MRB12B-A NKK Switches, MRB12B-A Datasheet - Page 4

• Manufacturer Part Number: MRB12B-A
• Description: SW ROTARY SPDT STR KNOB BLACK
• Manufacturer: NKK Switches
• Series: MRBr
• Type: Miniature PCB Process Sealed Rotariesr

Specifications of MRB12B-A

• Number Of Positions: 2
• Number Of Decks: 1
• Number Of Poles Per Deck: 1
• Circuit Per Deck: SPDT
• Contact Rating @ Voltage: 0.4VA @ 28VAC/DC
• Actuator Type: Knob
• Mounting Type: Panel, PCB Through Hole
• Termination Style: PC Pin
• Orientation: Vertical
• Angle Of Throw: 90°
• Index Angle: 90 deg
• Contact Style: Non Shorting
• Contact Form: SPDT
• Color: Black
• Contact Material: Brass
• Contact Plating: Tin
• Dielectric Strength: 500 VoltsAC
• Voltage Rating: 28 VoltsAC/DC
• Current Rating: 0.4 Volt-Amp at 28 VoltsAC/DC
• Actuator: Shaft Actuated, with Knob
• Cap Color: Black
• Contact Rating: 0.4 Volt-Amp at 28 VoltsAC/DC
• Switch Function: ON - NONE - ON
• Voltage Rating Ac: 28 Volts
• Voltage Rating Dc: 28 Volts
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(2.28)
Miniature PCB Process Sealed Rotaries
(2.28)
.090
(2.28)
Keyway
.090
.090
.122
(3.1) Dia
(2.28)
.090
Keyway
.122
(3.1) Dia
.122
(3.1) Dia
POS 1
(3.1) Dia
.122
POS 1
45°
POS 2
(14.5)
(15.24)
.571
.600
(14.5)
(15.24)
.571
90°
.600
45°
Keyway
POS 3
Keyway
POS 3
POS 1
POS 3
(0.5) Typ
.020
POS 1
POS 3
(0.5) Typ
.020
90°
90°
Double Flat with
M6 P0.75
M6 P0.75
Double Flat with
M6 P0.75
(10.0)
.394
M6 P0.75
(10.0)
.394
(10.0)
.394
(10.0)
.394
Actuator shown in Position 1
Actuator shown in Position 1
Actuator shown in Position 1
Actuator shown in Position 1
(0.7) Typ
.028
(7.0)
.276
(9.4)
.370
.276
(7.0)
(0.7) Typ
.028
(7.0)
.276
(7.0)
.276
(9.4)
.370
(7.62)
TYPICAL SWITCH DIMENSIONS
.300
(11.0)
.433
(11.0)
.433
(7.62)
.300
(2.54)
.100
(2.54)
.100
(2.54)
.100
(3.5)
.138
.020
(3.5)
.138
(0.5) Typ
(2.54) Typ
.020
(0.5) Typ
.100
(2.54) Typ
(5.08)
.200
(5.08)
.100
.200
(2.54)
.100
(2.54) Typ
.100
(2.54) Typ
.100
(2.54) Typ
.100
(2.54)
.100
(2.54)
.100
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Single pole model does not have terminals 4, 5, 6 & C2
4
C1
3
C1
2
2
1
1
1
Single pole model does not have terminals 4, 5 & C2
5
1
(15.74)
.620
2
(15.74)
.620
2
(10.16)
(10.16)
.400
.400
C2
C1
C1
(0.7) Dia Typ
.028
(5.08)
.200
(0.7) Dia Typ
.028
(5.08)
.200
.354
4
(9.0)
C2
4
(0.7) Typ
.028
C2
5
6
5
(0.7) Typ
.028
.354
(9.0)
(0.7) Dia Typ
.028
(15.74)
(0.7) Dia Typ
.028
(15.74)
.620
90° Indexing • SPDT & DPDT • Straight PC
(16.3)
.620
.642
45° Indexing • SP3T & DP3T • Straight PC
(16.3)
.642
(3.5)
.138
(3.5)
.138
90° Indexing • DPDT • Right Angle PC
90° Indexing • SPDT • Right Angle PC
(5.08)
.200
(5.08)
.200
(2.54)
.100
C2
C2
(2.54)
C2
C1
4
5
6
4
5
.100
C1
C L
(10.16)
(10.16)
.400
.400
C L
5
2
2
4
1
Series MRB
1
1
2
3
C1
1
2
C1
.039
(2.54) Typ
(7.62)
.039
.039
(1.0) Dia Typ
.100
.300
(1.0) Dia Typ
(1.0) Dia Typ
(2.54) Typ
(2.54) Typ
(2.54) Typ
(7.62)
.039
(5.08)
(5.08)
.100
.100
.100
(1.0) Dia Typ
.200
.300
.200
(2.54)
.100
(2.54)
.100
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