IDC RA CONNECTOR IDC Disconnectable Insulation displacement connectors for 1.27mm pitch ribbon cables 2.54mm pitch Features Twin U-slot ID section The twin U-slot is the most important IDC element in Beam B JSTs RA connectors. As Slot shown in the figure, wire Beam A conductors are connected Beam supporter between the slots of U-shaped Conductor parallel beams, and the distance between each adjacent Double-leaf contact pair of beams is designed to be one third of the pitch of wire strands. Two-die processing and selective gold plating Two precision dies are used to blank and form the contacts. After the first die blanks the contacts, they are gold plated at crucial points. Then, the contacts are formed by the second die. This eliminates unnecessary gold-plating and overall To keep pace with the rapid developments in costs are minimized. This innovation is another example of electronics, internal and external connection our industry-leading technology. systems are naturally increasing in density. At the same time, labor requirements and overall costs Selective gold-plated posts must be minimized. RA connectors meet all of Header posts are also selectively gold-plated. While square wire these requirements, while providing increased material is used for production of conventional posts in loose reliability. These connectors, whose materials, shapes, dimensions, and surface treatments have pieces, continuous flat strip is used for production of our post in been carefully selected, are based on the latest chain form. This allows selective gold-plating and provides cost technological information that has been reduction. accumulated and improved over years of Cost-efficient experience in crimping connection technology. JSTs unique technology allows it to produce connectors that are extremely reliable and cost-efficient. Interchangeable cables and connectors RA connectors fit commercially available 1.27 mm pitch flat ribbon cables. A variety of ribbon cables are offered according to Short locking lever the purpose. Moreover, the RA series receptacles and header are interchangeable with the similar type of connectors commercially available. Contact JST before procuring cables and other manufacturers mating connectors. * Refer toGeneral Instruction and Notice when using Terminals and Connector at the end of this catalog. Long locking lever * Contact JST for details. * Compliant with RoHS. Standards Recognized E60389 0 Certified LR20812 1 1RA CONNECTOR Receptacle Specifications Characteristics Materials 1.0 A AC, DC Current rating Phosphor bronze Contact Nickel-undercoated, selective gold-plated Voltage rating 300 V AC, DC Copper-undercoated, tin-plated (reflow treatment) (including temperature rise in applying electrical current) Glass-filled PBT, UL94V-0, black Receptacle housing Temperature range -55C to +125C (gold-plated) -55C to +105C (tin-plated) Cover housing Glass-filled PBT, UL94V-0, black Initial value/10 m max. (gold-plated) Strain relief Glass-filled PBT, UL94V-0, black 40 m max. (tin-plated) Contact resistance After environmental tests/ *Contact JST for details. 15 m max. (gold-plated) 50 m max. (tin-plated) Insulation resistance 5,000 M min. Withstanding voltage 500 VAC/5 seconds Applicable wire AWG 28, 1.27 mm pitch ribbon cable Applicable cables Ribbon cables conforming to the following specifications can be used with RA connector receptacles. Contact JST for details. Dimensional tolerance (mm) No.of conductors (n) PW 10 to 14 0.18 0.3 16 to 26 0.28 0.3 0.3 34 to 60 0.38 1.27x(N-1)= P AWG 28 stranded wire 1.270.05 (pitch) Insulator Construction: 7/0.127 mm dia. Material: Tin-plated annealed copper wire Conductor AWG 28 solid wire Construction: 0.32 mm dia. Material: Tin-plated annealed copper wire Conductor Insulator Soft vinyl chloride 1.27xN= W Note: N --- Number of circuits 2 0.9