FR406

Array ( [new-design] => Array ( [dynval] => [name] => Recommended for New Design [tip] => [secondary] => [value] => — ) [halogen-free] => Array ( [dynval] => [name] => Halogen Free [tip] => [secondary] => [value] => — ) [glass-transition-temperature-tg-by-dsc] => Array ( [dynval] => dynval_5707ece602022 [name] => Glass Transition Temperature (Tg) by DSC [tip] => [secondary] => Resin Content [value] => 170 ) [dk-permittivity] => Array ( [dynval] => dynval_576242c12fb0e [name] => Dk, Permittivity [tip] => [secondary] => Resin Content [value] => 3.92 ) [decomposition-temperature-td-by-tga-5-weight-loss] => Array ( [dynval] => dynval_5707eda2bb660 [name] => Decomposition Temperature (Td) by TGA @ 5% weight loss [tip] => [secondary] => Resin Content [value] => 300 ) [df-loss-tangent] => Array ( [dynval] => dynval_5762434d99e96 [name] => Df, Loss Tangent [tip] => [secondary] => Resin Content [value] => 0.0172 ) [moisture-absorption] => Array ( [dynval] => dynval_571676e64598b [name] => Moisture Absorption [tip] => [secondary] => Resin Content [value] => 0.2 ) [z-axis-cte] => Array ( [dynval] => dynval_577e93eec466a [name] => Z-Axis CTE [tip] => [secondary] => 50 to 260°C, (Total Expansion) [value] => 3.5 ) [peel-strength] => Array ( [dynval] => dynval_571676e64597f [name] => Peel Strength [tip] => [secondary] => Standard profile copper >>> After thermal stress [value] => 1.60 (9.0) ) [tg] => Array ( [value] => 170°C ) [td] => Array ( [value] => 300°C ) )

FR406

Standard Loss, High Tg Epoxy Laminate and Prepreg

FR406 sets the industry standard for high performance epoxy materials.

Download Data Sheet Contact Us

Thermal Performance	Electrical Performance	Industry Approvals
Tg: 170°C Td: 300°C	Dk: 3.93 Df: 0.0167	IPC-4101 /21 /24 /26 UL - File Number E41625

Thermal Performance

Tg: 170°C
Td: 300°C

Electrical Performance

Dk: 3.93
Df: 0.0167

Industry Approvals

IPC-4101 /21 /24 /26

UL - File Number E41625

This product is engineered to meet the demands of the multilayer printed circuit board industry, while maintaining standard FR-4 processing. FR406 offers improved dimensional control, superior chemical and thermal performance and product consistency.

Attributes

Product Summary ▲

Product Features

Industry Recognition
- UL File Number: E41625
- RoHS Compliant

Processing Advantages
- FR-4 process compatible
- UV blocking and AOI fluorescence
- No post bake after pressing

Production & Manufacturing

Currently manufactured in Asia, North America

Product Availability

Standard Material Offering: Laminate
- 2 to 125 mil (0.05 to 3.2 mm)

Copper Foil Type
- HTE Grade 3
- RTF (Reverse Treat Foil)

Copper Weight
- ½, 1 and 2 oz (18, 35 and 70 µm) available
- Thinner copper foil available

Standard Material Offering: Prepreg
- Tooling of prepreg panels

Glass Fabric Availability
- E-glass
- Square weave glass
- Mechanically spread glass

Typical Values ▼

Property		Typical Value	Units	Test Method
Property		Typical Value	Metric (English)	IPC-TM-650 (or as noted)
Glass Transition Temperature (Tg) by DSC		170	°C	2.4.25C
Decomposition Temperature (Td) by TGA @ 5% weight loss		300	°C	2.4.24.6
Time to Delaminate by TMA (Copper removed)	A. T260 B. T288	10 >2	Minutes	2.4.24.1
Z-Axis CTE	A. Pre-Tg B. Post-Tg C. 50 to 260°C, (Total Expansion)	60 250 3.5	ppm/°C ppm/°C %	2.4.24C
X/Y-Axis CTE	Pre-Tg	13	ppm/°C	2.4.24C
Thermal Conductivity		0.3-0.4	W/m·K	ASTM E1952
Thermal Stress 10 sec @ 288ºC (550.4ºF)	A. Unetched B. Etched	Pass	Pass Visual	2.4.13.1
Dk, Permittivity	A. @ 100 MHz B. @ 1 GHz C. @ 2 GHz D. @ 5 GHz E. @ 10 GHz	4.00 3.95 3.93 3.92 3.92	—	2.5.5.3 2.5.5.9 2.5.5.5 2.5.5.5 2.5.5.5
Df, Loss Tangent	A. @ 100 MHz B. @ 1 GHz C. @ 2 GHz D. @ 5 GHz E. @ 10 GHz	0.0130 0.0161 0.0167 0.0172 0.0172	—	2.5.5.3 2.5.5.9 2.5.5.5 2.5.5.5 2.5.5.5
Volume Resistivity	A. C-96/35/90 B. After moisture resistance C. At elevated temperature	9.0 x 10⁷ — 3.0 x 10⁷	MΩ-cm	2.5.17.1
Surface Resistivity	A. C-96/35/90 B. After moisture resistance C. At elevated temperature	3.0 x 10⁸ — 8.0 x 10⁸	MΩ	2.5.17.1
Dielectric Breakdown		>50	kV	2.5.6B
Arc Resistance		90	Seconds	2.5.1B
Electric Strength (Laminate & laminated prepreg)		44 (1100)	kV/mm (V/mil)	2.5.6.2A
Comparative Tracking Index (CTI)		3 (175-249)	Class (Volts)	UL 746A ASTM D3638
Peel Strength	A. Low profile copper foil and very low profile copper foil all copper foil >17 μm [0.669 mil] B. Standard profile copper 1. After thermal stress 2. At 125ºC (257ºF) 3. After process solutions	1.19 (7.0) 1.60 (9.0) 1.19 (7.0) 1.60 (9.0)	N/mm (lb/inch)	2.4.8C 2.4.8.2A 2.4.8.3 2.4.8.3
Flexural Strength	A. Length direction B. Cross direction	646 (93.7) 539 (78.2)	MPa (kpsi)	2.4.4B
Tensile Strength	A. Length direction B. Cross direction	434 (63.0) 329 (47.7)	MPa (kpsi)	ASTM D3039
Young's Modulus	A. Length direction B. Cross direction	3684 3116	ksi	ASTM D790-15e2
Poisson's Ratio	A. Length direction B. Cross direction	0.191 0.154	—	ASTM D3039
Moisture Absorption		0.2	%	2.6.2.1A
Flammability (Laminate & laminated prepreg)		V-0	Rating	UL 94
Relative Thermal Index (RTI)		130	°C	UL 796
The data, while believed to be accurate and based on analytical methods considered to be reliable, is for information purposes only. Any sales of these products will be governed by the terms and conditions of the agreement under which they are sold.

NOTE

Visit our site http://www.isola-group.com for more details.
Revisions:
A: Initial release - 4/17
B: Corrected units for Flexural and Tensile Strength - 8/18
C: Change MOT to RTI 5/19

Constructions ▼

Download Dk/Df Tables PDF

Core Data

Construction	Resin Content %	Standard/Alternate	Thinckness (inch)	Thickness (mm)	100 MHz	500 MHz	1 GHz	2 GHz	5 GHz	10 GHz
Construction	Resin Content %	Standard/Alternate	Thinckness (inch)	Thickness (mm)	Dielectric Constant (DK)/ Dissipation Factor (DF)
1x1080	58.0%	Standard	0.0025	0.064	3.83 0.0140	3.79 0.0160	3.77 0.0180	3.75 0.0190	3.72 0.0190	3.72 0.0190
1x2113	44.0%	Standard	0.0030	0.076	4.14 0.0120	4.10 0.0140	4.09 0.0150	4.07 0.0160	4.06 0.0160	4.06 0.0160
2x106	65.0%	Standard	0.0035	0.089	3.69 0.0150	3.65 0.0170	3.63 0.0190	3.61 0.0200	3.58 0.0200	3.58 0.0200
1x2116	45.0%	Standard	0.0040	0.102	4.11 0.0120	4.08 0.0140	4.07 0.0150	4.04 0.0160	4.02 0.0160	4.02 0.0160
106/1080	59.0%	Alternate	0.0040	0.102	3.83 0.0140	3.79 0.0160	3.77 0.0180	3.75 0.0190	3.72 0.0190	3.72 0.0190
106/1080	60.0%	Standard	0.0043	0.109	3.79 0.0140	3.75 0.0160	3.73 0.0180	3.71 0.0190	3.68 0.0200	3.68 0.0200
1x1652	42.0%	Standard	0.0050	0.127	4.18 0.0120	4.15 0.0130	4.14 0.0150	4.12 0.0150	4.10 0.0160	4.10 0.0160
106/2113	56.0%	Standard	0.0053	0.135	3.87 0.0140	3.83 0.0150	3.82 0.0170	3.79 0.0180	3.76 0.0190	3.76 0.0190
1080/2113	53.0%	Standard	0.0060	0.152	3.93 0.0130	3.90 0.0150	3.88 0.0170	3.86 0.0180	3.83 0.0180	3.83 0.0180
1x7628	41.0%	Standard	0.0070	0.178	4.21 0.0120	4.18 0.0130	4.17 0.0150	4.14 0.0150	4.12 0.0150	4.12 0.0150
2113/2116	44.0%	Alternate	0.0070	0.178	4.14 0.0120	4.10 0.0140	4.09 0.0150	4.07 0.0160	4.06 0.0160	4.06 0.0160
2x2116	45.0%	Standard	0.0080	0.203	4.11 0.0120	4.08 0.0140	4.07 0.0150	4.04 0.0160	4.02 0.0160	4.02 0.0160
2x2116	52.0%	Standard	0.0095	0.241	3.95 0.0130	3.92 0.0150	3.90 0.0170	3.88 0.0170	3.85 0.0180	3.85 0.0180
2x1652	42.0%	Standard	0.0100	0.254	4.18 0.0120	4.15 0.0130	4.14 0.0150	4.12 0.0150	4.10 0.0160	4.10 0.0160
2x1080/7628	47.0%	Standard	0.0120	0.305	4.06 0.0130	4.03 0.0140	4.02 0.0160	3.99 0.0160	3.97 0.0170	3.97 0.0170
2x7628	41.0%	Standard	0.0140	0.356	4.21 0.0120	4.18 0.0130	4.17 0.0150	4.14 0.0150	4.12 0.0150	4.12 0.0150
2x7628/2116	42.0%	Standard	0.0180	0.457	4.18 0.0120	4.15 0.0130	4.14 0.0150	4.12 0.0150	4.10 0.0160	4.10 0.0160
3x7628	40.0%	Standard	0.0210	0.533	4.23 0.0120	4.20 0.0130	4.19 0.0140	4.17 0.0150	4.15 0.0150	4.15 0.0150
3x7628/1080	42.0%	Standard	0.0240	0.610	4.18 0.0120	4.15 0.0130	4.14 0.0150	4.12 0.0150	4.10 0.0160	4.10 0.0160
4x7628	40.0%	Standard	0.0280	0.711	4.23 0.0120	4.20 0.0130	4.19 0.0140	4.17 0.0150	4.15 0.0150	4.15 0.0150
4x7628/1080	42.0%	Standard	0.0310	0.787	4.18 0.0120	4.15 0.0130	4.14 0.0150	4.12 0.0150	4.10 0.0160	4.10 0.0160
5x7628	40.0%	Standard	0.0350	0.889	4.23 0.0120	4.20 0.0130	4.19 0.0140	4.17 0.0150	4.15 0.0150	4.15 0.0150

Prepreg Data

Glass Style	Resin Content %	Standard/Alternate	Thickness (inch)	Thickness (mm)	100 MHz	500 MHz	1 GHz	2 GHz	5 GHz	10 GHz
Glass Style	Resin Content %	Standard/Alternate	Thickness (inch)	Thickness (mm)	Dielectric Constant (DK)/ Dissipation Factor (DF)
106	75.0%	Standard	0.0025	0.064	3.52 0.0160	3.47 0.0180	3.45 0.0210	3.42 0.0220	3.39 0.0230	3.39 0.0230
1080	65.0%	Standard	0.0033	0.084	3.69 0.0150	3.65 0.0170	3.63 0.0190	3.61 0.0200	3.58 0.0210	3.58 0.0210
2113	57.0%	Standard	0.0042	0.107	3.85 0.0140	3.81 0.0160	3.79 0.0180	3.77 0.0180	3.74 0.0190	3.74 0.0190
2116	56.0%	Standard	0.0054	0.137	3.87 0.0140	3.83 0.0150	3.82 0.0170	3.79 0.0180	3.76 0.0190	3.76 0.0190
1652	50.0%	Standard	0.0059	0.150	4.00 0.0130	3.96 0.0140	3.95 0.0160	3.92 0.0170	3.90 0.0170	3.90 0.0170
2116	62.0%	Alternate	0.0064	0.163	3.75 0.0140	3.71 0.0160	3.69 0.0190	3.67 0.0190	3.64 0.0200	3.64 0.0200
7628	42.0%	Standard	0.0075	0.191	4.18 0.0120	4.15 0.0130	4.14 0.0150	4.12 0.0150	4.10 0.0160	4.10 0.0160
7628	47.0%	Alternate	0.0084	0.213	4.06 0.0130	4.03 0.0140	4.02 0.0160	3.99 0.0160	3.97 0.0170	3.97 0.0170
7628	50.0%	Alternate	0.0091	0.231	4.00 0.0130	3.96 0.0140	3.95 0.0160	3.92 0.0170	3.90 0.0170	3.90 0.0170

NOTE

Revisions:
A-Original-4/17
B-Added Standard & Alternate construction-8/18
C - Deleted 4 mil 1x3070 Construction. Added 4 mil 106/1080 construction

Standard-Commonly available with the best availability.
Alternate-Available, but not stocked with longer lead time

Documentation ▼

Resource Title & Summary	Date Updated
FR406 Laminate Supplemental	03/20/2024
FR406 Prepreg Supplemental	03/20/2024
Isola Laminate Outgassing Data Properties	03/22/2024
FR406 Prepreg Safety Data Sheet	01/22/2024
FR406 Laminate Safety Data Sheet	01/22/2024
FR406 Laminate RoHS Declaration	03/20/2024
FR406 Prepreg RoHS Declaration	03/20/2024
FR406 Processing Guide	06/23/2020

Resources

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Property		FR406
Recommended for New Design		—
Halogen Free		—
Glass Transition Temperature (Tg) by DSC	Resin Content	170
Dk, Permittivity	Resin Content	3.92
Decomposition Temperature (Td) by TGA @ 5% weight loss	Resin Content	300
Df, Loss Tangent	Resin Content	0.0172
Moisture Absorption	Resin Content	0.2
Z-Axis CTE	50 to 260°C, (Total Expansion)	3.5
Peel Strength	Standard profile copper >>> After thermal stress	1.60 (9.0)

FR406

Standard Loss, High Tg Epoxy Laminate and Prepreg

FR406 sets the industry standard for high performance epoxy materials.

Thermal Performance

Electrical Performance

Industry Approvals

Thermal Performance

Electrical Performance

Industry Approvals

Attributes

Product Features

Production & Manufacturing

Product Availability

Core Data

Prepreg Data

Add a Product to Compare to FR406

Resources

Laminate & Prepreg Manufacturing

Contact Our Team For Product Information