MRB12B-A NKK Switches, MRB12B-A Datasheet - Page 2

• 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

Series MRB
Miniature PCB Process Sealed Rotaries
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
G
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.
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G29