標準號：BS EN 60169-21-1997
中文標準名稱：射頻聯接器.用螺紋耦合的不同形式的9.5mm外導體的內徑頻聯結器的兩種類型
英文標準名稱：Radio-frequency connectors - Two types of radio-frequency connectors with inner diameter of outer conductor 9,5 mm (0,374 in) with different versions of screw coupling - Characteristic impedance 50 ohms (types SC-A and SC-B)
標準類型：M36
發布日期：1997/12/15 12:00:00
實施日期：1997/12/15 12:00:00
中國標準分類號：M36
國際標準分類號：33.120.30
適用范圍：This specification standardizes the interface and ratings of two versions of a medium size r.f. con-nector for use with flexible and semi-rigid cables. The connectors are recommended to be utilized in medium power and low reflection applications up to 11 GHz. The dielectric filled interface is espe-cially beneficial in applications involving severe environmental exposure. Both versions of this connector type are screw coupled versions of the Type C connector covered by IEC Publication 169-7: Radio-frequency Connectors, Part 7: R.F. Coaxial Connectors with Inner Diameter of Outer Conductor 9.5 mm (0.374 in) with Bayonet Lock—Characteristic Impedance 50 ohms (type C). In this standard, they are considered as two different types and are distinguished by the designations 169-21A respectively 169-21B. Type 169-21A (SC-A) is the older version connector which is still preferred in Europe. Type 169-21B (SC-B) is the newer American design. Both connector types originated in the United States of America. The two types are not intermateable. It is recommended to use only the type 169-21B (SC-B) in new installations.