MRA112-CH Equivalent & Substitute Parts

Part Overview

The MRA112-CH is a rotary switch manufactured by NKK Switches, designed for applications requiring selectable positions from 2 to 12. This single-pole, multi-throw (SP12T) switch operates at 125 VAC with a 250mA current rating and features a non-shorting contact configuration. The product is classified as obsolete, making identification of compatible substitute parts essential for ongoing maintenance, repair, and new design implementations where this functionality is required.

Substiute Parts

MRA112-CH

NKK SwitchesIn Stock: 1045MRA112-CH Datasheet

Current PartRFQ

MRAN112-CH

NKK SwitchesIn Stock: 911MRAN112-CH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Circuit Configuration: SP12T topology (single pole, adjustable 2-12 positions)
• Electrical Ratings: 250mA AC current capacity and 125 VAC voltage rating
• Contact Timing: Non-shorting (BBM) operation
• Mounting Interface: Panel mount with through-hole termination using PC pins
• Actuator Specification: Knob-type actuator with 30° throw angle
• Contact Material & Finish: Copper base with silver plating

The MRAN112-CH qualifies as a manufacturer-recommended substitute because it maintains the core rotary switch functionality and electrical specifications required for direct replacement in applications originally designed for the MRA112-CH.

Parameter Comparison

Engineering Selection Recommendations

The MRAN112-CH is designated as the manufacturer-recommended substitute for the obsolete MRA112-CH. As an active product from NKK Switches, the MRAN112-CH provides continuity for applications requiring rotary switch functionality. The transition from obsolete to active product status ensures ongoing availability and manufacturing support.

Both parts maintain ROHS3 compliance and are manufactured by the same supplier, supporting standardized procurement and quality assurance processes. Selection of the MRAN112-CH for new designs or replacement applications eliminates the risk of supply discontinuation associated with the obsolete MRA112-CH.

Frequently Asked Questions (FAQ)

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

A: The MRAN112-CH is the manufacturer-recommended substitute. However, complete electrical and mechanical parameter alignment should be confirmed with the substitute part datasheet, as not all specifications are provided in the available data.

Q: What is the primary reason for substitution?

A: The MRA112-CH is classified as obsolete. The MRAN112-CH, as an active product, ensures continued availability and manufacturing support for rotary switch applications.

Q: Are there packaging differences between these parts?

A: Both parts are supplied in bulk packaging. No packaging format change is required for substitution.

Q: What compliance standards apply to both parts?

A: Both the MRA112-CH and MRAN112-CH are ROHS3 compliant, supporting environmental and regulatory requirements for electronic component use.

Q: Should I verify electrical specifications before substitution?

A: Confirmation of all electrical parameters (current rating, voltage rating, contact timing, and circuit configuration) with the MRAN112-CH datasheet is necessary to ensure compatibility with your specific application requirements.