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Bel Fuse-RF Adapters - Between Series Adapter Assembly 1.85mm Male / SMP3 Male

16 January 2023

Bel Fuse introduces the new SMP3 family of connectors.

Bel Fuse-RF Adapters - Between Series Adapter Assembly 1.85mm Male / SMP3 Male

miniature push-on style connectors. It follows the prior generation SMPM and SMP connectors. SMP3 is more miniaturized (approximately 30% smaller than SMPM) and operates to 67 GHz by design. It is ideal for applications where there is high shock and vibration. The design is similar to SMPM and SMP for its utilization of a floating bullet. This helps compensate for axial and radial misalignment when mating. This also helps maintain a high performance retention in rugged military applications. The sub-miniature, push-on connector interface is known for its blind mate capability. The smaller profile allows design engineers to fit the interconnects into dense packaging area.
Environmental Specification
Meets or exceeds the applicable paragraph of MIL-PRF-39012
Operating temperature -65 C to +165 C
Thermal shock MIL-STD-202, Method 107, Condition B
Corrosion/Salt Spray MIL-STD-202, Method 101, Condition B
Vibration MIL-STD-202, Method 204, Condition D
Mechanical Shock MIL-STD-202, Method 213, Condition I
Moisture resistance MIL-STD-202, Method 106 (except step 7b omitted)
Mechanical Specification
Interface Design: MIL-STD-348A, Series SMP3
Engagement Force (pounds maximum, mated pair) Full detent (FD) 2.5
Disengagement Force(pounds minimum, mated pair) Full detent (FD) 4.5
Mated Radial Misaligment Between centerlines of mating planes 0.010
Mated Axial Misalignment Between mating planes
Durability (mating cycles minimum) Full detent (all connectors and adapters) 100.
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