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Rogers Kappa 438 2-Layer 30mil High Frequency PCB ENIG Finish Low-Loss Board for WiFi, Small Cell and V2X Applications
Rogers Kappa 438 2-Layer 30mil High Frequency PCB ENIG Finish Low-Loss Board for WiFi, Small Cell and V2X Applications
Printed Circuit Boards are custom-made products; the images and specifications provided are for reference only.
1. Rogers Kappa 438 PCB Introduction
Rogers Kappa 438 2-layer rigid PCB is a high-frequency printed circuit board built on Rogers’ glass-reinforced hydrocarbon ceramic laminate system. Engineered to deliver exceptional high-frequency performance at a competitive cost, Rogers Kappa 438 PCB material enables low-loss circuit fabrication using standard FR-4 manufacturing processes, making it both efficient and economical for high-volume production. Rogers Kappa 438 laminate PCB carries the UL 94 V‑0 flame retardant rating and is fully compatible with lead‑free soldering processes, supporting industry-standard production flows. With dielectric constant values aligned to widely accepted FR-4 specifications, this laminate simplifies the upgrade of existing FR-4 designs to achieve significantly improved electrical performance for modern wireless and RF applications.
2. Rogers Kappa 438 PCB Features
Glass-reinforced hydrocarbon thermoset material platform
Dielectric constant (Dk) of 4.38, aligned with FR-4 industry standard norms
Tighter Dk and thickness tolerances than standard FR‑4
Low Z-axis CTE of 42 ppm/°C
High glass transition temperature (Tg) > 280°C (TMA)
Thermal coefficient of Dk: -21 ppm/°C from -50°C to 150°C
UL 94 V‑0 flame retardant certified
3. Rogers Kappa 438 PCB Benefits
Straightforward PCB manufacturing and assembly using conventional FR-4 processes
Dk value simplifies migration from legacy FR-4 designs to higher-performance circuits
Delivers consistent and reliable circuit performance across operating conditions
Enhanced design flexibility and improved plated through-hole reliability
Fully compatible with automated assembly and mass production processes
4. PCB Construction Details
Item |
Specification |
Base material |
Kappa 438 |
Layer count |
2-layer rigid PCB |
Board dimensions |
45.5mm x 32mm per piece, +/- 0.15mm |
Minimum Trace/Space |
5/6 mils |
Minimum Hole Size |
0.2mm |
Blind vias |
No Blind vias |
Finished board thickness |
0.85mm |
Finished Cu weight |
1 oz (1.4 mils) outer layers |
Via plating thickness |
20 μm |
Surface finish |
Electroless Nickel and Immersion Gold (ENIG) |
Top Silkscreen |
No |
Bottom Silkscreen |
No |
Top Solder Mask |
No |
Bottom Solder Mask |
No |
Quality Control |
100% Electrical test prior to shipment |
5. PCB Stackup
2-layer rigid PCB
Copper_layer_1 - 35 μm
Rogers Kappa 438 - 0.762 mm (30mil)
Copper_layer_2 - 35 μm
6. PCB Statistics
Components: 51
Total Pads: 43
Thru Hole Pads: 25
Top SMT Pads: 18
Bottom SMT Pads: 0
Vias: 51
Nets: 2
7. Artwork & Quality Standards
Type of artwork supplied: Gerber RS‑274‑X
Accepted standard: IPC‑Class‑2
Availability: worldwide
8. Typical Applications
Carrier Grade WiFi / Licensed Assisted Access (LAA)
Small Cell and Distributed Antenna Systems (DAS)
Vehicle to Vehicle / Vehicle to Infrastructure Communications (V2X)
Internet of Things (IoT): Smart Home and Wireless Meters
9. Conclusion
Rogers 2-Layer Kappa 438 high frequency PCB combines FR-4 process compatibility, stable electrical performance and low-loss characteristics, making it an ideal upgrade for wireless and RF applications. With 30mil core thickness, 0.85mm finished board thickness, ENIG surface finish and IPC Class 2 quality, Rogers Kappa 438 RF circuit board provides reliable performance for WiFi, small cell, V2X and IoT systems worldwide.
Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd is an established high frequency PCB supplier and exporter in Shenzhen, China, serving customers worldwide.
We are devoted to delivering high-frequency PCB products and solutions of the highest quality, along with customized service. Get in touch with us to start your project !
Visit https://www.bicheng-enterprise.com to learn more.