BT RoHS Compliant Miniature Toggle Switch ■ ■Features 1. Terminal pin pitch: 2.54 mm. 2. Gold-plated contacts 3. Wiping contact mechanism for long-term reliability 4. Independent detent mechanism ensures light operational feel. 5. Epoxy-sealed terminal pins 6. Miniature size (Single-pole: 7.6mm, Doublepole: 12.7mm) for high density mounting. Rating Max. 50mA 20VAC・DC （1.5mA 200μVAC） Initial contact resistance 50mΩ max. Dielectric strength 500VAC 1 minute Insulation resistance 10,000MΩ min. Electrical life 50,000 cycles Operating temperature range Storage temperature range −20℃〜＋85℃ （250VDC） −40℃〜＋85℃ ■Part Numbering B Series code T Actuator shape 2 Number of poles Code Type Fig. Number of poles T Toggle type 1 1 pole 2 2 poles Code 1 pole 2 poles N − Terminal style Switching function Switching function D N ON ー ON E P ONーOFF ーON 2 Fig. Terminal style 2 PC Straight M 4 Actuator shape Code Actuator shape M Standard Bracket style Fig. Bracket 4 With bracket F R ON ー （ON） G S （ON）ーOFFー（ON） H T ONーOFFー（ON） （ON） ：Momentary. BT SPDT Rating mark PC Straight Switching function Viewed from part No. marking side Part No. Epoxy seal ☆BT1D-2M4-Z ★BT1E-2M4-Z ★BT1F-2M4-Z ★BT1G-2M4-Z ★BT1H-2M4-Z ON ON （ON） （ON） （ON） − OFF − OFF OFF ON ON ON （ON） ON Connecting terminals 2−1 − 2−3 Terminal numbers are not shown on the switch. Rating mark DPDT PC Straight Switching function Viewed from part No. marking side Part No. ★BT1N-2M4-Z ★BT1P-2M4-Z ▲BT1R-2M4-Z ▲BT1S-2M4-Z ▲BT1T-2M4-Z Epoxy seal ON ON （ON） （ON） （ON） 2−1 5−4 Connecting terminals Terminal numbers are not shown on the switch. − OFF − OFF OFF − ON ON ON （ON） ON 2−3 5−6 ■ Optional Accessories ■PC Hole Layouts 《Sold separately》 Color Cap （Round type） 1−pole Dimensions Color Part. No. White Red Black Gray 140000470030 140000470098 140000470031 140000470037 2−poles Vinyl chloride resin Color Cap （Square type） Dimensions Color Part. No. White Red Black Gray 140000470038 140000470100 140000470039 140000470077 Vinyl chloride resin ★：Made to order products. ☆：Semi-standard products. ▲：Inquiry products. （ON） ：Momentary. ：Optional Accessories. BT ■ ■Flux Cleaning ⑴Manual Soldering ⑴Solvent : Fluorine or Alcohol type. Device ： Soldering iron 380℃, Max.; 3 seconds, Max. ⑵Auto Soldering Device ： Jet wave type or dip type 275℃, Max.; 3 seconds, Max. ●Pre-heating should be done at temperatures below 100℃ and within 30 sec. ⑶When soldering two or more terminals to the common land, use the solder resist to solder them independently. ■Mounting of Switch ●Use PC boards with hole diameter of 0.8mm. ●Do not bend the terminal pins before mounting the switch on the PC board. ●After mounting the switch, do not place the device in such a way that the device weight will be applied on to the actuator of the switch. ●Do not apply load exceeding 29.4N to the actuator. ⑵The BT series are not washable. To wash the PC board, clean the soldering surface of PC board with a brush so that the switch is not exposed to the cleaning solution. ⑶Cleaning after soldering should be done after the terminal temperature falls to 90℃ or below, or after leaving the switch