LCW012T05SDC Equivalent & Substitute Parts

Part Overview

The LCW012T05SDC is a snap-action SPDT switch manufactured by C&K, designed for chassis mount applications with solder lug termination. This component operates at 125V AC with a 100mA current rating and provides IP67 ingress protection. The product is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

LCW012T05SDC

C&KIn Stock: 1215LCW012T05SDC Datasheet

Current PartRFQ

LCS05060T05QDC

C&KIn Stock: 1031LCS05060T05QDC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LCW012T05SDC is evaluated based on the following critical parameters:

Electrical Compatibility: Circuit configuration (SPDT), switch function (On-Momentary), and voltage rating (125V AC) must remain constant. Current rating substitution is permissible when the substitute part meets or exceeds the original 100mA specification.

Mechanical Compatibility: Actuator type (Lever, Straight) and mounting type (Chassis Mount) must match to ensure physical fit within existing assemblies.

Environmental & Compliance: Operating temperature range, ingress protection rating, and RoHS compliance status are evaluated for application suitability.

Termination Consideration: The original part uses solder lug termination. Substitute parts with different termination styles (such as quick connect) require circuit board or harness redesign and are noted as requiring engineering review.

Parameter Comparison

Engineering Selection Recommendations

The LCS05060T05QDC is electrically and functionally compatible with the LCW012T05SDC for SPDT switching applications at 125V AC. The substitute part provides a higher current rating (6A versus 100mA), which is acceptable for applications requiring the original 100mA specification. Both components maintain ROHS3 compliance and equivalent electrical life ratings.

The primary design consideration is termination style. The LCS05060T05QDC uses quick connect termination (0.110" tabs) rather than solder lugs. Applications currently using solder lug connections require connector or harness modification to accommodate the quick connect interface.

The LCS05060T05QDC operates across an extended temperature range (-40°C to 125°C versus -40°C to 120°C), providing additional thermal margin. The substitute part is currently in active production status, ensuring long-term availability.

Frequently Asked Questions (FAQ)

Q: Can the LCS05060T05QDC directly replace the LCW012T05SDC without circuit modifications?

A: Electrical and functional compatibility is confirmed. However, termination style differs: the substitute uses quick connect tabs instead of solder lugs. Direct PCB mounting requires connector adaptation or harness redesign.

Q: Is the higher current rating (6A) of the LCS05060T05QDC a concern for 100mA applications?

A: No. The substitute part is rated for higher current capacity, which does not affect performance in lower-current applications. The 100mA load remains well within the 6A specification.

Q: What is the impact of the extended operating temperature range in the substitute part?

A: The LCS05060T05QDC operates to 125°C versus 120°C for the original part. This provides additional thermal headroom and is not a limiting factor for substitution.

Q: Are both parts RoHS compliant?

A: Yes. Both the LCW012T05SDC and LCS05060T05QDC are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: What is the availability status of these parts?

A: The LCW012T05SDC is obsolete. The LCS05060T05QDC is in active production, ensuring continued supply for new designs and system support.