LSYDC5KY-FP Equivalent & Substitute Parts

Part Overview

The LSYDC5KY-FP is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with cable lead termination. This switch is rated for 10A AC at 120V and 800mA DC at 115V, featuring a roller plunger actuator and IP67 ingress protection. The product is currently classified as obsolete, making identification of equivalent substitute parts essential for ongoing maintenance, repair, and system continuity in applications where this component was originally specified.

Substiute Parts

LSYDC5KY-FP

Honeywell Sensing and Productivity SolutionsIn Stock: 1168LSYDC5KY-FP Datasheet

Current PartRFQ

LSYDC3KP-FP

Honeywell Sensing and Productivity SolutionsIn Stock: 1120LSYDC3KP-FP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete LSYDC5KY-FP 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 / 800mA DC
• Voltage rating: 120V AC / 115V DC

Mechanical Compatibility Parameters:

• Actuator type: Roller Plunger
• Mounting type: Chassis Mount
• Termination style: Cable Leads
• Cable length: 12'
• Operating force: 1814gf
• Pretravel: 0.071" (1.8mm)
• Differential travel: 0.016" (0.4mm)
• Overtravel: 0.190" (4.8mm)

Environmental & Compliance Parameters:

• Ingress protection: IP67
• Operating temperature range: -12°C to 105°C
• RoHS compliance
• Moisture sensitivity level: MSL 1

Substitute parts must match all parameters listed above to ensure functional and mechanical interchangeability without design modification.

Parameter Comparison

Engineering Selection Recommendations

The LSYDC3KP-FP is a direct equivalent substitute for the obsolete LSYDC5KY-FP. Both components are manufactured by Honeywell Sensing and Productivity Solutions within the HDLS series and share identical electrical, mechanical, and environmental specifications.

Selection Basis:

The LSYDC3KP-FP maintains full parameter equivalence across all critical dimensions: SPDT circuit configuration, On-Mom switch function, 10A AC / 800mA DC current ratings, 120V AC / 115V DC voltage ratings, roller plunger actuator, chassis mount configuration, cable lead termination, IP67 ingress protection, and operating temperature range of -12°C to 105°C.

Both parts are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity classification, ensuring compliance with current environmental and reliability standards.

The primary distinction is product status: the LSYDC5KY-FP is obsolete, while the LSYDC3KP-FP is active. The active status of the substitute part ensures ongoing availability for procurement and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the LSYDC3KP-FP be used as a direct replacement for the LSYDC5KY-FP without any modifications?

A: Yes. The LSYDC3KP-FP is a direct equivalent substitute. All electrical ratings, mechanical dimensions, actuator characteristics, mounting configuration, and environmental specifications are identical. No design modifications or recalibration are required.

Q: What is the primary reason for substituting the LSYDC5KY-FP?

A: The LSYDC5KY-FP is classified as obsolete. The LSYDC3KP-FP is an active product from the same manufacturer and series, ensuring reliable procurement and supply chain availability.

Q: Are there any differences in the cable lead configuration between these two parts?

A: No. Both parts feature cable lead termination with a 12-foot cable length. The termination style and cable specifications are identical.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both the LSYDC5KY-FP and LSYDC3KP-FP are RoHS compliant, carry MSL 1 (Unlimited) moisture sensitivity classification, and operate across the identical temperature range of -12°C to 105°C.

Q: What are the key mechanical parameters that ensure interchangeability?

A: Interchangeability is ensured by matching operating force (1814gf), pretravel (0.071" / 1.8mm), differential travel (0.016" / 0.4mm), and overtravel (0.190" / 4.8mm). Both parts share these specifications exactly.

Q: Is the LSYDC3KP-FP available in the same packaging as the LSYDC5KY-FP?

A: Both parts are supplied with cable leads as the termination style. The physical mounting interface and chassis mount configuration are identical, ensuring compatibility with existing installations.

Q: What is the ingress protection rating for both parts?

A: Both the LSYDC5KY-FP and LSYDC3KP-FP carry an IP67 rating, indicating dust-tight and waterproof protection suitable for harsh industrial environments.