AM51140C43N-A Equivalent & Substitute Parts

Part Overview

The AM51140C43N-A is a snap action switch manufactured by Panasonic Electric Works, configured as a single-pole double-throw (SPDT) device with on-momentary function. This component is rated for 11A AC at 125V and features a round pin plunger actuator with chassis mount configuration. The product is currently obsolete, making equivalent substitute parts necessary for system maintenance, repair, and legacy equipment support.

Substiute Parts

AM51140C43N-A

Panasonic Electric WorksIn Stock: 953AM51140C43N-A Datasheet

Current PartRFQ

83161806

CrouzetIn Stock: 78583161806 Datasheet

SimilarRFQ

83264041

CrouzetIn Stock: 80983264041 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AM51140C43N-A are identified based on the following critical parameters that determine functional compatibility:

• Circuit Configuration: SPDT topology must be maintained
• Switch Function: On-momentary operation required
• Actuator Type: Round pin plunger design
• Mounting Type: Chassis mount configuration
• Termination Style: Quick connect terminal compatibility
• Operating Position: 0.579" (14.7mm) stroke requirement
• Electrical Ratings: AC voltage and current capacity sufficient for application requirements

The substitute parts listed below meet these core criteria while accommodating variations in voltage ratings, current capacity, and operating temperature ranges based on specific application needs.

Parameter Comparison

Engineering Selection Recommendations

Crouzet 83264041 is the primary substitute for direct replacement in applications operating at 250V AC. This part maintains the identical termination style (0.187" quick connect), matching operating position, and provides 12A AC capacity at the higher voltage rating. The part is active in production with RoHS compliance and REACH unaffected status.

Crouzet 83161806 serves as an alternative for applications where 250V AC operation is acceptable and current requirements do not exceed 5A. This part features an extended operating temperature range (-60°C to 150°C) and superior mechanical life (20,000,000 cycles). The termination style differs (0.250" quick connect), requiring connector verification before implementation.

Both Crouzet substitutes are active products with current manufacturing support, providing supply chain continuity for legacy equipment maintenance.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83161806 be used as a direct replacement for the AM51140C43N-A?

A: The 83161806 maintains SPDT circuit configuration, on-momentary function, round pin plunger actuator, and chassis mount design. However, the termination style differs (0.250" versus 0.187" quick connect), and current capacity is reduced to 5A at 250V. Connector compatibility must be verified before substitution.

Q: What are the key differences between the two Crouzet substitutes?

A: The 83264041 provides higher current capacity (12A versus 5A) and matches the original termination style (0.187" quick connect). The 83161806 offers extended temperature range and superior mechanical life but requires connector adaptation due to different termination size.

Q: Are both substitute parts RoHS compliant?

A: The Crouzet 83264041 is RoHS compliant. The Crouzet 83161806 is RoHS compliant. Compliance documentation should be verified for specific application requirements.

Q: What is the impact of voltage rating differences?

A: The original AM51140C43N-A operates at 125V AC. Both Crouzet substitutes are rated for 250V AC, providing higher voltage capability. Applications operating at 125V can safely use 250V-rated components. Current capacity at the lower voltage should be verified against application requirements.

Q: How do mechanical life ratings affect component selection?

A: The AM51140C43N-A provides 10,000,000 cycles mechanical life. The 83264041 offers 1,000,000 cycles, while the 83161806 provides 20,000,000 cycles. Selection should align with expected cycle count in the target application.