MRA112-BC Rotary Switch Equivalent & Substitute Parts

Part Overview

The MRA112-BC is a rotary switch manufactured by NKK Switches, designed for panel-mount applications requiring multi-position selection. This component features adjustable index stops ranging from 2 to 12 positions with a single pole, single throw per deck (SP12T) configuration. The switch is rated for 250mA AC at 125 VAC and utilizes a non-shorting (BBM) contact timing design.

The MRA112-BC is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance and repairs.

Substiute Parts

MRA112-BC

NKK SwitchesIn Stock: 821MRA112-BC Datasheet

Current PartRFQ

MRAN112-BC

NKK SwitchesIn Stock: 1048MRAN112-BC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MRA112-BC is determined by the following critical parameters:

• Number of Positions: 2 ~ 12 adjustable positions
• Circuit Configuration: SP12T (single pole, 12 throw maximum)
• Current Rating: 250mA AC minimum
• Voltage Rating: 125 VAC minimum
• Contact Timing: Non-Shorting (BBM)
• Mounting Type: Panel Mount, Through Hole
• Termination Style: PC Pin
• Actuator Type: Knob
• Angle of Throw: 30°

The MRAN112-BC is identified as a manufacturer-recommended substitute. This part maintains compatibility with the electrical and mechanical specifications required for direct replacement in applications currently using the MRA112-BC.

Parameter Comparison

Engineering Selection Recommendations

The MRAN112-BC is designated as the manufacturer-recommended substitute for the obsolete MRA112-BC. Both components are manufactured by NKK Switches, ensuring design continuity and compatibility with existing applications.

The MRA112-BC carries ROHS3 compliance and is unaffected by REACH regulations. The MRAN112-BC is currently in active production status, providing improved supply chain availability compared to the obsolete MRA112-BC.

Selection between these parts should be based on application requirements and availability. The active production status of the MRAN112-BC makes it the preferred choice for new designs and ongoing system support where supply continuity is a consideration.

Frequently Asked Questions (FAQ)

Q: Can the MRAN112-BC directly replace the MRA112-BC in existing applications?

A: The MRAN112-BC is the manufacturer-recommended substitute for the MRA112-BC. Both are NKK Switches products designed for rotary switch applications. Compatibility is confirmed by the manufacturer's substitution designation.

Q: What is the primary reason for seeking a substitute for the MRA112-BC?

A: The MRA112-BC is classified as obsolete. The MRAN112-BC, being in active production, provides continued availability for maintenance, repair, and replacement applications.

Q: Are there electrical rating differences between the MRA112-BC and MRAN112-BC?

A: The MRA112-BC is rated for 250mA AC at 125 VAC with SP12T configuration. Complete electrical specifications for the MRAN112-BC should be confirmed through the manufacturer's current datasheets to ensure full compatibility with your application requirements.

Q: What packaging options are available?

A: Both the MRA112-BC and MRAN112-BC are available in bulk packaging.

Q: Are there compliance considerations when substituting these parts?

A: The MRA112-BC is ROHS3 compliant and REACH unaffected. Compliance status for the MRAN112-BC should be verified through current manufacturer documentation to ensure regulatory requirements are met for your application.