AM51154C43N-A Equivalent & Substitute Parts

Part Overview

The AM51154C43N-A is a snap-action switch manufactured by Panasonic Electric Works, configured as a SPST-NC (Single Pole Single Throw - Normally Closed) chassis mount component. This switch is rated for 11A AC at 125V and features a lever with simulated roller actuator. The product is currently obsolete, making identification of functionally equivalent alternatives necessary for system maintenance, repair, and redesign applications where continued sourcing of the original component is not feasible.

Substiute Parts

AM51154C43N-A

Panasonic Electric WorksIn Stock: 1173AM51154C43N-A Datasheet

Current PartRFQ

83264646

CrouzetIn Stock: 99983264646 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AM51154C43N-A is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NC to maintain identical electrical behavior
• Switch Function: Must be On-Mom (momentary action)
• Actuator Type: Must be lever with simulated roller for mechanical compatibility
• Mounting Type: Must be chassis mount to fit existing mechanical interfaces
• Termination Style: Must be Quick Connect - 0.187" (4.7mm) for direct connection compatibility
• Current and Voltage Ratings: Substitute must meet or exceed the 11A AC @ 125V requirement
• Operating Temperature Range: Substitute must cover the operational environment

The Crouzet 83264646 qualifies as a functional substitute based on matching circuit configuration (SPST-NC), switch function (On-Mom), actuator type (lever with simulated roller), mounting type (chassis mount), and termination style (Quick Connect - 0.187"). The substitute exceeds the current rating (12A AC) and voltage rating (250V AC), providing margin for the original application requirements.

Parameter Comparison

Engineering Selection Recommendations

The Crouzet 83264646 is an active product with current manufacturing status, ensuring availability for new designs and replacement applications. The substitute meets all critical electrical and mechanical interface requirements of the AM51154C43N-A. The higher current and voltage ratings provide operational margin beyond the original specification.

Mechanical differences exist in operating force (27gf versus 60gf) and operating position (0.803" versus 0.730"), which may affect tactile feedback and mechanical clearance in the host assembly. The substitute's mechanical life rating of 1,000,000 cycles is lower than the original's 10,000,000 cycles; this difference should be evaluated against the specific duty cycle of the application.

The Crouzet part is RoHS Compliant and REACH Unaffected, meeting current environmental and regulatory standards applicable to electronic components.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83264646 be used as a direct replacement for the AM51154C43N-A?

A: Yes, for applications where the electrical circuit requirements (SPST-NC, momentary action) and mechanical interface (chassis mount, Quick Connect 0.187" termination) are the primary constraints. Mechanical differences in operating force and travel distance should be verified against the specific application requirements.

Q: What are the key differences between these two switches?

A: The primary differences are operating force (27gf vs. 60gf), operating position (0.803" vs. 0.730"), and mechanical life rating (1,000,000 vs. 10,000,000 cycles). The Crouzet part has higher electrical ratings (12A @ 250V vs. 11A @ 125V) and a wider upper operating temperature range (-20°C to 125°C vs. -25°C to 105°C).

Q: Does the lower mechanical life rating of the Crouzet part affect suitability?

A: The mechanical life rating should be compared against the actual duty cycle of the application. If the application requires fewer than 1,000,000 actuations over the product lifetime, the Crouzet part is suitable. Applications with higher cycle requirements should evaluate this parameter carefully.

Q: Are the termination connectors compatible?

A: Yes. Both switches use Quick Connect - 0.187" (4.7mm) termination, allowing direct connection to existing wiring harnesses and PCB connectors designed for the original part.

Q: What is the impact of the different operating forces?

A: The Crouzet part requires 27gf of force to actuate compared to 60gf for the original. This lower actuation force may affect user perception of switch response and should be evaluated in applications where tactile feedback is critical to operation.