Honeywell LSA3KC Snap Action Switch - Equivalent & Substitute Parts

Part Overview

The Honeywell LSA3KC is a snap action SPDT (Single Pole Double Throw) switch designed for chassis mount applications with 10A AC and 800mA DC current capacity at 120V AC / 115V DC. This component features side rotary actuation without lever, IP67 ingress protection, and cable lead termination with 6-foot cable length.

The LSA3KC carries an obsolete product status. Identifying functionally equivalent substitute parts is necessary to maintain design continuity and ensure procurement availability for applications requiring SPDT snap action switching with identical electrical and mechanical specifications.

Substiute Parts

LSA3KC

Honeywell Sensing and Productivity SolutionsIn Stock: 1065LSA3KC Datasheet

Current PartRFQ

LSA1AC

Honeywell Sensing and Productivity SolutionsIn Stock: 1169LSA1AC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete LSA3KC is based on electrical and mechanical parameter equivalence within the Honeywell HDLS series. The substitute part LSA1AC maintains identical specifications across all critical switching parameters:

Substitution Criteria (Mandatory Match):

• Circuit configuration: SPDT (DB/DM)
• Switch function: On-Momentary
• Current ratings: 10A AC / 800mA DC
• Voltage ratings: 120V AC / 115V DC
• Actuator type: Side Rotary - No Lever
• Mounting: Chassis Mount
• Termination: Cable Leads (6-foot length)
• Ingress protection: IP67
• Operating temperature: -12°C to 60°C
• RoHS status: Compliant

The LSA1AC qualifies as a direct substitute because all electrical switching characteristics, mechanical mounting interfaces, and environmental ratings are identical to the LSA3KC.

Parameter Comparison

Engineering Selection Recommendations

The LSA1AC is the qualified substitute for the obsolete LSA3KC based on complete electrical and mechanical parameter equivalence. Both components are manufactured by Honeywell Sensing and Productivity Solutions within the HDLS series and maintain identical switching characteristics, voltage/current ratings, and environmental specifications.

The LSA1AC carries active product status, ensuring continued availability and manufacturing support. Both parts maintain RoHS compliance and identical regulatory classifications (ECCN: EAR99). The substitute part is available in bulk packaging with confirmed inventory of 1,101 pieces.

No design modifications, circuit alterations, or application re-qualification are required when substituting LSA1AC for LSA3KC in existing designs. The components are mechanically and electrically interchangeable.

Frequently Asked Questions (FAQ)

Q: Can LSA1AC directly replace LSA3KC in existing applications?

A: Yes. The LSA1AC is electrically and mechanically identical to the LSA3KC across all specified parameters including circuit configuration, current/voltage ratings, actuator type, mounting interface, and environmental protection rating. Direct substitution is supported without design changes.

Q: What is the primary difference between LSA3KC and LSA1AC?

A: The LSA3KC is obsolete, while the LSA1AC maintains active product status. The LSA1AC is available in bulk packaging versus the LSA3KC cable lead termination. All functional and electrical specifications are identical.

Q: Are there any compliance or certification differences?

A: No. Both components are RoHS compliant, carry identical ECCN classification (EAR99), and maintain the same moisture sensitivity level (MSL 1 - Unlimited). Regulatory and environmental compliance is equivalent.

Q: Does cable length remain the same with the substitute part?

A: Yes. Both LSA3KC and LSA1AC feature 6-foot cable leads as the termination standard. Cable length and lead configuration are identical.

Q: What is the operating temperature range for both parts?

A: Both components operate across the identical temperature range of -12°C to 60°C. Thermal specifications are equivalent.

Q: Are the mechanical actuation characteristics the same?

A: Yes. Operating force (46 gfm), pretravel (15°), differential travel (5°), and overtravel (60°) are identical between LSA3KC and LSA1AC. Mechanical response characteristics are equivalent.

Q: Is inventory availability a consideration for this substitution?

A: The LSA1AC has confirmed inventory of 1,101 pieces in stock, supporting immediate procurement. The obsolete LSA3KC has limited remaining inventory of 957 pieces. The active status of LSA1AC ensures long-term supply continuity.