AM51623C73N-A Equivalent & Substitute Parts

Part Overview

The AM51623C73N-A is a snap-action switch manufactured by Panasonic Electric Works, configured as a single-pole, single-throw normally-closed (SPST-NC) device rated for 16A at 125V AC and 600mA at 125V DC. This chassis-mount switch features a straight lever actuator with quick-connect 0.187" (4.7mm) termination and is designed for momentary on operation. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing maintenance, repair, and system continuity.

Substiute Parts

AM51623C73N-A

Panasonic Electric WorksIn Stock: 1036AM51623C73N-A Datasheet

Current PartRFQ

83261643

CrouzetIn Stock: 114483261643 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM51623C73N-A is determined by the following critical parameters:

• Circuit configuration must be SPST-NC
• Switch function must be On-Mom (momentary operation)
• Actuator type must be lever with straight configuration
• Mounting type must be chassis mount
• Termination style must be quick connect 0.187" (4.7mm)
• Current rating must support minimum 16A AC operation
• Voltage rating must support minimum 125V AC operation
• Mechanical and electrical life specifications must meet or exceed application requirements

The Crouzet 83261643 satisfies these substitution criteria. While it features a higher AC voltage rating (250V) and different mechanical life specification (1,000,000 cycles versus 10,000,000 cycles), it maintains functional equivalence across all critical switching parameters and physical interface requirements.

Parameter Comparison

Engineering Selection Recommendations

The Crouzet 83261643 is an active product with RoHS compliance and REACH unaffected status, providing supply chain continuity for applications currently using the obsolete AM51623C73N-A. Both switches share identical circuit topology, current rating, actuator configuration, and termination interface.

The Crouzet substitute operates at a higher AC voltage rating (250V versus 125V), which provides additional voltage margin in 125V AC applications. The operating force differential (102gf versus 120gf) and release force variation (25gf versus 20gf) fall within typical mechanical tolerance ranges for snap-action switches and do not preclude functional substitution.

The primary consideration is mechanical life specification: the Crouzet device is rated for 1,000,000 cycles compared to the Panasonic original's 10,000,000 cycles. Applications requiring extended mechanical cycling should evaluate this parameter against actual duty cycle requirements.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83261643 directly replace the AM51623C73N-A in existing assemblies?

A: Yes. Both switches share identical SPST-NC circuit configuration, 16A AC current rating, straight lever actuator, chassis mount configuration, and 0.187" (4.7mm) quick-connect termination. Physical and electrical interfaces are compatible.

Q: What is the significance of the voltage rating difference (125V versus 250V)?

A: The Crouzet substitute has a higher voltage rating, which means it can safely operate in circuits up to 250V AC. In applications using 125V AC, this provides additional voltage margin. The higher rating does not negatively affect performance at lower voltages.

Q: How does the mechanical life difference affect substitution suitability?

A: The AM51623C73N-A is rated for 10,000,000 mechanical cycles, while the Crouzet 83261643 is rated for 1,000,000 cycles. Applications with high-frequency cycling should verify that the Crouzet device's mechanical life meets the specific duty cycle requirements of the end application.

Q: Are there compliance or supply chain advantages to using the Crouzet substitute?

A: The Crouzet 83261643 is an active product with RoHS compliance and REACH unaffected status, ensuring ongoing availability and regulatory alignment. The original Panasonic part is obsolete, making the Crouzet substitute the preferred choice for new designs and long-term supply security.

Q: Do the operating force and release force differences impact functionality?

A: The operating force (102gf versus 120gf) and release force (25gf versus 20gf) variations are within normal mechanical tolerance ranges for snap-action switches. These differences do not affect the switch's ability to perform its intended momentary on-off function in standard applications.