MRA112 Equivalent & Substitute Parts

Part Overview

The MRA112 is a rotary switch manufactured by NKK Switches, configured as a 2-12 position, single-pole switch with a 250mA AC rating at 125VAC. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The MRA112's adjustable index stops and non-shorting contact timing make it suitable for applications requiring variable position selection with controlled electrical switching.

Substiute Parts

MRA112

NKK SwitchesIn Stock: 2011MRA112 Datasheet

Current PartRFQ

MRAN112

NKK SwitchesIn Stock: 892MRAN112 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Electrical Specifications: Current rating (250mA AC), voltage rating (125VAC), and circuit configuration (SP12T) must remain constant
• Mechanical Interface: Panel mount through-hole mounting with PC pin termination must be maintained
• Contact Characteristics: Non-shorting contact timing and copper-silver contact material define the switching behavior
• Position Range: Adjustable index stops allowing 2-12 position configuration
• Regulatory Compliance: ROHS3 compliance and EAR99 classification

The MRAN112 qualifies as a manufacturer-recommended substitute based on alignment with these core parameters within the NKK Switches product family.

Parameter Comparison

Engineering Selection Recommendations

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

• Product Status: The MRAN112 maintains active production status, ensuring availability and supply chain continuity
• Regulatory Alignment: Both components maintain ROHS3 compliance and EAR99 classification, satisfying regulatory requirements
• Manufacturer Continuity: Both components originate from NKK Switches, ensuring design consistency within the product family
• Base Product Relationship: The MRAN112 shares the MRAN1 base product number, indicating direct product line succession

Frequently Asked Questions (FAQ)

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

A: The MRAN112 is the manufacturer-recommended substitute. However, detailed electrical and mechanical specifications for the MRAN112 should be cross-referenced with application requirements, particularly regarding position count, current rating, and voltage rating, as these parameters are not fully specified in available documentation.

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

A: The MRA112 is classified as obsolete. The MRAN112 provides continuity within the NKK Switches product portfolio and maintains active production status.

Q: Are there packaging differences between the MRA112 and MRAN112?

A: Yes. The MRA112 is supplied in box packaging, while the MRAN112 is supplied in bulk packaging. This distinction may affect procurement processes and inventory management but does not impact functional compatibility.

Q: Do both components meet the same regulatory standards?

A: Both the MRA112 and MRAN112 are ROHS3 compliant and classified as EAR99 for export control purposes, ensuring equivalent regulatory standing.

Q: What parameters must remain constant when substituting the MRA112?

A: Critical parameters include current rating (250mA AC), voltage rating (125VAC), circuit configuration (SP12T), mounting type (panel mount through-hole), termination style (PC pin), and contact timing (non-shorting). These specifications define functional equivalence in rotary switch applications.