Miniature PCB Process Sealed Rotaries
Series MRB
Distinctive Characteristics
Double flatted 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.
Actual Size
Insert molded terminals lock out flux and other contaminants.
N KK 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 Specifications
Electrical Capacity (Resistive Load)
Logic Level: 0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V) Note: See Supplement Index to find explanation of operating range.
Other Ratings
Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: Operating Torque: Contact Timing: Indexing:
80 milliohms maximum 100 megohms minimum @ 500V DC 500V AC minimum for 1 minute minimum 30,000 operations minimum 10,000 operations minimum 0.04Nm average Nonshorting (break-before-make) 45° for On-On-On & 90° for On-None-On
Materials & Finishes
Shaft: Bushing: Frame/Bracket: Movable Contacts: Stationary Contacts: Terminals: Base:
Brass with nickel plating Zinc alloy with nickel plating Steel with tin plating Beryllium copper spring with gold plating Copper with gold plating Brass with tin plating Polyamide
Environmental Data
Operating Temperature Range: Humidity: Vibration: Shock:
–10°C through +70°C (+14°F through +158°F) 90 ~ 95% humidity for 96 hours @ 40°C (104°F) 10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range & returning in 1 minute; 3 right angled directions for 2 hours 50G (490m/s2) acceleration (tested in 3 right angled directions, with 5 shocks in each direction)
Installation
Mounting Torque: Cap Installation Force:
.686Nm (6.08 l b • in) 19.6 ~ 29.4N (4.41 ~ 6.61 lbf)
PCB Processing
Soldering: Cleaning:
Wave Soldering Recommended: See Profile B in Supplement section Manual Soldering: See Profile B in Supplement section Automated cleaning. See Cleaning specifications in Supplement section.
Standards & Certifications
UL Recognition or CSA Certification:
The MRB Series rotaries have not been tested for UL recognition or CSA certification. 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 hazardous energy.
N KK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Miniature PCB Process Sealed Rotaries
TYPICAL SWITCH ORDERING EXAMPLE
Series MRB
MRB
POLES
1 2 SPDT SP3T DPDT DP3T
1
B H
2
TERMINALS
Straight with Bracket Right Angle with Bracket
B
KNOBS
A B C Plain Black
A
COLORS
For Plain Knob No Code A B C E F G H Black
Small Color Tipped Large Color Tipped
For Color Tipped Black White Red Yellow Green Blue Gray
CIRCUITS & INDEXING
2 4 ON ON NONE ON ON ON 90° 45°
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
MRB12B-A
Plain Black Knob
SPDT with ON-NONE-ON Circuit & 90° Indexing
Straight PC Terminals with Bracket
P OLES & CIRCUITS
Actuator Positions Pole Model MRB12 SP MRB14 ON ON ON C1-1 C1-2 C1-3 SP3T
123
Connected Terminals Position 1 C1-1 Position 2 OPEN Position 3 C1-2
Throw & Schematics Note: Terminal numbers are not actually on switch
C1
Position 1 ON
Position 2 NONE
Position 3 ON
SPDT
1
2 C1
C1
C2
MRB22 DP MRB24
ON
NONE
ON
C1-1 C2-4
OPEN
C1-2 C2-5
DPDT
1
2
C1
4
5 C2
ON
ON
ON
C1-1 C2-4 C1-2 C2-5 C1-3 C2-6
DP3T
123 456
TERMINALS B
Straight PC Terminals with Bracket
H
Right Angle PC Terminals with Bracket
SPDT
DPDT
N KK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Miniature PCB Process Sealed Rotaries
TYPICAL SWITCH DIMENSIONS
90° Indexing • SPDT & DPDT • Straight PC
90° POS 1 POS 3 M6 P0.75 (0.5) Typ .020 (2.54) .100
Series MRB
(0.7) Dia Typ .028
1 2 4 5 4 1 2
(2.54) Typ .100
5
(2.28) .090 (3.1) Dia .122 Keyway (14.5) .571 (10.0) .394 (7.0) .276 (11.0) .433
(5.08) .200
(15.74) .620
C1
C2
C2
C1
(5.08) .200 (1.0) Dia Typ .039
(2.54) Typ .100 (3.5) .138
(0.7) Typ .028 (10.16) .400
(10.16) .400
MRB12B
Actuator shown in Position 1
Single pole model does not have terminals 4, 5 & C2
90° Indexing • SPDT • Right Angle PC
(2.28) .090 POS 1
Double Flat with M6 P0.75
(15.74) .620 (2.54) .100
C1 2 1
90° Keyway POS 3 (3.1) Dia .122 (0.5) Typ .020 (10.0) .394
(7.0) .276 (0.7) Typ .028 (9.4) .370
1 2 C1
(9.0) .354
(16.3) .642
(5.08) .200
(2.54) Typ .100 (2.54) .100 (7.62) .300
(15.24) .600
(7.62) .300
(2.54) .100
(2.54) Typ .100 (2.54) .100
(3.5) (0.7) Dia Typ .138 .028 (5.08) .200
C L
(1.0) Dia Typ .039
MRB12H
Actuator shown in Position 1
90° Indexing • DPDT • Right Angle PC
(2.28) .090 POS 1 Double Flat with M6 P0.75 (15.74) .620
4 5 C2
90° Keyway POS 3 (3.1) Dia .122 (0.5) Typ .020 (10.0) .394 (7.0) .276 (0.7) Typ .028 (9.4) .370
1 2 C1
(9.0) .354
(16.3) .642
(5.08) .200
(2.54) .100
C2 C1 5 2 4 1
(2.54) Typ .100 (2.54) .100 (7.62) .300 C L (1.0) Dia Typ .039
(15.24) .600
(7.62) .300
(2.54) .100 (2.54) .100
(2.54) Typ .100 (2.54) .100
(3.5) (0.7) Dia Typ .138 .028 (5.08) .200
MRB22H
Actuator shown in Position 1
45° Indexing • SP3T & DP3T • Straight PC
POS 2 POS 1 45° 45° POS 3 M6 P0.75 (0.5) Typ .020 (2.54) Typ .100
1 2
(0.7) Dia Typ .028
4 5 6 C2 4 5 1 2 3 C1
(2.54) Typ .100
(2.28) .090 (3.1) Dia .122 Keyway (14.5) .571 (10.0) .394 (7.0) .276 (11.0) .433
(5.08) .200
3 C1
(15.74) .620
6 C2
(5.08) .200 (1.0) Dia Typ .039
(2.54) Typ .100 (3.5) .138
(10.16) .400
(0.7) Typ .028
(10.16) .400
MRB14B
Actuator shown in Position 1
Single pole model does not have terminals 4, 5, 6 & C2 03-07
N KK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
Miniature PCB Process Sealed Rotaries
TYPICAL SWITCH DIMENSIONS
45° Indexing • SP3T • Right Angle PC
(2.28) .090 POS 1 45° POS 2 45° Keyway POS 3 (3.1) Dia .122 (0.5) Typ .020 (7.0) .276 (0.7) Typ .028 (9.4) .370
1 2 3 C1
Series MRB
Double Flat with M6 P0.75
(15.74) .620
(9.0) .354
(16.3) .642
(2.54) Typ .100 (5.08) .200 C1
3
2
1
(2.54) Typ .100 (2.54) .100 (7.62) .300
(15.24) .600
(10.0) .394
(7.62) .300
(2.54) Typ .100 (2.54) (2.54) Typ .100 .100
(3.5) (0.7) Dia Typ .138 .028 (5.08) .200
C L
(1.0) Dia Typ .039
MRB14H
Actuator shown in Position 1
45° Indexing • DP3T • Right Angle PC
(2.28) .090 POS 1 45° POS 2 45° Keyway POS 3 (3.1) Dia .122 (0.5) Typ .020 (7.0) .276 (0.7) Typ .028 (9.4) .370
1 2 3 C1
Double Flat with M6 P0.75
(15.74) .620
4 5 6 C2
(9.0) .354
(16.3) .642
(2.54) Typ .100 (5.08) .200 C2
C1
(2.54) Typ .100
6 3 5 2 4 1
(2.54) .100 (7.62) .300
(15.24) .600
(10.0) .394
(7.62) .300
(2.54) (2.54) Typ .100 .100 (2.54) Typ (2.54) .100 .100
(3.5) (0.7) Dia Typ .138 .028 (5.08) .200
C L
(1.0) Dia Typ .039
MRB24H
Actuator shown in Position 1
KNOBS A
AT433 Plain Black
B
(19.0) Dia .748 (11.0) Dia .433
AT4103 Small Color Tipped
Material: Polyacetal Color: Black
(13.0) .512
Polyester Base: Black
(9.5) .374
(16.0) Dia .630 (9.5) Dia .374
C
AT4104 Large Color Tipped
(18.0) Dia .709 (11.0) Dia .433
(0.5) .020
Polyamide Tip Colors: A, B, C, E, F, G, H
(14.3) .563
Polyester Base: Black
(9.5) .374
(15.8) .622
(0.5) .020
Polyamide Tip Colors: A, B, C, E, F, G, H
(9.5) .374
(0.5) .020
Color Codes: Shaft Detail
(2.28) .090 (10.0) .394 (3.1) Dia .122 (1.0) .039
A
Black
B
White
C
Red
E
Yellow
F
Green
G
Blue
H
Gray
Mounting Precaution for Cap Clearance on Right Angle Models When mounting a right angle switch, a cap clearrance of .035” (0.9mm) is recommended.
Interruption by end of PCB
(0.9) .035
PCB
Standard Hardware Supplied AT513M Hex Nut AT507M Locking Ring AT509 Lockwasher Optional Hardware AT535 O-ring for Panel Seal See Supplement for details
PANEL CUTOUTS & MAXIMUM EFFECTIVE PANEL THICKNESS
With Standard Hardware .087” (2.2mm)
(6.5) .256
(6.35) Dia .250 (2.2) Dia .087
Without Locking Ring .118” (3.0mm)
(6.35) Dia .250
(5.6) .220 (0.6) .024
Sealed Panel with 2 Hex Nuts & 1 Rubber O-ring .165” (4.2mm)
(6.2) Dia .244 (5.4) .213
N KK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
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