SMS

The SMS connectors have been designed with a 'slide on' coupling and have the same size as the SMB connectors. They are particularly suitable for rack and panel applications.

This connector range is suitable for the standard ranges of flexible and semi-rigid cables and is also available in PCB and panel mount versions.

The characteristic impedance of the SMS coaxial connectors is 50 ohm.

top

Electrical characteristics

Impedance	50 Ohm
Operating frequency	4 GHz
VSWR-Value Straight connector semi-rigid cable Angle connector semi-rigid cable Straight connector flexible cable Angle connector flexible cable	1,03 + 0,03 f 1,03 + 0,04 f 1,04 + 0,05 f 1,05 + 0,05 f
Withstand voltage (depending on cable type) Dielectric dia 1,5 mm Dielectric dia 0,87 mm	≥ 1000 V / 50 Hz ≥ 750 V / 50 Hz
Operating voltage (depending on cable type) Dielectric dia 1,5 mm Dielectric dia 0,87 mm	≤ 335 V / 50 Hz - 450 V / DC ≤ 250 V / 50 Hz - 350 V / DC
RF-leakage	≥ 55 dB-f (GHz) 90 dB-f (GHz)
Insulation resistance	≥ 10 GOhm
Contact resistance Center contact Outer contact	≤ 5,0 mOhm ≤ 2,5 mOhm
Current carrying capacity	≤ 1,5 A DC
Admissible power (depends on: frequency, application, design, VSWR, environmental characteristics)	Data on Request

top

Mechanical characteristics

Engagement force	max. 10 N
Disengagement force	min. 2 N - max. 10 N
Mating cycles	> 500

top

Environmental specification

Operating temperature range	-55° C (-67° F) up to +125° C (257° F)
Test categories	DIN 40045 / IEC 55/125/56
Relative humidity	MIL-STD-202 Method 106
Thermal shock	MIL-STD-202 Method 107 Cond.B
Shock	MIL-STD-202 Method 213 Cond.J
Vibration	MIL-STD-202 Method 204 Cond.B

top

Materials

Housing	Brass Diecast
Center Contact	Brass
Spring Loaded Contact	Copper beryllium Bronze
Spring washer	Copper beryllium
Crimp ferrule	Copper Brass
Lock washer	Bronze
Insulator	PTFE
Gasket	Silicone rubber
All products are RoHS conform.

top

Plating

Housing	Au, White bronze
Center contact	Au
Spring loaded contact	Au, White bronze
Spring washer	Au, White bronze
Crimp ferrule	Au, White bronze
Lock washer	Au, White bronze
Other platings on request.