C&K 7403SH3ZBE Toggle Switch 4PDT Equivalent & Substitute Parts

Part Overview

The C&K 7403SH3ZBE is a panel-mount toggle switch with 4PDT (four-pole double-throw) circuit configuration, rated for 0.4VA at 20V AC/DC. This switch is designed for On-Off-On applications requiring epoxy-sealed terminals and is currently in active production status. Equivalent and substitute parts are identified when applications require higher current ratings, expanded voltage specifications, or alternative sourcing while maintaining compatible mechanical and electrical interfaces.

Substiute Parts

7403SH3ZBE

C&KIn Stock: 8877403SH3ZBE 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 7403SH3ZBE are qualified based on the following criteria:

Mechanical Compatibility:

• Panel mount configuration with identical 6.35mm circular cutout diameter
• 1/4-40 bushing thread specification
• Solder lug termination style
• Standard round actuator type with comparable actuator length (10.16mm reference)

Electrical Compatibility:

• 4PDT circuit configuration maintained
• On-Off-On switch function preserved
• Operating temperature range: -30°C to 85°C
• Electrical life rating: 40,000 cycles minimum
• Epoxy-sealed terminals feature

Regulatory Compliance:

• ROHS3 compliance required
• EAR99 ECCN classification
• HTSUS code 8536.50.9065

The E-Switch 1004P3T1B1M1QEH and 1004P3T1B1M1QE models meet all mechanical and functional requirements while providing enhanced electrical ratings (5A at 120V AC / 28V DC) suitable for higher-power applications within the same form factor.

Parameter Comparison

Engineering Selection Recommendations

Primary Part - C&K 7403SH3ZBE: Select this part for applications requiring 0.4VA maximum current at 20V AC/DC with ROHS3 compliance and active production status. This part is suitable for low-power signal switching and control circuits.

Substitute Parts - E-Switch 1004P3T1B1M1QEH and 1004P3T1B1M1QE: These E-Switch models are direct mechanical and functional equivalents with enhanced electrical ratings. Both parts maintain ROHS3 compliance and active production status. The 1004P3T1B1M1QEH variant offers higher inventory availability (1991 pcs) compared to 1004P3T1B1M1QE (764 pcs). Select E-Switch substitutes when applications require higher current capacity (5A) or expanded voltage ratings (120V AC / 28V DC) while maintaining identical mechanical interfaces and panel cutout specifications.

Frequently Asked Questions (FAQ)

Q: Can the E-Switch 1004P3T1B1M1QEH be used as a direct replacement for the C&K 7403SH3ZBE?

A: Yes, the E-Switch 1004P3T1B1M1QEH is mechanically and functionally compatible. Both parts share identical panel mount specifications (6.35mm circular cutout, 1/4-40 bushing thread), 4PDT circuit configuration, On-Off-On function, solder lug termination, and operating temperature range. The E-Switch part provides higher electrical ratings (5A at 120V AC / 28V DC) within the same form factor.

Q: What is the difference between E-Switch 1004P3T1B1M1QEH and 1004P3T1B1M1QE?

A: Both E-Switch models are electrically and mechanically identical, with identical current ratings (5A AC/DC), voltage specifications (120V AC / 28V DC), and all other functional parameters. The primary difference is inventory availability and REACH compliance status. The 1004P3T1B1M1QEH is REACH Unaffected with 1991 pcs in stock, while 1004P3T1B1M1QE is REACH Unaffected with 764 pcs in stock.

Q: Are there any voltage or current derating considerations when substituting the C&K part with E-Switch equivalents?

A: No derating is required. The E-Switch substitutes are rated for higher electrical specifications (5A at 120V AC / 28V DC) compared to the C&K 7403SH3ZBE (0.4VA at 20V AC/DC). Applications designed for the lower-rated C&K part will operate within the safe operating envelope of the E-Switch substitutes.

Q: Do all parts maintain the same solder lug termination style?

A: Yes, all three parts (C&K 7403SH3ZBE and both E-Switch models) use solder lug termination, ensuring compatibility with existing PCB layouts and assembly processes.

Q: What is the panel cutout requirement for installation?

A: All parts require a circular panel cutout of 6.35mm diameter with a 1/4-40 bushing thread. No mechanical modifications are necessary when substituting between these parts.