MRA112-CA Equivalent & Substitute Parts

Part Overview

The MRA112-CA is a rotary switch manufactured by NKK Switches, designed for applications requiring selectable positions from 2 to 12. This single-pole, single-deck switch operates at 125 VAC with a 250mA current rating and features a non-shorting (BBM) contact configuration. The component is panel-mounted with through-hole termination and a knob actuator.

The MRA112-CA is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

MRA112-CA

NKK SwitchesIn Stock: 878MRA112-CA Datasheet

Current PartRFQ

MRAN112-CA

NKK SwitchesIn Stock: 739MRAN112-CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The MRAN112-CA is identified as a manufacturer-recommended substitute for the MRA112-CA. Substitution eligibility is determined by the following critical parameters:

• Circuit Configuration: Both parts maintain SP12T (single-pole, 12-throw) capability
• Current Rating: Both rated at 250mA AC
• Voltage Rating: Both rated at 125 VAC
• Contact Timing: Both feature non-shorting (BBM) contact operation
• Mounting Type: Both are panel-mounted with through-hole termination
• Termination Style: Both use PC Pin termination
• Contact Material and Finish: Both utilize copper contacts with silver finish

The MRAN112-CA represents an active product status alternative, providing continued availability for applications previously designed around the obsolete MRA112-CA.

Parameter Comparison

Engineering Selection Recommendations

The MRAN112-CA is the manufacturer-recommended substitute for the obsolete MRA112-CA. Selection of the MRAN112-CA is supported by:

• Active Product Status: The MRAN112-CA maintains active production status, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: The MRA112-CA is ROHS3 compliant; compliance status for the MRAN112-CA is not specified in available documentation
• Manufacturer Designation: NKK Switches explicitly identifies the MRAN112-CA as the recommended replacement

For applications requiring continued operation of systems designed around the MRA112-CA, the MRAN112-CA provides functional equivalence based on the critical electrical and mechanical parameters provided.

Frequently Asked Questions (FAQ)

Q: What makes the MRAN112-CA a suitable substitute for the MRA112-CA?

A: Both components are manufactured by NKK Switches and share identical electrical ratings (250mA at 125 VAC), circuit configuration (SP12T), contact timing (non-shorting BBM), and mechanical mounting specifications (panel mount, through-hole, PC pin termination). The MRAN112-CA is the manufacturer-recommended replacement.

Q: Why is the MRA112-CA classified as obsolete?

A: The MRA112-CA has been discontinued by the manufacturer. The MRAN112-CA has replaced it in the active product line.

Q: Are there packaging differences between these parts?

A: The MRA112-CA is specified with dash packaging, while the MRAN112-CA is supplied in bulk packaging. Packaging differences do not affect electrical or mechanical compatibility.

Q: Can the MRAN112-CA be used as a direct replacement in existing designs?

A: Yes, based on the provided specifications. Both parts share the same electrical ratings, circuit configuration, and mounting characteristics. Consult detailed datasheets for any application-specific requirements not covered in this reference.

Q: What compliance certifications apply to these parts?

A: The MRA112-CA is ROHS3 compliant. Compliance status for the MRAN112-CA is not specified in the provided documentation.