C&K 7403SDZQE Toggle Switch 4PDT 5A 120V Equivalent & Substitute Parts

Part Overview

The C&K 7403SDZQE is a panel-mount toggle switch with 4PDT (four-pole double-throw) circuit configuration, rated for 5A at 120V AC and 28V DC. This switch is designed for On-Off-On applications with solder lug termination and epoxy-sealed terminals. The part is currently active in production with 691 units in stock. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical mounting specifications, and functional circuit configuration to ensure direct interchangeability in applications requiring 4PDT toggle switch functionality.

Substiute Parts

7403SDZQE

C&KIn Stock: 7377403SDZQE Datasheet

Current PartRFQ

1004P3T1B1M1QE

E-SwitchIn Stock: 7841004P3T1B1M1QE Datasheet

SimilarRFQ

1004P3T1B1M1QEH

E-SwitchIn Stock: 20401004P3T1B1M1QEH Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7403SDZQE are qualified based on the following critical parameters that determine functional interchangeability:

• Circuit Configuration: Must be 4PDT to maintain the same switching capability
• Switch Function: Must be On-Off-On to match application requirements
• Current Rating: Must be 5A (AC/DC) to handle the same load conditions
• Voltage Ratings: Must support 120V AC and 28V DC minimum
• Mounting Type: Must be panel mount with identical panel cutout dimensions (6.35mm circular) and bushing thread (1/4-40)
• Termination Style: Must be solder lug for PCB integration compatibility
• Operating Temperature: Must support -30°C ~ 85°C range
• Electrical Life: Must meet or exceed 40,000 cycles

The E-Switch 1004P3T1B1M1QE and 1004P3T1B1M1QEH meet all critical substitution criteria and are qualified as direct equivalents.

Parameter Comparison

Engineering Selection Recommendations

Both E-Switch substitute parts (1004P3T1B1M1QE and 1004P3T1B1M1QEH) are qualified as direct equivalents to the C&K 7403SDZQE based on matching electrical specifications, mechanical compatibility, and compliance certifications.

Selection Criteria:

• All three parts are ROHS3 compliant and carry EAR99 ECCN classification
• All parts maintain identical circuit configuration, current rating, voltage ratings, and operating temperature range
• Panel mounting specifications are identical across all three parts
• The E-Switch 1004P3T1B1M1QEH offers higher inventory availability (1991 units) compared to the C&K 7403SDZQE (691 units)
• Actuator length differs slightly (10.41mm for E-Switch versus 12.45mm for C&K); verify panel clearance requirements for your specific application

Frequently Asked Questions (FAQ)

Q: Can the E-Switch 1004P3T1B1M1QE and 1004P3T1B1M1QEH be used interchangeably with the C&K 7403SDZQE?

A: Yes. Both E-Switch parts meet all critical electrical and mechanical parameters required for direct substitution, including 4PDT circuit configuration, 5A current rating, 120V AC / 28V DC voltage ratings, and identical panel mount specifications with 6.35mm circular cutout and 1/4-40 bushing thread.

Q: What is the difference between the two E-Switch substitute parts?

A: The 1004P3T1B1M1QE and 1004P3T1B1M1QEH are functionally identical in all electrical and mechanical specifications. The primary difference is inventory availability, with the 1004P3T1B1M1QEH offering 1991 units in stock versus 764 units for the 1004P3T1B1M1QE.

Q: Are there any mechanical differences I should consider?

A: The actuator length differs between manufacturers: C&K 7403SDZQE has a 12.45mm actuator length, while both E-Switch parts have 10.41mm actuator length. Verify that your panel design accommodates this variation in actuator protrusion.

Q: Do all parts meet the same compliance standards?

A: All three parts are ROHS3 compliant with EAR99 ECCN classification. The C&K 7403SDZQE is REACH Affected, while the E-Switch parts are REACH Unaffected. Verify REACH compliance requirements for your specific application and end-use region.

Q: What is the electrical life rating for these switches?

A: All three parts are rated for 40,000 electrical cycles, ensuring equivalent operational durability across the substitution group.