Series MRB Miniature PCB Process Sealed Rotaries s e gl g General Specifications o T s er k c o R Electrical Capacity (Resistive Load) Logic Level: 0.4VA maximum @ 28V AC/DC maximum s n (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V) o utt Note: See Supplement Index to find explanation of operating range. b h s u P B Other Ratings P d Contact Resistance: 80 milliohms maximum e nat Insulation Resistance: 100 megohms minimum @ 500V DC umi Dielectric Strength: 500V AC minimum for 1 minute minimum Ill Mechanical Life: 30,000 operations minimum e bl Electrical Life: 10,000 operations minimum a m m Operating Torque: 0.04Nm average a gr Contact Timing: Nonshorting (break-before-make) o Pr Indexing: 45° for On-On-On & 90° for On-None-On s k c ylo Materials & Finishes Ke Shaft: Brass with nickel plating Bushing: Zinc alloy with nickel plating Frame/Bracket: Steel with tin plating s e ariG Movable Contacts: Beryllium copper spring with gold plating ot Stationary Contacts: Copper with gold plating R Terminals: Brass with tin plating Base: Polyamide s e d Sli Environmental Data Operating Temperature Range: –10°C through +70°C (+14°F through +158°F) Humidity: 90 ~ 95% humidity for 96 hours @ 40°C (104°F) s e Vibration: 10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range actil & returning in 1 minute; 3 right angled directions for 2 hours T Shock: 50G (490m/s2) acceleration (tested in 3 right angled directions, with 5 shocks in each direction) Sealing: Use of optional o-ring AT535 with MRB meets IP67 of IEC60529 specifications Tilt Installation Mounting Torque: .686Nm (6.08 lb•in) Cap Installation Force: 19.6 ~ 29.4N (4.41 ~ 6.61 lbf) h c u o T PCB Processing Soldering: Wave Soldering Recommended: See Profile B in Supplement section s Manual Soldering: See Profile B in Supplement section or at Cleaning: Automated cleaning. See Cleaning specifications in Supplement section. c di n I Standards & Certifications s orie The MRB Series rotaries have not been tested for UL recognition or CSA certification. s These switches are designed for use in a low-voltage, low-current, logic-level circuit. s e c When used as intended in a logic-level circuit, the results do not produce hazardous energy. c A nt e m e pl p u S G28 www.nkkswitches.com

Series MRB Miniature PCB Process Sealed Rotaries s e gl Distinctive Characteristics g o T s er k c o Double flatted bushing prevents rotation in panel and increases R stability. s n o utt b h Totally sealed construction, achieved with combination of an us P interior o-ring, a seal between the frame and base, plus insert B P molded terminals, prevents contact contamination and allows d e at automated soldering and cleaning. n mi u Ill e bl Positive detent mechanism for distinct feel and audible ma m feedback. a gr o Pr s Break-before-make contact timing with sliding k c o contact mechanism. yl e K s Metal bushing and frame/bracket provide e Gari durability. ot R Panel seal, achieved with use of optional es d exterior o-ring, conforms to IP67 of IEC60529 Sli Standards. s e High contact reliability achieved by the self-cleaning actil T contact mechanism. Tilt .100” x .100” (2.54mm x 2.54mm) terminal spacing conforms to standard PC board grid spacing for straight and right angle mounting. Actual Size ch u o Insert molded terminals lock out flux and other contaminants. T s or at c di n I s e ori s s e c c A nt e m e pl p u S www.nkkswitches.com G29

Series MRB Miniature PCB Process Sealed Rotaries s e gl TYPICAL SWITCH ORDERING EXAMPLE g o T MRB 1 2 B A s er k c o R s on Poles Knobs Colors utt Terminals b SPDT A Plain Black For Plain Knob sh 1 u SP3T B Straight with Bracket P B Small Color Tipped No Black B DPDT H Right Angle with Bracket Code d P 2 DP3T C Large Color Tipped ate For Color Tipped n mi A Black Illu Circuits & Indexing DESCRIPTION FOR TYPICAL ORDERING EXAMPLE B White ble 2 ON NONE ON 90° MRB12B-A ma C Red m 4 ON ON ON 45° gra E Yellow o Pr F Green Plain Black Knob s G Blue k c ylo H Gray Ke SPDT with ON-NONE-ON Circuit & 90° Indexing es Straight PC Terminals ariG with Bracket ot R POLES & CIRCUITS s e d Actuator Positions Connected Terminals Throw & Schematics Sli Note: Terminal numbers Pole Model Position 1 Position 2 Position 3 Position 1 Position 2 Position 3 are not actually on switch s C1 e ctil MRB12 ON NONE ON C1-1 OPEN C1-2 SPDT a T 1 2 SP C1 MRB14 ON ON ON C1-1 C1-2 C1-3 SP3T Tilt 1 23 C1 C2 MRB22 ON NONE ON C1-1 C2-4 OPEN C1-2 C2-5 DPDT 1 2 4 5 h c DP ou C1 C2 T MRB24 ON ON ON C1-1 C2-4 C1-2 C2-5 C1-3 C2-6 DP3T 1 23 456 s or at dic TERMINALS n I Straight PC Terminals Right Angle PC Terminals es B H ori with Bracket with Bracket s s e c c A nt SPDT DPDT e m e pl p u S G30 www.nkkswitches.com

Series MRB Miniature PCB Process Sealed Rotaries s e TYPICAL SWITCH DIMENSIONS gl g o T 90° Indexing • SPDT & DPDT • Straight PC s 90° M6 P0.75 .(002.50) Typ (.00.278) Dia Typ cker POS 1 POS 3 (2.54) (2.54) Typ Ro .100 4 .100 1 4 1 2 5 (15.74) 5 2 s (5.08) .620 on (2.28) .200 C1 C2 C2 C1 ( 5.2.0080) butt .090 h s u .(132.21) (1.547.51) Keyway .(1309.40) .(27.706) (.1413.03) (.313(.2.581.0)504) Typ (1.400.106) (.00.278) Typ ( 1.400.106) . 0(13.09) Dia Typ Pd PB e at n Actuator shown in Position 1 Single pole model does not have terminals 4, 5 & C2 MRB12B mi u Ill e 90° Indexing • SPDT • Right Angle PC bl a m m a (2.28) POS 1 Double Flat with (1.56.2704) ogr .090 M6 P0.75 Pr (2.54) (2.54) Typ 90° (.1664.32) (5.08) .100 .100(2.54) ocks .(395.04) .200 C1 2 1 .100 eyl Keyway K POS 3 (.72.706) 1 2 C1 (3.5) ( 7.3.6020) (3.1) (0.5) Typ (0.7) Typ (2.54) Typ (0.7) Dia Typ .138 s .122 (15.24) .020 (10.0) .02(98.4) (7.62) (2.54) .100 (2.54) .(052.088) CL .(013.09) Dia Typ Garie .600 .394 .370 .300 .100 .100 .200 ot R Actuator shown in Position 1 MRB12H s e 90° Indexing • DPDT • Right Angle PC d Sli (15.74) (2.28) POS 1 Double Flat with .620 .090 M6 P0.75 4 5 C2 (2.54) (2.54) Typ .100 .100 s 90° (9.0) ( 1.664.32) ( 5.2.0080) CC21 52 41 ( 2.1.0504) Tactile .354 Keyway POS 3 (7.62) (.72.706) 1 2 C1 (3.5) .300 .(132.12) (.00.250) Typ (.00.278) Typ (2.1.0504) ( 2.1.0504) Typ (.00.278) Dia Typ .138 CL .(013.09) Dia Typ Tilt (15.24) (10.0) (9.4) (7.62) (2.54) (2.54) (5.08) .600 .394 .370 .300 .100 .100 .200 Actuator shown in Position 1 MRB22H h c u o T 45° Indexing • SP3T & DP3T • Straight PC POS 2 .(002.50) Typ (.00.278) Dia Typ ors 45° 45° M6 P0.75 (2.54) Typ (2.54) Typ at POS 1 POS 3 .100 .100 dic 4 4 1 n 1 5 2 I 2 5 (15.74) 6 3 (5.08) 3 6 .620 (5.08) s (2.28) .200 C1 C2 C2 C1 .200 orie .090 ss e .(132.21) Keyway (2.1.0504) Typ (.00.278) Typ (1.400.106) .(013.09) Dia Typ Acc (14.5) (10.0) (7.0) (11.0) (3.5) (10.16) .571 .394 .276 .433 .138 .400 nt e m e Actuator shown in Position 1 Single pole model does not have terminals 4, 5, 6 & C2 MRB14B pl p u S www.nkkswitches.com G31

Series MRB Miniature PCB Process Sealed Rotaries s e gl TYPICAL SWITCH DIMENSIONS g o T 45° Indexing • SP3T • Right Angle PC (15.74) ckers ( 2.0.2980) POS 1 DMo6u Pb0le.7 F5lat with .620 ( 2.1.0504) Typ ( 2.1.0504) Typ Ro 45° (5.08) (2.54) .200 .100 POS 2 (16.3) C1 3 2 1 .642 ns 45° .(395.04) (7.62) o Keyway .300 utt POS 3 shb (.72.706) 1 2 3 C1 (3.5) CL .(013.09) Dia Typ Pu .(132.12) (.00.250) Typ (.00.278) Typ ( 2.1.0504) Typ (.00.278) Dia Typ .138 B (15.24) (10.0) (9.4) (7.62) (2.54) (2.54) Typ (5.08) d P .600 .394 .370 .300 .100 .100 .200 e at MRB14H Actuator shown in Position 1 n mi u Ill 45° Indexing • DP3T • Right Angle PC e bl (15.74) mma ( 2.0.2980) POS 1 DMo6u Pb0le.7 F5lat with 4 5.6260 C2 ( 2.1.0504) Typ ( 2.1.0504) Typ Progra 45°POS 2 (16.3) ( 5.2.0080) C2 6 5 4 ( 2.1.0504) .642 C1 3 2 1 (9.0) 45° .354 ks Keyway (7.62) Keyloc .(132.21) (.00P.O250S) T3yp (.00(.72.27.708)6 )Typ (2.1.0504) ( 2.1.0504) Typ 1 2 3 C1(.00.278) Dia Typ (.313.58) CL . (0.133.009)0 Dia Typ (15.24) (10.0) (9.4) (7.62) (2.54) (2.54) Typ (5.08) .600 .394 .370 .300 .100 .100 .200 s e ariG MRB24H Actuator shown in Position 1 ot R KNOBS s AT433 AT4103 Small AT4104 Large e A B C d Sli Plain Black (19.0) Dia Color Tipped (.1663.00) Dia Color Tipped (.1780.90) Dia (.1714.08) Dia (.93.754) Dia (.1413.03) Dia Material: .433 Polyester Base: Polyester Base: es Polyacetal Black Black Tactil (1.531.02) (9.5) (.1546.33) (9.5) (.1652.82) (9.5) Color: .374 Polyamide Tip .374 Polyamide Tip .374 Black Colors: Colors: (0.5) (0.5) (0.5) .020 A, B, C, E, F, G, H .020 A, B, C, E, F, G, H .020 Tilt A B C E F G H Color Codes: Black White Red Yellow Green Blue Gray ch Shaft Detail Mounting Precaution Standard Hardware Supplied u To (3.1) for Cap Clearance on AT513M Hex Nut .122 (2.28) Right Angle Models AT545 Locking Ring .090 AT509 Lockwasher s When mounting a right ator (.1309.04) angle switch, a cap clear- OATp5ti3o5n aOl -Hrianrgd wfoar rPeanel Seal dic rance of .035” (0.9mm) Interruption (0.9) PCB In (1.0) is recommended. by end of PCB .035 See Supplement for details .039 s e ori PANEL CUTOUTS & MAXIMUM EFFECTIVE PANEL THICKNESS s s e c c A With Standard Without Sealed Panel (5.6) (6.2) Dia nt Hardware (6.35) Dia (6.5) Locking Ring .220 with 1 Hex Nut & .244 pleme .087” (2.2mm) .25(02.2) Dia .256 .118” (3.0mm) (.62.5305) Dia .(002.64) 1.1 R6u5b” b(e4r. 2Om-mrin)g (.52.143) p .087 u S G32 www.nkkswitches.com

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: N KK Switches: MRB12H MRB12B-A MRB12B-BB MRB12B-BC MRB12H-A MRB12H-BC MRB12H-BE MRB14B-A MRB14H-A MRB22B-CB MRB22H-BA MRB24B-BC MRB24B-CA MRB24B-CG MRB24H-A MRB24H-BA MRB24H-BB MRB24H-BC MRB24B-CB MRB14H-BH MRB24H-CA MRB14B MRB24B MRB12B MRB22B MRB14H MRB24H MRB24B-A MRB14B-BH