SMB (50 Ohm)

The SMB connectors incorporate a 'snap on' latching action for ease of connection.

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 SMB coaxial connectors is 50 ohm. The 75 ohm version is known as SMZ coaxial connector.

SMB coaxial connectors (50 ohm) meet the specification of
IEC 169-10 and MIL-C-39012.

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 (GHz) 1,03 + 0,04 f (GHz) 1,04 + 0,05 f (GHz) 1,05 + 0,05 f (GHz)
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)
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

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.D

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