AM51165C43N-A Equivalent & Substitute Parts

Part Overview

The AM51165C43N-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 termination. This switch is rated for 11A AC at 125V and 600mA DC at 125V, featuring a lever roller actuator with quick connect 0.187" terminals. 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

AM51165C43N-A

Panasonic Electric WorksIn Stock: 713AM51165C43N-A Datasheet

Current PartRFQ

83264847

CrouzetIn Stock: 104983264847 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AM51165C43N-A is determined by the following critical parameters:

Circuit Configuration: SPST-NO topology is mandatory. The switch must operate as a single pole, single throw, normally open device.

Switch Function: Off-Mom (momentary) operation is required. The switch must return to open position upon release.

Mounting and Termination: Chassis mount configuration with quick connect 0.187" (4.7mm) terminals must be maintained for mechanical and electrical compatibility.

Actuator Type: Lever with roller mechanism is the specified actuation method.

Electrical Ratings: The substitute must meet or exceed the AC current rating of 11A at 125V. DC ratings and voltage specifications must be compatible with the application circuit.

Operating Temperature: The substitute must function within the specified temperature range or provide an extended range that encompasses the original specification.

The Crouzet 83264847 qualifies as a substitute based on matching circuit configuration (SPST-NO), switch function (Off-Mom), mounting type (Chassis Mount), termination style (Quick Connect - 0.187"), and actuator type (Lever, Roller). The substitute provides enhanced electrical ratings (12A AC at 250V) and extended operating temperature range (-20°C to 125°C), making it suitable for direct replacement in applications requiring the original component.

Parameter Comparison

Engineering Selection Recommendations

The Crouzet 83264847 is an active product with RoHS compliance certification, providing regulatory advantage over the obsolete AM51165C43N-A. The substitute maintains functional equivalence through identical circuit configuration, switch function, mounting type, and termination style.

The Crouzet part provides superior electrical ratings (12A AC at 250V versus 11A AC at 125V), enabling use in higher voltage applications. The extended operating temperature range (-20°C to 125°C) accommodates broader environmental conditions compared to the original specification (-25°C to 105°C).

Mechanical life specification differs significantly: the original part specifies 10,000,000 cycles while the substitute specifies 1,000,000 cycles. Application duty cycle requirements must be evaluated to determine if this reduction is acceptable for the intended use case.

Operating force is reduced in the substitute (51gf versus 110gf), resulting in lower actuation effort. This characteristic may affect user interface feel and should be considered in applications where consistent tactile feedback is critical.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83264847 directly replace the AM51165C43N-A in existing assemblies?

A: Yes, for applications operating within the Crouzet part's specifications. The matching circuit configuration (SPST-NO), switch function (Off-Mom), mounting type (Chassis Mount), and termination style (Quick Connect - 0.187") ensure mechanical and electrical compatibility. Verify that application voltage and current requirements do not exceed the substitute's ratings and that mechanical life requirements are satisfied.

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

A: The primary differences are electrical ratings, operating force, and mechanical life. The Crouzet part supports higher voltage (250V AC versus 125V AC) and slightly higher current (12A versus 11A). The Crouzet part requires lower actuation force (51gf versus 110gf) and has reduced mechanical life (1,000,000 cycles versus 10,000,000 cycles). Operating position and travel characteristics are nearly identical.

Q: Is the Crouzet 83264847 RoHS compliant?

A: Yes, the Crouzet 83264847 is RoHS compliant. The original AM51165C43N-A does not specify RoHS status. If RoHS compliance is a regulatory requirement for your application, the Crouzet substitute satisfies this requirement.

Q: How do the operating forces compare, and does this matter?

A: The AM51165C43N-A requires 110gf operating force and 20gf release force. The Crouzet 83264847 requires 51gf operating force and 10gf release force. Lower operating force results in easier actuation. If the application requires specific tactile feedback or force characteristics for user interface consistency, this difference should be evaluated in the context of the end-use application.

Q: What is the mechanical life difference, and when does it matter?

A: The original part specifies 10,000,000 mechanical cycles; the substitute specifies 1,000,000 cycles. For applications with high-frequency actuation or long service life requirements, this tenfold reduction may be significant. Calculate expected cycle count over the product lifetime to determine if the substitute's mechanical life is sufficient.

Q: Are the termination styles identical?

A: Yes, both switches use Quick Connect - 0.187" (4.7mm) termination. No connector or wiring modifications are required for substitution.