Straight · right-angle / male · female / standard · reverse polarity — full-spec one-stop selection, DC–26.5 GHz RF interconnect solutions.
Straight / Right-angle · Male / Female · Standard / Reverse Polarity · DC–26.5 GHz
SMA (SubMiniature version A) is a 50 Ω threaded RF coaxial connector developed in the 1960s by Bendix / Omni-Spectra, using 1/4-36 UNEF threads. Its excellent electrical performance and compact size make it widely used in test & measurement, satellite communications, 5G base stations, and Wi-Fi RF front ends. This page summarizes all SMA variants—straight / right-angle, male / female, standard / reverse polarity (RP-SMA), and PCB-mount—to help you select from a single page, with product photos and dimensional tables.
Below are Coaxwave’s standard SMA connector photos and interface dimensions. All dimension labels correspond to one mechanical drawing set (Plug / Jack), in millimeters. PCB-mount variants add solder tails to the standard interface for vertical or horizontal board mounting.
The left drawing shows the plug (male) structure; the right shows the jack (female). Labels A through K are tabulated in each product card below.
Straight plug with pin center conductor for RF cable termination or equipment panel output; coupling nut has internal threads.
| Dim | Min mm | Max mm |
|---|---|---|
| A | 6.35 | — |
| B | 4.53 | 4.59 |
| C | 2.56 | 3.43 |
| D | 0 | 0.18 |
| E | 1.91 | 2.56 |
| F | 0 | 0.25 |
| G | 0.90 | 0.94 |
| H | 0 | 0.38 |
| J | 1.25 | 1.30 |
| K | 4.10 | 4.13 |
A is a minimum guaranteed length; no upper limit.
90° right-angle plug for chassis internal wiring or panel-against-wall scenarios, saving normal-direction space.
| Dim | Min mm | Max mm |
|---|---|---|
| A | 6.35 | — |
| B | 4.53 | 4.59 |
| C | 2.56 | 3.43 |
| D | 0 | 0.18 |
| E | 1.91 | 2.56 |
| F | 0 | 0.25 |
| G | 0.90 | 0.94 |
| H | 0 | 0.38 |
| J | 1.25 | 1.30 |
| K | 4.10 | 4.13 |
Interface dimensions match straight plug; bend direction can be customized.
Straight jack with socket center conductor and bulkhead nut, commonly used for panel mount or cable termination; body has external threads.
| Dim | Min mm | Max mm |
|---|---|---|
| A | 5.28 | 5.49 |
| B | 4.60 | 4.67 |
| C | 1.88 | 1.98 |
| D | 0 | 0.18 |
| E | 0.38 | 1.41 |
| F | 2.92 | — |
| G | 0 | 0.08 |
| H | 4.32 | — |
| J | 1.25 | 1.30 |
| K | 5.54 | — |
F, H, K are minimum guaranteed dimensions; bulkhead length can be customized.
90° right-angle jack for dense cabinet internal wiring; cable exits perpendicular to the connector axis.
| Dim | Min mm | Max mm |
|---|---|---|
| A | 5.28 | 5.49 |
| B | 4.60 | 4.67 |
| C | 1.88 | 1.98 |
| D | 0 | 0.18 |
| E | 0.38 | 1.41 |
| F | 2.92 | — |
| G | 0 | 0.08 |
| H | 4.32 | — |
| J | 1.25 | 1.30 |
| K | 5.54 | — |
Interface dimensions match straight jack; bend direction can be customized.
90° right-angle PCB-mount plug with solder tails for direct attachment to RF front-end boards, used as antenna ports or test points.
| Dim | Min mm | Max mm |
|---|---|---|
| A | 6.35 | — |
| B | 4.53 | 4.59 |
| C | 2.56 | 3.43 |
| D | 0 | 0.18 |
| E | 1.91 | 2.56 |
| F | 0 | 0.25 |
| G | 0.90 | 0.94 |
| H | 0 | 0.38 |
| J | 1.25 | 1.30 |
| K | 4.10 | 4.13 |
Interface matches standard plug; solder-tail pitch and length can match PCB layout.
90° right-angle PCB-mount jack, commonly used as a Wi-Fi / Bluetooth module antenna seat, supports horizontal or vertical soldering.
| Dim | Min mm | Max mm |
|---|---|---|
| A | 5.28 | 5.49 |
| B | 4.60 | 4.67 |
| C | 1.88 | 1.98 |
| D | 0 | 0.18 |
| E | 0.38 | 1.41 |
| F | 2.92 | — |
| G | 0 | 0.08 |
| H | 4.32 | — |
| J | 1.25 | 1.30 |
| K | 5.54 | — |
Interface matches standard jack; solder-tail form and ground-pin count can be customized.
The connector axis is coaxial with the cable, giving the lowest straight-through loss. Ideal for equipment panels and cable interconnects where space is ample and insertion loss is critical — e.g. VNA test leads and base-station RF links.
The connector axis meets the cable at 90°, saving internal chassis space. Suited to high-density racks, wall-mounted panels and constrained routing — at the cost of slightly higher insertion loss than a straight part.
Pin centre conductor with an internally threaded coupling nut. Typically used as an equipment panel output or cable-termination plug, screwing into a female for a locked joint.
Socket centre conductor with an externally threaded body. Used for cable termination or panel input ports, accepting a male plug to form a well-shielded coaxial channel.
RF cables for vector network analyzers, DC–26.5 GHz; precision grade for de-embedding and calibration.
On-board and ground-terminal RF links across L / S / C bands, using standard-polarity male/female screw-lock joints.
AAU / RRU RF ports and clock distribution; miniaturised high-frequency precision interconnect.
Routers / gateways mostly use RP-SMA (reverse polarity) to prevent mis-insertion into standard-polarity equipment.
Internal chassis wiring, wall-mounted panels → choose right-angle; 90° exit saves space at the cost of slightly higher loss.
Router external antennas → choose reverse-polarity RP-SMA; the swapped pin/socket design prevents mis-insertion into standard equipment.
VNA de-embedding, >18 GHz → choose precision-grade SMA (DC–26.5 GHz) for better VSWR and insertion-loss margin.
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