nkk switches ? email: sales@nkkswitches.com ? phone (480) 991-0942 ? fax (480) 998-1435 ? www.nkkswitches.com 03-07 miniature pcb process sealed rotaries series MRB distinctive characteristics actual size double fatted bushing prevents rotation in panel and increases stability. totally sealed construction, achieved with combination of an interior o-ring, a seal between the frame and base, plus insert molded terminals, prevents contact contamination and allows automated soldering and cleaning. positive detent mechanism for distinct feel and audible feedback. break-before-make contact timing with sliding contact mechanism. metal bushing and frame/bracket provide durability. panel seal, achieved with use of optional exterior o-ring, conforms to ip67 of iec60529 standards. high contact reliability achieved by the self-cleaning contact mechanism. .100 x .100 (2.54mm x 2.54mm) terminal spacing conforms to standard pc board grid spacing for straight and right angle mounting. insert molded terminals lock out fux and other contaminants.
nkk switches ? email: sales@nkkswitches.com ? phone (480) 991-0942 ? fax (480) 998-1435 ? www.nkkswitches.com 03-07 miniature pcb process sealed rotaries series MRB general specifcations electrical capacity (resistive load) logic level: other ratings contact resistance: 80 milliohms maximum insulation resistance: 100 megohms minimum @ 500v dc dielectric strength: 500v ac minimum for 1 minute minimum mechanical life: 30000 operations minimum electrical life: 10000 operations minimum operating torque: 0.04nm average contact timing: nonshorting (break-before-make) indexing: 45 for on-on-on & 90 for on-none-on materials & finishes shaft: brass with nickel plating bushing: inc alloy with nickel plating frame/bracket: steel with tin plating movable contacts: beryllium copper spring with gold plating stationary contacts: copper with gold plating terminals: brass with tin plating base: polyamide environmental data operating temperature range: 10c through 0c (14f through 158f) humidity: 90 95 humidity for 9 hours @ 40c (104f) vibration: 10 55h with peak-to-peak amplitude of 1.5mm traversing the frequency range & returning in 1 minute 3 right angled directions for 2 hours shock: 50g (490m/s 2 ) acceleration (tested in 3 right angled directions with 5 shocks in each direction) installation mounting torque: .8nm (.08 l b ? i n) cap installation force: 19. 29.4n (4.41 .1 lbf) pcb processing soldering: wave soldering recommended: see profle b in supplement section manual soldering: see profle b in supplement section cleaning: automated cleaning. see cleaning specifcations in supplement section. standards & certifications ul recognition the MRB series rotaries have not been tested for ul recognition or csa certifcation. or csa certifcation: these switches are designed for use in a low-voltage low-current logic-level circuit. when used as intended in a logic-level circuit the results do not produce haardous energy.
nkk switches ? email: sales@nkkswitches.com ? phone (480) 991-0942 ? fax (480) 998-1435 ? www.nkkswitches.com 03-07 miniature pcb process sealed rotaries series MRB typical switch ordering example b poles 1 spdt sp3t 2 dpdt dp3t 2 circuits & indexing 2 on none on 90 4 on on on 45 terminals b straight with bracket h right angle with bracket 1 b straight pc terminals with bracket terminals spdt MRB h right angle pc terminals with bracket dpdt pole model actuator positions connected terminals throw & schematics position 1 position 2 position 3 position 1 position 2 position 3 note: terminal numbers are not actually on switch sp MRB12 on none on c1-1 open c1-2 spdt MRB14 on on on c1-1 c1-2 c1-3 sp3t dp MRB22 on none on c1-1 c2-4 open c1-2 c2-5 dpdt MRB24 on on on c1-1 c2-4 c1-2 c2-5 c1-3 c2-6 dp3t poles & circuits 1 c 1 2 1 2 3 c 1 1 c 1 2 4 5 c 2 1 2 3 4 5 6 c 1 c 2 knobs a plain black b small color tipped c large color tipped colors for plain knob no code black for color tipped a black b white c red e yellow f green g blue h gray a description for typical ordering example MRB12b-a spdt with on-none-on circuit & 90 indexing straight pc terminals with bracket plain black knob
nkk switches ? email: sales@nkkswitches.com ? phone (480) 991-0942 ? fax (480) 998-1435 ? www.nkkswitches.com 03-07 miniature pcb process sealed rotaries series MRB typical switch dimensions 45 indexing ? sp3t & dp3t ? straight pc MRB14b actuator shown in position 1 single pole model does not have terminals 4, 5, 6 & c2 90 indexing ? spdt & dpdt ? straight pc 90 indexing ? spdt ? right angle pc MRB12b actuator shown in position 1 single pole model does not have terminals 4, 5 & c2 MRB22h actuator shown in position 1 90 indexing ? dpdt ? right angle pc MRB12h actuator shown in position 1 pos 1 pos 3 (14.5) .571 90 (2.28) .090 (3.1) dia .122 keyway (11.0) .433 (3.5) .138 (2.54) ty p .100 (5.08) .200 (2.54) .100 (0.5) ty p .020 (10.0) .394 m6 p0.75 (7.0) .276 (7.62) .300 (2.54) .100 (5.08) .200 (1.0) dia ty p .039 (2.54) .100 (2.54) ty p .100 1 2 c l c1 (2.54) ty p .100 (1.0) dia ty p .039 (5.08) .200 (10.16) .400 4 5 c2 1 2 c1 (2.54) ty p .100 (1.0) dia ty p .039 (5.08) .200 (10.16) .400 4 5 c2 1 2 c1 3 6 (7.62) .300 (2.54) .100 (5.08) .200 (1.0) dia ty p .039 (2.54) .100 (2.54) ty p .100 1 2 c l c1 c2 4 5 (9.0) .354 (16.3) .642 (2.54) ty p .100 (2.54) .100 (5.08) .200 (3.5) .138 c1 1 2 (0.7) dia ty p .028 (15.74) .620 (9.4) .370 (0.7) ty p .028 (7.62) .300 (2.54) .100 (10.0) .394 double flat with m6 p0.75 (7.0) .276 90 (0.5) ty p .020 pos 1 pos 3 (3.1) dia .122 keyway (2.28) .090 (15.24) .600 (9.0) .354 (16.3) .642 (2.54) ty p .100 (2.54) .100 (5.08) .200 (3.5) .138 c1 1 2 (0.7) dia ty p .028 c2 5 4 (15.74) .620 (9.4) .370 (0.7) ty p .028 (7.62) .300 (2.54) .100 (2.54) .100 (10.0) .394 double flat with m6 p0.75 (7.0) .276 90 (0.5) ty p .020 pos 1 pos 3 (3.1) dia .122 keyway (2.28) .090 (15.24) .600 (15.74) .620 1 2 c1 c2 5 4 (0.7) ty p .028 (10.16) .400 (0.7) dia ty p .028 3 6 (11.0) .433 (3.5) .138 (2.54) ty p .100 (5.08) .200 (2.54) ty p .100 (0.5) ty p .020 (10.0) .394 m6 p0.75 (7.0) .276 45 45 pos 2 pos 1 pos 3 (14.5) .571 (2.28) .090 keyway (3.1) dia .122 (15.74) .620 1 2 c1 c2 5 4 (0.7) ty p .028 (10.16) .400 (0.7) dia ty p .028
nkk switches ? email: sales@nkkswitches.com ? phone (480) 991-0942 ? fax (480) 998-1435 ? www.nkkswitches.com 03-07 miniature pcb process sealed rotaries series MRB knobs a color codes: black white red yellow green blue a b c e f g gray h (11.0) dia .433 (19.0) dia .748 (9.5) .374 (13.0) .512 (0.5) .020 (16.0) dia .630 (9.5) dia .374 (14.3) .563 (9.5) .374 (0.5) .020 (11.0) dia .433 (18.0) dia .709 (9.5) .374 (15.8) .622 (0.5) .020 polyester base: black polyamide tip colors: a, b, c, e, f, g, h material: polyacetal color: black polyester base: black polyamide tip colors: a, b, c, e, f, g, h MRB24h actuator shown in position 1 45 indexing ? dp3t ? right angle pc MRB14h actuator shown in position 1 typical switch dimensions 45 indexing ? sp3t ? right angle pc (9.4) .370 (0.7) ty p .028 (7.62) .300 (2.54) .100 (10.0) .394 double flat with m6 p0.75 (7.0) .276 45 (0.5) ty p .020 45 pos 1 pos 2 pos 3 (3.1) dia .122 keyway (2.28) .090 (15.24) .600 (9.0) .354 (16.3) .642 (2.54) ty p .100 (2.54) ty p .100 (5.08) .200 (3.5) .138 c1 1 2 (0.7) dia ty p .028 3 (15.74) .620 (9.0) .354 (16.3) .642 (2.54) ty p .100 (2.54) ty p .100 (5.08) .200 (3.5) .138 c1 1 2 (0.7) dia ty p .028 c2 5 4 3 6 (15.74) .620 (9.4) .370 (0.7) ty p .028 (7.62) .300 (2.54) .100 (2.54) .100 (10.0) .394 double flat with m6 p0.75 (7.0) .276 45 (0.5) ty p .020 45 pos 1 pos 2 pos 3 (3.1) dia .122 keyway (2.28) .090 (15.24) .600 (7.62) .300 (2.54) ty p .100 (5.08) .200 (1.0) dia ty p .039 (2.54) .100 (2.54) ty p .100 1 2 c l c1 3 b at4103 small color tipped c at4104 large color tipped panel cutouts & maximum effective panel thickness with standard hardware .087 (2.2mm) shaft detail (1.0) .039 (3.1) dia .122 (10.0) .394 (2.28) .090 mounting precaution for cap clearance on right angle models when mounting a right angle switch, a cap clear- rance of .035 (0.9mm) is recommended. standard hardware supplied at513m hex nut at507m locking ring at509 lockwasher optional hardware at535 o-ring for panel seal see supplement for details (6.2) dia .244 (5.4) .213 without locking ring .118 (3.0mm) sealed panel with 2 hex nuts & 1 rubber o-ring .165 (4.2mm) (6.35) dia .250 (6.5) .256 (2.2) dia .087 (6.35) dia .250 (5.6) .220 (0.6) .024 at433 plain black (0.9) .035 interruption b y end of pcb pcb (7.62) .300 (2.54) ty p .100 (5.08) .200 (1.0) dia ty p .039 (2.54) .100 (2.54) ty p .100 1 2 c l c1 c2 4 5 3 6
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