AM51134D43N-A Equivalent & Substitute Parts

Part Overview

The AM51134D43N-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 with simulated roller actuator and quick connect 0.250" (6.3mm) termination. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing maintenance, repair, and system continuity applications.

Substiute Parts

AM51134D43N-A

Panasonic Electric WorksIn Stock: 798AM51134D43N-A Datasheet

Current PartRFQ

83264826

CrouzetIn Stock: 104083264826 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM51134D43N-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 with simulated roller
• Mounting type must be chassis mount
• Termination style must be quick connect 0.250" (6.3mm)

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 Criteria:

• Operating position, pretravel, differential travel, and overtravel must be compatible with the original mechanical envelope
• Operating temperature range must encompass the original -25°C to 105°C specification or be suitable for the intended application environment

The Crouzet 83264826 qualifies as a substitute part because it maintains identical circuit configuration (SPST-NO), switch function (Off-Mom), actuator type (lever with simulated roller), mounting type (chassis mount), and termination style (quick connect 0.250"). Its electrical ratings (12A AC @ 250V) exceed the original part's requirements, and its operating temperature range (-20°C to 125°C) covers the critical upper temperature threshold of the original specification.

Parameter Comparison

Engineering Selection Recommendations

The Crouzet 83264826 is a functionally equivalent substitute for the obsolete AM51134D43N-A based on matching circuit topology, actuator configuration, mounting method, and termination interface. The substitute part's electrical ratings (12A AC @ 250V) provide margin above the original specification (11A AC @ 125V), ensuring adequate performance in equivalent applications.

The substitute part is currently in active production status with RoHS compliance certification, supporting long-term availability and regulatory alignment for new designs or system replacements.

Mechanical parameter differences require verification in the specific application context:

• Operating position variance (0.730" vs. 0.803") must be confirmed compatible with the mechanical envelope
• Differential travel and overtravel variations are within typical manufacturing tolerances for snap-action switches
• Mechanical life rating of the substitute (1,000,000 cycles) is lower than the original (10,000,000 cycles); applications requiring extended cycle life should evaluate this difference against actual duty cycle requirements

Temperature range compatibility is suitable for most industrial applications, with the substitute covering the critical upper temperature threshold (125°C vs. 105°C original). The 5°C difference in lower temperature threshold (-20°C vs. -25°C) should be evaluated for cold-environment applications.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83264826 be used as a direct replacement for the AM51134D43N-A?

A: Yes, the Crouzet 83264826 qualifies as a functional equivalent based on matching SPST-NO circuit configuration, Off-Mom switch function, lever with simulated roller actuator, chassis mount configuration, and quick connect 0.250" (6.3mm) termination. Mechanical envelope compatibility must be verified for the specific application due to operating position differences.

Q: What are the key electrical differences between these parts?

A: The Crouzet substitute is rated for 12A AC @ 250V compared to the original 11A AC @ 125V. This represents a higher current capacity and voltage rating, providing margin for equivalent or lower-power applications. The original part's DC rating (600mA @ 125V) is not specified for the substitute; applications requiring DC operation should confirm DC performance with the manufacturer.

Q: Are there mechanical compatibility concerns?

A: The operating position differs by approximately 0.073" (1.9mm), with the substitute requiring slightly more travel. Differential travel and overtravel specifications also vary. These differences are typical among snap-action switch designs but must be verified against the mechanical constraints of the specific application, including actuator clearance and mounting bracket design.

Q: How do the cycle life ratings compare?

A: The original AM51134D43N-A is rated for 10,000,000 mechanical cycles, while the Crouzet 83264826 is rated for 1,000,000 cycles. For applications with high-frequency cycling, this tenfold difference should be evaluated against actual duty cycle requirements. Most industrial control applications operate well within the 1,000,000-cycle specification.

Q: What is the temperature operating range difference?

A: The original part operates from -25°C to 105°C, while the substitute operates from -20°C to 125°C. The substitute provides better high-temperature performance (20°C margin above the original). For applications requiring operation below -20°C, the original specification should be confirmed with the system requirements.

Q: Is the Crouzet part RoHS compliant?

A: Yes, the Crouzet 83264826 is RoHS compliant. The original Panasonic part is listed as cadmium-free but does not specify RoHS compliance status. For applications requiring RoHS certification, the Crouzet substitute meets this regulatory requirement.

Q: What should be verified before implementing this substitution?

A: Verification should include mechanical envelope compatibility (operating position and travel distances), confirmation of DC performance requirements if applicable, evaluation of cycle life requirements against the 1,000,000-cycle rating, and confirmation that the -20°C lower temperature threshold is acceptable for the application environment.