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2-layer RO4350B PCB Rogers 20mil RF Circuit Board Immersion Silver

China Bicheng Electronics Technology Co., Ltd certification
China Bicheng Electronics Technology Co., Ltd certification
Kevin, Received and tested the boards - thanks very much. These are perfect, exactly what we needed. rgds Rich

—— Rich Rickett

Ruth, I got the PCB today, and they are just perfect. Please stay a little patience, my next order is coming soon. Kind regards from Hamburg Olaf

—— Olaf Kühnhold

Hi Natalie. It was perfect, I attach some pictures for your reference. And I send you next 2 projects to budget. Thanks a lot again

—— Sebastian Toplisek

Kevin, Thanks, they were perfectly made, and work well. As promised, here are the links for my latest project, using the PCBs you manufactured for me: Regards, Daniel

—— Daniel Ford

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2-layer RO4350B PCB Rogers 20mil RF Circuit Board Immersion Silver

2-layer RO4350B PCB Rogers 20mil RF Circuit Board Immersion Silver
2-layer RO4350B PCB Rogers 20mil RF Circuit Board Immersion Silver 2-layer RO4350B PCB Rogers 20mil RF Circuit Board Immersion Silver 2-layer RO4350B PCB Rogers 20mil RF Circuit Board Immersion Silver

Large Image :  2-layer RO4350B PCB Rogers 20mil RF Circuit Board Immersion Silver

Product Details:
Place of Origin: CHINA
Brand Name: Bicheng
Certification: UL, ISO9001, IATF16949
Payment & Shipping Terms:
Minimum Order Quantity: 1PCS
Price: USD9.99-99.99/PCS
Packaging Details: Vacuum bags+Cartons
Delivery Time: 8-9 working days
Payment Terms: T/T
Supply Ability: 5000PCS per month
Detailed Product Description
Material: RO4350B PCB Size: 106.84mm X 60.8 Mm=1PCS, +/- 0.15mm
Copper Weight: 1OZ Surface Finish: Immersion Silver
Layer Count: 2 Layers PCB Thickness: 0.6mm
High Light:

Immersion Silver RF Circuit Board


20mil RF Circuit Board


2-layer RO4350B PCB

Introducing one newly shipped PCB built on RO4350B laminate. It's a high-performance laminate that combines the electrical properties of PTFE/woven glass with the manufacturability of epoxy/glass. With its proprietary woven glass reinforced hydrocarbon/ceramic materials, the RO4350B offers exceptional electrical performance while being cost-effective to produce.


The RO4350B laminates provide precise control over the dielectric constant (Dk) and maintain low loss, using the same processing methods as standard epoxy/glass laminates. Unlike conventional microwave laminates, RO4350B laminates do not require special through-hole treatments or handling procedures, simplifying the manufacturing process. Additionally, these materials are UL 94 V-0 rated, ensuring their suitability for active devices and high-power RF designs.


With a dielectric constant of DK 3.48 +/-0.05 at 10GHz/23°C and a dissipation factor of 0.0037 at 10GHz/23°C, the RO4350B PCB ensures accurate and reliable signal transmission. It exhibits a thermal conductivity of 0.69 W/m/°K, contributing to efficient heat dissipation. The PCB demonstrates a low coefficient of thermal expansion (CTE) with 10 ppm/°C for the X axis, 12 ppm/°C for the Y axis, and 32 ppm/°C for the Z axis. It also possesses a high Tg value of >280 °C, ensuring stability under elevated temperatures. With a low water absorption rate of 0.06%, the PCB maintains excellent dimensional stability.


The RO4350B PCB offers numerous benefits for your applications. It is ideal for multi-layer board (MLB) constructions and can be processed like FR-4 at a lower fabrication cost, providing a cost-effective solution for high-performance designs. Additionally, it offers excellent dimensional stability, ensuring reliable performance in demanding environments. The RO4350B PCB is competitively priced, offering exceptional value for its performance capabilities.


RO4350B Typical Value
Property RO4350B Direction Units Condition Test Method
Dielectric Constant,εProcess 3.48±0.05 Z   10 GHz/23℃ IPC-TM-650 Clamped Stripline
Dielectric Constant,εDesign 3.66 Z   8 to 40 GHz Differential Phase Length Method
Dissipation Factortan,δ 0.0037
Z   10 GHz/23℃
2.5 GHz/23℃
Thermal Coefficient of ε +50 Z ppm/℃ -50℃to 150℃ IPC-TM-650
Volume Resistivity 1.2 x 1010   MΩ.cm COND A IPC-TM-650
Surface Resistivity 5.7 x109   COND A IPC-TM-650
Electrical Strength 31.2(780) Z Kv/mm(v/mil) 0.51mm(0.020") IPC-TM-650
Tensile Modulus 16,767(2,432)
MPa(ksi) RT ASTM D 638
Tensile Strength 203(29.5)
MPa(ksi) RT ASTM D 638
Flexural Strength 255
  IPC-TM-650 2.4.4
Dimensional Stability <0.5 X,Y mm/m
after etch+E2/150℃ IPC-TM-650 2.4.39A
Coefficient of Thermal Expansion 10
ppm/℃ -55℃to288℃ IPC-TM-650 2.4.41
Tg >280   ℃ TMA A IPC-TM-650
Td 390   ℃ TGA   ASTM D 3850
Thermal Conductivity 0.69   W/M/oK 80℃ ASTM C518
Moisture Absorption 0.06   % 48hrs immersion 0.060"
sample Temperature 50℃
ASTM D 570
Density 1.86   gm/cm3 23℃ ASTM D 792
Copper Peel Stength 0.88
after solder float 1 oz.
EDC Foil
IPC-TM-650 2.4.8
Flammability (3)V-0       UL 94
Lead-free Process Compatible Yes        


This particular PCB features a 2-layer rigid board stackup with copper_layer_1 (70 μm), a 0.508 mm (20mil) Rogers RO4350B core, and copper_layer_2 (70 μm). This configuration provides structural integrity and optimal electrical performance for your designs.

This PCB measures 106.84mm x 60.8mm with a tolerance of +/- 0.15mm. It features a minimum trace/space of 4/5 mils and a minimum hole size of 0.3mm. There are no blind vias. The finished board thickness is 0.6mm with a 1oz (1.4 mils) outer layer copper weight. The via plating thickness is 20 μm. The surface finish is immersion silver, providing excellent solderability and corrosion resistance. The PCB does not have top or bottom silkscreen or solder mask. Each board undergoes a comprehensive 100% electrical test to ensure its performance and reliability.

Each PCB adheres to IPC-Class-2 quality standards, ensuring high-quality manufacturing processes and reliable performance. It is available worldwide, catering to customers globally.


2-layer RO4350B PCB Rogers 20mil RF Circuit Board Immersion Silver 0


The RO4350B PCB finds applications in various industries. It is well-suited for cellular base station antennas and power amplifiers, offering excellent signal transmission and power handling capabilities. It is also suitable for RF identification tags, automotive radar, sensors, and LNB's (Low-Noise Block Downconverters) for direct broadcast satellites. Choose the RO4350B PCB for outstanding electrical performance, cost-effective fabrication, and reliable functionality in demanding applications.


2-layer RO4350B PCB Rogers 20mil RF Circuit Board Immersion Silver 1

Contact Details
Bicheng Electronics Technology Co., Ltd

Contact Person: Ms. Ivy Deng

Tel: 86-755-27374946

Fax: 86-755-27374848

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