C&K 7201MH3CKE Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The C&K 7201MH3CKE is a panel-mount toggle switch with DPDT (Double Pole Double Throw) configuration rated for 0.4VA at 20V AC/DC. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The switch features epoxy-sealed terminals, brass chrome-plated actuator, and 100,000 electrical cycle rating, suitable for applications requiring reliable switching in industrial and commercial environments.

Substiute Parts

7201MH3CKE

C&KIn Stock: 8127201MH3CKE Datasheet

Current PartRFQ

7201MH3CPE

C&KIn Stock: 10707201MH3CPE Datasheet

DirectRFQ

100DP1T2B3M2REH

E-SwitchIn Stock: 2129100DP1T2B3M2REH Datasheet

SimilarRFQ

A223M1CWCQ

ElectroswitchIn Stock: 767A223M1CWCQ Datasheet

SimilarRFQ

A223P31DCQ

ElectroswitchIn Stock: 861A223P31DCQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

• Circuit Configuration: DPDT (all substitutes must maintain Double Pole Double Throw functionality)
• Switch Function: On-On operation
• Mounting Type: Panel Mount with 1/4-40 bushing thread
• Termination Style: PC Pin
• Panel Cutout Dimensions: Circular 6.35mm diameter
• Operating Temperature Range: Minimum -30°C to 85°C coverage
• Electrical Life: Minimum 40,000 cycles (7201MH3CKE rated at 100,000 cycles)

Substitutes are grouped into two categories:

Direct Equivalent: 7201MH3CPE (C&K) - Identical electrical and mechanical specifications with active product status and improved RoHS compliance.

Functional Equivalents: 100DP1T2B3M2REH (E-Switch), A223M1CWCQ (Electroswitch), and A223P31DCQ (Electroswitch) - Maintain core DPDT functionality and panel-mount compatibility with variations in current/voltage ratings and actuator geometry.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred)

The C&K 7201MH3CPE is the primary substitute for the obsolete 7201MH3CKE. Both components share identical electrical ratings (0.4VA, 20V AC/DC), mechanical dimensions, and actuator specifications. The 7201MH3CPE maintains active product status with improved RoHS compliance and equivalent 100,000-cycle electrical life rating. This part provides seamless integration into existing designs without circuit modification.

For Higher Current/Voltage Applications

The Electroswitch A223M1CWCQ and A223P31DCQ are suitable when system requirements exceed the 0.4VA/20V specification. Both deliver 6A at 125V AC and 28V DC, supporting higher-power switching applications. The A223M1CWCQ features a standard round actuator (5.08mm length), while the A223P31DCQ provides a flatted actuator (11.38mm length) for applications requiring positive tactile feedback or specific panel interface requirements. Both maintain 1/4-40 bushing thread compatibility and PC pin termination.

For Mid-Range Current Applications

The E-Switch 100DP1T2B3M2REH offers 0.4VA/20V ratings matching the original specification with active product status and ROHS3 compliance. The slightly longer actuator (5.08mm versus 4.57mm) requires panel cutout verification. Electrical life rating of 40,000 cycles is lower than the original 100,000-cycle specification and should be evaluated against application duty cycle requirements.

Compliance Considerations

All substitute parts maintain active product status and RoHS compliance, addressing regulatory requirements for new designs. The original 7201MH3CKE is RoHS non-compliant; migration to any substitute improves environmental compliance posture.

Frequently Asked Questions (FAQ)

Q: Can the 7201MH3CPE directly replace the obsolete 7201MH3CKE without circuit modification?

A: Yes. The 7201MH3CPE is a direct equivalent with identical electrical ratings (0.4VA, 20V AC/DC), DPDT configuration, and mechanical dimensions including panel cutout (6.35mm circular) and bushing thread (1/4-40). No circuit redesign is required.

Q: What are the key differences between the direct equivalent and functional equivalents?

A: The 7201MH3CPE maintains identical electrical and mechanical specifications. The Electroswitch A223 series and E-Switch 100DP1T2B3M2REH provide higher current/voltage ratings (6A/125V AC for Electroswitch models) or equivalent ratings with different actuator lengths. Panel cutout dimensions for Electroswitch models are not specified and require verification before installation.

Q: Are the Electroswitch A223M1CWCQ and A223P31DCQ interchangeable with each other?

A: Both maintain identical electrical specifications (6A, 125V AC, 28V DC) and DPDT On-On functionality. The primary difference is actuator geometry: A223M1CWCQ features a standard round actuator (5.08mm), while A223P31DCQ provides a flatted actuator (11.38mm). Selection depends on panel interface requirements and operator preference.

Q: Does the E-Switch 100DP1T2B3M2REH meet the original electrical life specification?

A: The 100DP1T2B3M2REH is rated for 40,000 electrical cycles compared to the original 100,000-cycle specification. Applications with high switching frequency or extended operational life requirements should prioritize the 7201MH3CPE (100,000 cycles) or Electroswitch models (60,000 cycles).

Q: What packaging considerations apply to these substitutes?

A: The 7201MH3CPE is available in standard packaging. The E-Switch 100DP1T2B3M2REH and Electroswitch A223 series are supplied in bulk packaging. Verify minimum order quantities and lead times with component suppliers for production planning.

Q: Are all substitutes compatible with the 1/4-40 bushing thread specification?

A: Yes. All listed substitutes maintain 1/4-40 bushing thread compatibility, ensuring mechanical fit in existing panel cutouts designed for the original 7201MH3CKE.

Q: Which substitute is recommended for new designs requiring RoHS compliance?

A: All substitutes are RoHS compliant. The 7201MH3CPE is recommended for designs requiring direct electrical and mechanical equivalence. The Electroswitch A223 series or E-Switch 100DP1T2B3M2REH are suitable alternatives when higher current capacity or different actuator geometry is beneficial.