Overview
The SMPM connector is a high-frequency, ultra-compact coaxial connector designed for applications where space is limited. It features a push-on mating mechanism that allows quick, reliable connections with minimal effort while maintaining excellent electrical performance. Typically rated at 50 ohm impedance, SMPM connectors support frequencies up to 65 GHz, making them ideal for high-speed RF, microwave, and millimeter-wave applications. Their miniature size enables dense system layouts in test equipment, aerospace, telecommunications,railway communications and signaling systems,MRI, CT, and ultrasound imaging devices and military systems. Available in both male and female configurations, SMPM connectors deliver low-reflection, durable, and repeatable connections for demanding, space-constrained designs.
Features
Ultra-compact, subminiature coaxial design
Push-on mating mechanism for quick, easy connections
50 ohm impedance for consistent RF performance
Broadband frequency support up to 65 GHz
Handles both radial and axial misalignment
Low reflection and minimal signal loss Available in male and female configurations
Suitable for board-to-board and cable-to-board applications
Ideal for high-density, space-constrained layouts in test, aerospace, telecom, and military systems
Applications
Antennas
Military
Telecommunications
Instrumentation
railway communications and signaling systems
MRI, CT, and ultrasound imaging devices
in-vehicle infotainment and connectivity systems
Specification
Cable Type | RG405 |
| Body Plating | Gold |
| Body Material | Beryllium Copper |
| Contact Plating | Gold |
| Contact Material | Beryllium Copper |
| Insulator Material | PTFE |
| Cable Termination | Solder |
| Coupling Mechanism | Thread |
HS Code | 8636909000 |
Frequency (Max GHz) | 40 |
Gender | Female |
Impedance (Ohm) | 50 |
Size Category | Miniature |
Orientation | Right angle |
Temperature Range | -65 to 165 ° C |
Mating Cycles | 500 Min |
Interface Specification | IEC 61169-60 |
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
What’s the lifespan of an RF connector?
Connector durability is rated in mating cycles: General-purpose connectors (BNC, SMA): 500 cycles. Precision connectors (2.92 mm, 2.4 mm): 500 cycles or less. Rugged telecom connectors (N, 7/16 DIN): 500 cycles.
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.
