LCW012S26SDC Equivalent & Substitute Parts

Part Overview

The LCW012S26SDC is a snap-action switch manufactured by C&K, featuring SPDT (Single Pole Double Throw) circuit configuration with momentary operation. This component is rated for 100mA at 125V AC and is designed for chassis mount applications with solder lug termination. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

LCW012S26SDC

C&KIn Stock: 1220LCW012S26SDC Datasheet

Current PartRFQ

LCS012S26WB22AC

C&KIn Stock: 1225LCS012S26WB22AC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LCW012S26SDC is determined by strict alignment of the following critical parameters:

Circuit configuration must remain SPDT with momentary (On-Mom) operation to maintain functional equivalence in control applications. Current and voltage ratings must match or exceed the original specification: 100mA AC at 125V AC minimum. Actuator type, mounting configuration, and ingress protection rating must be identical to ensure mechanical and environmental compatibility. Operating temperature range must encompass or exceed the original -40°C to 120°C specification. Electrical life rating must meet or exceed 10,000 cycles.

The LCS012S26WB22AC qualifies as a substitute based on matching circuit configuration (SPDT), switch function (On-Mom), current rating (100mA AC), voltage rating (125V AC), actuator type (Lever, Simulated Roller), mounting type (Chassis Mount), and ingress protection (IP67). The primary distinction is termination style: the substitute uses wire leads instead of solder lugs, requiring connector adaptation in the assembly process.

Parameter Comparison

Engineering Selection Recommendations

The LCS012S26WB22AC is functionally equivalent to the LCW012S26SDC for applications requiring SPDT momentary switching at 100mA and 125V AC. The substitute part carries active product status, ensuring ongoing availability and supply chain continuity compared to the obsolete main part number.

The primary design consideration is termination style: the LCS012S26WB22AC uses wire leads rather than solder lugs. This requires integration of appropriate connectors or terminal blocks in the circuit assembly. Both parts maintain RoHS compliance and identical ingress protection ratings for sealed enclosure applications.

The operating temperature range of the substitute part extends to 85°C maximum, compared to 120°C for the original. Applications requiring operation above 85°C must retain the original LCW012S26SDC or identify alternative components with extended temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can the LCS012S26WB22AC directly replace the LCW012S26SDC without circuit modification?

A: Functional substitution is possible. The termination style difference (wire leads versus solder lugs) requires connector or terminal block adaptation. No changes to electrical circuit operation are necessary if termination compatibility is addressed.

Q: Are there any compliance differences between the two parts?

A: Both parts are RoHS compliant. The main part carries RoHS3 certification while the substitute carries RoHS certification. Both meet environmental compliance requirements for their respective product statuses.

Q: What is the impact of the 35°C temperature range difference?

A: The substitute part operates to 85°C maximum versus 120°C for the original. Applications with continuous operation above 85°C must use the original part number or identify alternative components rated for extended temperature ranges.

Q: Does packaging format affect substitution eligibility?

A: The main part uses standard packaging while the substitute is supplied in trays. Packaging format does not affect electrical or mechanical compatibility; it impacts only inventory handling and component dispensing procedures.

Q: Are both parts suitable for IP67-rated enclosures?

A: Yes. Both the LCW012S26SDC and LCS012S26WB22AC maintain IP67 ingress protection rating, confirming suitability for dust-tight and waterproof applications.