Overview
The SMB interface features a snap-on coupling mechanism and is available in 50 ohm configurations. It meets the requirements of MIL-C-39012 and complies with MIL-STD-348 standards. SMB connectors provide broadband performance with low reflection from DC to 4 GHz, with extended capability up to 10 GHz for application MRI, CT, and ultrasound imaging devices,railway communications and signaling systems . They are offered in various materials, including die-cast options in non-critical areas, delivering a reliable yet cost-effective solution.
Features
Available with various plating options, including nickel, gold, and tin-lead.
Snap-on mating enables quick connection and disconnection, reducing installation time.
SMB PCB slide-on plugs and jacks allow easy board-to-board mounting with minimal insertion force.
Applications
Base Stations
Instrumentation
Radio Boards
Broadband
railway communications and signaling systems
MRI, CT, and ultrasound imaging devices
in-vehicle infotainment and connectivity systems
Specification
Cable Type | RG179 |
| Body Plating | Gold |
| Body Material | Brass |
| Contact Plating | Gold |
| Contact Material | Phosphor bronze |
| Insulator Material | PTFE |
| Contact Termination | Crimp |
| Coupling Mechanism | Push-on |
HS Code | 8636909000 |
Frequency (Max GHz) | 3 |
Gender | Male |
Impedance (Ohms) | 75 |
Size Category | Miniature |
Orientation | Straight |
Temperature Range | -65 to 165 ° C |
Mating Cycles | 500 Min |
Interface Specification | MIL-STD-348 IEC 60169-10 |
FAQ
Sample Delivery Time
Regular models require 15 days, while some complex connectors require 25 days.
Sample Fee
Most RF connectors are CNC-machined parts and do not require mold-making.
However, each part needs to be fine-tuned on the CNC machine. Typically, a single sample costs $200.
This fee will be refunded after a 5K bulk order.
Guarantee
Brass RF connectors come with a one-year warranty.
Stainless steel connectors come with a three-year warranty.
The lifespan also depends on the contact material beryllium contacts offer better durability.
ROHS & REACH Compliance
Our products fully comply with ROHS & REACH regulations.
Does LENORF Offer Military-Grade Products?
Yes. We are honored to provide military-grade products with exceptionally stable quality.
MOQ (Minimum Order Quantity)
Regular connectors: 500 PCS
Adapters: 100 PCS
Military connectors: 100 PCS
Materials
Common materials include:
Body: Brass, stainless steel
Insulator: PTFE, PEEK
Contacts: Brass, phosphor bronze, beryllium copper
Other: Aluminum, titanium alloy
Can RF connectors be reused?
Yes, but performance degrades with wear. Precision connectors (used in test equipment) should be handled carefully—damage to threads or pins increases VSWR and insertion loss.
What’s the difference between threaded, bayonet, and push-on RF connectors?
Threaded (SMA, N, TNC): Secure, vibration-resistant. Bayonet (BNC): Quick connect/disconnect. Push-on (MCX, SMP): Ultra-fast, compact, used in high-density modules.
Are RF connectors interchangeable between brands?
Yes, if they follow the same standard (e.g., SMA-to-SMA). However, tolerances, plating, and dielectric quality vary — mixing low-quality and precision connectors can damage equipment.
How do environmental conditions affect RF connectors?
Temperature extremes can cause expansion/shrinkage and change performance. Humidity and salt spray may cause corrosion (use stainless steel or weatherproof designs). Vibration may loosen bayonet types — use threaded connectors in harsh environments.
