C&K 7103SH3CLE Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The C&K 7103SH3CLE is a panel-mount toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 5A at 120V AC and 28V DC. This part operates in On-Off-On switch function with a standard round actuator and PC pin termination. The 7103SH3CLE is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations.

Substiute Parts

7103SH3CLE

C&KIn Stock: 7427103SH3CLE Datasheet

Current PartRFQ

7103SH3CRE

C&KIn Stock: 9587103SH3CRE Datasheet

DirectRFQ

A121S1DCQ

ElectroswitchIn Stock: 1105A121S1DCQ Datasheet

SimilarRFQ

M2013SS1W03

NKK SwitchesIn Stock: 1009M2013SS1W03 Datasheet

SimilarRFQ

MTA106EPC

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1323MTA106EPC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7103SH3CLE are grouped based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Circuit configuration: SPDT
• Mounting type: Panel Mount
• Termination style: PC Pin
• Bushing thread: 1/4-40
• Actuator type: Standard Round
• Panel cutout dimensions: Circular configuration within acceptable tolerance
• Operating temperature range: Minimum -30°C capability
• Electrical life: Minimum 40,000 cycles

Acceptable Parameter Variations:

• Current rating: Equal to or greater than 5A
• Voltage rating (AC): Equal to or greater than 120V
• Voltage rating (DC): Equal to or greater than 28V
• Actuator length: Within ±0.5mm of 10.16mm
• Switch function: On-Off-On or On-On configurations

The substitute parts listed maintain these core parameters while offering improvements in product status, compliance certifications, or electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Recommended for Obsolete Part Replacement):

The C&K 7103SH3CRE is the direct equivalent to the 7103SH3CLE. Both parts share identical electrical ratings, mechanical dimensions, and switch function. The 7103SH3CRE is currently in active production status with 942 units in stock. This part achieves RoHS compliance and REACH affected status, making it suitable for applications requiring modern regulatory compliance. Selection of the 7103SH3CRE eliminates obsolescence risk while maintaining full functional compatibility.

Alternative Substitutes (Cross-Manufacturer Options):

The Electroswitch A121S1DCQ, NKK Switches M2013SS1W03, and TE Connectivity MTA106EPC provide functional substitution with enhanced electrical performance. All three parts maintain SPDT circuit configuration, panel mount installation, PC pin termination, and 1/4-40 bushing thread specifications.

The A121S1DCQ and MTA106EPC offer increased electrical life (60,000 cycles versus 40,000 cycles) and higher current ratings (6A AC). The A121S1DCQ operates at -30°C to 90°C, providing extended low-temperature capability. The MTA106EPC operates at -20°C to 80°C, which is narrower than the original specification.

The M2013SS1W03 is classified as obsolete and carries reduced electrical life (25,000 cycles), making it less suitable for new designs despite RoHS3 compliance.

For applications requiring RoHS compliance, the 7103SH3CRE, A121S1DCQ, and M2013SS1W03 are compliant options. For applications with no RoHS requirement, the MTA106EPC provides active production status and extended electrical life.

Frequently Asked Questions (FAQ)

Q: Can the 7103SH3CRE directly replace the 7103SH3CLE without any modifications?

A: Yes. The 7103SH3CRE is the direct equivalent with identical electrical ratings (5A, 120V AC, 28V DC), switch function (On-Off-On), mechanical dimensions, and termination style. No circuit modifications or panel cutout adjustments are required.

Q: What are the key differences between the main part and cross-manufacturer substitutes?

A: Cross-manufacturer substitutes maintain core compatibility parameters (SPDT circuit, panel mount, PC pin termination, 1/4-40 bushing) but vary in current ratings, electrical life, and operating temperature ranges. The A121S1DCQ and MTA106EPC provide 6A current rating and 60,000-cycle electrical life compared to the original 5A and 40,000 cycles. Actuator length variations range from 10.16mm to 10.50mm, which may affect panel aesthetics but not electrical function.

Q: Are there compliance considerations when selecting a substitute?

A: Yes. The original 7103SH3CLE is RoHS non-compliant. The 7103SH3CRE, A121S1DCQ, and M2013SS1W03 are RoHS compliant, suitable for applications requiring regulatory compliance. The MTA106EPC remains RoHS non-compliant. REACH status varies by manufacturer; the 7103SH3CRE and MTA106EPC are REACH affected, while the 7103SH3CLE and M2013SS1W03 are REACH unaffected.

Q: What is the impact of panel cutout dimension variations?

A: The main part specifies a 6.35mm circular cutout. The M2013SS1W03 requires 6.50mm, and the MTA106EPC requires 6.40mm. These variations are within typical manufacturing tolerances for panel cutout drilling. Verify panel hole dimensions before installation to ensure proper fit and sealing.

Q: Which substitute offers the best long-term reliability?

A: The A121S1DCQ and MTA106EPC both provide 60,000-cycle electrical life, compared to 40,000 cycles for the original part. The A121S1DCQ extends the operating temperature range to -30°C to 90°C. Selection depends on application requirements; for standard industrial applications, either option provides improved cycle life over the original specification.

Q: Is the M2013SS1W03 suitable for new designs?

A: The M2013SS1W03 is classified as obsolete with reduced electrical life (25,000 cycles). While RoHS3 compliant, it is not recommended for new designs. The active-status alternatives (7103SH3CRE, A121S1DCQ, MTA106EPC) provide better long-term availability and performance characteristics.