Rogers RO4350b 4-Layer 0.5mm Multilayer PCB Wholesale Electronics Circuit Board

• Customization: Available
• Type: Rigid Circuit Board
• Dielectric: RO4350b
• Model NO.: BIC-1350-V2.1
• Material: RO4350b + High Tg 170°c Fr-4
• Application: Communication
• Flame Retardant Properties: V0
• Mechanical Rigid: Rigid
• Processing Technology: Electrolytic Foil
• Base Material: Copper
• Insulation Materials: Epoxy Resin
• Brand: Rogers
• Surface Finish: Immersion Gold
• Layer Count: 4 Layers
• Solder Mask: No
• Silkscreen: No
• Transport Package: Kk Paper, 3-Layer Wrinkle
• Specification: 70 mm x 50 mm, 1 PCS; 70 mm x 40 mm
• Trademark: Bicheng
• Origin: Shenzhen China
• HS Code: 8534009000
• Production Capacity: 360000 Square Meters/Year

Product Description

Rogers RO4350B 4-Layer 0.5mm Stepped High-Frequency PCB for RF and microwave designs
(All PCBs are custom-manufactured. Reference images and parameters may vary based on your design requirements.)
 

1. Overview of This PCB

This 4-layer stepped rigid printed circuit board utilizes Rogers RO4350B material-a woven glass-reinforced hydrocarbon/ceramic laminate-designed to deliver superior high-frequency performance with the manufacturability of standard FR-4 epoxy/glass processes. The board features a unique stepped outline with two distinct sections: one measuring 70mm x 50mm and the other 70mm x 40mm (±0.15mm tolerance), and a finished thickness of just 0.5mm. Compliant with IPC-Class-2 standards, this PCB is ideal for demanding RF and microwave applications where dimensional stability and low loss are critical.

Key attributes include an immersion gold surface finish for excellent solderability and corrosion resistance, with no silkscreen or solder mask on either side to minimize parasitic effects and signal loss at high frequencies. All copper layers use 1oz (35μm) copper weight, supported by 20μm via plating. The design supports a minimum trace/space of 4/7 mils and a minimum hole size of 0.3mm. Each board undergoes 100% electrical testing prior to shipment to ensure reliability and performance.

Rogers RO4350B's stable dielectric constant (3.48 ±0.05 at 10 GHz) and low dissipation factor (0.0037 at 10 GHz) make this PCB suitable for a wide range of high-frequency uses, including cellular base station antennas, automotive radar systems, RF identification tags, and satellite communication equipment. Artwork is supplied in Gerber RS-274-X format, and the board is available for manufacturing worldwide.

 

2. PCB Construction Details (Table)

Item	Specific Parameters
Layer Count	4-layer
Base Material	RO4350B
Board Dimensions	Stepped 4-layer RF PCB: - Outline 1: 70 mm x 50 mm, 1 PCS - Outline 2: 70 mm x 40 mm, ± 0.15 mm
Minimum Trace/Space	4/7 mils
Minimum Hole Size	0.3 mm
Outline Type	Stepped Outline
Finished Board Thickness	0.5 mm
Finished Cu Weight	1 oz (1.4 mils) outer layers
Via Plating Thickness	20 μm
Surface Finish	Immersion Gold
Top Silkscreen	No
Bottom Silkscreen	No
Top Solder Mask	No
Bottom Solder Mask	No
Inspection Prior to Shipment	100% Electrical Test

 

3. Additional Components & Features

Component & Pad Details
This compact RF PCB integrates 9 components with a total of 32 pads, including 17 thru-hole pads and 15 top-layer SMT pads. It also includes 23 vias and 4 nets, designed to ensure signal integrity and thermal stability in high-frequency environments.

4-Layer PCB Stack-up
The stack-up is engineered to maximize electrical performance using Rogers RO4350B and RO4450F prepreg:

Copper Layer 1 (Top): 35μm

Rogers RO4350B Core: 0.762mm (30mil)

Copper Layer 2 (Inner): 35μm

Prepreg (RO4450F): 0.102mm (4mil)

Copper Layer 3 (Inner): 35μm

Rogers RO4350B Core: 0.762mm (30mil)

Copper Layer 4 (Bottom): 35μm

Artwork, Standard & Availability

Artwork format: Gerber RS-274-X

Quality standard: IPC-Class-2

Availability: Worldwide

1. Key Material Introduction: Rogers RO4350B
   Rogers RO4350B PCB is a high-frequency laminate that combines ceramic-filled hydrocarbon thermoset resin with woven glass reinforcement. It offers electrical performance similar to PTFE-based materials but with the processing ease of FR-4, resulting in lower fabrication costs and shorter lead times. The material is UL 94 V-0 rated, making it suitable for high-power and active RF devices.
   
   Its thermal expansion properties are closely matched to copper, ensuring excellent dimensional stability-critical for multilayer and mixed-dielectric boards. With a Tg exceeding 280°C and low Z-axis CTE, RO4350B PCB provides reliable plated through-hole integrity even under severe thermal cycling conditions.
   
    

 

Features of Rogers RO4350B

Dielectric Constant: 3.48 ±0.05 @ 10 GHz/23°C

Dissipation Factor: 0.0037 @ 10 GHz/23°C

Thermal Conductivity: 0.69 W/m/°K

CTE: X: 10 ppm/°C, Y: 12 ppm/°C, Z: 32 ppm/°C

Tg: >280°C

Moisture Absorption: 0.06%


Benefits of Rogers RO4350B PCB

Ideal for multilayer RF designs requiring stable electrical properties

Compatible with standard FR-4 manufacturing processes, reducing cost and complexity

Excellent dimensional stability and thermal reliability

Cost-effective alternative to PTFE-based microwave laminates

Low loss and consistent performance up to millimeter-wave frequencies


Typical Applications

Cellular base station antennas and power amplifiers

Automotive radar and sensors

RF identification (RFID) tags

LNBs for direct broadcast satellites

High-frequency communication systems
 

Why Choose This PCB?
This 4-layer stepped PCB leverages Rogers RO4350B's superior high-frequency characteristics, offering low loss, stable Dk, and reliable thermal performance. Its immersion gold finish, absence of solder mask, and strict adherence to IPC-Class-2 standards make it an ideal choice for precision RF and microwave applications. With global availability and support for Gerber-based manufacturing, it provides a robust solution for advanced wireless systems.

Tags:Rogers RO4350B PCB, 4-layer RF PCB, stepped PCB, high-frequency laminate, immersion gold PCB, cellular antenna PCB, automotive radar PCB, Rogers RO4350B multilayer, low-loss PCB, microwave circuit board

Order Now for High-Frequency RF Applications!
Optimize your RF and microwave designs with this reliable 4-layer Rogers RO4350B PCB. Featuring a stepped outline, immersion gold finish, and worldwide availability, it is perfectly suited for base station, automotive, and satellite communication systems.