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.

