Premium Low-Loss Microwave Circuit Board Material for High-Performance RF Applications
RT/duroid 5880LZ is an advanced low-loss, PTFE-based microwave substrate engineered for demanding high-frequency applications. This premium laminate combines exceptional electrical performance with superior mechanical stability, making it the preferred choice for aerospace, defense, telecommunications, and automotive radar systems.
Key Product Specifications
Electrical Properties:
- Dielectric constant (Dk): 2.20 ± 0.02 at 10 GHz
- Loss tangent (Df): 0.0009 at 10 GHz (ultra-low loss)
- Frequency range: DC to 110+ GHz
- Dielectric constant stability: ±0.25% over temperature
Physical Properties:
- Thickness range: 0.005″ to 0.060″ (0.127mm to 1.524mm)
- Copper cladding: 0.5 oz to 2 oz electrodeposited copper
- Thermal coefficient of expansion: 17 ppm/°C (X,Y axis)
- Glass transition temperature (Tg): >280°C
- Thermal conductivity: 0.20 W/m/K
Applications & Industries
Aerospace & Defense:
- Phased array antennas
- Satellite communication systems
- Military radar applications
- Electronic warfare systems
Telecommunications:
- 5G/6G infrastructure
- Base station antennas
- Point-to-point microwave links
- Cellular repeaters
Automotive:
- ADAS radar sensors (24GHz, 77GHz, 79GHz)
- Collision avoidance systems
- Blind spot monitoring
- Adaptive cruise control
Test & Measurement:
- Network analyzers
- Signal generators
- High-frequency test fixtures
- Calibration standards
Competitive Advantages
Ultra-Low Loss Performance: With a dissipation factor of just 0.0009 at 10 GHz, RT/duroid 5880LZ delivers superior signal integrity and minimal insertion loss compared to standard FR-4 materials.
Excellent Dimensional Stability: PTFE-based construction provides exceptional mechanical stability across temperature extremes, ensuring consistent performance in harsh environments.
Wide Frequency Coverage: Proven performance from DC to beyond 110 GHz makes this substrate ideal for emerging millimeter-wave applications.
Consistent Dielectric Properties: Tight dielectric constant tolerance (±0.02) enables predictable circuit performance and simplified design processes.
Processing & Fabrication
RT/duroid 5880LZ is compatible with standard PCB fabrication processes including:
- Through-hole plating
- Surface mount assembly
- Wire bonding
- Mechanical drilling and routing
Recommended Processing Parameters:
- Drilling speed: 150-300 SFM
- Via plating: Standard electroless/electrolytic copper
- Solder mask compatibility: Yes
- Lead-free solder compatible: Yes
Technical Comparison
| Parameter | RT/duroid 5880LZ | Standard FR-4 | Competitive PTFE |
|---|---|---|---|
| Loss Tangent @ 10GHz | 0.0009 | 0.020 | 0.0018-0.0025 |
| Dielectric Constant | 2.20 ± 0.02 | 4.2-4.8 | 2.17-2.33 |
| Frequency Range | DC-110+ GHz | DC-6 GHz | DC-40 GHz |
| Temperature Stability | Excellent | Poor | Good |
Quality & Certifications
- UL 94 V-0 flame rating
- RoHS compliant
- REACH compliant
- IPC-4101 specification compliance
- ISO 9001:2015 certified manufacturing
Ordering Information
Standard Panel Sizes:
- 12″ x 18″ (305mm x 457mm)
- 18″ x 24″ (457mm x 610mm)
- Custom sizes available upon request
Copper Cladding Options:
- Single-sided (1 oz, 2 oz)
- Double-sided (0.5 oz, 1 oz, 2 oz)
- Custom copper weights available
Thickness Availability:
- 0.005″, 0.010″, 0.020″, 0.031″, 0.060″
- Metric equivalents available
- Custom thicknesses on request
Technical Support & Design Resources
Our engineering team provides comprehensive technical support including:
- Material selection guidance
- Design rule recommendations
- Processing parameter optimization
- Application-specific consulting
Design Tools Available:
- Dielectric property database
- Stack-up calculators
- Processing guidelines
- Application notes
Why Choose RT/duroid 5880LZ?
RT/duroid 5880LZ represents the pinnacle of high-frequency laminate technology, offering unmatched electrical performance for critical RF and microwave applications. Its ultra-low loss characteristics, combined with excellent mechanical properties and processing reliability, make it the material of choice for next-generation wireless systems, automotive radar, and aerospace applications.
Ready to optimize your high-frequency designs? Contact our technical sales team for samples, pricing, and application-specific recommendations. Our experts are standing by to help you achieve superior RF performance with RT/duroid 5880LZ.




