ITEQ IT-180A
Tg 175°C | Td 340°C — the industry-standard high-Tg workhorse for automotive, industrial, and lead-free assembly. Drop-in for Isola 370HR at lower cost.
4.0
Dk @ 1 GHz
175°C
Tg (DSC)
340°C
Td
UL V-0
Flammability
What Is ITEQ IT-180A?
ITEQ IT-180A is a high-Tg, halogen-free compatible, E-glass reinforced laminate with a modified epoxy resin system. It delivers the thermal performance needed for lead-free assembly while maintaining the processability and cost-effectiveness that production environments demand.
As a drop-in replacement for Isola 370HR — the long-standing industry standard for high-Tg applications — IT-180A has been qualified by major automotive and industrial OEMs worldwide. Its combination of reliability, availability, and competitive pricing has made it one of the most popular high-Tg laminates globally.
Lead-Free Ready
175°C Tg and 340°C Td handle multiple 260°C peak reflow cycles without degradation
Automotive Qualified
Approved by major Tier 1 automotive suppliers for ECU, ADAS, and powertrain applications
Cost Leader
10–20% less than 370HR with equivalent performance and full cross-qualification
Material Properties
| Property | Value | Test Method |
|---|---|---|
| Dielectric Constant (Dk) | 4.0 | IPC-TM-650, 1 GHz |
| Dissipation Factor (Df) | 0.014 | IPC-TM-650, 1 GHz |
| Glass Transition (Tg) | 175°C | DSC |
| Decomposition Temp (Td) | 340°C | TGA, 5% wt loss |
| CTE Z-axis | ~45 ppm/°C | TMA |
| Flammability | UL 94 V-0 | UL |
| Reinforcement | E-glass | — |
| Resin System | Modified epoxy | — |
| Moisture Absorption | ≤0.10% | IPC-TM-650 |
Technical Highlights
Automotive Grade
Meets AEC-Q200 thermal cycling requirements for -40°C to +125°C operating range. Proven in millions of automotive ECUs in production today.
CAF Resistant
Excellent Conductive Anodic Filament (CAF) resistance ensures long-term reliability in high-humidity environments with fine-pitch vias.
Proven Multilayer
Decades of production history in 8–24 layer builds. Well-characterized press cycles and drilling parameters at every major fabricator.
IT-180A vs. Competing Materials
| Property | IT-180A | Isola 370HR | TU-872 SLK |
|---|---|---|---|
| Dk @ 1 GHz | 4.0 | 4.04 | 4.05 |
| Df @ 1 GHz | 0.014 | 0.015 | 0.013 |
| Tg (°C) | 175 | 180 | 170 |
| Td (°C) | 340 | 340 | 330 |
| CTE Z-axis | 45 ppm/°C | 45 ppm/°C | 50 ppm/°C |
| Relative Cost | $ | $$ | $ |
IT-180A offers functionally equivalent performance to Isola 370HR at 10–20% lower cost, making it the preferred high-Tg choice for cost-sensitive production programs — especially in automotive where volume pricing matters.
Target Applications
Automotive ECU
Engine control, body control, and gateway modules for passenger and commercial vehicles
ADAS Systems
Camera, radar, and LiDAR processing boards for advanced driver assistance
Industrial Control
PLC, motor drives, and SCADA controller boards for factory automation
Power Electronics
Inverter gate drivers and DC-DC converter boards with high thermal demands
LED Lighting
High-power LED driver boards and automotive lighting modules
Medical Devices
Patient monitoring and diagnostic equipment requiring lead-free assembly
Design Guidance
Stackup Recommendations
- Available in all standard glass styles: 1080, 2116, 7628 — use standard IPC stackup guidelines
- For impedance-controlled designs, use Dk 4.0 at 1 GHz in your field solver
- Symmetric stackups recommended for automotive to minimize warpage during reflow
Processing Tips
- Standard high-Tg press profile — no special lamination equipment required
- Compatible with all standard surface finishes: ENIG, HASL, OSP, immersion tin/silver
- Drill parameters identical to standard high-Tg FR-4 — no special feeds/speeds needed
Why AtlasPCB for IT-180A?
Automotive Certified
IATF 16949 compliant process with PPAP documentation available for automotive programs
Always In Stock
IT-180A is our highest-volume high-Tg material — always available for immediate production start
Production Pricing
Volume agreements with ITEQ deliver industry-leading per-panel pricing for production runs
Frequently Asked Questions
Common questions about ITEQ IT-180A PCB fabrication
Is ITEQ IT-180A a drop-in replacement for Isola 370HR?
Yes. IT-180A has nearly identical electrical and thermal properties to Isola 370HR (similar Dk, Tg, and Td) and can be substituted without design changes in most applications. Many automotive and industrial OEMs have qualified it as an approved alternate.
What is the Tg of ITEQ IT-180A?
IT-180A has a glass transition temperature (Tg) of 175°C measured by DSC. Combined with a Td of 340°C, it comfortably handles multiple lead-free reflow cycles at 260°C peak.
What industries commonly use IT-180A?
IT-180A is widely used in automotive (ECU, ADAS, powertrain), industrial controls, power electronics, LED lighting, and general high-reliability multilayer applications requiring lead-free assembly compatibility.
What layer counts does AtlasPCB support with IT-180A?
AtlasPCB fabricates IT-180A boards from 2 to 24+ layers. As one of the most commonly used high-Tg materials, we maintain significant stock for fast turnaround on both prototypes and production.
How does IT-180A pricing compare to other high-Tg materials?
IT-180A is one of the most cost-effective high-Tg laminates available. Manufactured at scale by ITEQ, it typically costs 10–20% less than Isola 370HR with equivalent performance, making it the preferred choice for cost-sensitive production runs.
Start Your IT-180A Project Today
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