FEATURES SPST momentary action. MJTP SERIES - 12 MM Excellent tactile feed-back (Snap dome). Long operating life for high reliability. SQUARE TACT SWITCHES Molded-in terminals minimize wicking of flux or solder. Flush, round, keyed or square actuator. Thru-hole mounting. MATERIALS Case: PBT, color black. Actuator: P.O.M. thermoplastic, color black. Cover: Stainless steel. Terminals: Silver plated brass. Shorting Contact: Silver plated phosphor bronze. MJTP1212 MJTP1212A MJTP1212B MJTP1212C GENERAL SPECIFICATIONS ELECTRICALS Contact rating: 50 mA 12 VDC Insulation resistance: 100 megohms min. (500 VDC) Dielectric withstanding voltage: 250 VAC for 1 minute Contact resistance: 100 milliohms max. Electrical Life: 100,000 cycles min. (1,000,000 cycles available - consult factory) Contact bounce: less than 5 msec. M MECHANICALS, THERMALS, ENVIRONMENTALS Plunger travel: .012 .006 (0.30 0.15 mm) Actuation force: 160 grams 50 grams (.35 lbs.) Operating temperature range: -20C to +70C Storage temperature range: -30C to +80C for 96 hours Shock resistance: 30G (peak value) for 11 millisec. per Method 213B, MIL-STD-202F (3 times each on 6 sides). Vibration resistance: 10-55-10 Hz. for 1 minute in X, Y and Z planes per Method 201A, MIL-STD-202F (2 hours in each direction). SOLDERING Wave soldering: 260C max. for 5 seconds max.. Hand soldering: 30 watt iron max. controlled at 320C for approx. 2 seconds Solvent washing: Non-washable. US MJTP1212 EU PHAP3320 US MJTP1212A EU PHAP3320A Flush actuator Round actuator M1 APEM, 63 NECK ROAD, HAVERHILL, MA USA 01835-0788 TOLL FREE: (877) 246-7890 FAX: (978) 372-3534 E-mail: info apem.com SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.US MJTP1212B EU PHAP3320B US MJTP1212C EU PHAP3321 Round keyed actuator Square actuator Caps available - see below SCHEMATIC PRINTED CIRCUIT BOARD LAYOUT Layout Tolerances Linear: .004 ( 0,1mm) Holes: .002 ( 0,05mm) CAPS (for MJTP1212C only) US MJ122 EU U5550 US MJ121 EU U5540 Round cap Square cap M No. Color 1 blue Note - add digit from table to 2 black cap part numbers above for 3 green color. 5 yellow Example - MJ1212 indicates 6 red square black cap. 7 ivory M2 APEM, 63 NECK ROAD, HAVERHILL, MA USA 01835-0788 TOLL FREE: (877) 246-7890 FAX: (978) 372-3534 E-mail: info apem.com SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.