AM51161C43N-A Equivalent & Substitute Parts

Part Overview

The AM51161C43N-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 currently obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and redesign applications where continued component availability is required.

Substiute Parts

AM51161C43N-A

Panasonic Electric WorksIn Stock: 972AM51161C43N-A Datasheet

Current PartRFQ

83264842

CrouzetIn Stock: 119783264842 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM51161C43N-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)
• Actuator type must be Lever, Straight
• Mounting type must be Chassis Mount
• Termination style must be Quick Connect - 0.187" (4.7mm)

Electrical Performance Criteria:

• AC current rating must meet or exceed 11A
• AC voltage rating must meet or exceed 125V
• DC voltage rating must meet or exceed 125V

Mechanical Compatibility Criteria:

• Operating position tolerance must accommodate 0.602" (15.3mm) nominal travel
• Pretravel, differential travel, and overtravel characteristics must be compatible with existing mechanical linkages

The Crouzet 83264842 satisfies all primary compatibility criteria and exceeds electrical performance requirements with 12A AC at 250V rating, making it a direct functional substitute for the obsolete Panasonic component.

Parameter Comparison

Engineering Selection Recommendations

The Crouzet 83264842 is the qualified substitute for the obsolete AM51161C43N-A based on the following engineering factors:

Functional Equivalence: Both switches share identical circuit configuration (SPST-NO), switch function (Off-Mom), actuator geometry (Lever, Straight), mounting method (Chassis Mount), and termination interface (Quick Connect - 0.187"). Operating position measurements differ by only 0.004" (0.1mm), which is within typical mechanical tolerance stackup for chassis-mounted applications.

Electrical Performance: The Crouzet substitute exceeds the original specification with 12A AC capacity versus 11A, and 250V AC rating versus 125V. This provides operational margin for the intended application.

Product Availability: The Crouzet 83264842 is currently in active production status with 1114 units in stock, ensuring long-term supply continuity compared to the obsolete Panasonic component.

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

Mechanical Life Consideration: The Crouzet substitute exhibits 1,000,000 cycle mechanical life versus 10,000,000 cycles for the original. Applications requiring extended cycle life beyond 1,000,000 operations should evaluate this parameter against actual duty cycle requirements.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83264842 directly replace the AM51161C43N-A in existing assemblies?

A: Yes. Both switches share identical mounting type (Chassis Mount), termination style (Quick Connect - 0.187"), and actuator configuration (Lever, Straight). Operating position measurements are within 0.004" (0.1mm), which is compatible with standard mechanical tolerances. No mechanical redesign is required.

Q: What are the electrical differences between these switches?

A: The Crouzet substitute provides higher electrical ratings: 12A AC at 250V versus 11A AC at 125V for the original. This represents an increase in both current capacity and voltage rating, making the substitute suitable for the original application and higher-voltage systems up to 250V AC.

Q: Are there any limitations when substituting the Crouzet part?

A: The Crouzet 83264842 has a mechanical life rating of 1,000,000 cycles compared to 10,000,000 cycles for the original Panasonic switch. For applications with duty cycles exceeding 1,000,000 operations, the mechanical life specification should be evaluated against actual system requirements.

Q: What is the operating temperature range for the substitute?

A: The Crouzet 83264842 operates from -20°C to 125°C, compared to -25°C to 105°C for the original. The substitute provides a wider upper temperature limit (+20°C advantage) but a slightly narrower lower limit (-5°C difference). For most industrial applications, this represents an improvement in thermal operating range.

Q: Are both switches RoHS compliant?

A: The original AM51161C43N-A is listed as Cadmium Free but does not specify RoHS compliance status. The Crouzet 83264842 is explicitly RoHS Compliant and REACH Unaffected, meeting current environmental and regulatory standards for component procurement.

Q: What is the packaging compatibility?

A: Both switches use identical Quick Connect - 0.187" (4.7mm) termination, ensuring direct compatibility with existing connector interfaces and wiring harnesses. No adapter or modification is required.