JM CONNECTOR 2.54mm Jumper connectors pitch Standard type Features ------------------------ * Stackable This connector is stackable in both directions. * Low profile This connector measures 8.5 mm high after mounting. The receptacle is 6.0 mm high. Grooved type * High reliability Each contact makes an electrical connection with its mating header post at two points. This redundancy ensures continuity even under adverse environmental conditions. * Through style The receptacle allows the mating post to pass completely through and measures 6.0 mm in height. It is suited for various headers having posts measuring 6.0 mm or more in height. * Provides convenient test points This is a two-circuit jumper connector suited for changing or switching circuits on printed circuit boards without using DIP switches. It is compact and light, thus can be mounted on printed circuit boards without interfering with the placement of other components. The connector is easy to use, low in cost, and has a wide range of applications in industrial and consumer products. Provides extra test points where circuits can be checked without the disassembly of components. Specifications ------------------- Standard type Grooved type * Current rating: 3 A AC, DC * Voltage rating: 250 V AC, DC * Temperature range: -55C to +125C (including temperature rise in applying electrical current) * Contact resistance: Initial value/ 20 m max. After environmental tests/ 30 m max. * Insulation resistance: 1,000 M min. * Withstanding voltage: 800 VAC/minute * Applicable PC board thickness: 1.2 to 1.6 mm * Number of circuits: RE header 2 to 30 RF header 2 to 60 (even numbers only) * Refer to "General Instruction and Notice when using Terminals and Connectors" at the end of this catalog. * Contact JST for details. * Compliant with RoHS. Standards ---------------------- 0 Recognized E60389 1 Certified LR20812 1 JM CONNECTOR Receptacle --------------------------------------------------------------- Type <Standard type> Model No. <Grooved type> 5.08 4.18 2.54 Finish JM-2BK-61 2.5 JM-2BL-63 Standard JM-2R-64 JM-2W-96 6 6 Grooved *JM-T2W-61B Color Q'ty /box Nickel-undercoated, Mating part; gold-plated 0.1 micron min. Nickel-undercoated, Mating part; gold-plated 0.4 micron min. Nickel-undercoated, Mating part; gold-plated 0.76 micron min. Copper-undercoated, tin-plated (reflow treatment) Nickel-undercoated, Mating part; gold-plated 0.1 micron min. Black Blue Red 5,000 Natural White Material Contact: Phosphor bronze Housing: PBT, UL94V-0 2.54 2.1 2.54 RoHS compliance Note: 1. *Marked product is not approved by UL/CSA . 2. Contact JST for special products. 5.08 Header ------------------------------------------------------------------ RE header RF header (2.66) 6.2 0.64 2.54 1.27 2.54 (1.83) 3 3.4 2.54 2.54 6 1.27 6 2.54 0.64 Gold-plated product Tin-plated product Material Model No. RE-H( )2TD-1130 RF-H( )2TD-1130 RoHS compliance Wafer Post PBT, UL94V-0, black Brass Finish Nickel-undercoated, gold-plated Material Model No. Wafer RE-H( )2TD-1190 PBT, UL94V-0, Finish Post Copper-undercoated, Brass black tin-plated (reflow treatment) RF-H( )2TD-1190 RoHS compliance This product displays (LF)(SN) on a label. Note: 1. A two-digit number (RE header: 02 to 30 or RF header: 02 to 60 even numbers only) representing the number of cicuits should be inserted in (*). 2. Special headers and side-entry type RE and RF headers are also available. For details, refer to pages RE series and RF series. PC board layout (viewed from soldering side) and Assembly layout ------------------- 1 +0.1 0 1.27min. 2.540.05 (2.66) 2.54 <Grooved type> 3.4 8.54 3 3 (2.66) <Standard type> 8.54 <Grooved type> 8.54 <Standard type> 1.27min. 8.54 2.54 0.05 6.2 3.4 +0.1 0 1.46 min. 1 With RF header 1.83min. With RE header 6.2 Note: 1. Tolerances are non-cumulative: 0.05 mm for all centers. Note: 2. Hole dimensions differ according to the type of PC board and piercing method. The dimensions above should serve as a guideline. Contact JST for details. 2