ITEQ IT-158TC / IT-158BS PCB Material Specifications and Highleap Manufacturing Services
Get IT-158TC / IT-158BS specs and expert PCB manufacturing and assembly services from Highleap—ideal for high-reliability, RoHS-compliant applications.
ITEQ Laminate/ Prepreg : IT-158TC / IT-158BS
| Property | Thickness < 0.50 mm [0.0197 in] |
Thickness ≥ 0.50 mm [0.0197 in] |
Units (Metric / English) |
Test Method IPC-TM-650 |
||
|---|---|---|---|---|---|---|
| Typical | Spec | Typical | Spec | |||
| Peel Strength, minimum | Low-profile & very-low-profile copper foil – all copper >17 µm [0.669 mil] | N/mm (lb/inch) |
2.4.8 2.4.8.2 2.4.8.3 |
|||
| 0.88 (5.0) | 0.70 (4.00) | 0.88 (5.0) | 0.70 (4.00) | |||
| Standard profile copper foil – After Thermal Stress | ||||||
| 1.58 (9.0) | 0.80 (4.57) | 1.66 (9.5) | 1.05 (6.00) | |||
| 1.31 (7.5) / 0.70 (4.00) | 1.40 (8.0) / 0.70 (4.00) | |||||
| Standard profile copper foil – After Process Solutions | ||||||
| 1.14 (6.5) | 0.55 (3.14) | 1.23 (7.0) | 0.80 (4.57) | |||
| Volume Resistivity, minimum | C-96/35/90 | MΩ·cm | 2.5.17.1 | |||
| 3.0×10¹⁰ | 10⁶ | — | 10³ | |||
| After moisture resistance / E-24/125 | ||||||
| 5.0×10¹⁰ | 10³ | 5.0×10¹⁰ 1.0×10¹⁰ |
10⁴ 10³ |
|||
| Surface Resistivity, minimum | C-96/35/90 | MΩ | 2.5.17.1 | |||
| 1.0×10¹⁰ | 10⁴ | — | 10³ | |||
| 5.0×10¹⁰ | 10³ | 1.0×10¹⁰ 3.0×10¹⁰ |
10⁴ 10³ |
|||
| Moisture Absorption, maximum | — | — | 0.08 | 0.5 | % | 2.6.2.1 |
| Dielectric Breakdown, minimum | — | — | 60 | 40 | kV | 2.5.6 |
| Permittivity (Dk, 50 % resin) | 4.3 | 5.4 | 4.3 | 5.4 | — | 2.5.5.9 2.5.5.13 |
| 4.3 | — | 4.3 | — | |||
| 4.2 | — | 4.2 | — | |||
| 4.1 | — | 4.1 | — | |||
| 4.0 | — | 4.0 | — | |||
| Loss Tangent (Df, 50 % resin) | 0.016 | 0.035 | 0.016 | 0.035 | — | 2.5.5.9 2.5.5.13 |
| 0.016 | — | 0.016 | — | |||
| 0.017 | — | 0.017 | — | |||
| 0.018 | — | 0.018 | — | |||
| 0.019 | — | 0.018 | — | |||
| Flexural Strength, minimum | 450-480 (65,250-69,600) | 415 (60,190) | N/mm² (lb/in²) |
2.4.4 | ||
| 370-400 (53,650-62,350) | 345 (50,140) | |||||
| Arc Resistance, minimum | 125 | 60 | 125 | 60 | s | 2.5.1 |
| Thermal Stress 10 s @ 288 °C, minimum | Pass / Pass Visual | Pass / Pass Visual | Rating | 2.4.13.1 | ||
| (Unetched / Etched) | ||||||
| Electric Strength, minimum | 45 | 30 | — | — | kV/mm | 2.5.6.2 |
| Flammability | V-0 | V-0 | V-0 | V-0 | Rating | UL94 |
| Glass Transition Temp (Tg, DSC) | 155 | 150 min | 155 | 150 min | ℃ | 2.4.25 |
| Decomposition Temp (Td, 5 % wt-loss) | — | — | 345 | 325 min | ℃ | 2.4.24.6 |
| X/Y-Axis CTE (40–125 ℃) | — | — | 11–13 | — | ppm/℃ | 2.4.24 |
| Z-Axis CTE | Alpha 1 | ppm/℃ / % |
2.4.24 | |||
| — | — | 40 | 60 max | |||
| Alpha 2 / 50–260 ℃ : 240 / 3.3 (300 max / 3.5 max) | ||||||
| Thermal Resistance | >60 | 30 min | Minutes | 2.4.24.1 | ||
| >30 | 5 min | |||||
| CAF Resistance | — | — | Pass | AABUS | Pass/Fail | 2.6.25 |
The technical data and fabrication guidelines provided above are intended for reference by designers and PCB manufacturers. While we strive to ensure the accuracy and reliability of this information, variations may occur depending on testing methods, equipment, and specific application conditions. Final product specifications shall be defined by the official agreement between ITEQ and its customers. ITEQ reserves the right to update this information without prior notice, aiming to provide the most accurate and helpful data to users.
If you have any questions or need further assistance regarding material selection or PCB production, please feel free to contact Highleap Electronics. We’re here to support your project every step of the way.
Why Choose Highleap Electronics as Your IT-158 PCB Manufacturer in China
Highleap Electronics is a trusted PCB manufacturer in China with proven experience working with ITEQ’s IT-158TC and IT-158BS materials. We specialize in multilayer PCB fabrication using IT-158 laminates for applications that require high thermal reliability, dimensional stability, and lead-free compliance. Our manufacturing lines are fully automated and backed by strict IPC quality standards, ensuring low warpage, high yield, and fine-line resolution even in complex builds. As a dedicated IT-158 PCB manufacturer, we provide fast prototyping, scalable mass production, and expert engineering support from start to finish.
One-Stop ITEQ IT-158 PCB Fabrication and Assembly Services
At Highleap Electronics, we go beyond PCB manufacturing by offering fully integrated PCB assembly services—all under one roof. From laminate preparation to SMT, BGA reflow, AOI, and functional testing, we manage the entire process for IT-158-based circuit boards. This one-stop workflow reduces handling errors, accelerates lead times, and improves cost-efficiency for your PCBA projects. As an experienced ITEQ PCB supplier, we maintain full material traceability and use in-house IPC-trained staff to ensure consistency and quality across all stages of production. Whether you need quick-turn samples or high-volume assembly, we’re here to support your success.
Committed to Your Success with Every PCB We Build
Responsive Engineering Support
We collaborate closely with you during every step of the PCB project—offering design-for-manufacturing (DFM) advice and material guidance tailored to your application.
Global Logistics & Timely Delivery
With optimized production scheduling and worldwide shipping, we make sure your IT-158 PCBs arrive on time, every time.
Long-Term Partnership Focus
We don’t just manufacture PCBs—we build trust. Our goal is to support your success with consistent quality, competitive pricing, and responsive service.
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