LSXA4K-2C Equivalent & Substitute Parts

Part Overview

The LSXA4K-2C is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions. This component is classified as obsolete and is designed for chassis mount applications with screw terminal connections. The switch operates at 10A AC (120V) and 800mA DC (115V) with a side rotary adjustable roller actuator. Due to its obsolete product status, identifying equivalent substitute parts is necessary to ensure continued availability and support for maintenance and new design implementations.

Substiute Parts

LSXA4K-2C

Honeywell Sensing and Productivity SolutionsIn Stock: 734LSXA4K-2C Datasheet

Current PartRFQ

LSXA3K-2C

Honeywell Sensing and Productivity SolutionsIn Stock: 1134LSXA3K-2C Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LSXA4K-2C is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

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

Mechanical Compatibility Parameters:

• Actuator type: Side rotary with adjustable roller
• Mounting type: Chassis mount
• Termination style: Screw terminal
• Operating force: 46gfm
• Pretravel: 15°
• Differential travel: 5°
• Overtravel: 60°

Environmental & Compliance Parameters:

• Operating temperature range: -12°C to 121°C
• RoHS compliance status
• Moisture sensitivity level: 1 (Unlimited)

The LSXA3K-2C meets all specified parameters and is classified as an active product within the same LSX series, making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The LSXA3K-2C is the direct substitute for the obsolete LSXA4K-2C. Both components are manufactured by Honeywell Sensing and Productivity Solutions within the LSX series and share identical electrical, mechanical, and environmental specifications.

Selection Basis:

The LSXA3K-2C maintains full parameter equivalence across all critical specifications: SPDT circuit configuration, 10A AC / 800mA DC current ratings, 120V AC / 115V DC voltage ratings, side rotary adjustable roller actuator, chassis mount configuration, and screw terminal termination. Both parts operate across the identical temperature range of -12°C to 121°C and maintain RoHS compliance with MSL 1 rating.

The primary distinction is product status: the LSXA4K-2C is obsolete while the LSXA3K-2C is active. This status difference ensures continued availability and manufacturer support for the LSXA3K-2C. Current inventory levels show 1056 units of the LSXA3K-2C available in bulk packaging, compared to 689 units of the obsolete LSXA4K-2C.

For new designs, maintenance applications, and component replacement scenarios, the LSXA3K-2C is the appropriate selection to ensure long-term supply chain continuity and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the LSXA3K-2C directly replace the LSXA4K-2C in existing applications?

A: Yes. The LSXA3K-2C is electrically and mechanically equivalent to the LSXA4K-2C. All electrical ratings (10A AC at 120V, 800mA DC at 115V), circuit configuration (SPDT), actuator type (side rotary adjustable roller), mounting method (chassis mount), and termination style (screw terminal) are identical. The components are interchangeable in applications where the LSXA4K-2C was originally specified.

Q: What is the difference between LSXA4K-2C and LSXA3K-2C?

A: The primary difference is product status. The LSXA4K-2C is classified as obsolete, while the LSXA3K-2C is active. All functional and electrical parameters are identical. The LSXA3K-2C is supplied in bulk packaging, whereas the LSXA4K-2C was supplied with different packaging specifications.

Q: Are both parts RoHS compliant?

A: Yes. Both the LSXA4K-2C and LSXA3K-2C are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity level ratings.

Q: What is the operating temperature range for these switches?

A: Both components operate across the temperature range of -12°C to 121°C, making them suitable for industrial and commercial applications within this thermal envelope.

Q: Why should I select the LSXA3K-2C over the LSXA4K-2C?

A: The LSXA3K-2C should be selected for new designs and future applications because it is an active product with ongoing manufacturer support and guaranteed availability. The LSXA4K-2C is obsolete and subject to discontinuation. For existing equipment using the LSXA4K-2C, the LSXA3K-2C provides a direct replacement path without design modification.

Q: Are the screw terminal connections compatible between these parts?

A: Yes. Both components use identical screw terminal termination styles, ensuring direct compatibility in existing wiring and connection schemes.