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What are SSMP or SPMP connectors?
SSMP connectors, also known as SPMP connectors, are high frequency blind-mate/push-on connectors that typically operate up to 40 GHz (can go up to 65 GHz with certain precision designs). These connectors are a miniaturized version of the standard SMP connector. SSMP connectors are about 30% smaller than SMP connectors. This connector interface was developed to improve package density of RF/Microwave systems.
SSMP connectors are now an industry standard for RF & Microwave Applications (as per the MIL-STD-348 document). The interface enables design engineers to improve performance and increase the complexity of designs while reducing the form factor.
The original SMP connector was developed by the Gilbert company (now Corning Gilbert) during the 1980's under the trade name GPO, or "Gilbert push-on". The SMPM / SSMP connector series was developed not long after. These connectors boast durable construction and have the ability to tolerate radial and axial misalignment. This hence, allows a blindmate interconnect solution to withstand multiple engagement/disengagement cycles without degradation in electrical performance.
SMPM or SSMP connectors are typically used to make board-to-board connections. They are found in military and high-grade commercial systems such as in phased arrays, airborne radar, active antennas, satellites, and a range of other radar systems.
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