Product Overview

The SMB-75JWE is a 75 Ohm right angle SMB RF connector designed for compact PCB and electronic equipment applications. Its right-angle configuration helps make better use of limited board and enclosure space, while the SMB interface provides a quick and practical RF connection.

We designed this connector for projects where 75 Ohm impedance, compact size, and convenient PCB installation are important. It is suitable for RF signal transmission and can be used in communication equipment, video systems, test instruments, and other electronic devices.

For customers who need a connector matched to a specific PCB layout or RF assembly, we can also discuss dimensions, materials, plating, and production requirements according to the application.

How It Works

An RF connector provides the electrical transition between the PCB transmission line and the external coaxial or RF interface.

The SMB-75JWE maintains the RF signal path through its center contact and outer conductive structure. The insulating material separates the signal conductor from the outer conductor, while the connector geometry helps maintain the required 75 Ohm impedance through the interface.

The SMB coupling system is designed for quick mating and unmating. In practical RF assemblies, the connector should be used together with a compatible 75 Ohm cable, PCB transmission line, and mating connector to minimize impedance discontinuity and signal reflection.

Electrical

Impedance	75Ω
Frequency Range	0-3GHz
Working Voltage	≤335V
VSWR	≤1.2
Insulation Resistance	≥1000mΩ
Withstanding Voltage	1000V
Center Contact Resistance(mΩ)	≤6
Outer Contact Resistance(mΩ)	≤1
Durability	500 cycles

Material and Plating

	Material	Plating
Body	Brass	Gold
Center conductor	Brass	Gold
Crimp Ferrule	Brass	Gold
Insulator	PTFE

Environmental

Temperature Range	-40℃ ~ +125℃
Humidity	＜95％
Salt-fog Test	48h

Connector Structure

The main parts of an SMB-75JWE connector include:

Center Contact
Transfers the RF signal between the PCB and mating interface.

Insulator
Separates the center contact from the outer conductor and provides electrical insulation.

Outer Body
Provides the RF return path and shielding while also supporting the mechanical structure.

SMB Mating Interface
Provides the connection with the corresponding SMB mating connector.

PCB Termination Section
Connects the connector to the PCB and maintains the mechanical and electrical relationship between the connector and board.

The right-angle structure is particularly useful when the RF connection needs to turn immediately after leaving the PCB.

Application Areas

The SMB-75JWE can be considered for RF systems where a 75 Ohm right-angle SMB jack interface is required.

Typical application areas include:

Video and Signal Transmission

75 Ohm RF interfaces are commonly used in equipment handling video or other 75 Ohm signal paths. The compact right-angle structure can simplify connector placement inside equipment.

Communication Equipment

The connector can be used as part of RF interconnections in communication modules and related electronic equipment where a compact 75 Ohm interface is required.