AM51146D43N-A Equivalent & Substitute Parts

Part Overview

The AM51146D43N-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 chassis-mounted switch is rated for 11A AC at 125V and 600mA DC at 125V, featuring a lever roller actuator with quick connect termination. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for system maintenance, repair, and redesign applications where continued supply cannot be guaranteed.

Substiute Parts

AM51146D43N-A

Panasonic Electric WorksIn Stock: 878AM51146D43N-A Datasheet

Current PartRFQ

83264027

CrouzetIn Stock: 99783264027 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM51146D43N-A is determined by the following critical parameters:

• Circuit Configuration: Must be SPDT to maintain electrical topology compatibility
• Switch Function: Must be On-Momentary to preserve operational behavior
• Actuator Type: Must include lever and roller configuration for mechanical compatibility
• Mounting Type: Must be chassis mount to fit existing mechanical interfaces
• Termination Style: Must be quick connect 0.250" (6.3mm) for direct connection compatibility
• Current and Voltage Ratings: Substitute must meet or exceed the 11A AC @ 125V requirement to handle the same load conditions
• Operating Temperature Range: Should encompass or exceed the -25°C to 105°C range for environmental compatibility

The Crouzet 83264027 satisfies these substitution criteria. It maintains SPDT circuit configuration, on-momentary function, lever roller actuator, chassis mount design, and 0.250" quick connect termination. The Crouzet part 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 83264027 is a functional substitute for the AM51146D43N-A based on the following engineering criteria:

Electrical Compatibility: The Crouzet part exceeds the original current and voltage specifications (12A AC @ 250V versus 11A AC @ 125V), ensuring adequate electrical capacity for the intended application.

Mechanical Compatibility: Both switches share identical actuator type (lever roller), mounting configuration (chassis mount), and termination style (0.250" quick connect), enabling direct mechanical and electrical interface compatibility.

Product Status: The Crouzet 83264027 is active in production, providing supply continuity for the obsolete AM51146D43N-A.

Regulatory Compliance: The Crouzet part is RoHS compliant and REACH unaffected, meeting current environmental and regulatory standards.

Operational Characteristics: Operating position and release force are equivalent between the two parts. The Crouzet part operates at a lower force (51gf versus 60gf) and supports an extended upper temperature limit (125°C versus 105°C).

Mechanical Life Consideration: The Crouzet part specifies 1,000,000 mechanical cycles compared to 10,000,000 cycles for the original. Applications requiring the full 10,000,000-cycle specification should evaluate this difference against actual duty cycle requirements.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83264027 directly replace the AM51146D43N-A in existing applications?

A: Yes, provided the application does not require the full 10,000,000-cycle mechanical life specification. The Crouzet part meets all electrical, mechanical, and interface requirements for direct substitution.

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

A: The primary differences are product status (obsolete versus active), mechanical life rating (10,000,000 versus 1,000,000 cycles), operating force (60gf versus 51gf), and regulatory compliance (RoHS status specified for Crouzet only). Electrical and mechanical interfaces are equivalent.

Q: Does the lower operating force of the Crouzet part affect compatibility?

A: The 51gf operating force of the Crouzet part is lower than the 60gf of the original. This difference may affect tactile feedback and actuation characteristics. Applications sensitive to actuation force should evaluate this parameter against system requirements.

Q: Are there any temperature range limitations when substituting?

A: The Crouzet part supports -20°C to 125°C, compared to -25°C to 105°C for the original. The Crouzet part does not extend to -25°C. Applications operating below -20°C require verification that the original temperature specification is necessary.

Q: What is the impact of the reduced 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 high cycle counts, the actual duty cycle should be evaluated against this specification to determine if the reduced rating is acceptable.

Q: Are both switches cadmium-free?

A: The AM51146D43N-A is specified as cadmium-free. The Crouzet part does not specify cadmium content in the provided data. Applications with cadmium-free requirements should confirm this specification with the manufacturer.