LSYAB3K-5D Equivalent & Substitute Parts

Part Overview

The LSYAB3K-5D is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with side rotary roller actuation. This component is rated for 10A AC at 120V and 800mA DC at 115V, featuring steel roller construction with front mounting capability. The part is classified as obsolete, necessitating identification of active equivalent components to maintain supply chain continuity and support ongoing system maintenance and new production requirements.

Substiute Parts

LSYAB3K-5D

Honeywell Sensing and Productivity SolutionsIn Stock: 785LSYAB3K-5D Datasheet

Current PartRFQ

LSA3K-1B

Honeywell Sensing and Productivity SolutionsIn Stock: 773LSA3K-1B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LSYAB3K-5D is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Parameters:

• Circuit configuration: SPDT (DB/DM)
• Switch function: On-Mom
• Current rating: 10A AC / 800mA DC
• Voltage rating: 120V AC / 115V DC

Mechanical Parameters:

• Actuator type: Side Rotary, Roller
• Mounting type: Chassis Mount
• Termination style: Screw Terminal
• Operating force: 46gfm
• Pretravel: 15°
• Differential travel: 5°
• Overtravel: 60°

Compliance Parameters:

• RoHS Compliant status
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part LSA3K-1B maintains identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: LSA3K-1B is active, whereas LSYAB3K-5D is obsolete. Operating temperature range differs slightly between the two parts, with LSA3K-1B rated for -12°C ~ 121°C compared to LSYAB3K-5D at -40°C ~ 121°C.

Parameter Comparison

Engineering Selection Recommendations

LSA3K-1B is the direct equivalent substitute for LSYAB3K-5D. Both components are manufactured by Honeywell Sensing and Productivity Solutions and maintain identical electrical and mechanical specifications across all critical parameters including circuit configuration, current and voltage ratings, actuator type, mounting configuration, and termination style.

The primary advantage of LSA3K-1B is its active product status, ensuring ongoing availability and manufacturer support. LSYAB3K-5D is classified as obsolete and subject to supply discontinuation.

Operating temperature range represents the only specification variance: LSA3K-1B operates from -12°C to 121°C, while LSYAB3K-5D operates from -40°C to 121°C. Applications requiring operation below -12°C must retain LSYAB3K-5D or identify alternative solutions outside this substitute group.

Both components maintain RoHS compliance and identical moisture sensitivity classification, supporting regulatory and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can LSA3K-1B directly replace LSYAB3K-5D in existing applications?

A: LSA3K-1B is electrically and mechanically equivalent to LSYAB3K-5D across all critical parameters. Direct replacement is supported provided the application operating temperature does not fall below -12°C. Applications requiring operation at temperatures below -12°C require alternative solutions.

Q: What is the primary reason for substitution?

A: LSYAB3K-5D is classified as obsolete. LSA3K-1B is an active product from the same manufacturer with identical specifications, ensuring supply chain continuity.

Q: Are there packaging differences between these parts?

A: LSYAB3K-5D is supplied with unspecified packaging. LSA3K-1B is supplied in bulk packaging. Packaging format does not affect electrical or mechanical performance.

Q: Do both parts meet the same compliance standards?

A: Both LSYAB3K-5D and LSA3K-1B are RoHS compliant with identical moisture sensitivity level classification (MSL 1, Unlimited). Regulatory compliance is equivalent.

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

A: LSYAB3K-5D operates from -40°C to 121°C. LSA3K-1B operates from -12°C to 121°C. The lower temperature limit differs by 28°C. Applications operating below -12°C must use LSYAB3K-5D or identify alternative components.

Q: Are the mechanical actuation characteristics identical?

A: Yes. Both parts feature identical operating force (46gfm), pretravel (15°), differential travel (5°), and overtravel (60°). Mechanical performance is equivalent.