Information
This SMA connector can work up to 18 GHz by soldering with low loss semi rigid or semi flex cable like RG405 (.085”) or RG402 (.141”). Such kind of high frequency but low loss SMA cable is the first choice to work as RF testing coax cable assembly for testing instrument.
SMA connector is 50 ohm impendence, and SMA connectors are widely used in RF various industries. If you only want commercial grade SMA cable connectors, please link the RF SMA connector main webpage to get more choices.
If you want RP SMA (Reverse Polarity) plug for semi rigid or semi flex cable, please link here.
If you need straight SMA male connector for semi rigid or semi flex cable, please link here.
Part Numbers
| P/N & Drawing | Description | Cable Group | Ohm |
|---|---|---|---|
| C01BA31085008B C01BA31141008B | SMA RF connector right angle solder plug SMA RF connector right angle solder plug | .085”, RG405, Flexiform 405 .141”, RG402, Flexiform 402 | 50 50 |
Cable Assembly
Cable assembly Instructions Solder type
Step1. All parts of SMA RF connector are shown as the top line.
Step2. Strip the RF coaxial cable into center conductor and insulator per recommended stripping dimension shown in SMA RF connector spec.
Step3. Insert the cable inner conductor into the contact pin of SMA connector, and solder through the pin’s side hole to fix it.
Step4. Push the contact pin into the main body per SMA interface dimension.
Step5. Encircle the joint of barrel and cable by soldering.
Step6. Place the insulator then cap on, and press cap into main body.
Step7. Heat shrink the shrinking tube.
Step8. Do the open-short test of every cable assembly before QC examination.
Specification
SMA Connector Technical Characteristics
| Electrical | |
| Impedance | 50 ohm |
| Frequency range | 0 ~ 18 GHz |
| VSWR | Straight type ≤ 1.3 max. |
| R/A type ≤ 1.5 max. | |
| Dielectric withstanding voltage | 1000 V rms min. for RG142, RG405 750 V rms min. for RG316, RG402 500 V rms min. for RG178 |
| Working voltage | 500 V rms max. for RG142, RG405 375 V rms max. for RG316, RG402 170 V rms max. for RG178 |
| Center contact resistance | ≤ 6.0 mΩ (Milliohms max.) |
| Outer contact resistance | ≤ 2.0 mΩ (Milliohms max.) |
| Insulation resistance | ≥ 5×103 MΩ (Megohms min.) |
| Mechanical | |
| Coupling | 1/4-36 thread |
| Contact Retention | 15 in-lbs. min. |
| Mating torque | 2 in-lbs. min. |
| Mating Durability | 500 cycles min. (For Beryllium copper contact only) |
| Environmental | |
| Temperature Range | −65ºC ~ +155 ºC |
| Vibration | MIL-STD-202 Meth. 204 |
| Corrosion resistance | MIL-STD-202 Meth. 101 |
| Materials | |
| Body, coupling nut | Brass, Non-magnetic stainless steel |
| Insulator | Teflon |
| Center contact | Brass for male, Beryllium copper for female |
| Crimping sleeve | Annealed Brass |
| Body plating | Nickel (Ni), Gold (Au), Passivated |
| Center contact plating | Gold (Au) |
Note: These characteristics are typical and may not apply to all connectors.
