BOM console for a blind-mate RF brief
smp rf connector manufacturers
LinkScope Sourcing 35 is an independent sourcing partner. The desk writes the SMP requirement, asks plants for factory quotations, and lines the replies up on one scope. It is not a connector manufacturer or authorized distributor, and it does not claim authorized distributor status.
- Interface: full detent, limited detent, or smooth bore, plus gender and whether a bullet sits between two shrouds.
- Frequency range and impedance, usually a 50 ohm question, with the VSWR or return loss limit tied to that window.
- Power rating, board launch or cable attachment, and the host the part must mate with.
- Quantity, US destination, requested timing, and the datasheet or test record you want attached to the exact model.
Quote scope before a piece figure is read
Public SMP and GPO outlines often discuss a 50 ohm interface and a frequency window that can reach 40 GHz. That sentence is a question, not a rating of any offer on this desk. Ask each plant to name the model, the frequency range on its curve, and whether the VSWR limit is 1.20:1 or 1.35:1, and to which gigahertz.
| Line | What the reply should state | What stays outside the piece price |
|---|---|---|
| Body and finish | Brass or stainless body, center-contact alloy, and gold thickness such as 1.27 μm if that is the callout. | Plating premium and any minimum lot for that finish. |
| RF limits | Impedance, frequency range, VSWR or return loss, insertion loss, and power rating with the test condition. | A swept curve that was measured on a different series. |
| Mechanical | Detent style, connector mating cycle count, and the method, such as an IEC 60512 sequence. | A cycle number copied from a catalog family page. |
| Commercial | Quantity, currency, per-piece or whole-order basis, Incoterm, and US destination. | Freight, duties, adapters, and a torque tool if they are excluded. |
MIL-STD-348 can frame an interface-dimension question. It does not certify the lot you might buy. FCC equipment authorization under 47 CFR Part 2 Subpart J, when it applies, belongs to the radio or the intentional radiator, not automatically to a passive SMP body. Ask the plant which document covers the exact proposed item.
Where an SMP body sits in a radio path
Use the layer that matches the hardware you already have. A name match between layers is not interoperability.
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Board launch
Edge-mount or surface-mount shrouds need the footprint, ground vias, and the launch the board house already tooled. A 50 ohm trace and a 50 ohm SMP shroud still need the drawing that shows pin length.
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Cable bullet
A bullet between two shrouds is a separate part. Record length, detent on each end, and the cable dielectric. Insertion loss on a 100 mm jumper is not the loss of the shroud alone.
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Panel feedthrough
Panel thickness, flat size, and whether the jam nut is supplied change the quote. Ingress protection, if requested, applies to the sealed stack on the drawing, not to every SMP bullet in the bin.
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Outdoor jumper handoff
Many shelter jumpers leave the radio on a threaded series and adapt toward a board. Keep that adapter as its own line so an N-type thread is not priced as an SMP shroud. Site uses for threaded bulkheads are on the n type rf connector manufacturers page.
Compatibility questions for an SMP brief
Does a photo of a shroud prove the detent?
No. Full detent, limited detent, and smooth bore change the engage and withdraw force. Ask which half carries the fingers. Two parts can look similar and still refuse to stay mated on a vibrating radio card.
Is 50 ohm interchangeable with 75 ohm?
Treat them as different interfaces until the drawing says otherwise. Impedance, pin diameter, and the frequency range of return loss should sit on the same sheet. A 75 ohm video body is a poor assumption for a 50 ohm board launch.
Can a compatible body replace a named-interface body?
A named-interface body may follow the host drawing more directly. A compatible body may widen the plant list after detent, pin length, and plating are checked on the exact model. Neither side is chosen on this page. New bodies and refurbished bodies are a second split: surplus lots need wear, plating, and lot-trace notes before they are compared with unused parts.
What evidence should travel with the quote?
Ask for the current datasheet, the interface callout, a VSWR or return loss plot with its frequency range, the power rating condition, and the connector mating cycle method. A family brochure is not that packet. The procurement brief lists the same fields in article form.
Compare two SMP replies on one sheet
Put model, detent, frequency range, impedance, VSWR limit, plating, quantity, currency, Incoterm, and exclusions in two columns. Read the piece figures after those cells match. A missing gasket or a missing bullet is a different offer, even when both headers say SMP.
In a 2025 board-spin example, a buyer in Texas named 400 shrouds and a Dallas destination but left detent blank. The desk sent the brief back. The buyer then marked limited detent, 50 ohm, and a requested VSWR of 1.25:1 through 18 GHz. Later replies could be read side by side. That scene is a handling example, not a measured saving and not a client endorsement.
Optional budget text needs a currency and a per-piece or whole-order basis. High-end, mid-range, budget, or undecided is a buyer preference, not a plant score. Continue on the requirement form if the dialog is too narrow for the note.