AM51163D43N-A Equivalent & Substitute Parts

Part Overview

The AM51163D43N-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 essential for system maintenance, repair, and redesign applications where continued supply cannot be guaranteed.

Substiute Parts

AM51163D43N-A

Panasonic Electric WorksIn Stock: 962AM51163D43N-A Datasheet

Current PartRFQ

83264843

CrouzetIn Stock: 92683264843 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM51163D43N-A is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPST-NO
• Switch function must be Off-Mom (momentary operation)
• Mounting type must be Chassis Mount
• Actuator type must be Lever, Straight
• Current and voltage ratings must meet or exceed the original specification

Secondary Compatibility Criteria:

• Termination style compatibility (quick connect variants acceptable if mechanical fit is verified)
• Operating temperature range must encompass the application environment
• Mechanical life rating must support the intended duty cycle

The Crouzet 83264843 qualifies as a functional substitute based on matching circuit configuration (SPST-NO), switch function (Off-Mom), mounting type (Chassis Mount), and actuator type (Lever, Straight). The substitute provides enhanced electrical ratings (12A AC @ 250V) and extended operating temperature range (-20°C to 125°C), supporting broader application scenarios.

Parameter Comparison

Engineering Selection Recommendations

The Crouzet 83264843 is suitable as a substitute for the obsolete AM51163D43N-A in applications requiring SPST-NO momentary switching with chassis mount configuration. The substitute part offers active product status, ensuring continued availability and supply chain reliability.

Electrical Compatibility: The Crouzet part exceeds the original voltage rating (250V AC vs. 125V AC) and matches the current requirement (12A AC vs. 11A AC). For DC applications, verify that the Crouzet part's DC rating accommodates the 600mA DC requirement of the original specification.

Mechanical Compatibility: Operating position and actuator geometry are equivalent (15.3mm vs. 15.4mm), supporting direct mechanical substitution in existing chassis installations. The reduced operating force (25gf vs. 30gf) may affect tactile feedback characteristics.

Lifecycle Considerations: The Crouzet part's mechanical life rating (1,000,000 cycles) is lower than the original (10,000,000 cycles). Applications with high-cycle duty requirements should evaluate this parameter against expected service life.

Compliance Status: The Crouzet 83264843 is RoHS Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83264843 directly replace the AM51163D43N-A in existing equipment?

A: Direct mechanical and electrical substitution is supported for applications operating within the Crouzet part's specifications. Verify that the application does not exceed 1,000,000 mechanical cycles over the component's service life, as this is the primary limitation compared to the original part.

Q: What are the key differences in electrical ratings?

A: The Crouzet part is rated for 12A AC at 250V, compared to the original 11A AC at 125V. This represents an increase in both current and voltage capacity. For DC applications, confirm that the Crouzet part's DC rating is specified and suitable for your 600mA DC requirement.

Q: Are there termination compatibility concerns?

A: The original part uses 0.250" (6.3mm) quick connect termination, while the Crouzet part uses 0.187" (4.7mm) quick connect termination. Verify that your equipment's connector receptacles accommodate the smaller terminal size, or plan for terminal adapter or rewiring as necessary.

Q: How do the operating characteristics compare?

A: Operating position is nearly identical (15.3mm vs. 15.4mm), supporting equivalent mechanical behavior. The Crouzet part requires slightly less operating force (25gf vs. 30gf), which may result in a lighter tactile response. Pretravel and differential travel specifications differ; confirm these parameters align with your application's switching requirements.

Q: What is the impact of the lower mechanical life rating?

A: The Crouzet part is rated for 1,000,000 mechanical cycles versus 10,000,000 for the original. For applications with continuous or frequent switching, calculate expected cycle count over the intended service life to determine if this limitation affects component selection.

Q: Are there regulatory or compliance advantages to the substitute?

A: The Crouzet 83264843 is an active product with RoHS Compliance and REACH Unaffected status, ensuring alignment with current environmental and regulatory standards. The original AM51163D43N-A, being obsolete, may present supply chain and compliance documentation challenges.