MRA403-CF Equivalent & Substitute Parts

Part Overview

The MRA403-CF is a rotary switch manufactured by NKK Switches, designed for panel-mount applications requiring multi-position switching capability. This component features a 4-pole, 3-throw (4P3T) configuration with a 250mA AC rating at 125VAC, suitable for low-voltage control circuits. The product is classified as obsolete, making identification of compatible substitute parts essential for ongoing maintenance, repair, and system support where original components are no longer readily available through standard distribution channels.

Substiute Parts

MRA403-CF

NKK SwitchesIn Stock: 845MRA403-CF Datasheet

Current PartRFQ

MRAN403-CF

NKK SwitchesIn Stock: 1012MRAN403-CF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MRA403-CF is determined by strict alignment with the following electrical and mechanical parameters:

Critical Substitution Criteria:

• Circuit configuration: 4P3T (4 poles, 3 throws)
• Current rating: 250mA AC minimum
• Voltage rating: 125V AC minimum
• Contact timing: Non-shorting (BBM) operation
• Mounting interface: Panel mount with through-hole termination
• Termination style: PC pin compatibility
• Actuator type: Knob-operated
• Angle of throw: 30° rotation

The MRAN403-CF qualifies as a direct substitute based on matching electrical specifications (4P3T configuration, 250mA AC, 125V AC rating) and identical mechanical mounting requirements (panel mount, through-hole, PC pin termination). The MRAN403-CF maintains active product status, ensuring continued availability and support.

Parameter Comparison

Engineering Selection Recommendations

The MRAN403-CF is the designated manufacturer substitute for the obsolete MRA403-CF. Selection of the MRAN403-CF is supported by:

• Product Status Alignment: The MRAN403-CF maintains active product status, ensuring long-term availability and manufacturing continuity where the original MRA403-CF is no longer produced.
• Compliance Certification: Both components maintain ROHS3 compliance status, satisfying regulatory requirements for electronic component procurement.
• Manufacturer Continuity: Both parts are manufactured by NKK Switches, ensuring consistent design standards and quality control protocols.
• Electrical Equivalence: The MRAN403-CF is identified as the manufacturer-recommended substitute, indicating validated electrical and functional compatibility.

Frequently Asked Questions (FAQ)

Q: Why is the MRA403-CF classified as obsolete? A: The MRA403-CF has reached end-of-life status in the manufacturer's product portfolio. NKK Switches has transitioned production to the MRAN403-CF, which serves the same functional requirements with active manufacturing support.

Q: What are the critical parameters for substitution compatibility? A: Substitutes must match the 4P3T circuit configuration, 250mA AC current rating, 125V AC voltage rating, non-shorting contact timing, panel-mount through-hole termination, and PC pin connection style. Deviation from any of these parameters may result in functional incompatibility.

Q: Is the MRAN403-CF a direct replacement for the MRA403-CF? A: The MRAN403-CF is the manufacturer-designated substitute. It is designed to provide equivalent electrical performance and mechanical compatibility in applications previously using the MRA403-CF.

Q: Are there packaging differences between the main part and substitute? A: Both the MRA403-CF and MRAN403-CF are supplied in bulk packaging, eliminating packaging-related compatibility concerns for component integration.

Q: What compliance certifications apply to the MRAN403-CF? A: The MRAN403-CF maintains ROHS3 compliance status, consistent with the original MRA403-CF, ensuring regulatory alignment for procurement and deployment.