NC4FX-B 4 pole cable connector, female. Black metal housing and gold contacts. TECHNICAL DATA Electrical Number of contacts: 4 Contact resistance: ≤ 3 m Insulation resistance - initial: > 2 G - after damp heat test: > 1 G Dielectric strength: 1500 V dc Rated current: 10 A AWG: 1.5 mmｲ/16 AWG Capacitance between contacts: ≤ 7 pF Mechanical Lifetime: >1000 cycles Insertion / withdrawal force: ≤ 20 N Cable O.D. range: 3.5 mm - 8.0 mm Materials Shell: ZnAl4Cu1, black Cr over Cu plating Insert: PA 6.6 30% GR (glass reinforced) Contacts: CuZn39Pb3 Contact surface: gal 0.2 ｵm Au hard alloy over 2 ｵm Ni Latch lock (female): St3K32 Strain-relief clamp: POM Antikink bushing: PUR Environmental Temperature range: -30ｰ C to + 80ｰ C Flammability: UL 94HB Solderability: complies with IEC 68-2-20 Compatibility / Remarks Compatibility: IEC 61076-2-103 Standard   XLR Cable Connectors / X Series The worldwide accepted standard. Rugged diecast shell, rear insert, robust and compact design (shortest available XLR cable connector). Time saving assembly: only 4 pieces, no set screws. Neutrik unique chuck-type strain relief. UL recognized component.