mitsumi switches 1. ultra-small tactile switch with nub and surface area reduced by 60% in comparison with previous model. 2. coplanarity of 0.1mm max. guaranteed. 3. stainless steel metal dome realizes superior feeling. 4. suitable for smt re ow soldering. features ultra-small type tactile switches som series applications model name code for any portable devices, mobile phones, dscs, portable music players, etc. s o m - 1 5 2 h n t packaging t(taping) positioning boss n(without boss) h(standard) operating force 2(1.6n), 8(3.3n) nub 3(without nub), 5(with nub) 1(without earth terminals) ultra small tactile switch
mitsumi specifications type ultra-small type tactile switches dimensions electrical characteristics rating dc15v, 20ma (resistance load) contact resistance 500m or less insulation resistance 50m or more withstand voltage 1 minute at 100v ac model name code r number dimensions/height features operating force life pcs/reel SOM-152HNT r66 7132 3.0x2.6 h=0.55 with nub 1.6n 100,000 10,000 som-132hnt r66 7133 3.0x2.6 h=0.35 without nub 1.6n 100,000 10,000 som-158hnt r66 7134 3.0x2.6 h=0.60 with nub, double spring 3.3n 100,000 10,000 0.55 3 3.3 ( 0.8) 2.6 0.35 0.3 1.3 2.3 ?.15 +0.05 a b c d 0.6 3 3.3 ( 0.8) 2.6 0.3 1.3 2.3 ?.15 +0.05 a b c d 3 3.3 2.6 0.35 0.3 1.3 2.3 ?.15 +0.05 a b c d 2.4 2 2.6 3.8 2.5 1.1 circuit diagram reference land dimensions (tolerance ?.05) pattern prohibition area a b c d a b c d there is no connection between a and b, nor between c and d in the switch. connect the board pattern to lands b and c and not to lands a and d. unit:mm unit:mm unit:mm SOM-152HNT som-158hnt som-132hnt
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