SMM

The SMM connectors incorporate a 'snap on' latching action for ease of connection and are suitable for Surface Mount Technology (SMT). Because of their small physical size the use of automatic pick and place machines is feasable.

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

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

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Electrical characteristics

Impedance	50 Ohm
Operating frequency	DC - 6 GHz
VSWR-Value	1,1 at 2 GHz
Withstand voltage (depending on cable type)	≥ 500 V / 50 Hz
Operating voltage (depending on cable type)	≤ 150 V / 50 Hz
Insulation resistance	≥ 5 GOhm
Contact resistance Center contact Outer contact	≤ 10 mOhm ≤ 3 mOhm

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Mechanical characteristics

Engagement force	max. 20 N
Disengagement force	min. 6 N
Mating cycles	≥ 50

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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

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Materials

Housing	Brass Diecast
Center Contact	Brass
Spring Loaded Contact	Beryllium copper Bronze
Crimp ferrule	Copper Brass
Insulator	PTFE
All products are RoHS conform.