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Basic Introduction to Connectors

Nov 01, 2025 Leave a message

Connector Characteristics

Due to the increasing diversity of connector structures and the continuous emergence of new structures and application areas, attempting to solve classification and naming problems using a fixed model is no longer adequate.

 

1. Usage Nature

External connectors (for external housings), internal connectors (for internal housings).

 

2. Connector Levels

Level 1. Device to Packing: Connection between IC chip and pins.

Level 2. Package to Circuit Board: Connection between the component and the PCB.

Level 3. Board to Board: Connection between PCBs.

Level 4. Subsystem to Subsystem

Level 5. Subsystem to I/O Port.

Level 6. System to System Connection.

 

3. By Manufacturing Method

Crimp Type, I.D.C Type (also known as piercing type), Solder Type, Zero Insertion Type (Z.I.F Type).

 

4. By Application

Wire-to-board connectors, board-to-board connectors, wire-to-wire connectors, sockets, input/output connectors.

 

5. By Form

PCB board connectors, flat cable connectors, coaxial cable connectors, embedded connectors, spool connectors, circular connectors, angle connectors, connectors for printed circuit boards.

 

6. By Structure

General type connectors, moisture-proof and waterproof connectors, environmentally friendly connectors, hermetic connectors, fire-resistant connectors, water-resistant connectors.

 

7. By Operating Frequency

Low frequency and high frequency (with 3MHz as the dividing line).

 

8. By Universality and Related Technical Standards

a. Low-frequency circular connectors.

b. Rectangular connectors.

c. Printed circuit board connector.

d. Radio frequency connector.

e. Fiber optic connector.

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