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How Engineers Can Fit Eight RF Channels on a Crowded Board

SV Microwave’s SMPM Mini-D family groups eight board-to-board RF ports, with surface-mount and edge-launch PCB connector options. Check the exact part datasheet before specifying its frequency and mechanical ratings.
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SV Microwave’s SMPM Mini-D family groups eight RF ports in a board-to-board interconnect: an eight-port ganged cable assembly mates with an eight-port PCB connector, offered in surface-mount and edge-launch configurations. SV Microwave states that the SMPM interface supports DC to 40 GHz. That is a manufacturer’s family-level specification, not an independently measured result or a guarantee for every part and build.

What the eight-port system includes

The SMPM Mini-D family combines a compact multiport format with an SMPM interface. Its system comprises a ganged eight-port RF cable assembly and matching eight-port PCB connector halves. Grouping the connections provides a way to route multiple board-to-board RF channels through one connector arrangement; the available material does not establish a specific board-area saving.

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SV Microwave describes the design as intended to support consistent electrical performance and mechanical alignment across channels. These are manufacturer-stated design benefits, not independently verified comparative results. SV Microwave’s SMPM Mini-D family page provides product information and technical downloads.

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Which connector configuration fits the board?

Surface-mount

The surface-mount PCB half is intended for attachment to the board surface. SV Microwave lists the eight-port surface-mount connector as part 9311-00078. Review its datasheet and CAD resources against the board layout and assembly process before committing the footprint.

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Edge-launch

The edge-launch PCB half is an alternative when the RF transition is made at the board edge. The listed eight-port edge-launch connector is part 9311-00077. Choose it based on the intended board transition and physical layout rather than assuming it is interchangeable with the surface-mount version.

For either option, confirm the selected part’s footprint, mechanical details, electrical ratings, and compatibility with the cable assembly using the current part-specific documentation. SV Microwave cautions that typical specifications for the connector series may not apply to a particular part.

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  • Standard (11 bit) and extended (29 bit) data and remote frames Industrial standard 9 pin sub-D connector
  • Two receive buffers with prioritized message storage Operating voltage: DC5-12V

Parts identified by SV Microwave

  • 7093-5127: eight-port ganged cable assembly. SV Microwave’s part page describes it as an SMPM Mini-D RF female to eight 2.92 mm male, six-inch cable assembly for .085 cable. Verify the exact configuration and mating requirements in the current documentation.
  • 9311-00077: eight-port edge-launch PCB connector.
  • 9311-00078: eight-port surface-mount PCB connector.

Check the latest datasheet revision and confirm mating compatibility before specifying any combination. The 9311-00078 product page and 7093-5127 product page provide details and technical resources for those listed components.

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How to evaluate it for an RF design

  1. Choose the board attachment: decide whether surface-mount or edge-launch better matches the PCB layout and the required transition into the board.
  2. Confirm the cable and mating arrangement: check the assembly configuration and connector compatibility for the specific parts, rather than relying on the family name alone.
  3. Check the part-level ratings: use the current datasheet for the chosen connector and cable assembly. The family’s stated DC-to-40-GHz range should not be treated as a guaranteed rating for every configuration.
  4. Validate the physical design: review the PCB footprint, CAD model, mechanical alignment, and installation constraints before design release.
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Where SV Microwave says it may be used

SV Microwave lists test and instrumentation, bench-top testing, automated test equipment, airborne radar, and Mil-Aero among the application areas. These examples describe intended uses; they do not establish qualification for a particular instrument, aircraft, defense system, or environmental requirement. Check project-specific electrical, mechanical, and qualification needs against the applicable part documentation.

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