SMPM SPRINGED ADAPTOR

Mechanical Compliance and Mating Dynamics

SMPM micro-miniature connectors are intrinsically engineered for high-density, high-frequency environments, featuring a footprint 20% smaller than standard SMP interfaces. The primary advantage of the push-on design is its ability to facilitate fast, secure mating cycles in blind-mate test configurations or compact surface-mount assemblies.

the ADR Technology SMPM Jack-to-Jack Adaptor (P/N: CMR-2521-S000) implements a specialized, spring-loaded push-on design.

Electrical Performance and RF Integrity

Optimized for high-reliability systems, this 50-ohm characteristic impedance adaptor maintains a low-reflection profile. While general SMPM interfaces exhibit operational bandwidths capable of reaching up to 65 GHz, the mechanical compliance framework of this spring-loaded probe ensures robust RF containment with a maximum Voltage Standing Wave Ratio (VSWR) restricted to 1.4 Max. Transmission attenuation is tightly controlled, yielding a maximum insertion loss of just 0.5 dB across its optimized operational spectrum.

Contact resistance across the mated interface minimized via optimized metallization paths:

• Outer Ground Path Contact Resistance: 2mΩ

• Center Signal Pin Contact Resistance: 6mΩ

High-Reliability Material Science

To sustain reliable micro-coaxial mating cycles within harsh environment defense, aerospace, and high-speed instrumentation applications, the adaptor utilizes materials qualified for an industrial temperature range spanning -40 to +85 degree Celsius.

Both the center signal pin and the outer ground contact precision-machined from beryllium copper, a substrate selected for its exceptional spring retention and structural memory. The center contact treated with a heavy gold plating over nickel to optimize conductivity and prevent fretting corrosion over repeated insertion cycles. The outer contact features a protective gold plating to guarantee robust ground shell connectivity. Internal isolation preserved by an "Ultem 1000" polyetherimide dielectric insulator, chosen for its excellent dimensional stability, low outgassing profile, and rigid dielectric constant.

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