Information
This male SMA connector is a cable connector which is designed to terminate with thicker coaxial cables. The biggest coaxial cable this SMA connector can terminate is LMR 400 which has 10.3mm diameter.
All kinds of RF coaxial cable for SMA male straight crimp type are RG174, RG316, RG58, RG223, LMR 400, LMR240, LMR195, LMR200, RG188, LMR100, RG142, RG400, RG141, RG303, RG55, B7806A, B7807A, RG8X, Belden 8214, Belden 9913, H1000.
The SMA adaptor cable/ SMA connector cable/ SMA Cable assembly are used in various RF markets, like GPS antenna, GSM antenna, WLAN and so on. Wellshow not only can provide you SMA gold plug, but also nickel type. If you want to cost down, SMA connector nickel plug will be your best option.
SMA connector is an acronym for SubMiniature version A and was developed in the 1960’s. Built in accordance with MIL-C-39012 and CECC 22110/111, SMA connectors are designed per SMA interface dimensions.
If you need SMA connector for mini coaxial cable like 0.81, 1.13, 1.32, 1.37, 1.48 or RG178, please link here.
Part Numbers
| P/N & Drawing | Description | Cable Group | Ohm |
|---|---|---|---|
| C01AA31174004A C01AA31316D04A C01AA31058A04A C01AA31400004A C01AA31223004A C01AA31L20004A C01AA31L24004A C01CA31L40004A | SMA straight crimp plug SMA straight crimp plug SMA straight crimp plug SMA straight crimp plug SMA straight crimp plug SMA straight crimp plug SMA straight crimp plug SMA straight crimp plug (Nickel) | RG174, RG316, RG188, LMR100 RD316 (double shielding) RG58, RG141, RG303, LMR195, B7806A RG142, RG400, RG55 RG223 LMR200, B7807A LMR240, RG8/X, Belden 8214 LMR400, H1000, B9913, RG8/U | 50 50 50 50 50 50 50 50 |
Cable Assembly
Cable assembly Instructions Crimp type
Step1. All parts of SMA RF connector are shown as the top line.
Step2. Strip the RF coaxial cable into center conductor, insulator, shielding three parts per recommended stripping dimension shown in SMA RF connector spec.
Step3. Slide the heat shrinking tube, then ferrule onto the cable jacket.
Step4. Insert the center conductor of the cable into the contact pin of SMA plug and then solder through the side hole.
Step5. Spread out the shielding and put the contact pin into main body until it stops, and then cover shielding onto the knurled barrel.
Step6. Slide the ferrule over the shielding, and proceed the first open-short test to make sure signal can transmit well.
Step7. Crimp the ferrule.
Step8. Heat shrink the shirking tube.
Step9. 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.
