LSXF3K5 Equivalent & Substitute Parts Reference

Part Overview

The LSXF3K5 is a snap action switch manufactured by Honeywell Sensing and Productivity Solutions, configured as a single-pole double-throw (SPDT) device with chassis mount installation. This switch is rated for 10A AC at 120V and 800mA DC at 115V, featuring a side roller plunger actuator and screw terminal connections. The LSXF3K5 is classified as obsolete, making identification of equivalent substitute components essential for ongoing maintenance, repair, and system continuity in applications requiring SPDT snap action switching functionality.

Substiute Parts

LSXF3K5

Honeywell Sensing and Productivity SolutionsIn Stock: 703LSXF3K5 Datasheet

Current PartRFQ

LSF3K5

Honeywell Sensing and Productivity SolutionsIn Stock: 806LSF3K5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete LSXF3K5 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

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

Mechanical Equivalence Requirements:

• Actuator type: Side Roller Plunger
• Mounting type: Chassis Mount
• Termination style: Screw Terminal
• Operating force: 2720gf
• Pretravel: 0.100" (2.5mm)
• Overtravel: 0.190" (4.8mm)
• Operating temperature range: -12°C to 93°C minimum

Compliance Requirements:

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

The LSF3K5 meets all specified electrical and mechanical parameters for direct substitution with the LSXF3K5.

Parameter Comparison

Engineering Selection Recommendations

The LSF3K5 is the direct substitute for the obsolete LSXF3K5. Both components are manufactured by Honeywell Sensing and Productivity Solutions and maintain identical electrical ratings, mechanical specifications, and compliance certifications. The LSF3K5 carries active product status, ensuring ongoing availability and supply chain continuity.

The differential travel specification of the LSF3K5 (0.025" / 0.6mm) is tighter than the LSXF3K5 (0.045" / 1.1mm). This represents a more precise switching characteristic and does not restrict compatibility in applications designed for the LSXF3K5, as the LSF3K5 operates within the same force and travel envelope.

Both components are RoHS Compliant with MSL 1 (Unlimited) rating, confirming suitability for standard industrial and commercial applications without moisture sensitivity constraints.

Frequently Asked Questions (FAQ)

Q: Can the LSF3K5 directly replace the LSXF3K5 in existing installations?

A: Yes. The LSF3K5 meets all electrical and mechanical specifications of the LSXF3K5. Both components feature identical current ratings (10A AC, 800mA DC), voltage ratings (120V AC, 115V DC), actuator type (side roller plunger), mounting configuration (chassis mount), and termination style (screw terminal). The operating force, pretravel, overtravel, and temperature range are equivalent.

Q: What is the significance of the differential travel difference between these parts?

A: The LSXF3K5 specifies 0.045" (1.1mm) differential travel, while the LSF3K5 specifies 0.025" (0.6mm). Differential travel defines the distance between the actuation point and the release point. The LSF3K5's tighter differential travel indicates a more precise switching response. This does not prevent substitution; it represents an improvement in switching characteristics within the same mechanical envelope.

Q: Are there packaging differences between the LSXF3K5 and LSF3K5?

A: The LSXF3K5 is supplied in standard packaging, while the LSF3K5 is available in bulk packaging. Packaging format does not affect electrical or mechanical performance. Selection between packaging options depends on procurement quantity requirements and inventory management practices.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the LSXF3K5 and LSF3K5 are RoHS Compliant and carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling. Both components are suitable for standard industrial applications without additional environmental controls.

Q: Why is the LSXF3K5 classified as obsolete?

A: Obsolescence indicates that the LSXF3K5 is no longer in active production. The LSF3K5 represents the current active equivalent from Honeywell Sensing and Productivity Solutions, ensuring continued availability and support for applications requiring this switch configuration.