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The F4BM220 0.8mm PCB double-sided is a high-performance RF/microwave circuit board designed for low-loss, high-frequency applications.
Item NO.:
BIC-341-v420.0Order(MOQ):
1-10Payment:
T/TProduct Origin:
ChinaShipping Port:
ShenzhenLead Time:
7-10 days
2-layer F4BM220 0.8mm Thick PCB DK2.2 F4BM Series Substrates Immersion Gold with White Legend Blue Mask
1. Introduction
In the rapidly evolving field of high-frequency electronics, the demand for reliable, low-loss printed circuit boards (PCBs) is critical. The F4BM220 PCB (0.8mm thickness, double-sided) is engineered to meet the stringent requirements of RF, microwave, and high-speed digital applications. With its ultra-low dielectric constant (Dk 2.2 PCB) and minimal dissipation factor (Df = 0.001), this F4B PCB ensures superior signal integrity, reduced insertion loss, and enhanced thermal stability.
Manufactured using Wangling F4BM220 laminate, this board is an advanced PTFE-based material optimized for high-frequency performance, low passive intermodulation (PIM), and excellent dimensional stability. It is an ideal choice for 5G infrastructure, satellite communications, radar systems, and aerospace applications.
2. PCB Construction & Technical Specifications
Parameter |
Specification |
Base Material |
F4BM220 (PTFE-based) |
Layer Count |
Double-sided (2 layers) |
Board Dimensions |
66.7 mm × 51.9 mm (±0.15 mm) |
Minimum Trace/Space |
5/5 mils (0.127 mm) |
Minimum Hole Size |
0.25 mm (mechanical drilling) |
Via Type |
Through-hole only (No blind/buried) |
Finished Thickness |
0.9 mm (±10%) |
Copper Weight (Outer) |
1 oz (35 μm) |
Via Plating Thickness |
20 μm |
Surface Finish |
Immersion Gold (ENIG) |
Top Silkscreen |
White |
Bottom Silkscreen |
None |
Top Solder Mask |
Blue |
Bottom Solder Mask |
None |
Electrical Testing |
100% tested (No open/short circuits) |
Quality Standard: IPC-Class-2 (Reliable for commercial & industrial applications)
Artwork Format: Gerber RS-274-X (Industry-standard for PCB fabrication)
3. F4BM220 Laminate–Key Features & Benefits
3.1 Advanced Material Properties
The F4BM220 substrate is a high-performance PTFE composite engineered for low-loss, high-frequency applications. Key characteristics include:
Property |
Value |
Advantage |
Dielectric Constant (Dk) |
2.2 ±0.04 @ 10 GHz |
Stable signal propagation, minimal phase distortion |
Dissipation Factor (Df) |
0.001 @ 10 GHz |
Ultra-low signal loss, ideal for RF/microwave circuits |
Thermal Expansion (CTE) |
X/Y: 25/34 ppm/°C, Z: 240 ppm/°C (-55°C to 288°C) |
Excellent dimensional stability under thermal stress |
Thermal Coefficient of Dk |
-142 ppm/°C (-55°C to 150°C) |
Minimal frequency drift in varying temperatures |
Moisture Absorption |
≤0.08% |
High reliability in humid environments |
Flammability Rating |
UL-94 V0 |
Meets stringent fire safety standards |
3.2 Comparison with Standard PTFE Materials
Unlike conventional FR4 or standard PTFE laminates, F4BM220 offers:
✔Lower dielectric loss–Minimizes signal attenuation in high-frequency circuits
✔Better thermal stability–Reduced CTE mismatch prevents warping & delamination
✔Superior PIM performance (when paired with RTF copper in F4BME220 variant)
✔Optimized for high-power RF applications–Handles high-frequency signals with minimal distortion
4. PCB Stackup & Design Considerations
4.1 Layer Stackup (2-Layer Configuration)
Layer |
Material |
Thickness |
Top Copper |
1 oz (35 μm) ED Cu |
Signal layer |
Core |
F4BM220 |
0.8 mm |
Bottom Copper |
1 oz (35 μm) ED Cu |
Signal/Ground layer |
4.2 Key Design Recommendations
-Impedance Control: Due to the stable Dk, impedance matching is highly predictable.
-Thermal Management: The low CTE ensures minimal expansion under thermal cycling.
-High-Frequency Optimization: Ideal for microstrip/stripline RF designs.
5. Applications of F4BM220 PCB
This F4BM220 F4B high frequency PCB is optimized for high-frequency, low-loss applications, including:
✅5G & mmWave Infrastructure (Antennas, Beamforming Networks)
✅Satellite Communication (SATCOM) Systems
✅Radar & Defense Electronics (Phased Array Antennas, Radar Modules)
✅RF Power Amplifiers & Couplers
✅Microwave Filters & Phase Shifters
✅Base Station Antennas & Feed Networks
6. Why Choose This PCB?
6.1 Performance Advantages
✔Ultra-Low Loss: Minimizes signal degradation in RF/microwave circuits
✔High Thermal Stability: Reliable operation in extreme environments
✔Precision Manufacturing: Tight tolerances ensure consistency
✔Global Availability: Shipped worldwide with strict quality control
6.2 Competitive Edge Over Alternatives
Feature |
F4BM220 PCB |
Standard FR4 |
Standard PTFE |
Dk @ 10 GHz |
2.2 |
4.3-4.8 |
2.0-2.5 |
Df @ 10 GHz |
0.001 |
0.02 |
0.0007-0.002 |
Thermal Stability |
Excellent |
Poor |
Good |
PIM Performance |
Low (with ED Cu) |
High |
Very Low (with RTF Cu) |
7. Conclusion
The F4BM220 0.8mm PCB double-sided is a high-performance RF/microwave circuit board designed for low-loss, high-frequency applications. With its ultra-stable dielectric properties, excellent thermal resistance, and precision manufacturing, it is an optimal choice for 5G, aerospace, defense, and satellite communications.
For engineers and designers seeking reliable, high-frequency PCBs with minimal signal loss, this F4BM Series board delivers superior electrical performance, durability, and design flexibility.
Available for immediate order–Contact us for pricing & lead times!
If you have questions or suggestions,please leave us a message,we will reply you as soon as we can!
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