The model of the universal frequency connector consists of the main name code and the structure type code, separated by a short horizontal line “-“. Other conditions that need to be explained can be specified in the detailed specification and separated from the structural form code by a short horizontal line.

The main name code of general RF connector shall be the main name code commonly used at home and abroad. The main name code of special products shall be specified in the detailed specification.

Type N rf coaxial connectors : threaded RF coaxial connector with inner diameter of outer conductor of 7mm (0.276 inch) and characteristic impedance of 50 Ω (75 Ω). (IEC169-16)

BNC type rf coaxial connectors: Bayonet locked RF coaxial connector with inner diameter of outer conductor of 6.5mm (0.256 inch) and characteristic impedance of 50 Ω. (IEC169-8)

TNC type rf coaxial connectors: threaded RF coaxial connector with inner diameter of outer conductor of 6.5mm (0.256 inch) and characteristic impedance of 50 Ω. (IEC169-17)

SMA type rf coaxial connectors: threaded RF coaxial connector with inner diameter of outer conductor of 4.13mm (0.163 inch) and characteristic impedance of 50 Ω. (IEC169-15)

SMB type rf coaxial connectors: push locking RF coaxial connector with inner diameter of outer conductor of 3mm (0.12 inches) and characteristic impedance of 50 Ω. (IEC169-10)

SMC type rf coaxial connectors: threaded RF coaxial connector with inner diameter of outer conductor of 3mm (0.12 inches) and characteristic impedance of 50 Ω. (IEC169-9)

SSMA type rf coaxial connectors: threaded RF coaxial connector with inner diameter of outer conductor of 2.79mm (0.11 inches) and characteristic impedance of 50 Ω. (IEC169-18)

SSMB type rf coaxial connectors: push in locking RF coaxial connector with inner diameter of outer conductor of 2.08mm (0.082 inch) and characteristic impedance of 50 Ω. (IEC169-19)

SSMC type rf coaxial connectors: threaded RF coaxial connector with inner diameter of outer conductor of 2.08mm (0.082 inch) and characteristic impedance of 50 Ω. (IEC169-20)

SC type (SC-A and sc-b) rf coaxial connectors: RF coaxial connector with inner diameter of outer conductor of 9.5mm (0.374 inch) and characteristic impedance of 50 Ω (two models have different types of connection threads). (IEC169-21)

Apc7 type rf coaxial connectors: precision medium-sized RF coaxial connector with inner diameter of outer conductor of 7mm (0.276 inch) and characteristic impedance of 50 Ω. (IEC457-2)

Apc3.5 type : threaded RF coaxial connector with inner diameter of outer conductor of 3.5mm (0.138 inch) and characteristic impedance of 50 Ω. (IEC169-23)

Type K: threaded RF coaxial connector with inner diameter of outer conductor of 2.92mm (0.115 inch) and characteristic impedance of 50 Ω.

Os-50 type: screw type RF coaxial connector with inner diameter of outer conductor of 2.4mm (0.095 inch) and characteristic impedance of 50 Ω.

Type F: threaded RF coaxial connector used in cable distribution system with characteristic impedance of 75 Ω. (IEC169-24)

Type E: threaded RF coaxial connector used in cable distribution system with characteristic impedance of 75 Ω. (IEC169-27)

Type L: metric screw type RF coaxial connector. The screw connection dimension is indicated by Arabic numerals after “L”.