AM51163C43N-A Equivalent & Substitute Parts

Part Overview

The AM51163C43N-A is a snap-action switch manufactured by Panasonic Electric Works, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device with chassis mount installation. This switch is rated for 11A AC at 125V and 600mA DC at 125V, featuring a straight lever actuator and quick connect termination. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and component sourcing.

Substiute Parts

AM51163C43N-A

Panasonic Electric WorksIn Stock: 1070AM51163C43N-A Datasheet

Current PartRFQ

83264843

CrouzetIn Stock: 92683264843 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM51163C43N-A is determined by the following critical parameters:

• Circuit configuration must be SPST-NO
• Switch function must be Off-Mom (momentary operation)
• Actuator type must be lever with straight configuration
• Mounting type must be chassis mount
• Termination style must be quick connect 0.187" (4.7mm)
• Current rating must meet or exceed 11A AC at the operating voltage
• Voltage rating must support minimum 125V AC operation
• Operating temperature range must encompass the required -25°C to 105°C span

The Crouzet 83264843 satisfies these substitution criteria. While it operates at a higher voltage rating (250V AC) and current capacity (12A AC), these represent enhanced electrical specifications that maintain backward compatibility with the original circuit requirements. The mechanical parameters—lever actuator, chassis mount configuration, and quick connect termination—are identical to the original part.

Parameter Comparison

Engineering Selection Recommendations

The Crouzet 83264843 is the qualified substitute for the obsolete AM51163C43N-A. Selection is supported by the following factors:

• Both parts share identical circuit topology (SPST-NO) and switch function (Off-Mom momentary operation)
• Mechanical interface compatibility is confirmed: identical actuator type, mounting configuration, and termination style
• The Crouzet part maintains active product status, ensuring ongoing availability and supply chain continuity
• Electrical specifications of the Crouzet part exceed the original requirements, providing operational margin
• Both parts carry identical MSL rating (1 - Unlimited) and ECCN classification (EAR99), ensuring equivalent handling and regulatory compliance
• The Crouzet part is RoHS Compliant and REACH Unaffected, meeting current environmental and safety standards

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83264843 directly replace the AM51163C43N-A in existing applications?

A: Yes. Both parts are SPST-NO momentary switches with identical mechanical interfaces (lever actuator, chassis mount, 0.187" quick connect termination). The Crouzet part's higher voltage and current ratings do not prevent substitution in circuits designed for the original 11A/125V specification.

Q: What are the key mechanical differences between these parts?

A: Operating force differs slightly (30gf for Panasonic versus 25gf for Crouzet), and overtravel is marginally reduced in the Crouzet part (0.079" versus 0.087"). Operating position is nearly identical (15.3mm versus 15.4mm). These differences are within typical mechanical tolerance ranges for snap-action switches.

Q: Are there temperature range considerations for substitution?

A: The Crouzet part operates across a wider temperature range (-20°C to 125°C) compared to the original (-25°C to 105°C). If the application requires operation below -20°C, the original specification must be verified. For standard industrial applications within -20°C to 105°C, the Crouzet part is fully compatible.

Q: What compliance certifications apply to the substitute part?

A: The Crouzet 83264843 is RoHS Compliant and REACH Unaffected. Both the original and substitute parts carry EAR99 ECCN classification and MSL rating 1 (Unlimited moisture sensitivity).

Q: How do the electrical life ratings compare?

A: The original AM51163C43N-A specifies 100,000 electrical cycles. The Crouzet part does not provide an electrical life specification in the available data. Both parts specify mechanical life ratings (10,000,000 cycles for Panasonic; 1,000,000 cycles for Crouzet), indicating robust mechanical durability suitable for momentary switch applications.