LCW012T07SDC Equivalent & Substitute Parts

Part Overview

The LCW012T07SDC is a snap-action SPDT switch manufactured by C&K, designed for chassis mount applications with solder lug termination. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The switch operates at 125V AC with a 100mA current rating and provides IP67 ingress protection for dust and moisture resistance.

Substiute Parts

LCW012T07SDC

C&KIn Stock: 1149LCW012T07SDC Datasheet

Current PartRFQ

LCS052T07WA20CC

C&KIn Stock: 1136LCS052T07WA20CC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LCW012T07SDC is based on the following critical parameters that must remain consistent or be compatible with the original application:

Primary Compatibility Criteria:

• Circuit configuration: SPDT (Single Pole Double Throw)
• Switch function: On-Momentary operation
• Voltage rating: 125V AC minimum
• Mounting type: Chassis Mount
• Ingress protection: IP67 or equivalent
• Operating temperature range: Must encompass or exceed -40°C to 120°C

Secondary Compatibility Criteria:

• Current rating: Substitute must equal or exceed 100mA
• Actuator type: Lever, Straight
• Mechanical and electrical life: Minimum 10,000 cycles

The LCS052T07WA20CC qualifies as a substitute based on these parameters. While it features a higher current rating (5A AC) and different termination style (wire leads instead of solder lug), it maintains the essential electrical and mechanical characteristics required for functional equivalence in chassis-mounted SPDT applications.

Parameter Comparison

Engineering Selection Recommendations

The LCS052T07WA20CC is suitable as a substitute for the obsolete LCW012T07SDC based on the following factors:

Compliance and Status: The LCS052T07WA20CC maintains active product status with RoHS compliance, ensuring continued availability and regulatory alignment. The original LCW012T07SDC is obsolete, necessitating substitution for new procurements.

Electrical Equivalence: Both switches operate at 125V AC with SPDT configuration and on-momentary function. The LCS052T07WA20CC provides a current rating of 5A AC, which exceeds the original 100mA requirement, offering improved margin for applications with variable load conditions.

Mechanical Compatibility: Both switches feature identical actuator type (lever, straight), mounting configuration (chassis mount), and ingress protection rating (IP67). Operating force and travel characteristics are comparable, supporting functional interchangeability in mechanical design.

Temperature Consideration: The LCS052T07WA20CC operates across -40°C to 105°C, which covers the lower end of the original range but does not extend to the original 120°C maximum. Applications requiring operation above 105°C require alternative evaluation.

Termination Difference: The substitute features wire leads instead of solder lugs. Circuit board integration or connector adaptation may be required depending on the original assembly method.

Frequently Asked Questions (FAQ)

Q: Can the LCS052T07WA20CC directly replace the LCW012T07SDC without circuit modification?

A: Functional replacement is supported based on electrical and mechanical parameters. However, termination style differs (wire leads versus solder lug), requiring appropriate connection method adaptation in the assembly process.

Q: What is the impact of the higher current rating in the substitute?

A: The LCS052T07WA20CC 5A AC rating exceeds the original 100mA specification. This provides operational margin and does not create incompatibility, as the switch will function correctly at lower current levels within its rated capacity.

Q: Are there temperature limitations when substituting?

A: The LCS052T07WA20CC maximum operating temperature is 105°C, compared to the original 120°C. Applications requiring sustained operation above 105°C must be evaluated separately to confirm suitability.

Q: What packaging differences exist between these parts?

A: The LCW012T07SDC uses standard packaging, while the LCS052T07WA20CC is supplied in tray packaging. This affects procurement and handling procedures but does not impact component functionality.

Q: Are both parts RoHS compliant?

A: Yes. The LCW012T07SDC is RoHS3 compliant, and the LCS052T07WA20CC is RoHS compliant, meeting current environmental and regulatory requirements.