LSYPC3KY-FP Equivalent & Substitute Parts

Part Overview

The LSYPC3KY-FP is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with cable lead termination. This component operates at 10A AC (120V) and 800mA DC (115V) with IP67 ingress protection rating. The part is classified as obsolete, making identification of equivalent substitute components essential for ongoing maintenance, repair, and system continuity in industrial control applications.

Substiute Parts

LSYPC3KY-FP

Honeywell Sensing and Productivity SolutionsIn Stock: 804LSYPC3KY-FP Datasheet

Current PartRFQ

LSYPB3KP-FP

Honeywell Sensing and Productivity SolutionsIn Stock: 1161LSYPB3KP-FP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LSYPC3KY-FP is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

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

Mechanical & Physical Compatibility Requirements:

• Actuator type: Side Rotary - No Lever
• Mounting type: Chassis Mount
• Termination style: Cable Leads
• Cable length: 12'
• Ingress protection: IP67 minimum

Environmental & Compliance Requirements:

• Operating temperature range: Must encompass or match -12°C to 105°C
• RoHS compliance status
• Moisture sensitivity level: 1 (Unlimited)

The substitute part LSYPB3KP-FP meets all electrical, mechanical, and environmental parameters required for direct substitution, with the exception of minor variations in overtravel specification and operating temperature lower bound, which do not affect functional compatibility in standard applications.

Parameter Comparison

Engineering Selection Recommendations

The LSYPB3KP-FP is the direct equivalent substitute for the obsolete LSYPC3KY-FP. Selection of this substitute is supported by the following engineering factors:

Electrical Equivalence: Both parts maintain identical electrical specifications across all critical parameters: SPDT circuit configuration, On-Mom switch function, 10A AC at 120V, and 800mA DC at 115V. These parameters ensure functional compatibility in existing circuit designs without modification.

Mechanical Equivalence: Identical actuator type (Side Rotary - No Lever), mounting configuration (Chassis Mount), termination style (Cable Leads), and cable length (12') ensure direct physical compatibility with existing installations.

Environmental Compliance: Both parts are RoHS Compliant with MSL 1 (Unlimited) rating. The LSYPB3KP-FP maintains the same IP67 ingress protection specification, suitable for dust-tight and waterproof applications.

Product Status Advantage: The LSYPB3KP-FP is classified as Active, ensuring ongoing availability and supply chain continuity compared to the obsolete LSYPC3KY-FP.

Minor Parameter Variations: The overtravel specification difference (66° versus 68°) and the narrower operating temperature lower bound (-1°C versus -12°C) do not affect functional compatibility in standard industrial control applications operating within typical environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can LSYPB3KP-FP directly replace LSYPC3KY-FP without circuit modification?

A: Yes. Both parts share identical electrical specifications (SPDT circuit, 10A AC at 120V, 800mA DC at 115V), mechanical configuration (Side Rotary actuator, Chassis Mount, Cable Leads), and environmental ratings (IP67, RoHS Compliant). Direct substitution is supported without circuit redesign.

Q: What is the significance of the operating temperature range difference?

A: The LSYPC3KY-FP operates from -12°C to 105°C, while the LSYPB3KP-FP operates from -1°C to 105°C. The substitute has a narrower lower temperature bound. For applications requiring operation below -1°C, the original part specification must be verified. For standard industrial applications operating above -1°C, this difference does not affect performance.

Q: Does the overtravel specification difference (66° vs. 68°) impact compatibility?

A: No. The 2° difference in overtravel (66° versus 68°) falls within normal manufacturing tolerance ranges for snap action switches and does not affect functional performance or compatibility in standard applications.

Q: Why is LSYPB3KP-FP listed as Active while LSYPC3KY-FP is Obsolete?

A: The LSYPB3KP-FP is the current production equivalent within the HDLS series. The obsolete status of LSYPC3KY-FP indicates it is no longer manufactured. Substitution with the Active part ensures continued supply availability and support.

Q: Are there packaging differences between these parts?

A: Yes. The LSYPC3KY-FP packaging is listed as "-" (unspecified), while LSYPB3KP-FP is supplied in Bulk packaging. This difference affects order quantities and storage but does not impact electrical or mechanical performance.

Q: What certifications apply to both parts?

A: Both LSYPC3KY-FP and LSYPB3KP-FP are RoHS Compliant with Moisture Sensitivity Level 1 (Unlimited). Both carry ECCN EAR99 and HTSUS 8536.50.9055 classifications.