C&K 7401P3YCKES Toggle Switch 4PDT Equivalent & Substitute Parts

Part Overview

The C&K 7401P3YCKES is a 4PDT panel mount toggle switch rated for 0.4VA at 20V AC/DC with a flat anti-rotation actuator and satin chrome finish. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The 7000 series design remains functionally relevant, with active alternatives available from multiple manufacturers offering compatible electrical and mechanical specifications.

Substiute Parts

7401P3YCKES

C&KIn Stock: 7587401P3YCKES Datasheet

Current PartRFQ

7401P3YCPES

C&KIn Stock: 9137401P3YCPES Datasheet

DirectRFQ

1004P1T6B11M2QE

E-SwitchIn Stock: 8421004P1T6B11M2QE Datasheet

SimilarRFQ

1004P1T6B11M2QEH

E-SwitchIn Stock: 11801004P1T6B11M2QEH Datasheet

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34A4P11B1M2GT

Grayhill Inc.In Stock: 117234A4P11B1M2GT Datasheet

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34A4P11B1M2QT

Grayhill Inc.In Stock: 88534A4P11B1M2QT Datasheet

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34A4P11B1M2RT

Grayhill Inc.In Stock: 84834A4P11B1M2RT Datasheet

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34A4P11B3M2RT

Grayhill Inc.In Stock: 123334A4P11B3M2RT Datasheet

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34A4P11B6M2GT

Grayhill Inc.In Stock: 81034A4P11B6M2GT Datasheet

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A423S1HCQ

ElectroswitchIn Stock: 902A423S1HCQ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

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

Primary Compatibility Criteria:

• Circuit configuration: 4PDT
• Switch function: On-On
• Mounting type: Panel Mount
• Panel cutout dimensions: Circular 6.35mm Dia
• Bushing thread: 1/4-40
• Termination style: PC Pin
• Operating temperature range: -30°C to 85°C minimum

Electrical Compatibility Tiers:

Tier 1 - Direct Electrical Match (0.4VA @ 20V): Parts with identical current and voltage ratings. These are direct functional replacements with no derating required.

Tier 2 - Higher Electrical Rating (5A @ 120V/125V or 6A @ 125V): Parts with elevated current and voltage specifications. These provide enhanced electrical capacity and are suitable for applications where the original 0.4VA @ 20V specification is a design constraint rather than a requirement. Derating applies; the higher-rated switch operates well within its electrical envelope in the original application.

Mechanical Compatibility Considerations:

• Actuator type variations (flat anti-rotation vs. standard round) are acceptable provided panel cutout and bushing thread specifications remain constant
• Actuator length variations within the panel mount envelope are acceptable
• Electrical life differences (40,000 vs. 100,000 cycles) reflect design differences but do not preclude substitution in applications not requiring extended cycle life

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Specification):

7401P3YCPES (C&K) is the active production equivalent of the obsolete 7401P3YCKES. Both parts share identical electrical ratings (0.4VA @ 20V AC/DC), circuit configuration (4PDT), mechanical mounting (panel mount, 6.35mm cutout, 1/4-40 bushing), and termination (PC pin). The primary difference is product status (active vs. obsolete) and terminal sealing (epoxy sealed vs. satin chrome actuator). This part is the preferred direct replacement for applications requiring no design modification.

Electrical Upgrade Substitutes (Higher Current/Voltage Rating):

E-Switch 1004P1T6B11M2QE and 1004P1T6B11M2QEH provide 5A @ 120V AC capability with identical mechanical mounting specifications. These parts are suitable for applications where the original 0.4VA @ 20V specification represents a design margin rather than a hard requirement. Both are ROHS3 compliant and active production parts. The 1004P1T6B11M2QEH variant offers higher inventory availability (1114 pcs vs. 768 pcs).

Grayhill Inc. 34A4P11B1M2GT, 34A4P11B1M2QT, and 34A4P11B6M2GT provide 5A @ 125V AC capability with identical mechanical mounting. These parts feature standard round actuators instead of flat anti-rotation types. Actuator length variations (9.90mm to 10.41mm) remain within typical panel mount envelopes. All three are active production parts with ROHS3 or RoHS compliance.

Electroswitch A423S1HCQ provides the highest electrical rating (6A @ 125V AC) with 60,000 cycle electrical life. Panel cutout dimensions are not specified in the provided data; verification against mechanical drawings is required before selection.

Electrical Match with Mechanical Variation:

Grayhill Inc. 34A4P11B1M2RT and 34A4P11B3M2RT maintain the original 0.4VA @ 20V electrical specification with standard round actuators and reduced electrical life (40,000 cycles). These parts are suitable for direct functional replacement in applications where actuator style is not a design constraint. Actuator length differences (10.41mm and 12.19mm) must be verified against panel cutout clearance requirements.

Compliance Considerations:

All substitute parts listed maintain RoHS compliance (either RoHS or ROHS3 status). The original 7401P3YCKES is ROHS3 compliant; most active substitutes maintain this certification. REACH status varies across manufacturers; verify against procurement requirements if REACH compliance is a specification requirement.

Frequently Asked Questions (FAQ)

Q: Can I use a higher-rated switch (5A @ 120V) in place of the 0.4VA @ 20V original?

A: Yes. A higher-rated switch operates well within its electrical envelope when used in a lower-power application. The 5A @ 120V E-Switch and Grayhill parts are electrically suitable for any circuit designed for 0.4VA @ 20V. Mechanical compatibility (panel cutout, bushing thread, termination style) must also be verified.

Q: What is the difference between flat anti-rotation and standard round actuators?

A: Flat anti-rotation actuators prevent unintended rotation during installation and operation. Standard round actuators offer simpler geometry. Both types are mechanically compatible with the 6.35mm circular panel cutout and 1/4-40 bushing thread. Selection depends on application requirements for actuator stability.

Q: Does electrical life (40,000 vs. 100,000 cycles) affect substitution suitability?

A: Electrical life reflects design differences but does not preclude substitution. A part with 40,000 cycle rating is suitable for applications not requiring extended cycle life. If the original design specified 100,000 cycles as a requirement, verify that the substitute part's 40,000 cycle rating meets the actual application duty cycle.

Q: Are all substitute parts panel mount compatible?

A: Yes. All listed substitute parts share the same mechanical mounting specification: circular 6.35mm panel cutout, 1/4-40 bushing thread, and PC pin termination. Actuator length variations (9.90mm to 12.30mm) are within typical panel mount envelopes but should be verified against specific panel thickness and clearance requirements.

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

A: ROHS3 (Directive 2011/65/EU as amended) is the current European Union restriction on hazardous substances standard. RoHS refers to earlier versions of the directive. Both certifications indicate compliance with hazardous substance restrictions. ROHS3 is the more current standard; parts with ROHS3 certification are preferred for new designs.

Q: Can I substitute the C&K 7401P3YCPES for the obsolete 7401P3YCKES without any design changes?

A: Yes. The 7401P3YCPES is the active production equivalent with identical electrical and mechanical specifications. The only functional difference is terminal sealing (epoxy sealed vs. satin chrome actuator finish). No design modification is required.

Q: Which substitute part has the best availability?

A: Grayhill Inc. 34A4P11B3M2RT has the highest inventory (1129 pcs), followed by E-Switch 1004P1T6B11M2QEH (1114 pcs). Both are active production parts with immediate availability.