MR(36°Step) Miniature Rotary Switches RoHS Compliant ■ Specications ■Features 1. Diallyl phthalate resin (UL94V-O) which has excellent resistance to arc and heat, and superb insulation quality is employed. 2. The terminals are molded in to ensure the permanent seal structure that completely prevents flux entry through the terminals. 3. Adoption of the wiping mechanism for the contacting area to ensure contacting stability and reliability. 4. The variable stopper is provided to allow free selection of the desired number of positions (excluding MR4-2 type). Contact plating Rating Series code 1 2 3 4 1pole 3poles 4poles 10 10position 5 5position 3 3position 2 2position Part No. Hex Nut 5mA 6VDC Dielectric strength 1,000VAC 1minute Insulation resistance 100MΩ min. Electrical life 10,000 cycles Operating force 9.8N・cm max. Stopper strength 19.6N・cm Operating temperature range Storage temperature range −20〜＋85℃ （500VDC） −40〜＋85℃ G − Z 10 Contact plating None Silver plated G Gold plated ■ Standard Accessories Part name 10mA 5VAC/DC ■ Terminal Styles Number of poles Number of position 2poles Min. Gold plated 500mA 125VAC Initial contact resistance 10mΩ max.（1A 2〜4VDC） 20mΩ max.（1.5mA 200μ VAC） ■Part Numbering MR 1 − Silver plated Max. 《Supplied with switch》 Lockwasher Locking Ring stopper ■Panel Cut-Out Dimensions Panel thickness : 2 mm max. 140008010241 140008030051 140008020066 140000600357 Dimensions Plating Nickel plated Zinc plated Zinc plated With Locking Ring ●A wide variety of optional accessories are available. Specify the part number from Optional Accessories Table on page 567. ●For Soldering Specications and Flux Cleaning, see page 572. Without Locking Ring MR（36°step） MR1−10−Z 1−pole 10−position Terminal numbers are shown on the switch. Part No. Number of steps 9 ☆MR1−10−Z ★MR1−10G−Z Step angle Repetition of from 1 to 10 36° From 2 to 9-position can be selected by variable stopper. 1/4″-40 THD D-cut Circuit diagram ※Two Common terminals (1C) are internally short-circuited. Select either one depending on wiring arrangements. MR2−5−Z 2−pole 5−position Terminal numbers are shown on the switch. Part No. Number of steps 4 ☆MR2−5−Z ★MR2−5G−Z Step angle Repetition of from 1 to 5 36° From 2 to 4-position can be selected by variable stopper. 1/4″-40 THD D-cut Circuit diagram MR3−3−Z 3−pole 3−position Terminal numbers are shown on the switch. Part No. Number of steps 2 ☆MR3−3−Z ★MR3−3G−Z Step angle Repetition of from 1 to 3 36° 2-position can be selected by variable stopper. 1/4″-40 THD D-cut Circuit diagram ●The circuit diagrams show the switches as viewed from the terminal side with the shaft fully turned in the counter-clockwise direction. ★：Made to order products. ☆：Semi-standard products. ★（黒星）は、受注生産品です。 ★：Made to order products. ☆（白星）は、準標準品です。 ☆：Semi-standard products. MR（36°step） MR4−2−Z 4−pole 2−position Part No. Terminal numbers are shown on the switch. Number of steps Step angle 1 ★MR4−2−Z Repetition of from 1 to 2 ★MR4−2G−Z 36° No variable stopper is used. 1/4″-40 THD D-cut Circuit diagram ●The circuit diagrams show the switches as viewed from the terminal side with the shaft fully turned in the counter-clockwise direction. ■How to Use Variable Stopper [Example] Select Hole No. 5 to set 5 positions with MR1-10-Z. Select Hole No. 3 to set 3 positions with MR2-5-Z. Select Hole No. 2 to set 2 positions with MR3-3-Z. 1. The required number of positions can be obtained by fully turning the shaft in the counter-clockwise direction and inserting the stopper hook into the select hole of the desired contact number. 2. Do not use the variable stopper when all contacts are used. ■Optional Accessories（MR、MRE series） 《Sold separately》 Knob Part Name FB FN Dimensions Part No. Color 140000050598 140000051012 140000050956 140000050601 Body Silver Black Silver Black Indicator Line Black White Black White Body Material Aluminium Aluminium ●For the hexagon wrench for FB/FN types, choose the M4 wrench (2mm) available on the market. ★：Made to order products. ：Optional Accessories.