C&K 7401P3HCKE Toggle Switch 4PDT Equivalent & Substitute Parts

Part Overview

The C&K 7401P3HCKE is a 4PDT panel mount toggle switch rated for 0.4VA at 20V AC/DC with a flat anti-rotation actuator. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 7000 series design remains functionally relevant, with active alternatives available from C&K and other manufacturers offering compatible electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	7401P3HCKE
Manufacturer	C&K
Series	7000
Product Status	Obsolete
Circuit Configuration	4PDT (Four Pole Double Throw)
Switch Function	On-On
Current Rating	0.4VA (AC/DC)
Voltage Rating - AC	20V
Voltage Rating - DC	20V
Mounting Type	Panel Mount
Panel Cutout Dimensions	Circular - 6.35mm Dia
Bushing Thread	1/4-40
Termination Style	PC Pin
Actuator Type	Flat Anti-Rotation
Actuator Length	11.43mm
Operating Temperature Range	-30°C to 85°C
Electrical Life	100,000 Cycles
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

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 Criteria:

Current rating must equal or exceed 0.4VA
Voltage rating (AC and DC) must equal or exceed 20V
Actuator material: Brass, Chrome Plated

Substitutes are grouped into two categories:

Direct Equivalent (Same Electrical Rating): C&K 7401P3HCPE and Grayhill 34A4P11B1M2RT and 34A4P11B3M2RT maintain the exact 0.4VA/20V electrical specification with identical mechanical interfaces.
Higher-Rated Substitutes (Enhanced Electrical Capability): E-Switch 1004P1T6B11M2QE, 1004P1T6B11M2QEH, Grayhill 34A4P11B1M2GT, 34A4P11B1M2QT, and 34A4P11B6M2GT provide 5A/120V-125V ratings, suitable for applications requiring higher electrical capacity while maintaining mechanical compatibility.
Enhanced-Capacity Substitute: Electroswitch A423S1HCQ offers 6A/125V rating with extended electrical life (60,000 cycles vs. 40,000 cycles in most alternatives).

Parameter Comparison

Part Number	Manufacturer	Status	Circuit	Current (A)	Voltage AC (V)	Voltage DC (V)	Actuator Type	Actuator Length (mm)	Electrical Life (Cycles)	RoHS
7401P3HCKE	C&K	Obsolete	4PDT	0.4VA	20	20	Flat Anti-Rotation	11.43	100,000	ROHS3
7401P3HCPE	C&K	Active	4PDT	0.4VA	20	20	Flat Anti-Rotation	11.43	100,000	RoHS
1004P1T6B11M2QE	E-Switch	Active	4PDT	5	120	28	Flat Anti-Rotation	12.30	40,000	ROHS3
1004P1T6B11M2QEH	E-Switch	Active	4PDT	5	120	28	Flat Anti-Rotation	12.30	40,000	ROHS3
34A4P11B1M2GT	Grayhill	Active	4PDT	5	125	28	Standard Round	10.41	40,000	ROHS3
34A4P11B1M2QT	Grayhill	Active	4PDT	5	125	28	Standard Round	10.41	40,000	RoHS
34A4P11B1M2RT	Grayhill	Active	4PDT	0.4VA	20	20	Standard Round	10.41	40,000	RoHS
34A4P11B3M2RT	Grayhill	Active	4PDT	0.4VA	20	20	Standard Round	12.19	40,000	ROHS3
34A4P11B6M2GT	Grayhill	Active	4PDT	5	125	28	Standard Round	9.90	40,000	ROHS3
A423S1HCQ	Electroswitch	Active	4PDT	6	125	28	Standard Round	10.41	60,000	RoHS

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Specification):

C&K 7401P3HCPE is the primary active equivalent. It maintains the exact 0.4VA/20V electrical rating and 100,000-cycle electrical life of the obsolete 7401P3HCKE. Both parts share identical mechanical interfaces and actuator geometry. The 7401P3HCPE is currently in active production status with 1,146 units in stock.

Grayhill 34A4P11B1M2RT and 34A4P11B3M2RT provide electrical equivalence at 0.4VA/20V with active status. These parts differ in actuator type (Standard Round vs. Flat Anti-Rotation) and actuator length. The 34A4P11B1M2RT uses a 10.41mm actuator; the 34A4P11B3M2RT uses a 12.19mm actuator. Both maintain the required panel cutout and bushing thread specifications. Electrical life is 40,000 cycles, lower than the original specification.

For Higher-Capacity Applications:

E-Switch 1004P1T6B11M2QE and 1004P1T6B11M2QEH support 5A/120V operation with flat anti-rotation actuators. These parts are suitable when the application requires higher current capacity than 0.4VA. Actuator length is 12.30mm. Electrical life is 40,000 cycles.

Grayhill 34A4P11B1M2GT, 34A4P11B1M2QT, and 34A4P11B6M2GT provide 5A/125V ratings with Standard Round actuators. Actuator lengths vary: 10.41mm (34A4P11B1M2GT and 34A4P11B1M2QT) and 9.90mm (34A4P11B6M2GT). All maintain mechanical compatibility with the original panel cutout and bushing specifications.

For Maximum Electrical Life:

Electroswitch A423S1HCQ offers 6A/125V with 60,000-cycle electrical life, exceeding the 40,000-cycle rating of most alternatives. This part is suitable for high-cycle applications requiring enhanced durability. Panel cutout dimensions are not specified in the provided data.

Compliance Considerations:

All substitute parts maintain RoHS compliance (either RoHS or ROHS3 status). The original 7401P3HCKE is ROHS3 Compliant and REACH Unaffected. C&K 7401P3HCPE is RoHS Compliant with REACH Affected status. All E-Switch and Grayhill alternatives are ROHS3 Compliant and REACH Unaffected. Electroswitch A423S1HCQ is RoHS Compliant with Vendor Undefined REACH status.

Frequently Asked Questions (FAQ)

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

A: Yes. Higher-rated substitutes are electrically compatible with applications designed for 0.4VA/20V operation. The substitute will operate safely at lower electrical stress. However, verify that the mechanical interface (actuator type, length, and panel cutout) is acceptable for your application.

Q: What is the difference between the C&K 7401P3HCKE and 7401P3HCPE?

A: Both parts are electrically and mechanically identical (0.4VA/20V, 4PDT, 100,000-cycle life, flat anti-rotation actuator). The primary difference is product status: 7401P3HCKE is obsolete, while 7401P3HCPE is active production. The 7401P3HCPE is the direct replacement.

Q: Why do Grayhill substitutes have lower electrical life (40,000 cycles vs. 100,000 cycles)?

A: Electrical life is a design characteristic of each manufacturer's switch architecture. Grayhill 34A series switches are rated for 40,000 cycles. If your application requires 100,000-cycle life, the C&K 7401P3HCPE is the appropriate choice.

Q: Can I use a Standard Round actuator substitute instead of the Flat Anti-Rotation original?

A: Mechanically, yes. Both actuator types fit the same 6.35mm panel cutout and 1/4-40 bushing thread. However, the Flat Anti-Rotation design prevents unintended rotation during installation and operation. If your application requires anti-rotation protection, use a flat anti-rotation actuator (C&K 7401P3HCPE or E-Switch 1004P1T6B11M2QE/1004P1T6B11M2QEH).

Q: What is the difference between E-Switch 1004P1T6B11M2QE and 1004P1T6B11M2QEH?

A: Both parts are electrically and mechanically identical (5A/120V, 4PDT, flat anti-rotation actuator, 12.30mm length). The designation difference (QE vs. QEH) reflects packaging or internal configuration variants. Both are active production parts with equivalent performance.

Q: Is the Electroswitch A423S1HCQ compatible with my panel cutout?

A: The provided data does not specify panel cutout dimensions for the A423S1HCQ. Verify compatibility with your panel design before selection. Contact the manufacturer for detailed mechanical drawings.

Q: Which substitute offers the best value for cost-sensitive applications?

A: This determination requires cost data not provided in the technical specifications. Consult your supplier for pricing and lead time information on active parts: C&K 7401P3HCPE, Grayhill 34A4P11B1M2RT, or E-Switch 1004P1T6B11M2QE.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message