mrk ~ mrkc key switches 2. high contact reliability gold-plated contact with se lf-cleaning, twin contact mechanism provides high contact reliability. 4. improved resistance to soldering heat the resistance to soldering heat of contacts is improved by blocking heat from terminals by using the printed circuit board. features 1. for pcb mounting direct mounting to pc board. the terminal pin layout is in inch pitch. 3. smooth operation steel ball adopted to click me chanism for smooth operation. 5. cylinder lock type (mrkc) cylinder lock mechanism is ad opted, enabling choice of various types of key. rohs compliant part numbering t
for mrkc series, 6 types of keys are available. ( 01~03, 01b~03b ) 0 /y ?y 0 / 0 /y ? 0 / 0 / ? 0 /? 0 / 0 / ? 0 /? 0 /? 0 / 01 02 03 04 p/c straight right angle 45 ? 90 ? mrk y 1 y 01 y 2 y a y y r z mrkc y 2 y 01 y 3 y a r 01 r z double pole single pole 1 2 1 2 standard type mrk series code number of poles circuit function key removable positions angle of throw terminals series code number of poles circuit function key removable positions angle of throw terminals registration number of key t 1 grip material of key none r 0 /y ?y 0 / 0 /y ? 0 / 0 / ? 0 /? 0 / 0 / ? 0 /? 0 / 01 02 03 04 p/c straight right angle 45 ? 90 ? 60 ? double pole single pole 1 2 3 1 2 cylinder lock mrkc none r metal plastic none b on momentary. made to order products.
angle of throw 45 ? step 60 ? step 90 ? step key removable position code key position ? ? ? ? a b c d e f g h k l removable not removable specications rating 0.4va max. 20vdc max. initial contact resistance 200m
max. 0.5ma 200 vac dielectric strength 250vac 1 minute insulation resistance 100m
min. 100vdc electrical life 10,000 cycles operating force mrk 2.94 ? 0.98n ~ cm mrkc 2.94 ? 1.47n ~ cm operating temperature range 20 ?? 70 ? storage temperature range 40 ?? 80 ? mrk ~ mrkc standard accessories ? supplied with switch - 1 b s u o b n f key 4 f s j f t mrk mrkc 1 b s u / p 140007050010 140009002602 140009003061 % j n f o t j p o t key type "01" key type "01b" grip material plastic metal plastic ? each switch comes with two keys. 4 i p x o j o 1 p t j u j p o ? 4 i p x o j o 1 p t j u j p o ? 4 i p x o j o 1 p t j u j p o ?
mrk 45 ? step 3&4-position ? pc type y straight ? right angle single pole, double pole single pole double pole part no. key removable position a portion circuit function connecting position circuit diagram ? position ? position ? position ? position ? position ? position ? position ? position mrk1031d z mrk2031d z mrk1031d r z ? mrk2031d r z on on on ? mrk1031e z ? mrk2031e z ? mrk1031e r z ? mrk2031e r z ? mrk1031f z ? mrk2031f z mrk1031f r z ? mrk2031f r z mrk1031g z ? mrk2031g z ? mrk1031g r z ? mrk2031g r z ? mrk1031h z ? mrk2031h z ? mrk1031h r z ? mrk2031h r z mrk1031k z ? mrk2031k z ? mrk1031k r z ? mrk2031k r z mrk1031l z ? mrk2031l z mrk1031l r z ? mrk2031l r z mrk1041d z ? mrk2041d z ? mrk1041d r z ? mrk2041d r z on on on on connecting terminals single pole c1 1c1 2c1 3c1 4 double pole c1 1 c2 5 c1 2 c2 6 c1 3 c2 7 c1 4 c2 8 ? c2 is not available in single pole versions. ? terminal numbers are not shown on the switch. ? terminal numbers are not shown on the switch. made to order products. ? position iv is not available in mrk1031 and mrk2031 series. ? inquiry products. ? in single pole versions, terminals (c2), (5), (6), and (7) are not provided. ? terminal numbers are not shown on the switch. ? in switches with switching function d, e, f, g, h, k, and l , terminals (4) and (8) are not provided.
mrk 90 ? step 2 position part no. key removable position a portion circuit function connecting position circuit diagram ? position ? position ? position ? position ? mrk1012a z ? mrk2012a z on on ? mrk1012b z ? mrk2012b z mrk1012c z ? mrk2012c z mrk1022b z ? mrk2022b z on on connecting terminals single pole c1 1c1 2 double pole c1 1 c2 5 c1 2 c2 6 ? c2 is not available in single pole versions. on momentary part no. key removable position a portion circuit function connecting position circuit diagram ? position ? position ? position ? position mrk1012a r z mrk2012a r z on on ? mrk1012b r z mrk2012b r z ? mrk1012c r z ? mrk2012c r z ? mrk1022b r z ? mrk2022b r z on on connecting terminals single pole c1 1c1 2 double pole c1 1 c2 5 c1 2 c2 6 ? c2 is not available in single pole versions. on momentary ? right angle single pole double pole ? in single pole versions, terminals (c2), (5), and (6) are not provided. ? terminal numbers are not shown on the switch. ? terminal numbers are not shown on the switch. ? terminal numbers are not shown on the switch. made to order products. ? inquiry products. on momentary. ? semi-standard products. ? pc type y straight single pole, double pole
mrkc 45 ? step 3 position part no. key removable position a portion circuit function connecting position circuit diagram ? ? position ? position ? position ? position ? position ? position mrkc1031l 01 z ? mrkc1031l t z ? mrkc2031l t z on on on mrkc1041l 01 z mrkc1041l 01b z ? mrkc1041l t z ? mrkc2041l t z on on on connecting terminals single pole c1 1c1 2c1 3 double pole c1 1 c2 5 c1 2 c2 6 c1 3 c2 7 ? c2 is not available in single pole versions. on momentary part no. key removable position a portion circuit function connecting position circuit diagram ? position ? position ? position ? position ? position ? position ? mrkc1031l r 01 z ? mrkc1031l r t z ? mrkc2031l r t z on on on ? mrkc1041l r t z ? mrkc2041l r t z on on on connecting terminals 1 pole c1 1c1 2c1 3 2 pole c1 1 c2 5 c1 2 c2 6 c1 3 c2 7 ? c2 is not available in single pole versions. on momentary ? right angle single pole, double pole ? in single pole versions, terminals (c2), (5), (6), and (7) are not provided. ? terminal numbers are not shown on the switch. ? in single pole versions, terminals (c2), (5), (6), and (7) are not provided. ? terminal numbers are not shown on the switch. the box t should show key registration no. and key grip material code. made to order products. ? inquiry products. on momentary. ? pc type y straight single pole, double pole
mrkc 60 ? step 3 position part no. key removable position a portion circuit function connecting position circuit diagram ? ? position ? position ? position ? position ? position ? position ? mrkc1033d t z ? mrkc2033d t z on on on ? mrkc1033l t z ? mrkc2033l t z connecting terminals single pole c1 1c1 2c1 3 double pole c1 1 c2 5 c1 2 c2 6 c1 3 c2 7 ? c2 is not available in single pole versions. on momentary part no. key removable position a portion circuit function connecting position circuit diagram ? ? position ? position ? position ? position ? position ? position mrkc1033d r 01 z ? mrkc1033d r t z ? mrkc2033d r t z on on on ? mrkc1033l r t z ? mrkc2033l r t z connecting terminals single pole c1 1c1 2c1 3 double pole c1 1 c2 5 c1 2 c2 6 c1 3 c2 7 ? c2 is not available in single pole versions. on momentary ? in single pole versions, terminals (c2), (5), (6), and (7) are not provided. ? terminal numbers are not shown on the switch. ? in single pole versions, terminals (c2), (5), (6), and (7) are not provided. ? terminal numbers are not shown on the switch. ? right angle the box t should show key registration no. and key grip material code. made to order products. ? inquiry products. ? pc type y straight single pole, double pole single pole, double pole
mrkc 90 ? step 2 position ? in single pole versions, terminals (c2), (5), (6), and (7) are not provided. ? terminal numbers are not shown on the switch. ? in single pole versions, terminals (c2), (5), (6), and (7) are not provided. ? terminal numbers are not shown on the switch. ? right angle the box t should show key registration no. and key grip material code. made to order products. ? inquiry products. part no. key removable position a portion circuit function connecting position circuit diagram ? ? position ? position ? position ? position mrkc1012a 01 z ? mrkc1012a t z ? mrkc2012a t z on on ? mrkc1012b t z ? mrkc2012b t z ? mrkc1022b t z ? mrkc2022b t z on on connecting terminals single pole c1 1c1 2 double pole c1 1 c2 5 c1 2 c2 6 ? c2 is not available in single pole versions. on momentary part no. key removable position a portion circuit function connecting position circuit diagram ? ? position ? position ? position ? position ? mrkc1012a r 01 z ? mrkc1012a r t z ? mrkc2012a r t z on on ? mrkc1012b r t z ? mrkc2012b r t z connecting terminals single pole c1 1c1 2 double pole c1 1 c2 5 c1 2 c2 6 ? c2 is not available in single pole versions. on momentary on momentary. ? pc type y straight single pole, double pole single pole, double pole
mrk ~ mrkc pc hole layouts top view poles single pole ~ double poles terminals steps 2 step 90 ? 3 step 45 ? ~ 60 ? 4 step 45 ? pc type straight right angle pc type straight right angle for stand-off pins for terminal pins key mounting dimensions series mrk mrkc grip material plastic metal plastic dimensions 1. soldering ? manual soldering device solder iron. 360 ? max. 3 sec. max. ? auto soldering method jet wave or dip type 275 ? max. 6 sec. max ? preheat should be within 80-120 ? , 120sec. precautions 2. flux cleaning ? solvent : alcohol type. ? mrk and mrkc series are not washable. to wash the pc board, clean the soldering surface of the pc board with a brush so that the switch is not exposed to the cleaning solution. speci cations subject to change without notice.
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