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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- 4G Cat.1 Internal FPC Antenna SMA
- 2.4GHz WiFi Antenna 2dBi SMA-to-IPEX
Sourcing Molex 0732512120 SMA connectors in volume? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.
Shipping & Customs
🇺🇸🇪🇺 USA & European Union (DDP):
Orders are delivered DDP (Delivered Duty Paid). All customs duties, import taxes, and fees are included — no additional charges on delivery.
🌍 Rest of world:
Orders ship from China. Depending on your country, local customs authorities may apply import duties or taxes. Any such fees are set by your local authorities and are not included in the product price.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
