LSYAB1AC Snap Action Switch - Equivalent & Substitute Parts

Part Overview

The LSYAB1AC is a snap action switch manufactured by Honeywell Sensing and Productivity Solutions, classified as a Single Pole Double Throw (SPDT) switch with chassis mount configuration. This component is rated for 10A AC at 120V and 800mA DC at 115V, featuring a side rotary actuator without lever and cable lead termination. The LSYAB1AC is currently listed as obsolete product status. Identification of equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for maintenance, repair, and new design implementations where this switch specification remains applicable.

Substiute Parts

LSYAB1AC

Honeywell Sensing and Productivity SolutionsIn Stock: 1149LSYAB1AC Datasheet

Current PartRFQ

LSA1AC

Honeywell Sensing and Productivity SolutionsIn Stock: 1169LSA1AC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LSYAB1AC is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Circuit configuration (SPDT), switch function (On-Momentary), current ratings (10A AC / 800mA DC), and voltage ratings (120V AC / 115V DC) must remain identical.

Mechanical Parameters: Actuator type (Side Rotary - No Lever), mounting configuration (Chassis Mount), and termination style (Cable Leads) must match exactly.

Environmental Parameters: Ingress protection rating (IP67), operating force (46gfm), pretravel (15°), differential travel (5°), and overtravel (60°) must be equivalent.

Compliance Parameters: RoHS compliance and MSL rating must be maintained.

The LSA1AC substitute part meets all these criteria and is identified as an active product with current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The LSA1AC is a direct functional equivalent to the LSYAB1AC across all specified electrical, mechanical, and environmental parameters. The primary distinction is product status: LSYAB1AC is obsolete while LSA1AC maintains active manufacturing status.

For applications currently utilizing LSYAB1AC, the LSA1AC provides equivalent performance with the advantage of continued availability and manufacturing support. Both components are RoHS compliant and carry identical MSL ratings, ensuring compatibility with modern manufacturing and storage requirements.

The LSA1AC is manufactured by the same supplier (Honeywell Sensing and Productivity Solutions) within the same HDLS series, confirming design continuity and reliability equivalence.

Frequently Asked Questions (FAQ)

Q: Can LSA1AC directly replace LSYAB1AC in existing applications?

A: Yes. The LSA1AC meets all electrical, mechanical, and environmental specifications of the LSYAB1AC. Both components feature identical circuit configuration (SPDT), current ratings (10A AC / 800mA DC), voltage ratings (120V AC / 115V DC), actuator type, mounting configuration, and termination style.

Q: What is the primary reason to transition from LSYAB1AC to LSA1AC?

A: The LSYAB1AC is classified as obsolete product status, meaning manufacturing has been discontinued. The LSA1AC is an active product with current manufacturing availability, ensuring supply chain continuity for maintenance and new applications.

Q: Are there packaging differences between LSYAB1AC and LSA1AC?

A: The LSYAB1AC is supplied with cable leads as termination. The LSA1AC is available in bulk packaging. Both maintain identical electrical and mechanical specifications.

Q: Do both parts meet current compliance standards?

A: Yes. Both LSYAB1AC and LSA1AC are RoHS compliant and carry MSL rating 1 (Unlimited), meeting current environmental and moisture sensitivity requirements.

Q: Are the operating temperature ranges identical?

A: The LSYAB1AC operates from -40°C to 121°C. The LSA1AC operates from -12°C to 60°C. Application requirements must be evaluated against the specific operating temperature range needed for the intended use case.