C&K 7401MD9V4LE Toggle Switch 4PDT Equivalent & Substitute Parts

Part Overview

The C&K 7401MD9V4LE is a 4PDT toggle switch rated for 5A at 120V AC / 28V DC with through-hole mounting and PC pin termination. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The switch features epoxy sealed terminals and operates across a temperature range of -30°C to 85°C with an electrical life of 100,000 cycles.

Substiute Parts

7401MD9V4LE

C&KIn Stock: 12107401MD9V4LE Datasheet

Current PartRFQ

7401MD9V4RE

C&KIn Stock: 9397401MD9V4RE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7401MD9V4LE is determined by strict equivalence across the following critical parameters:

• Circuit configuration: 4PDT
• Switch function: On-On
• Current rating: 5A (AC/DC)
• Voltage ratings: 120V AC / 28V DC
• Mounting type: Through Hole
• Termination style: PC Pin
• Actuator type and length: Standard Round, 6.86mm
• Operating temperature range: -30°C to 85°C
• Electrical life: 100,000 Cycles
• Base product number: 7401MD

Parts meeting all these criteria are classified as direct functional equivalents and may be substituted without circuit redesign or mechanical modification.

Parameter Comparison

Engineering Selection Recommendations

The C&K 7401MD9V4RE serves as the active production equivalent to the obsolete 7401MD9V4LE. Both parts maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product lifecycle status: the 7401MD9V4LE is obsolete while the 7401MD9V4RE is actively manufactured.

For new designs and production continuity, the 7401MD9V4RE is the appropriate selection. This part carries RoHS compliance certification and is subject to REACH regulations, reflecting current regulatory requirements for electronic components. The 7401MD9V4LE, classified as REACH Unaffected, represents legacy inventory that may be suitable for repair or maintenance applications where existing stock is available.

Both parts are suitable for applications requiring 4PDT switching at 5A / 120V AC or 28V DC with through-hole mounting and PC pin termination.

Frequently Asked Questions (FAQ)

Q: Can the 7401MD9V4RE directly replace the 7401MD9V4LE in existing designs?

A: Yes. The 7401MD9V4RE is a direct functional equivalent with identical electrical ratings, circuit configuration, mounting type, and termination style. No circuit modification or mechanical redesign is required.

Q: What is the difference between ROHS3 Compliant and RoHS Compliant?

A: ROHS3 refers to the third iteration of the Restriction of Hazardous Substances directive. Both designations indicate compliance with RoHS requirements; the terminology reflects different regulatory documentation versions.

Q: Are there any compatibility concerns with REACH status differences?

A: The 7401MD9V4LE is REACH Unaffected, while the 7401MD9V4RE is REACH Affected. For applications subject to REACH regulations, the 7401MD9V4RE is the appropriate choice. For applications not subject to REACH requirements, both parts are functionally equivalent.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on matching circuit configuration (4PDT), switch function (On-On), current rating (5A AC/DC), voltage ratings (120V AC / 28V DC), mounting type (Through Hole), termination style (PC Pin), actuator specifications (Standard Round, 6.86mm), operating temperature range (-30°C to 85°C), and electrical life (100,000 Cycles).

Q: Is the 7401MD9V4LE still available for purchase?

A: The 7401MD9V4LE is classified as obsolete. Existing inventory may be available through authorized distributors, but new production has ceased. The 7401MD9V4RE is the active production alternative.