Amphenol Three Piece BNC Male Crimp Connector

Three Piece Connector Has an Additional Ferrule for Extra Connectivity


What's special about this BNC Connector?

  • The three piece BNC connector is first crimped onto center conductor, and the remaining assembly is crimped onto the cable to provide a solid electrical connection.
  • Three piece connectors are preferred for CCTV installations; however, the Amphenol BNC connector is ideal because of the additional ferrule, which provides quality connection.
  • Nickel, brass and gold plating all work together to give you secure, strong connectivity for long lasting satisfaction.
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These are 75 OHM BNC connectors, which are primarily used for video and DS3 Telco (telephone) central office applications. Many VHF receivers use 75 ohm antenna inputs, so they often use 75 ohm BNC connectors. The only difference between a two piece and a three piece crimp on connector is the central pin. In the two piece connector, the cable center conductor enters into the connector’s center pin, where the spring contact grips it. The three piece has a separate inner pin which in crimped on its own, before the remainder of the connector is crimped. This is a more secure system for better signal flow.

Part # Description Cable Type Price
AMP-031-315-RFX Amphenol Three Piece BNC Crimp Connector 75 OHM RG-174, 188, 316
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AMP-031-70235 Amphenol Three Piece BNC Crimp Connector 75 OHM Belden 8281
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  • BNC connectors are used for RF signal connections, for analog and Serial Digital Interface video signals.
  • Used as an alternative to the RCA connector with composite video on commercial video devices.
  • Also commonly used on 10base2 thin Ethernet networks, both on cable interconnections and network cards where there is coaxial cable.


PART # AMP-031-315-RFX AMP-031-70235
Cable RG-/U 174, 188, 316 Belden 8281
Cavity for Contact 0.068" 0.042"
Cavity for Outer Ferrule 0.178" 0.324"
Die Set for Tool 227-944 227-1221-9 -
CTL Series Tool Number CTL-2 CTL-14
Body Brass and nickel plating Brass and nickel plating
Contact Brass and gold plating Brass and gold plating
Insulator PTFE and natural PTFE and natural
Impedance 75 OHM 75 OHM
Frequency Range DC 0-4 GHz DC 0-4 GHz
Dielectric Withstanding Voltage 1500 VRMS, Min 1500 VRMS, Min
Durability 500 Cycles Min 500 Cycles Min
Temp Range -40° C to +155° C -40° C to +155° C
Hex Crimp Size 0.324" 0.324"
Sq Crimp Size 0.043" 0.043"


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