SMA-KFD-2.5-02 Stright Solder Flange Mount 2 Holes Jack Female RF Connector thumbnail 1
SMA-KFD-2.5-02 Stright Solder Flange Mount 2 Holes Jack Female RF Connector thumbnail 2
SMA-KFD-2.5-02 Stright Solder Flange Mount 2 Holes Jack Female RF Connector

SMA-KFD-2.5-02 Stright Solder Flange Mount 2 Holes Jack Female RF Connector

RF Connectors / SMA Connectors
The SMA (SubMiniature version A) connector is a widely - used semi - precision, ultra - small RF and microwave connector. With a threaded coupling design, it reduces signal reflections and attenuation at high frequencies. Its characteristic impedance is usually 50Ω, originally for 0Hz - 12GHz, now up to 26.5GHz. Small in size, it suits compact electronics. It has low insertion loss and good impedance matching, with an insulation resistance ≥5000MΩ. Applied in telecommunications, testing, aerospace, and industrial automation, SMA connectors ensure reliable high - frequency signal transmission.
  • Avionic Equipment
  • Handheld Devices
  • Missile Systems
  • Weapon Control Systems
RoHS REACH SVHC

General Specifications

Part Number 21B004P2200
Termination Type Solder
Model Jack (Socket)
Category RF Connectors/Coaxial Connectors
Series SMA
Standard RoHS
Installation Style Flange Mount
Direction Straight
Part Number 21B004P2200
Termination Type Solder
Model Jack (Socket)
Category RF Connectors/Coaxial Connectors
Series SMA
Standard RoHS
Installation Style Flange Mount
Direction Straight

Electrical Specifications

Impedance 50 Ohms
Frequency Range DC ~18GHz
Max Frequency 18 GHz
Dielectric Withstanding Voltage 500V rms
Working Voltage 500V
Insulation Resistance ≥ 1000 MOhms
VSWR ≤1.25(DC~3GHz)
Impedance 50 Ohms
Frequency Range DC ~18GHz
Max Frequency 18 GHz
Dielectric Withstanding Voltage 500V rms
Working Voltage 500V
Insulation Resistance ≥ 1000 MOhms
VSWR ≤1.25(DC~3GHz)

Physical Specifications

Main Material Brass
Contact Plating Gold
Temperature Range -45°C ~ + 85°C
Salt Spray 72h
Durability 500 Cycles
Main Material Brass
Contact Plating Gold
Temperature Range -45°C ~ + 85°C
Salt Spray 72h
Durability 500 Cycles

Product Insights

The SMA connector, short for SubMiniature version A connector, is a widely used semi-precision ultra-small radio frequency (RF) and microwave connector. It features a compact threaded coupling design, ensuring uniform contact with the outer conductor through threaded connections. This design effectively reduces reflections and attenuation at high frequencies. The characteristic impedance of SMA connectors is typically 50Ω. Originally designed for a frequency range from DC (0Hz) to 12GHz, technical advancements have led to variants capable of operating at 18GHz and 26.5GHz. Thanks to their ultra-small size, they are widely applicable in relatively small electronic devices. Available in various types such as male/female, straight, right-angle, and bulkhead fittings, they can meet diverse requirements.
In terms of performance, SMA connectors are known for their wide bandwidth, excellent performance, high reliability, and long service life. With low insertion loss and good impedance matching, they stably and reliably transmit high-frequency signals. Common electrical parameters include an insulation resistance of ≥5000MΩ, contact resistance of ≤3mΩ between inner conductors, and ≤2mΩ between outer conductors. SMA connectors have extremely broad applications. In telecommunications, networks, and wireless communication fields, they are commonly used to connect RF devices such as antennas, transceivers, and filters for signal transmission and reception, appearing in equipment like base station antennas, mobile phones, and Wi-Fi routers. In testing and measurement instruments such as oscilloscopes and spectrum analyzers, they provide precise and stable signal input/output interfaces to ensure accurate data acquisition. Additionally, they are widely used in aerospace and defense (e.g., military radar, satellite communication systems) and industrial automation (e.g., industrial robots, automated control systems) due to their superior electrical characteristics and reliability.
Xinsheng Electronics is a trusted manufacturer of SMA RF connectors. There are several reasons to choose our products. First, Xinsheng Electronics is a China-based Manufacturing Company. We offer reliable and active services to every country in the world. We provide cost-effective solutions for RF connectors. Second, Xinsheng Electronics RF connectors are highly reliable. International organizations like ISO, RoHS, and more have already approved the product's robust construction. We also offer customizations, including rapid prototyping and manufacturing. Third, Xinsheng Electronics RF connectors work with various SSMC fittings and SMA adaptors. We follow international standards, so our products can easily fit into most radio frequency appliances. Fourth, Xinsheng Electronics offers quick and reliable customer service and after-sales customer support. For more information, feel free to contact us.