Molex 0732512120 SMA Jack 50 Ohm Edge Mount Connector Gold
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Molex 0732512120 SMA Jack Connector | 50Ω Edge Mount RF Connector with Gold-Plated Contacts
The Molex 0732512120 (also marked 73251-2120) is a genuine Molex 73251-series SMA jack (female) edge-mount RF connector — designed for PCB board-edge mounting and panel-mount solder applications in RF and microwave designs. The 50Ω impedance matches standard antenna and test-equipment cabling, and the part is rated up to 18GHz for high-frequency applications.
Construction: gold-plated brass body, beryllium copper center contact, PTFE dielectric. Voltage rating 500V. The combination delivers low insertion loss and high return loss across the full DC-to-18GHz band, with strong corrosion resistance for outdoor / industrial deployments.
Where the 0732512120 SMA Jack Fits
- Antenna PCB edge-mount on Wi-Fi, BLE, LoRa, and cellular modules.
- Test equipment input/output ports on signal generators, network analyzers, spectrum analyzers.
- RF chain prototype builds requiring 18GHz-rated connectors.
- IoT and sensor module antenna ports.
Molex 0732512120 SMA Jack Specifications
| Feature | Specification |
|---|---|
| Manufacturer | Molex |
| Series | 73251 |
| Part Number | 0732512120 / 73251-2120 |
| Connector Type | SMA Jack (female socket) |
| Impedance | 50Ω |
| Frequency Range | DC to 18GHz |
| Voltage Rating | 500V |
| Body Material | Brass, gold-plated |
| Center Contact | Beryllium copper, gold-plated |
| Dielectric | PTFE |
| Mounting | Board edge / end launch / panel mount |
| Compliance | RoHS |
FAQ — Molex 0732512120 SMA Jack
Q: Edge mount vs through-hole — what's the install difference?
A: Edge-mount SMA jacks solder onto the PCB edge (the connector body wraps around the board edge). Through-hole versions use pins extending through holes. The 0732512120 is edge-mount — verify your PCB has the matching edge cutout before ordering.
Q: Is 18GHz overkill for a Wi-Fi antenna?
A: For 2.4GHz/5GHz Wi-Fi or 5G sub-6 work, an 18GHz-rated connector is more than enough. The higher frequency rating means lower insertion loss across the operating band — a quality advantage over budget SMA connectors rated to only 6GHz.
Q: Will it mate with a standard SMA male cable?
A: Yes — standard SMA threads and impedance. Pairs with any standard SMA male plug or SMA-to-SMA cable.
Q: Bulk pricing?
A: Yes — email contact@lys-sz.com for tray-quantity pricing on Molex stock.
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Sourcing Molex 0732512120 SMA connectors in volume? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.
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