SMA Male Crimp Connector for LMR-195, RG-58, and other 0.195 Inch OD Coax


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SMA Male Crimp Connector for LMR-195, RG-58, and other 0.195 Inch OD Coax

Gold Plated Brass Body
Gold Plated Brass Center Pin
PTFE Dielectric


This SMA Male Crimp Connector is one of several thousand RF products available from Max-Gain Systems, Inc.

This connector is made from a Solid Brass body that is precision machined and plated with Gold for superior performance and value. This SMA Male Crimp Connector has a PTFE dielectric and a gold plated brass center pin. The SMA Male interface’s plug and interior threads provide a sub-miniature and tight-locking connection for use at higher frequencies.



We will begin by installing the SMA male connector on a piece of RG-58. This process is the same for all the other types of cable with an outer jacket OD of 0.195. These connectors fit on a wide range of coax types including, but not limited to: RG-58, RG-58A/U, Belden 7807A, Belden 8219, Belden 8259, and Belden 9201 coaxial cable.

Coax Stripping:

First cut your cable to the desired length and then strip the black jacket back approximately 0.42 inches. When the jacket is stripped cut the braid/foil back 0.20 inches from the fresh cut end. Finally, cut back the dielectric 0.1 inches from the fresh end down to the center conductor. The braid needs to be cut back further than the dielectric to insure that none of the braid or foil is touching the center conductor which could cause a short.

Note: Do not nick the braid, dielectric, and center conductor if at all possible. Tinning of the center conductor is not necessary if contact is to be crimped. For solder method, tin the center conductor if the center is stranded. twist the center conductor very tightly prior to tinning.

SMA male Crimp On for RG-58, LMR-195 7805-SMA-58 installation drawings Step 1 - Max-Gain Systems Inc

Install Method Selection:

Slide the outer ferrule onto the coax as shown below. Flare the braid slightly to allow insertion of the connector main body. Important: Do not comb out braid.

Place the center contact on the center conductor of the coax so that it butts against the cable dielectric. The center conductor should be visible through the solder / inspection hole of the contact. Crimp or solder contact in place as follows:

Crimp-on Method Use the 7505-DIE-8X with a hex of 0.10 installed into a 7505-HANDLE Ratcheting crimp handle for the center pin. (DO NOT OVER CRIMP / CRUSH THE CENTER CONDUCTOR)

Solder-On Method Make sure the solder hole is facing up. Touch the soldering iron to the underside of the center pin directly under the solder hole. Touch the solder to the center conductor through the solder hole on the center pin. Allow the heat from the metal to melt the solder so that it wicks into the center pin. Once the solder melts it only takes a tiny amount of solder to make the connection. Do not allow the solder to pool over the solder hole. The outside of the center pin should be free of obstructions for insertion. Do not over heat the center pin which could cause swelling of the dielectric of the coax.

SMA male Crimp On for RG-58, LMR-195 7805-SMA-58 installation drawings Step 2 - Max-Gain Systems Inc

Main Body Install:

Install the cable assembly with the center pin already affixed, into the main body of the connector. The knurled portion of the main body slides under the braid of the coax. Push the cable assembly into the main body until the center pin snaps into place in the dielectric of the connector.

Slide the ferrule (placed on the coax at the beginning of Step 2) over the braid and completely up against the connector body. Using the 0.213 hex of the 7505-DIE-8X installed into the 7505-HANDLE ratcheting crimp handle, crimp the ferrule at the location shown in the picture below (on the ferrule, but right up against the main body of the connector).

SMA male Crimp On for RG-58, LMR-195 7805-SMA-58 installation drawings Step 3 - Max-Gain Systems Inc

Final Testing:

When this is completed, as a final test, you should always check resistance from the center pin to the body with an ohmmeter in a low resistance scale. After verifying that there are no braid – to – center pin shorts on the other end of the coaxial cable, you should see infinite resistance (open).This completes your installation of the SMA male crimp-on cable end connector and the connector is ready for use!

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About Max-Gain Systems, Inc.

Max-Gain Systems, Inc. carries a full line of in-series, between series, right angle, T-shaped, quick connect, handie-talkie (BLACK), pigtails (coaxial jumpers), etc… RF adapters. Our RF adapter lines are constantly expanding. We keep our RF connector and adapter lines in stock. We ship both retail and wholesale quantities. To become a dealer / wholesale user, contact us with your potential usage.

Max-Gain Systems, Inc. is the number one supplier of fiberglass round hollow tube, square tube and round solid rod to the antenna manufacturing industry. We produce millions of feet a year for hundreds of different industries including but not limited to: marine / boating, aeronautical, agriculture, construction, emergency services, etc…. We have the unique ability to sell one piece or even a semi-truck full. Feel free to prototype using our fiberglass tube and rod then contact us for a quote on a production run. At production run quantities we can cut to your desired lengths at no additional charge, and we can also perform several different fabrications (example: drilling holes in precise locations along a tube) to ensure your delivered material is ready for assembly. We have several accessory items designed for our fiberglass including but not limited to: couplers, telescoping clamps, ferrules, etc…

Additional information

Shipping Weight 0.11 oz
Shipping Dimensions 0.72 × 0.28 × 0.28 in
Connection Type


Termination Type


Coax Type

Belden 7807A, Belden 8219, Belden 8259, Belden 9201, LMR-195, LMR-200, RG-58, RG-58A/U, RG-142, RG-400



Mount Method


Attachment Method


Connector Attribute

Standard Polarity

Body Style



50 OHM

Body Material


Dielectric Insulator Material


Pin Material


Material Designation



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