High-Quality SMA-Kfd13 Coaxial Straight Flange Connector for Reliable Connections
| Application: | Microwave, Automobile | Contact Material: | Copper |
| Surface Treatment: | Nickel Plating | Type of Contact: | Crimp Pin |
| Orientation: | Normal | Transport Package: | PP+Carton |
| Trademark: | Donconn | Origin: | China |
| HS Code: | 8536909000 | Production Capacity: | 500000 Pieces/Year |
SMA-KFD13 RF Coaxial Connector, SMA Series (Female, Flange Mount)
The SMA-KFD13 is an SMA series RF coaxial connector designed for microwave and RF signal transmission in aerospace, avionics, communication, and test equipment. It conforms to SMA interface standards (IEC 61169-15 / MIL-PRF-39035 / GJB681). The SMA-KFD13 is a panel-mount flange receptacle with female (socket) contacts. Note: SMA is a coaxial RF connector standard, fundamentally different from multi-pin circular connector standards such as MIL-DTL-38999/GJB599, MIL-DTL-27484, MIL-DTL-27497, MIL-DTL-27508, MIL-DTL-26482, JY27466, 8D, Y50, YLH, ZH8525, and YH3116 series, and is not interchangeable with any of those connector families.
This connector features a female (socket) contact interface (K), flange panel-mount configuration (FD), and configuration code 13. The SMA series provides 50-ohm impedance with threaded coupling, supporting signal frequencies up to 18 GHz (typical). The "K" designator indicates female/socket contacts (Chinese convention: K = 孔/socket), "F" indicates flange mounting, "D" is a flange/panel variant code, and "13" is a configuration code — confirm exact meaning of "D" and "13" with supplier.
Product Features
- SMA series RF coaxial connector — IEC 61169-15 / MIL-PRF-39035 / GJB681 compliant interface
- Female (socket) contacts (K) for mating with male (pin) SMA connectors
- Flange panel-mount configuration (FD) for chassis/bulkhead installation
- 50-ohm impedance, DC to 18 GHz frequency range (typical for SMA)
- Threaded coupling mechanism for secure RF connection
- Gold-plated contacts for low insertion loss and corrosion resistance
- Low VSWR and excellent RF performance for microwave applications
- Configuration code 13 — confirm exact variant meaning with supplier
Technical Specifications - SMA-KFD13
| Parameter | Value |
|---|---|
| Part Number | SMA-KFD13 |
| Standard / Series | SMA series (IEC 61169-15 / MIL-PRF-39035 / GJB681) |
| Connector Type | RF coaxial connector, flange panel-mount receptacle |
| Contact Gender | K - Female (socket) contacts |
| Mounting Style | F - Flange mount (panel/bulkhead) |
| Flange Variant | D - flange/panel variant code (confirm exact meaning with supplier) |
| Configuration Code | 13 (confirm exact variant meaning with supplier) |
| Impedance | 50 ohm |
| Frequency Range | DC to 18 GHz (typical for SMA) |
| Coupling Mechanism | Threaded (internal thread for female receptacle) |
| Contact Plating | Gold plated (confirm exact plating with supplier) |
| Operating Temperature | -65°C to +165°C (typical for SMA, confirm with supplier) |
| Compatible Mating | SMA series male (pin) connector (J type, e.g., SMA-J). NOT compatible with multi-pin circular connectors (D38999/J599, MS27484, MS27497, MS27508, 62GB, JY27466, 8D, Y50, YLH, ZH8525, or YH3116 series). |
Part Number Breakdown
| Segment | Meaning |
|---|---|
| SMA | Connector series designation (SMA series RF coaxial connector) |
| K | Female (socket) contacts — Chinese convention: K = 孔 (socket) |
| F | Flange mount (panel/bulkhead installation) |
| D | Flange/panel variant code (confirm exact meaning with supplier) |
| 13 | Configuration code (confirm exact variant meaning with supplier) |
Related options: SMA-JFD13 with male (pin) contacts; SMA-KFD13 with cable mount for cable assembly; SMA-KYD13 for straight cable plug variant; SMA-KFD13 is the flange panel-mount female receptacle. Mating connector: SMA-J type male connector. Important: SMA series is an RF coaxial connector standard and is NOT interchangeable with multi-pin circular connectors including D38999/J599, MS27484, MS27497, MS27508, 62GB/MIL-DTL-26482, JY27466, 8D, Y50, YLH, ZH8525, or YH3116 series. The "D" variant code and "13" configuration code must be confirmed with supplier.
Compatible Applications
The SMA-KFD13 connector is intended for platforms that require RF signal transmission with panel-mount SMA interfaces. Typical use cases include:
- RF and microwave communication equipment
- Aerospace and avionics antenna systems
- Test and measurement instrumentation
- Radar and electronic warfare systems
- Base station and wireless infrastructure
- Panel/bulkhead RF feed-through connections
Selection Guide
| Requirement | Recommended Choice |
|---|---|
| SMA female flange panel mount, configuration 13 | SMA-KFD13 - this product |
| SMA male (pin) mating connector | SMA-J type male connector (confirm exact part number with supplier) |
| SMA female cable mount | SMA-KYD13 or similar (confirm with supplier) |
| SMA male flange panel mount | SMA-JFD13 |
Installation Notes
- Verify connector type (female/socket), flange mount style, and configuration code 13 before installation. Confirm "D" variant code and "13" configuration meaning with supplier.
- Use proper torque wrench for SMA coupling (typically 5–10 in-lbs / 0.3–0.6 N·m, confirm with supplier).
- Align flange holes with panel mounting holes and secure with appropriate hardware.
- Mate only with SMA series male (pin) connectors — do NOT attempt to mate with multi-pin circular connectors.
- Handle gold-plated contacts with care to avoid contamination or damage to the RF interface.
Why Choose SMA-KFD13
SMA RF Coaxial Performance
Choosing SMA-KFD13 ensures compliance with SMA series RF coaxial interface standards for programs that require reliable microwave signal transmission. The flange panel-mount configuration with female contacts provides a stable chassis/bulkhead RF feed-through. Note: this connector is NOT a multi-pin circular connector and is NOT interchangeable with D38999/J599, MS27484, MS27497, MS27508, 62GB, JY27466, 8D, Y50, YLH, ZH8525, or YH3116 series parts. Confirm exact specifications, "D" variant code meaning, "13" configuration code meaning, and interchangeability with supplier.
Ordering Information
Order by the designation SMA-KFD13. When requesting a quote, please confirm mating connector part number (SMA-J male), flange dimensions, contact plating, "D" variant code meaning, "13" configuration code meaning, and required quantity.
