LSYAB1AB Equivalent & Substitute Parts Reference

Part Overview

The LSYAB1AB is a snap action SPDT (Single Pole Double Throw) switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with side rotary actuator and connector termination. This component operates at 10A AC (120V) and 800mA DC (115V) with IP67 ingress protection rating.

The LSYAB1AB is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing maintenance and production requirements for systems utilizing this switch configuration.

Substiute Parts

LSYAB1AB

Honeywell Sensing and Productivity SolutionsIn Stock: 800LSYAB1AB Datasheet

Current PartRFQ

LSA1AA

Honeywell Sensing and Productivity SolutionsIn Stock: 935LSA1AA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LSYAB1AB is determined by strict equivalence across the following critical parameters:

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

Mechanical Parameters: Actuator type (Side Rotary - No Lever), mounting type (Chassis Mount), and termination style (Connector) 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 LSA1AA meets all these criteria and is identified as a direct substitute for the obsolete LSYAB1AB.

Parameter Comparison

Engineering Selection Recommendations

The LSA1AA is the direct substitute for the obsolete LSYAB1AB based on complete electrical, mechanical, and environmental parameter equivalence. Both components are manufactured by Honeywell Sensing and Productivity Solutions within the HDLS series and maintain identical RoHS compliance and MSL ratings.

The LSA1AA is currently in active production status with 886 units available in inventory, compared to the LSYAB1AB which is obsolete with 765 units remaining. The LSA1AA is supplied in bulk packaging.

One operational consideration exists: the LSA1AA operating temperature range (-12°C ~ 100°C) is narrower than the LSYAB1AB range (-40°C ~ 121°C). Applications requiring operation below -12°C or above 100°C must evaluate this temperature differential against system requirements.

All other parameters—circuit configuration, current and voltage ratings, actuator type, mounting configuration, termination style, ingress protection, mechanical travel specifications, and operating force—are identical between the two components.

Frequently Asked Questions (FAQ)

Q: Can LSA1AA directly replace LSYAB1AB in existing designs?

A: Yes, the LSA1AA provides direct substitution for the obsolete LSYAB1AB. All electrical specifications (10A AC at 120V, 800mA DC at 115V), circuit configuration (SPDT), mechanical characteristics (side rotary actuator, chassis mount, connector termination), and environmental ratings (IP67) are identical. The component operates identically within the overlapping temperature range of -12°C to 100°C.

Q: What is the temperature range difference between these parts?

A: The LSYAB1AB operates from -40°C to 121°C, while the LSA1AA operates from -12°C to 100°C. The LSA1AA range is narrower at both extremes. Applications requiring operation outside the -12°C to 100°C window must confirm compatibility with system thermal requirements.

Q: Are the packaging formats different?

A: Yes. The LSYAB1AB is supplied with unspecified packaging (indicated as "-"), while the LSA1AA is supplied in bulk packaging. Procurement and handling procedures may differ accordingly.

Q: Do both parts meet RoHS compliance requirements?

A: Yes. Both the LSYAB1AB and LSA1AA are RoHS compliant with MSL 1 (Unlimited) moisture sensitivity level ratings.

Q: What is the availability status of each part?

A: The LSYAB1AB is obsolete with 765 units remaining in inventory. The LSA1AA is in active production status with 886 units currently available. For new designs and ongoing production, the LSA1AA should be specified.

Q: Are the mechanical specifications identical?

A: Yes. Both components share identical mechanical specifications: 46gfm operating force, 15° pretravel, 5° differential travel, and 60° overtravel. The side rotary actuator without lever and chassis mount configuration are identical.