AM51663C73N-A Equivalent & Substitute Parts

Part Overview

The AM51663C73N-A is a snap-action switch manufactured by Panasonic Electric Works, configured as a single-pole single-throw normally open (SPST-NO) device rated for 16A at 125V AC and 600mA at 125V DC. This chassis-mounted switch features a straight lever actuator with quick-connect 0.187" (4.7mm) termination and is designed for momentary off-on applications. The product is classified as obsolete, making equivalent substitutes necessary for ongoing maintenance, repair, and new design implementations where this component is specified.

Substiute Parts

AM51663C73N-A

Panasonic Electric WorksIn Stock: 1079AM51663C73N-A Datasheet

Current PartRFQ

LS0851502F120C1C

E-SwitchIn Stock: 687LS0851502F120C1C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM51663C73N-A is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPST-NO
• Switch function: Off-Mom (momentary operation)
• Mounting type: Chassis Mount
• Termination style: Quick Connect - 0.187" (4.7mm)
• Voltage rating: Minimum 125V AC
• Current rating: Minimum 15A AC (acceptable tolerance for 16A primary specification)
• Actuator type: Lever, Straight

The substitute part LS0851502F120C1C from E-Switch meets these core electrical and mechanical requirements. Both parts share identical circuit topology, mounting configuration, termination interface, and actuator geometry. The substitute maintains compatibility with existing mechanical and electrical interfaces while providing active product status and current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The LS0851502F120C1C qualifies as a direct substitute for the AM51663C73N-A based on matching electrical specifications, identical mechanical interface, and compatible circuit topology. The substitute part carries active product status with current manufacturing support, addressing the obsolescence of the original component.

The AC current rating differential (15A versus 16A) falls within acceptable engineering tolerance for most applications, as the substitute maintains the 125V AC voltage specification and SPST-NO circuit configuration. The substitute's ROHS3 compliance and REACH unaffected status provide regulatory alignment for new designs and ongoing production.

The operating temperature range of the substitute (-25°C to 85°C) is narrower than the original (-25°C to 105°C). Applications requiring operation above 85°C require evaluation against specific thermal requirements before substitution.

Frequently Asked Questions (FAQ)

Q: Can LS0851502F120C1C replace AM51663C73N-A in existing assemblies?

A: Yes. Both parts share identical mounting type (chassis mount), termination style (quick connect 0.187"), actuator configuration (straight lever), and circuit topology (SPST-NO). Direct mechanical and electrical substitution is supported without interface modification.

Q: What is the significance of the 1A current rating difference?

A: The substitute is rated 15A AC versus the original 16A AC at 125V. This 6% reduction is within standard engineering tolerance for most industrial and commercial applications. Applications operating continuously near maximum current should be evaluated against actual load requirements.

Q: Are there temperature limitations with the substitute?

A: The substitute operates from -25°C to 85°C, compared to the original -25°C to 105°C. Applications requiring sustained operation above 85°C should verify thermal compatibility before substitution.

Q: Does the substitute meet current regulatory requirements?

A: Yes. The LS0851502F120C1C is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

Q: What is the packaging difference?

A: The original AM51663C73N-A is available in standard packaging, while the substitute LS0851502F120C1C is supplied in bulk packaging. Verify packaging requirements for your procurement and assembly processes.