Overview
The SMP connector is a high-frequency, subminiature coaxial connector designed for applications requiring ultra-compact size and reliable performance. It features a push-on coupling mechanism that enables quick, easy connections and disconnections while maintaining consistent electrical performance. SMP connectors typically have a 50 ohm impedance and support frequencies up to 40 GHz or higher, making them ideal for RF, microwave,Radar systems, avionics, and navigation equipment and high-speed digital systems. Their small footprint allows dense packaging in test equipment, telecommunications, and aerospace applications. Available in both male and female configurations, SMP connectors deliver durable, low-reflection connections for demanding, space-constrained designs.
Features
Engineered to handle both radial and axial misalignment.
Available in push-on and snap-on mating styles for fast, easy installation.
Offered in board-to-board and cable-to-board configurations to suit diverse system layouts.
Applications
Antennas
Military
Telecommunications
Instrumentation
Radar systems, avionics, and navigation equipment
Electronic warfare, military radios, and secure communication links
Towers, repeaters, routers, and access points for reliable RF signal transfer
Specification
Cable Type | 141 RG402 |
| Body Plating | Gold |
| Body Material | Brass |
| 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 | Straight |
Temperature Range | -65 to 165 ° C |
Mating Cycles | 500 Min |
Interface Specification | IEC 61169-44 |
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 is impedance, and why is 50 Ω or 75 Ω important?
Impedance matching prevents signal reflection and power loss. 50 Ω: Standard for RF communication, test equipment, aerospace, defense. 75 Ω: Standard for broadcast, video, and cable TV applications.
What materials are RF connectors made of?
Body: Brass, stainless steel, or beryllium copper (with nickel, gold, or silver plating). Insulator: PTFE, PE, or advanced low-loss dielectrics. Contacts: Gold-plated brass or beryllium copper for low resistance and durability.
Are RF connectors weatherproof?
Some RF connectors are designed with gaskets and sealing (e.g., N-type, 4.3-10) for outdoor telecom, antennas, and harsh environments. Indoor lab connectors (e.g., SMA, BNC) are usually not weatherproof unless specified.
What is the difference between male and female RF connectors?
Male: Has a center pin and usually an outer thread or bayonet. Female: Has a receptacle (socket) for the center pin and matching thread. Some connectors (like SMA) can be confusing because “reverse polarity” (RP-SMA) swaps pin/socket configuration.
