This standard specifies the detailed requirements for SSMA type RF coaxial connectors. This standard is used together with GB 11313-89 "General Specification for RF Coaxial Connectors". GB/T 15889-1995 SSMA type RF coaxial connector GB/T15889-1995 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
SSMA type RF coaxial connectors
RF coaxial connectors, type SSMA1 Subject content and scope of application
1-1 Subject content
This standard specifies the detailed requirements for SSMA type RF coaxial connectors. This standard is used together with GB11313-89 "General Specification for RF Coaxial Connectors". 1.2 Scope of application
GB/T15889-:1995
This standard applies to SSMA type RF coaxial connectors with threaded connection mechanism for connecting soft and semi-rigid RF coaxial cables in the RF circuit of low-power radio equipment and electronic instruments, with a characteristic impedance of 500. 1.3 Model naming
1.3.1 Composition of model
The model of SSMA type RF coaxial connector consists of three parts: main name code, structural type code and cable specification code, as shown below:
1.3.1.1 Structural type code
The structural type code is as follows:
Approved by the State Administration of Technical Supervision on December 22, 1995 XXXX - XX
Cable specification code
Structural type code
Main code
1996-08-01implementation
GB/T 158891995
Specification code of cable (indicates cable, see Table 1)Inner and outer conductors of connector and cable are weldedInner conductor of connector and cable is welded, and outer conductor is tight3
Inner conductor of connector and cable is welded, and outer conductor is crimpedInner and outer conductor of connector and cable are crimpedInner conductor of connector and cable is crimped, and outer conductor is clampedInner and outer conductors of connector and cable are clampedNot connected to cable
Connector's part is connected to microstrip
Free-terminated cable
Flange-mounted cable
Nut-mounted cable
Printed circuit installation
Flange-mounted cable
Nut-mounted cable
Free-end adapter
Nut-mounted adapter
Flange-mounted adapter
Straight connector (adapter)
Angled connector (adapter)
T-shaped connector
Straight sealed connector (adapter)
Angled sealed connector (adapter)
Socket connector
Pin connector
Pin-to-pin adapter
Hole-to-hole adapter
Pin-to-hole adapter
Pin-to-pin adapter
Hole-hole-hole adapter
Pin-hole-pin adapter
Hole-pin-hole adapter
Connector without center contact
Note: 1) The adapter is marked as SSMA×××, remove the last "\×"; 2) Connectors that do not connect cables do not have cable specification codes. 1.3.1.2 Cable specification codes
The cable specification codes are shown in Table 1.
Cable specification code
1.3-2 Model composition example
Model composition examples are as follows:
Example 1: 5SMA1103-02
GB/T15889—1995
Table 1 Cable specification code
Cable model
SFF-50-1 SYV-50-1
SFT-50-2
Indicates a pin straight connector, equipped with SYV-50-1 cable, the cable installation method is inner conductor welding, outer conductor crimping. Example 2: SSMA0157
Indicates a hole straight connector, nut installation form, no cable. Example 3. SSMA217
Indicates a pin-to-pin straight nut installation adapter. 1.4 Grades
SSMA type RF coaxial connectors are divided into: standard test connectors, marked as GO; core level-
1-level high-performance connectors, marked as G1.1.5 Rated values
1.5.1 Frequency range
The connectors for connecting cables can work effectively in the frequency range of 0 to 30 GHz according to the requirements of this standard. 1.5.2 Rated voltage
250 V (effective value) at sea level.
65 V (effective value) under 4.4 kPa air pressure conditions. 1.6 Climate category
The preferred climate category is;
55/155/21 (for connecting polytetrafluoroethylene flexible cables); 40/085/21 (for connecting polyethylene flexible cables); 55/155/21 (for connecting semi-rigid cables).
2 Reference standards
GB11313-89 General specification for RF coaxial connectors GB1227089 Electrical test and test procedures for RF coaxial connectors Shielding efficiency GB/T14557--93 Electrical test and measurement procedures for RF coaxial connectors Reflection coefficient 3 Technical requirements
3.1 Structural dimensions
3.1.1 High-performance connector (level 1)
All structures without marked dimensions in Figures 1 and 2 are for reference only. 3.1.1.1 Pin center contact connector (plug connector) See Figure 1 Code
Note: ① Reference plane.
GB/T15889
1—1995
Detail of center contact
2.80 Nominal value
45°0.08 or 0.08m Radius
45°0.003m or 0.003m Balance circlewwW.bzxz.Net
② Dimensions
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