Subminiature push-on (SMP) connectors are plug-in connectors for applications up to 40 GHz. These connectors are easy to connect and disconnect as they can be pushed against each other to make a connection and pulled apart to open the connection. They don't need to be tightened like most other connectors. The force required to connect or disconnect an SMP connector is called the detent. SMP connectors are available in three different brake systems - full bore, limited bore and smooth bore, with respective levels of engagement/disengagement force. They are available in both push-in and snap-in versions.
These connectors can be used in board-to-board systems using floating bullets, which provide a link between mated pairs to compensate for radial and axial misalignment.
Key Specifications of SMP Connectors:
Impedance: 50 ohms
Frequency Range: DC to 40 GHz
Dielectric withstand voltage: 500 Vrms at sea level
RF Leakage: 80 dB max. 65 dB max at 3 GHz. at 26.5GHz
Temperature range: -65 to 165 degrees Celsius
100 cycles minimum into a full brake housing
500 cycles minimum into limited brake housing
1000 cycles minimum into smooth bore guard
Radial deviation: +/-0.25mm
Axial deviation: 0/+0.25mm (with fixed length adapter)
Mating method: push-in or snap-in
Dimensions: The outer diameter of the interface is approx. 3.30mm
Military Specification: Can be used in defense and space applications (MIL-SPEC: MIL-STD-348).
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