Pomona ® Model 4958 Twinaxial, BNC, Receptacle, Bulkhead MATERIALS: Body: Brass, Tarnish Resistant Plating Alloy 360, ½ Hard or Phosphor Bronze Male Contact: Gold Plated Brass Female Contact: Gold Plated Beryllium Copper Dielectric: PTFE Finish: Body and Fittings: Tarnish resistant Male and Female Contact – Gold plated Marking: “POMONA 4958” RATINGS: Operating Temperature: -65°C (-85°F) to +165°C (+329°F) Operating Voltage: 500 VRMS Max. Nominal Impedance: 50 Ohms ORDERING INFORMATION: Model 4958 All dimensions are in inches. Tolerances (except noted): .xx = ±.02” (,51 mm), .xxx = ± .005” (,127 mm). All specifications are to the latest revisions. Specifications are subject to change without notice. Registered trademarks are the property of their respective companies. Made in USA 6/9/99 SY/EH/LS Sales: 800-490-2361 Fax: 888-403-3360 Technical Assistance: 800-241-2060 C:\Laura Goldberg\FlukeDataSheet\d4958_1_01.doc PomonaACCESS 90287 (800) 444-6785 or (425) 446-6010 More drawings available at www.pomonaelectronics.com Page 1 of 1