LSYCC3KY-FP Equivalent & Substitute Parts

Part Overview

The LSYCC3KY-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 round pin plunger actuator and IP67 ingress protection. The product is currently classified as obsolete, making identification of equivalent substitute parts essential for system maintenance, repair, and component sourcing in legacy equipment applications.

Key Parameters

Parameter	Value
Circuit Configuration	SPDT (DB/DM)
Switch Function	On-Mom (Momentary)
Current Rating (AC)	10A
Current Rating (DC)	800mA
Voltage Rating (AC)	120V
Voltage Rating (DC)	115V
Actuator Type	Round (Pin Plunger)
Mounting Type	Chassis Mount
Termination Style	Cable Leads
Ingress Protection	IP67 - Dust Tight, Waterproof
Cable Length	12'
Operating Force	1814gf
Pretravel	0.071" (1.8mm)
Differential Travel	0.016" (0.4mm)
Overtravel	0.190" (4.8mm)
Operating Temperature Range	-12°C to 105°C
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the LSYCC3KY-FP is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Circuit configuration (SPDT DB/DM), switch function (On-Mom), current ratings (10A AC / 800mA DC), and voltage ratings (120V AC / 115V DC) must be identical.

Mechanical Parameters: Actuator type (round pin plunger), mounting type (chassis mount), termination style (cable leads), and cable length (12') must match exactly.

Environmental Parameters: Ingress protection rating (IP67), operating temperature range (-12°C to 105°C), and operating force (1814gf) must be maintained.

Compliance Parameters: RoHS compliance and MSL rating (1) must be preserved.

The LSYCC3KP-FP qualifies as a direct substitute based on complete alignment with all specified parameters. The primary distinction is packaging type and product status, with LSYCC3KP-FP available in bulk packaging and active product status, whereas LSYCC3KY-FP is obsolete.

Parameter Comparison

Parameter	LSYCC3KY-FP (Main Part)	LSYCC3KP-FP (Substitute)
Manufacturer	Honeywell Sensing and Productivity Solutions	Honeywell Sensing and Productivity Solutions
Series	HDLS	HDLS
Circuit Configuration	SPDT (DB/DM)	SPDT (DB/DM)
Switch Function	On-Mom	On-Mom
Current Rating (AC)	10A	10A
Current Rating (DC)	800mA	800mA
Voltage Rating (AC)	120V	120V
Voltage Rating (DC)	115V	115V
Actuator Type	Round (Pin Plunger)	Round (Pin Plunger)
Mounting Type	Chassis Mount	Chassis Mount
Termination Style	Cable Leads	Cable Leads
Ingress Protection	IP67 - Dust Tight, Waterproof	IP67 - Dust Tight, Waterproof
Cable Length	12'	12'
Operating Force	1814gf	1814gf
Pretravel	0.071" (1.8mm)	0.071" (1.8mm)
Differential Travel	0.016" (0.4mm)	0.016" (0.4mm)
Overtravel	0.190" (4.8mm)	0.190" (4.8mm)
Operating Temperature Range	-12°C to 105°C	-12°C to 105°C
RoHS Status	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
Packaging	Standard	Bulk

Engineering Selection Recommendations

The LSYCC3KP-FP is a direct functional equivalent to the LSYCC3KY-FP. Both parts share identical electrical, mechanical, and environmental specifications within the HDLS series from Honeywell Sensing and Productivity Solutions. The LSYCC3KP-FP is the preferred selection for new sourcing activities due to its active product status, ensuring continued availability and supply chain stability. Both parts maintain RoHS compliance and MSL rating 1, satisfying regulatory and environmental requirements. The distinction between the two parts is limited to packaging configuration (bulk versus standard) and product lifecycle status. For applications requiring the LSYCC3KY-FP, the LSYCC3KP-FP provides complete functional interchangeability without modification to circuit design, mechanical mounting, or electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can LSYCC3KP-FP replace LSYCC3KY-FP in existing equipment?

A: Yes. The LSYCC3KP-FP is electrically and mechanically identical to the LSYCC3KY-FP. All electrical ratings (10A AC at 120V, 800mA DC at 115V), mechanical specifications (chassis mount, cable leads, 12' cable length), and environmental parameters (IP67, -12°C to 105°C operating range) are equivalent. Direct substitution is possible without circuit modification.

Q: What is the difference between LSYCC3KY-FP and LSYCC3KP-FP?

A: The primary differences are packaging type and product status. LSYCC3KY-FP is supplied in standard packaging and is classified as obsolete. LSYCC3KP-FP is supplied in bulk packaging and maintains active product status. All functional and technical specifications are identical.

Q: Why is LSYCC3KY-FP classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued standard production and support for this specific part number variant. The LSYCC3KP-FP represents the active equivalent within the same product family.

Q: Are both parts RoHS compliant?

A: Yes. Both LSYCC3KY-FP and LSYCC3KP-FP are RoHS compliant with MSL rating 1 (unlimited moisture sensitivity level), meeting environmental and regulatory requirements.

Q: What does the cable length specification mean?

A: Both parts include 12 feet of cable leads for termination. This cable length is integral to the component and cannot be modified.

Q: Can these switches be used in DC applications?

A: Yes. Both switches are rated for DC operation at 800mA maximum current and 115V maximum voltage. AC and DC ratings are independent specifications.

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