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Astra MT77 RF and Microwave PCB 2-Layer 10mil Low-Loss PCB with Stable Dk and Lead-Free Compatible
Astra MT77 RF and Microwave PCB 2-Layer 10mil Low-Loss PCB with Stable Dk and Lead-Free Compatible
Printed Circuit Boards are custom-made products; the images and specifications provided are for reference only.
- MT77 PCB Introduction
Astra MT77 2-Layer 0.33mm PCB: A breakthrough ultra-low-loss dielectric solution engineered for millimeter wave and beyond RF/microwave applications. MT77 laminate materials deliver exceptional electrical performance with remarkable stability across a broad frequency and temperature range (-40°C to +140°C up to W-band frequencies). As a cost-effective alternative to PTFE and other commercial microwave laminates, it features an ultra-low dissipation factor (Df) of 0.0017, making it ideal for today’s high-performance commercial RF/microwave printed circuit designs.
2.Core Features
Dielectric constant (Dk) of 3.0 at 2 GHz/23°C and 10 GHz/23°C
Ultra-low dissipation factor (Df) of 0.0017 at 2 GHz and 10 GHz
Peel Strength (1oz) reaches 5.7 lb/inch
Moisture Absorption as low as 0.1%
CTE: X-axis 12 ppm/°C, Y-axis 12 ppm/°C, Z-axis 250-350 ppm/°C
Tg of 200 °C (tested by DSC)
UL 94-V0 flame retardant rating
Lead-free process compatible
3.Key Benefits
FR-4 process compatibility for simplified manufacturing
Short lamination cycle to improve production efficiency
Reduced drill wear for lower manufacturing costs
No plasma desmear required, saving process steps
Excellent flow and fill performance for reliable fabrication
Superior dimensional stability during processing
Supports multiple lamination cycles for flexible design
Compatible with any layer technology and HDI technology
VIPPO design compatible for advanced circuit layouts
4.PCB Construction Details
Base material: Astra MT77
Layer count: 2 layers
Board dimensions: 48.5mm x 43.3mm (1PCS) with ±0.15mm tolerance
Minimum Trace/Space: 4/4 mils
Minimum Hole Size: 0.2mm
No Blind vias
Finished board thickness: 0.33mm
Finished Cu weight: 1oz (1.4 mils)
Via plating thickness: 20 μm
Surface finish: Immersion Gold
Top Silkscreen: White; Bottom Silkscreen: No
Top Solder Mask: Green; Bottom Solder Mask: Green
100% Electrical test conducted prior to shipment
5.PCB Stackup (2-layer rigid PCB)
Copper_layer_1: 35 μm
MT77 dielectric layer: 0.254 mm (10mil)
Copper_layer_2: 35 μm
PCB Statistics
Components: 10
Total Pads: 45
Thru Hole Pads: 25
Top SMT Pads: 20; Bottom SMT Pads: 0
Vias: 21
Nets: 2
6.Artwork & Standard Specifications
Type of artwork supplied: Gerber RS-274-X
Accepted standard: IPC-Class-2
Availability: Worldwide
7.Typical Applications
Automotive long antennas and radar systems
Adaptive cruise control, pre-crash detection systems
Blind spot detection, lane departure warning systems
Stop and go systems
8.Astra MT77 PCB Conclusion
Astra MT77 2-Layer 0.33mm PCB combines stable electrical properties, cost-effectiveness, and broad process compatibility to meet the demanding requirements of modern RF/microwave applications. Its ultra-low loss and temperature-stable Dk make it a reliable choice for high-performance electronic designs.