5x7cm Immersion Gold ENIG FR4 PCB

5x7cm Immersion Gold ENIG FR4 PCB

This 5x7cm ENIG FR4 PCB is a compact printed circuit board designed for electronic products requiring a flat surface finish, stable electrical performance and reliable solderability.

The standard board size is 5x7cm, while the board dimensions, shape, layer count and thickness can be customized according to the application and PCB design.

The board uses FR-4 or High-TG FR-4 material and supports 2 to 32 layers, making it suitable for both compact electronic devices and more complex multilayer circuit designs.

ENIG Immersion Gold Surface Finish

The PCB uses an Immersion Gold (ENIG) surface finish.

ENIG provides a flat and oxidation-resistant surface with good solderability, making it suitable for fine-pitch components, connectors and applications where a consistent surface finish is required.

The specified gold thickness is 0.05–0.1μm.

Compared with uneven surface finishes, the flat ENIG surface can be useful for PCB assembly involving fine-pitch components and other precision packages.

FR-4 and High-TG FR-4 Material

The PCB is available with standard FR-4 or High-TG FR-4 base material.

FR-4 provides a widely used solution for general electronic products, industrial control boards and consumer electronics.

High-TG FR-4 can be selected for applications requiring improved thermal resistance, including selected automotive and power electronics applications.

Compact 5x7cm PCB Size

The standard board size is 5x7cm, providing a compact PCB format for electronic products where installation space is limited.

The standard size can be customized according to the final product enclosure, mounting requirements and circuit layout.

Board shape, dimensions, layer count and thickness can be adjusted according to the approved PCB design.

High-Precision PCB Fabrication

The PCB supports minimum line width and spacing of approximately 3mil/3mil and a minimum hole size of approximately 0.15mm.

These manufacturing capabilities allow the board to accommodate relatively dense circuit layouts and compact electronic designs.

The actual manufacturing capability depends on the selected material, copper thickness, layer structure and final Gerber files.

Flexible Copper Thickness

Copper thickness can range from 0.5oz to 6oz.

This allows the same basic PCB platform to be configured for different electrical requirements, from conventional signal and control circuits to applications requiring increased current carrying capability.

The appropriate copper thickness should be selected according to the current requirements, trace dimensions and thermal design of the application.

Multilayer PCB Construction

The PCB supports 2 to 32 layers.

Multilayer construction provides additional routing space for power, ground and signal circuits while allowing more complex electronic functions to be integrated into a compact board.

The final layer count can be selected according to circuit density, signal integrity, power distribution and mechanical requirements.

Signal Integrity and Electrical Performance

The PCB is designed to provide stable electrical characteristics for electronic circuits requiring reliable signal transmission.

Impedance testing is available as part of the PCB inspection process, allowing controlled-impedance requirements to be verified when specified in the design.

For high-speed or sensitive circuits, the stack-up, trace geometry, dielectric material and impedance requirements should be defined before production.

Applications

Industrial Control Systems

The compact ENIG FR4 PCB can be used in industrial control equipment, automation systems and electronic control modules.

The available multilayer configurations provide flexibility for routing control, power and communication circuits.

Consumer Electronics

The 5x7cm format is suitable for compact consumer electronic products where PCB space is limited.

ENIG provides a flat surface for component assembly and can support fine-pitch electronic components.

Communication and Networking Equipment

The PCB can be used in communication and networking equipment requiring stable signal transmission and controlled electrical characteristics.

Multilayer configurations can provide additional routing space for communication, power and control circuits.

Medical Instruments

The board can be integrated into medical instruments and electronic measurement equipment where consistent PCB manufacturing and reliable electrical performance are required.

The final PCB specification should be selected according to the requirements of the specific medical device.

Automotive Electronics

High-TG FR-4 can be selected for automotive electronic applications requiring improved thermal resistance.

The PCB can be customized for automotive control modules, electronic interfaces and other vehicle-related electronic systems.

IoT and Smart Home Devices

The compact size and multilayer capability make the PCB suitable for IoT devices, smart home products, sensors and connected electronic equipment.

The board dimensions and circuit structure can be adapted to the enclosure and functional requirements of the finished product.

LED Lighting and Display Modules

The PCB can be used in LED lighting and display-related electronic modules where compact dimensions and reliable solderability are required.

Copper thickness can be selected according to the current and thermal requirements of the LED circuit.

Power Supply and Charging Modules

The PCB can be used in power supply and charging modules where copper thickness and thermal performance need to be matched to the power requirements.

For higher-current designs, heavier copper configurations can be selected.

Technical Specifications

PCB Inspection and Testing

The PCB can undergo AOI, flying probe testing, electrical testing and impedance testing according to the project requirements.

These inspection processes can be used to verify solder pads, circuit connections, electrical continuity and controlled-impedance requirements before shipment.

Production is available for prototype, small-batch and volume requirements.

Custom PCB Manufacturing

Although 5x7cm is the standard size, the PCB can be customized according to the customer's Gerber files and technical specifications.

Board size, shape, layer count, copper thickness, board thickness, material and surface finish can be adjusted for different applications.

The PCB can also be used as part of a complete PCBA project when component assembly is required.

Compact ENIG FR4 PCB for Electronic Products

The 5x7cm Immersion Gold ENIG FR4 PCB combines a compact board format with ENIG surface finishing, FR-4 or High-TG FR-4 material and high-precision PCB fabrication.

With 2–32 layer capability, 0.5–6oz copper, 3mil/3mil minimum line width and spacing, and a 0.15mm minimum hole size, the PCB can be configured for a wide range of industrial, automotive, communication, consumer and embedded electronic applications.