue to the grades behind the answer.

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Material family

3.1 · FR-4 laminates

Standard and High-Tg FR-4

23 records · every one publishes every column


140(DSC)	310	4.6	0.015	not published	IPC-4101/21
135	305	5.4	0.035	not published	IPC-4101/21
140	311	4.2	0.015	not published	IPC-4101/21
135(DSC)	305	4.4	0.022	55	not published
135	310	4.4	0.020	not published	not published
155(DSC)	348	4.6	0.011	37	IPC-4101/99
155	345	4.6	0.016	40	IPC-4101/99
150(DSC)	340	4.3	0.018	45	not published
150(DSC)	315	not published	not published	~55	not published
148(DSC)	350	4.6	0.012	40	IPC-4101/94
155(DSC)	355	4.5	0.011	40	IPC-4101/128
155	365	4.5	0.015	not published	IPC-4101/21
180(DSC)	340	4.17	0.016	45	IPC-4101/126
180(DSC)	345	4.4	0.013	2.4–2.8% tot	IPC-4101/126
175	>340	4.7	0.017	45	IPC-4101/24, /124, /129
175	312	4.22	0.013	not published	IPC-4101/24
180(DSC/TMA)	355	4.3	0.015	45	IPC-4101/126
180(DSC)	340–350	4.3–4.4	0.018	2.7% tot	IPC-4101/126(QPL)
170–175(TMA)	340–360	4.2–4.4	0.017	35–45	not published
185(DMA)	350	3.5 @10GHz	0.027	2.6% tot	IPC-4101/126
185(DMA)	355	4.49	0.016	not published	not published
200(DMA)	390	4.4	0.010	2.1% tot	IPC-4101/130(QPL)
210(DMA)	390	3.8 @10GHz	0.019	1.8% tot	IPC-4101/130

3.2 · High-speed laminates

High-Speed / Low-Loss Laminates

20 records · every one publishes every column


3.8	0.007	210(DMA)	360°C	No	≤10 Gbps
3.40–3.61	0.003–0.004	210(DMA)	410°C	No	25–56 Gbps
3.30–3.37	0.0017–0.002	210(DMA)	400°C	No	56–112 Gbps
3.13 @14GHz	0.0016 @14GHz	220(DMA)	370°C	Yes	112–224 Gbps
3.08 @14GHz	0.0012 @14GHz	220(DMA)	370°C	Yes	112–224 Gbps
3.45	0.0031	215(DSC)	not published	No	25–56 Gbps
3.02	0.0021	215(DSC)	not published	No	112 Gbps
3.15	0.0017	200(DSC)	>380°C	Yes	112 Gbps
3.10	0.0015	200(DSC)	>380°C	Yes	224 Gbps
2.97	0.0017	200(DSC)	not published	No	77GHz RF
3.59	0.005	175	not published	No	25–40 Gbps
3.24	0.0014	205	not published	Yes	112 Gbps+
3.10	0.0015	200–210	433°C	Yes	112–224 Gbps
3.35	0.0026	205(DMA)	402°C	No	56–112 Gbps
3.28	0.0019	205(DMA)	430°C	No	112–224 Gbps
3.28	0.0025	225(DMA)	~400°C	No	400G/5G
3.28–3.34	0.0016–0.0035	200(DMA)	not published	No	400G+
3.28	0.0016	185(DMA)	not published	No	112G+ AI
3.03	0.0009	190	not published	No	224G+
2.84–3.0	0.0012–0.0015	215(DMA)	420°C	Yes	224G+

3.3 · RF / microwave

RF / Microwave Materials

21 records · every one publishes every column


RO4000	3.48	0.0037	~+50	0.69	5G sub-6GHz, commercial RF
RO4000	3.38	0.0027	~+50	0.71	High-volume RF, filters
RO3000	3.00	0.0010	−3	0.50	77GHz radar, mmWave 5G
RO3000	3.00	0.0013	not published	not published	Next-gen 77/79GHz radar
RO4000	3.48	0.0037	not published	0.66	Outdoor antennas, 5G infra
RT/duroid	2.20	0.0009	not published	0.20	Satellite, military EW, test fixtures
RT/duroid	2.94	0.0012	+12	0.60	Space, phased arrays
TMM	3.27	0.0020	+37	not published	GPS antennas, power amps
TMM	9.80	0.0020	not published	0.76	Alumina replacement, miniaturized circuits
CLTE	2.94	0.0012	−9	not published	mmWave, phase-sensitive apps
AD	2.50	0.0013	not published	not published	Cellular BTS antennas(PIM −159dBc)
AD	2.97	0.0021	not published	not published	BTS antennas, power amps
Astra	3.00	0.0017	Stable −40 to +140°C	not published	77GHz radar, FR-4 process
TLY	2.20	0.0009	not published	not published	77GHz radar, satellite
TSM	3.00	0.0011	not published	not published	mmWave, 5G base stations
RF	3.50	0.0019	not published	not published	Commercial microwave
AD	3.00	0.0014	not published	not published	Telecom power amps
DiClad	2.17	0.0009	not published	not published	Broadband antennas to 90GHz
PTFE/ceramic	3.00	0.0010	not published	not published	77GHz radar(cost-competitive)
Hydrocarbon/ceramic	3.48	0.003	not published	not published	5G sub-6GHz, FR-4 process
Kappa	4.38	0.005	not published	not published	FR-4 replacement for wireless infra

FR-4 laminates · SPECIFICATION

370HR

Isola

Research values · confirm before use

Adds a preference for supplier review. Your board dimensions and other draft details stay in place.

At 25 Gbps down a 10 inch trace, 31% of the signal is left: tight, needs equalisation.

Standard FR-4 leaves about the same, 29%. On this board the laminate is not what decides.

From this grade's own Dk 4.17 and Df 0.016 at 1 GHz, dielectric loss only: no copper roughness, vias or equalisation. A real board is worse; the comparison is what holds.

Tg (°C): 180 (DSC)
Td (°C): 340
Dk @ 1GHz: 4.17
Df @ 1GHz: 0.016
Z-CTE (ppm/°C): 45
IPC-4101: IPC-4101/126
Lead-Free: Yes
Halogen-Free: No

How to read these specifications

Read each value with its unit, frequency and test method. “DSC” and “DMA” are different measurement methods. Where a condition is missing, check the manufacturer datasheet. Compare substitute materials on the full set of properties.

Source & review

PCB Materials Database · May 2026
3.1 Standard and High-Tg FR-4
Table 11 · row 13

Values and citation markers are as given in the source research.

Original citation markers

[9] [11]

Open manufacturer reference ↗

Isola publishes construction-dependent Dk/Df data. The values below are from the supplied research; reconcile the exact construction and test method with the manufacturer before specifying.

Reference page checked 2026-09-14

Material charts

Four charts of the laminates above: dielectric constant against loss, signal loss along a trace, the signal at the far end, and reflow tolerance.

MATERIAL MAP

Loss against dielectric constant.

54 researched laminates that publish both numbers at 10 GHz. Only that frequency is plotted, because loss rises with frequency. Lower loss is to the left.

Point at a material to read its numbers. Dot size follows Tg.