300 Series Product Description 50 Ohm BNC Cable Plugs Winchester’s Bomar brand 300 Series 50 Ohm BNC Cable Plug Connectors can be used in a wide range of applications including Broadcast, Telecommunications, Test and Measurement, Security, and Medical. The 300 Series 50 Ohm BNC Cable Plug Connectors are quick-connect/ quick-disconnect connectors that are easy to mate and un-mate with only a quarter turn of the coupling nut. Designed to accommodate a large variety of RG cables and industry standard cables, Winchester’s Bomar brand 300 Series 50 Ohm BNC Cable Plug Connectors feature a crimp/crimp termination. A full line of printed circuit board receptacles, bulkhead receptacles, resistor terminations, and other accessories are also available. • Bayonet coupling system ensures positive locking and allows quick and easy mating and un-mating of connectors. • BNC cable plugs feature a captivated center contact. The retention barb prevents the contact from backing out the rear of the connector while a “nail head” feature at the crimp end prevents the contact from being over inserted into the connector. • Coupling Nuts are stamped with Bomar name and part number for easy identification in the field. CONNECTING INNOVATION TO APPLICATION® Specifications Electrical Impedance: Frequency Range: Working Voltage: Dielectric Withstanding Voltage: VSWR: Contact Resistance: Insulation Resistance: Insertion Loss: Environmental Temperature Range: Material 50 Ohms 0 – 4 GHz 500 VRMS at Sea Level 1500 VRMS at Sea Level Straight: 1.5 Max Center Contact: ≤ 3 Milliohms 5000 Megohms Min 0.2dB Max - 40˚ C to +165˚ C Body and Outer Contacts: Male Contact: Insulator: Crimp Ferrule: Mechanical Coupling Nut Retention: Center Contact Retention: Engagement Force: Disengagement Force: Durability (Mating): Brass, Nickel Plated Brass, Gold Plated PTFE Copper or Brass, Nickel Plated 101 lbs. ≥ 6 lbs. ≤ 5 lbs. ≥ 1.5 lbs. 500 Cycles Min. BNC Installation / Removal Tools KTW-21 is available in two popular lengths – a standard 12-inch tool (KTW-21-2) and a 24-inch extended length tool (KTW-21-1). Part Numbers Bomar Part Number Straight Cable Plugs Crimp Tool with Die Hex Size Packaging 310A205MV RG174, RG316, LMR100 BDHD200 .068 / .213 Single 310A205M RD316 BDHD200 .068 / .213 Single 310A205F RG58, RG141, RG142, LMR195 Stranded BDHD200 .068 / .213 Single 310A205FS RG 58, LMR 195 Solid Center Conductor BDHD200 .068 / .213 Single 310A205A RG6, 21 AWG Center Conductor BDHD200 Solder / .288 Single 310A205A18 RG6 CATV 18 AWG Center conductor BDHD200 .068 / .288 Single Winchester Electronics 199 Park Road Extension, Suite 104 Middlebury, Connecticut 06762 203.741.5400 Phone 203.741.5500 Fax www.winchesterelectronics.com January 2014