185HR

High-Tg, Low-CTE Materials with High Thermal Reliability

Download Data Sheet

Thermal PerformanceElectrical PerformanceIndustry Approvals
Tg
180°C
Td
340°C
Dk
4.01
Df
0.0200
IPC-4101 - /98 /99 /101 /126
UL - File Number E41625
185HR laminate and prepreg materials are a proprietary, high-performance resin system with a Tg of 180°C for multilayer Printed Wiring Board (PWB) applications where maximum thermal performance and reliability are required.

185HR laminate and prepreg materials are manufactured using Isola’s patented technology, reinforced with electrical grade (E-glass) glass fabric. This system delivers a 340°C decomposition temperature, a lower Z-axis expansion and offers lower loss compared to competitive products in this space. The 185HR system is also laser fluorescing and UV blocking for maximum compatibility with Automated Optical Inspection (AOI) systems, optical positioning systems and photoimageable solder mask imaging.

Product Features

  • Industry Recognition
    • UL File Number: E41625
    • Qualified to UL’s MCIL Program
    • RoHS Compliant
  • Performance Attributes
    • CAF resistant
    • Lead-free assembly compatible
  • Processing Advantages
    • FR-4 process compatible
    • UV blocking and AOI fluorescence

Product Availability

  • Standard Material Offering: Laminate
  • Copper Foil Type
    • HTE Grade 3
    • RTF (Reverse Treat Foil)
  • Copper Weight
    • ½ to 2 oz (18 to 70 µm) available
    • Heavier copper available
    • Thinner copper foil available
  • Standard Material Offering: Prepreg
    • Roll or panel form
    • Tooling of prepreg panels
  • Glass Fabric Availability
    • E-glass
    • Square weave glass

Production & Manufacturing

  • Currently manufactured in Asia, North America, Europe
PropertyTypical ValueUnitsTest Method
Metric (English)IPC-TM-650 (or as noted)
Test data generated from rigid laminateResin Content50%2.3.16.2
Glass Transition Temperature (Tg) by DSC180°C2.4.25C
Glass Transition Temperature (Tg) by DMA185°C2.4.24.4
Decomposition Temperature (Td) by TGA @ 5% weight loss340°C2.4.24.6
Time to Delaminate by TMA (Copper removed)
A. T260
B. T288
60
>15
Minutes2.4.24.1
Z-Axis CTE
A. Pre-Tg
B. Post-Tg
C. 50 to 260°C, (Total Expansion)
40
220
2.7
ppm/°C
ppm/°C
%
2.4.24C
X/Y-Axis CTEPre-Tg13/14ppm/°C2.4.24C
Thermal Conductivity0.4W/mKASTM E1952
Thermal Stress 10 sec @ 288ºC (550.4ºF)
A. Unetched
B. Etched
PassPass Visual2.4.13.1
Dk, Permittivity
A. @ 100 MHz
B. @ 1 GHz
C. @ 2 GHz
D. @ 5 GHz
E. @ 10 GHz
4.13
4.04
4.01
3.88
3.88
2.5.5.3
Bereskin Stripline
Bereskin Stripline
Bereskin Stripline
Bereskin Stripline
Df, Loss Tangent
A. @ 100 MHz
B. @ 1 GHz
C. @ 2 GHz
D. @ 5 GHz
E. @ 10 GHz
0.0158
0.0192
0.0200
0.0235
0.0236
2.5.5.3
Bereskin Stripline
Bereskin Stripline
Bereskin Stripline
Bereskin Stripline
Volume Resistivity
A. C-96/35/90
B. After moisture resistance
C. At elevated temperature
3.0 x 108
7.0 x 108
MΩ-cm2.5.17.1
Surface Resistivity
A. C-96/35/90
B. After moisture resistance
C. At elevated temperature
3.0 x 106
2.0 x 108
2.5.17.1
Dielectric Breakdown>50kV2.5.6B
Arc Resistance115Seconds2.5.1B
Electric Strength (Laminate & laminated prepreg)54 (1350)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

0.969 (5.5)

1.06 (5.9)
1.06 (5.9)
0.969 (5.5)
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
97,100
54,100
2.4.4B
Tensile Strength
A. Length direction
B. Cross direction
53,337
35,678
ASTM D3039
Poisson's Ratio
A. Length direction
B. Cross direction
0.172
0.155
ASTM D3039
Moisture Absorption0.15%2.6.2.1A
Flammability (Laminate & laminated prepreg)V-0RatingUL 94
Max Operating Temperature130°CUL 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.
02/23/2017
04/18/2017
11/02/2011
11/02/2011
07/05/2016

Webinars, Videos & Articles

Making Sense of Laminate Dielectric Properties (Technical Paper)

This paper highlights the critical selection factors that go beyond a typical product data sheet and explains how these factors must be considered when selecting materials for high speed applications.

Conductive Anodic Filament Growth Failure (Technical Paper)

This paper provides describes Isola's work in finding the right combination of process and design conditions for improved CAF resistant products.

Laminate & Prepreg Manufacturing (Presentation)

This presentation describes the process of laminate and prepreg manufacturing.

PCB Material Selection for High-speed Digital Designs (Presentation)

This presentation describes PCB factors that limit high-speed digital performance and the PCB material selection process and Isola product solutions.

If you have any questions about 185HR, our pricing, or our support, or if you would like some general advice on using our materials, then please do call us or complete the form below. Your message will be routed directly to the product manager who will promptly reply to your inquiry.

We thank you for your interest in 185HR.

  • This field is for validation purposes and should be left unchanged.

Core Data

ConstructionDielectric Constant (DK) / Dissipation Factor (DF)
Resin Content %Thickness (inch)Thickness (mm)100 MHz500 MHz1 GHz2 GHz5 GHz10 GHz
1x106773.0%0.00250.064
3.84
0.0184
3.77
0.021
3.74
0.0231
3.70
0.0241
3.55
0.0287
3.54
0.0289
1x108060.0%0.00250.064
4.06
0.0164
3.98
0.0185
3.96
0.0201
3.93
0.021
3.81
0.0247
3.80
0.0248
1x108661.0%0.00300.076
4.04
0.0166
3.97
0.0187
3.94
0.0204
3.91
0.0213
3.78
0.025
3.78
0.0252
1x108066.0%0.00300.076
3.96
0.0173
3.89
0.0197
3.86
0.0215
3.82
0.0224
3.68
0.0266
3.68
0.0267
1x211354.0%0.00350.089
4.19
0.0155
4.10
0.0174
4.07
0.0188
4.04
0.0195
3.92
0.0229
3.92
0.023
2x10672.0%0.00400.102
3.86
0.0183
3.78
0.0208
3.76
0.0228
3.72
0.0238
3.57
0.0284
3.56
0.0285
1x211648.0%0.00400.102
4.28
0.0145
4.21
0.0162
4.20
0.0175
4.18
0.0181
4.05
0.021
4.05
0.0211
1x331357.0%0.00400.102
4.11
0.016
4.04
0.0179
4.03
0.0194
3.99
0.0203
3.86
0.0238
3.86
0.0238
106/108065.0%0.00450.114
3.97
0.0172
3.90
0.0195
3.87
0.0213
3.84
0.0222
3.70
0.0262
3.70
0.0264
1x211653.0%0.00450.114
4.18
0.0153
4.11
0.0172
4.10
0.0185
4.07
0.0193
3.94
0.0225
3.94
0.0226
1x211657.0%0.00500.127
4.11
0.016
4.04
0.0179
4.03
0.0194
3.99
0.0203
3.86
0.0238
3.86
0.0238
2x108060.0%0.00500.127
4.06
0.0164
3.98
0.0185
3.96
0.0201
3.93
0.021
3.81
0.0247
3.80
0.0248
2x106773.0%0.00500.127
3.84
0.0184
3.77
0.021
3.74
0.0231
3.70
0.0241
3.55
0.0287
3.54
0.0289
106/211360.0%0.00550.140
4.06
0.0164
3.98
0.0185
3.96
0.0201
3.93
0.021
3.81
0.0247
3.80
0.0248
2x108063.0%0.00550.140
4.00
0.0169
3.93
0.0191
3.91
0.0208
3.87
0.0218
3.74
0.0257
3.74
0.0257
2x108065.0%0.00600.152
3.97
0.0172
3.90
0.0195
3.87
0.0213
3.84
0.0222
3.70
0.0262
3.70
0.0264
1x165252.0%0.00600.152
4.20
0.0152
4.13
0.017
4.11
0.0183
4.09
0.0191
3.97
0.0222
3.98
0.0223
1080/211357.0%0.00600.152
4.11
0.016
4.04
0.0179
4.03
0.0194
3.99
0.0203
3.86
0.0238
3.86
0.0238
2x108661.0%0.00600.152
4.04
0.0166
3.97
0.0187
3.94
0.0204
3.91
0.0213
3.78
0.025
3.78
0.0252
1x762843.0%0.00700.178
4.38
0.0138
4.32
0.0152
4.31
0.0164
4.27
0.017
4.16
0.0196
4.15
0.0197
2x211354.0%0.00700.178
4.19
0.0155
4.10
0.0174
4.07
0.0188
4.04
0.0195
3.92
0.0229
3.92
0.023
1x762846.0%0.00750.191
4.32
0.0142
4.27
0.0158
4.24
0.017
4.21
0.0177
4.10
0.0204
4.10
0.0205
2x331357.0%0.00800.203
4.11
0.016
4.04
0.0179
4.03
0.0194
3.99
0.0203
3.86
0.0238
3.86
0.0238
2x211648.0%0.00800.203
4.28
0.0145
4.21
0.0162
4.20
0.0175
4.18
0.0181
4.05
0.021
4.05
0.0211
1x762848.0%0.00800.203
4.28
0.0145
4.21
0.0162
4.20
0.0175
4.18
0.0181
4.05
0.021
4.05
0.0211
2x211653.0%0.00900.229
4.18
0.0153
4.11
0.0172
4.10
0.0185
4.07
0.0193
3.94
0.0225
3.94
0.0226
2x211657.0%0.01000.254
4.11
0.016
4.04
0.0179
4.03
0.0194
3.99
0.0203
3.86
0.0238
3.86
0.0238
3x211648.0%0.01200.305
4.28
0.0145
4.21
0.0162
4.20
0.0175
4.18
0.0181
4.05
0.021
4.05
0.0211
2x165252.0%0.01200.305
4.20
0.0152
4.13
0.017
4.11
0.0183
4.09
0.0191
3.97
0.0222
3.98
0.0223
2x762843.0%0.01400.356
4.38
0.0138
4.32
0.0152
4.31
0.0164
4.27
0.017
4.16
0.0196
4.15
0.0197
2x762846.0%0.01500.381
4.32
0.0142
4.27
0.0158
4.24
0.017
4.21
0.0177
4.10
0.0204
4.10
0.0205
2x7628/211644.0%0.01800.457
4.36
0.0139
4.30
0.0154
4.29
0.0166
4.25
0.0172
4.14
0.0198
4.13
0.0199
3x762843.0%0.02100.533
4.38
0.0138
4.32
0.0152
4.31
0.0164
4.27
0.017
4.16
0.0196
4.15
0.0197
4x762843.0%0.02800.711
4.38
0.0138
4.32
0.0152
4.31
0.0164
4.27
0.017
4.16
0.0196
4.15
0.0197
5x762843.0%0.03500.889
4.38
0.0138
4.32
0.0152
4.31
0.0164
4.27
0.017
4.16
0.0196
4.15
0.0197
5x7628/211644.0%0.03900.991
4.36
0.0139
4.30
0.0154
4.29
0.0166
4.25
0.0172
4.14
0.0198
4.13
0.0199
8x762843.0%0.05901.499
4.38
0.0138
4.32
0.0152
4.31
0.0164
4.27
0.017
4.16
0.0196
4.15
0.0197