LS2F4L5 Equivalent & Substitute Parts Reference

Part Overview

The LS2F4L5 is a snap action DPDT (double pole double throw) switch manufactured by Honeywell Sensing and Productivity Solutions. This chassis mount switch is rated for 10A AC at 120V and 800mA DC at 120V, featuring a side roller plunger actuator with screw terminal connections. The LS2F4L5 is classified as obsolete, making identification of equivalent substitute parts essential for ongoing maintenance, repair, and system continuity in applications requiring DPDT switching functionality with these electrical specifications.

Substiute Parts

LS2F4L5

Honeywell Sensing and Productivity SolutionsIn Stock: 1095LS2F4L5 Datasheet

Current PartRFQ

LSF7L5

Honeywell Sensing and Productivity SolutionsIn Stock: 1099LSF7L5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete LS2F4L5 is based on strict electrical and mechanical parameter alignment within the Honeywell HDLS series. The primary substitute part LSF7L5 maintains compatibility through the following critical parameters:

Electrical Compatibility Parameters:

• Circuit configuration: DPDT (DB/DM) maintained
• Switch function: On-Mom maintained
• AC current rating: 10A maintained
• DC current rating: 800mA maintained
• AC voltage rating: 120V maintained

Mechanical Compatibility Parameters:

• Actuator type: Side roller plunger maintained
• Mounting type: Chassis mount maintained
• Termination style: Screw terminal maintained
• Operating force: 2720gf maintained
• Pretravel: 0.100" (2.5mm) maintained
• Overtravel: 0.190" (4.8mm) maintained

Regulatory Compliance:

• RoHS compliant status maintained
• MSL rating: 1 (Unlimited) maintained
• ECCN classification: EAR99 maintained

The LSF7L5 is classified as active product status, ensuring ongoing availability and support for new applications and replacements.

Parameter Comparison

Engineering Selection Recommendations

The LSF7L5 is the direct substitute for the obsolete LS2F4L5 based on electrical and mechanical parameter alignment. Selection of LSF7L5 is supported by the following factors:

Product Status Consideration: The LS2F4L5 is obsolete and no longer manufactured. The LSF7L5 maintains active product status with ongoing manufacturing support from Honeywell Sensing and Productivity Solutions, ensuring supply chain continuity and availability for replacement and new applications.

Regulatory Compliance: Both parts maintain identical RoHS compliance status and MSL ratings, ensuring compatibility with environmental and regulatory requirements. ECCN classification remains EAR99 for both parts.

Electrical Specifications: The LSF7L5 maintains all critical electrical parameters: 10A AC at 120V, 800mA DC, DPDT circuit configuration, and On-Mom switch function. The DC voltage rating difference (115V versus 120V) does not preclude substitution in applications operating at 120V DC, as the LSF7L5 is rated for operation at this voltage level.

Mechanical Specifications: Operating force, pretravel, and overtravel specifications are identical. The differential travel variance (0.035" versus 0.045") represents a 0.010" reduction and falls within acceptable mechanical tolerance for DPDT snap action switch applications.

Temperature Operating Range: The LSF7L5 upper operating temperature limit is 93°C compared to 121°C for the LS2F4L5. Applications requiring sustained operation above 93°C must be evaluated against actual operating conditions to determine compatibility.

Frequently Asked Questions (FAQ)

Q: Can LSF7L5 be used as a direct replacement for LS2F4L5 in all applications?

A: LSF7L5 is electrically and mechanically compatible with LS2F4L5 for applications operating within the LSF7L5 temperature range (-12°C to 93°C). Applications requiring operation above 93°C require evaluation against actual operating conditions. All other electrical and mechanical parameters are compatible.

Q: What is the difference in differential travel between LS2F4L5 and LSF7L5?

A: LS2F4L5 has differential travel of 0.045" (1.1mm), while LSF7L5 has differential travel of 0.035" (0.9mm). This 0.010" difference is within acceptable tolerance for DPDT snap action switch applications and does not affect functional compatibility.

Q: Why is the DC voltage rating different between the two parts?

A: LS2F4L5 is rated 120V DC while LSF7L5 is rated 115V DC. The LSF7L5 is suitable for applications operating at 120V DC. The rating difference reflects manufacturing specifications but does not preclude substitution in 120V DC applications.

Q: Is LSF7L5 available in the same packaging as LS2F4L5?

A: LS2F4L5 packaging information is not specified in the provided data. LSF7L5 is available in bulk packaging. Packaging compatibility should be confirmed based on specific application requirements and assembly processes.

Q: Are both parts RoHS compliant?

A: Yes, both LS2F4L5 and LSF7L5 are RoHS compliant with identical MSL ratings of 1 (Unlimited), ensuring compatibility with environmental and regulatory requirements.

Q: What is the current inventory status for LSF7L5?

A: LSF7L5 has 1028 pieces of new original stock available. LS2F4L5 has 1061 pieces available but is classified as obsolete product.

Q: Can LSF7L5 be used in high-temperature applications?

A: LSF7L5 is rated for operation from -12°C to 93°C. Applications requiring sustained operation above 93°C must be evaluated against actual operating conditions. LS2F4L5 supports operation to 121°C. For high-temperature applications exceeding 93°C, alternative parts may be required.