C&K 7203SH3CLE Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The C&K 7203SH3CLE is a panel-mount toggle switch with DPDT (Double Pole Double Throw) configuration rated for 5A at 120V AC and 28V DC. This part operates in an On-Off-On switch function with a standard round actuator and PC pin termination. The 7203SH3CLE is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system maintenance and new design implementations where this component is specified.

Substiute Parts

7203SH3CLE

C&KIn Stock: 10167203SH3CLE Datasheet

Current PartRFQ

7203SH3CRE

C&KIn Stock: 9927203SH3CRE Datasheet

DirectRFQ

100DP3T1B1M2REH

E-SwitchIn Stock: 1485100DP3T1B1M2REH Datasheet

SimilarRFQ

A221S1YCQ

ElectroswitchIn Stock: 1137A221S1YCQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7203SH3CLE is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be DPDT
• Switch function must be On-Off-On
• Mounting type must be Panel Mount
• Termination style must be PC Pin
• Bushing thread must be 1/4-40
• Actuator type must be Standard Round
• Panel cutout dimensions must be Circular - 6.35mm Dia

Electrical Performance Criteria:

• Current rating must meet or exceed 5A (AC/DC)
• Voltage rating - AC must meet or exceed 120V
• Voltage rating - DC must meet or exceed 28V

Environmental Criteria:

• Operating temperature range must encompass -30°C to 85°C
• Electrical life must meet or exceed 40,000 cycles

Substitute parts are classified into two categories:

Direct Manufacturer Substitute: Parts from the same manufacturer (C&K) that maintain identical mechanical and electrical specifications with improved product status or compliance.

Similar Manufacturer Substitutes: Parts from alternative manufacturers that satisfy all primary compatibility criteria and electrical performance requirements, enabling functional equivalence in the application.

Parameter Comparison

Engineering Selection Recommendations

C&K 7203SH3CRE (Direct Manufacturer Substitute): The 7203SH3CRE is the preferred direct substitute. It maintains identical mechanical and electrical specifications to the 7203SH3CLE while offering active product status and RoHS compliance. This part is sourced from the original manufacturer and represents the most direct replacement path for obsolete inventory.

E-Switch 100DP3T1B1M2REH (Similar Manufacturer Substitute): The 100DP3T1B1M2REH satisfies all mechanical compatibility requirements and maintains the required DPDT On-Off-On configuration. However, this part has reduced electrical ratings (0.4VA at 20V AC/DC), making it unsuitable for applications requiring the full 5A at 120V AC specification of the original part. This substitute is applicable only in applications with lower power requirements.

Electroswitch A221S1YCQ (Similar Manufacturer Substitute): The A221S1YCQ meets or exceeds all electrical and mechanical requirements, with 6A current rating at 125V AC and extended electrical life of 60,000 cycles. The panel cutout dimensions are not specified for this part, requiring verification of mechanical fit in existing panel installations. This part offers RoHS compliance and is suitable for new designs and applications where panel cutout compatibility can be confirmed.

Frequently Asked Questions (FAQ)

Q: Can the E-Switch 100DP3T1B1M2REH replace the C&K 7203SH3CLE in all applications?

A: No. While the 100DP3T1B1M2REH maintains mechanical compatibility and DPDT On-Off-On configuration, its electrical ratings (0.4VA at 20V AC/DC) are significantly lower than the original part (5A at 120V AC). This substitute is only applicable in low-power applications operating below 20V.

Q: What is the primary advantage of the C&K 7203SH3CRE over the original 7203SH3CLE?

A: The 7203SH3CRE is an active product with RoHS compliance, whereas the 7203SH3CLE is obsolete and RoHS non-compliant. All mechanical and electrical specifications remain identical, making the 7203SH3CRE the direct replacement for ongoing supply and new installations.

Q: Is the Electroswitch A221S1YCQ suitable for panel mount applications?

A: The A221S1YCQ is panel-mount compatible with 1/4-40 bushing thread and standard round actuator. However, panel cutout dimensions are not specified for this part. Verification of the 6.35mm circular cutout compatibility is required before installation in existing panel designs.

Q: What are the key mechanical parameters that must match for substitution?

A: Critical mechanical parameters include mounting type (Panel Mount), actuator type (Standard Round), termination style (PC Pin), bushing thread (1/4-40), and panel cutout dimensions (Circular - 6.35mm Dia). Deviations in these parameters may prevent physical installation or electrical connection.

Q: Can I use the A221S1YCQ in applications requiring 120V AC operation?

A: Yes. The A221S1YCQ is rated for 125V AC, which exceeds the 120V AC requirement of the original part. It is electrically suitable for this voltage level.

Q: What is the difference in actuator length between the original part and the substitutes?

A: The 7203SH3CLE and 7203SH3CRE have 10.16mm actuator length. The E-Switch 100DP3T1B1M2REH and Electroswitch A221S1YCQ both have 10.41mm actuator length. This 0.25mm difference may affect panel clearance in space-constrained installations.