Honeywell LSA3K3 Snap Action Switch: Equivalent & Substitute Parts

Part Overview

The Honeywell LSA3K3 is a snap action switch with Single Pole Double Throw (SPDT) configuration, rated for 10A AC at 120V and 800mA DC at 115V. This component features a side rotary actuator without lever, chassis mount termination with screw terminals, and is designed for On-Momentary switch function applications.

The LSA3K3 carries an Obsolete product status. Locating equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for repair, replacement, and new design implementations. The LSP3K3 represents the active equivalent within the Honeywell HDLS series.

Substiute Parts

LSA3K3

Honeywell Sensing and Productivity SolutionsIn Stock: 1190LSA3K3 Datasheet

Current PartRFQ

LSP3K3

Honeywell Sensing and Productivity SolutionsIn Stock: 1022LSP3K3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LSA3K3 with the LSP3K3 is based on strict equivalence across all critical electrical and mechanical parameters:

Matching Parameters (Substitution Basis):

• 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 type: Chassis Mount
• Termination style: Screw Terminal
• Operating temperature range: -12°C to 121°C
• RoHS compliance: Yes
• Moisture sensitivity level: MSL 1

Distinguishing Factors:

• LSA3K3: Obsolete status, pretravel 15°, differential travel 5°, overtravel 60°
• LSP3K3: Active status, pretravel 9°, differential travel 3°, overtravel 66°

The LSP3K3 is the active production equivalent within the Honeywell HDLS series, maintaining full electrical and mechanical compatibility while offering improved availability.

Parameter Comparison

Engineering Selection Recommendations

For LSA3K3 Replacement:

The LSP3K3 is the direct active equivalent for the obsolete LSA3K3. Both components share identical electrical ratings, circuit configuration, and mechanical mounting characteristics. The LSP3K3 is currently in active production status with confirmed inventory availability (930 pcs), ensuring supply chain continuity.

Compliance Considerations:

Both the LSA3K3 and LSP3K3 maintain RoHS compliance and carry identical ECCN (EAR99) and HTSUS (8536.50.7000) classifications, supporting regulatory and export requirements without modification.

Operational Differences:

The LSP3K3 exhibits reduced pretravel (9° versus 15°) and differential travel (3° versus 5°), with increased overtravel (66° versus 60°). These mechanical parameter variations remain within the functional envelope of the SPDT On-Momentary switch class and do not affect electrical performance or circuit compatibility.

Frequently Asked Questions (FAQ)

Q: Can the LSP3K3 directly replace the LSA3K3 in existing applications?

A: Yes. The LSP3K3 maintains full electrical and mechanical compatibility with the LSA3K3. Both components share identical current ratings (10A AC / 800mA DC), voltage ratings (120V AC / 115V DC), circuit configuration (SPDT), actuator type (side rotary without lever), mounting type (chassis mount), and termination style (screw terminal).

Q: What is the primary reason for substitution?

A: The LSA3K3 carries an Obsolete product status. The LSP3K3 is the active production equivalent within the Honeywell HDLS series, providing assured long-term availability and supply chain stability.

Q: Are there packaging differences between LSA3K3 and LSP3K3?

A: The LSA3K3 is supplied in standard packaging, while the LSP3K3 is supplied in Bulk packaging. Both formats are suitable for component integration; packaging selection depends on procurement and inventory management requirements.

Q: Do the mechanical parameter differences (pretravel, differential travel, overtravel) affect circuit performance?

A: No. The mechanical parameter variations between the LSA3K3 and LSP3K3 do not alter electrical performance, switching characteristics, or circuit compatibility. Both components function identically within the SPDT On-Momentary switch classification.

Q: Are both parts RoHS compliant?

A: Yes. Both the LSA3K3 and LSP3K3 are RoHS compliant and carry identical ECCN (EAR99) and HTSUS (8536.50.7000) classifications.

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

A: Both the LSA3K3 and LSP3K3 operate across the identical temperature range of -12°C to 121°C, supporting applications across standard industrial and commercial environments.