AM51642C53N-A Equivalent & Substitute Parts

Part Overview

The AM51642C53N-A is a snap action SPDT switch manufactured by Panasonic Electric Works, designed for chassis mount applications with quick connect termination. This part operates at 16A AC / 600mA DC at 125V with a straight lever actuator and on-momentary switch function. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing maintenance, repair, and new design applications requiring compatible switching functionality.

Substiute Parts

AM51642C53N-A

Panasonic Electric WorksIn Stock: 969AM51642C53N-A Datasheet

Current PartRFQ

83261043

CrouzetIn Stock: 98883261043 Datasheet

SimilarRFQ

TFS10ST2040C

C&KIn Stock: 1266TFS10ST2040C Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM51642C53N-A is determined by the following critical parameters:

• Circuit configuration must be SPDT
• Switch function must be On-Momentary
• Mounting type must be Chassis Mount
• Termination style must be Quick Connect - 0.187" (4.7mm)
• Actuator type must be Lever, Straight
• Current and voltage ratings must meet or exceed the original specification
• Operating temperature range must encompass the application requirements

Two substitute parts meet these criteria with varying degrees of parameter alignment:

Crouzet 83261043: Matches all core mechanical and electrical interface requirements. Operates at higher voltage (250V AC) with equivalent current capacity (16A AC). Active product status with RoHS compliance.

C&K TFS10ST2040C: Matches all mechanical interface requirements and circuit configuration. Operates at equivalent voltage (125V AC) but with reduced current capacity (10A AC versus 16A AC). Active product status with RoHS3 compliance and IP40 ingress protection.

Parameter Comparison

Engineering Selection Recommendations

Crouzet 83261043 is the primary substitute for applications requiring full electrical capacity retention. This part maintains the 16A AC current rating and provides higher voltage margin (250V AC versus 125V AC). The part is active with RoHS compliance and REACH unaffected status, supporting modern supply chain requirements. Mechanical life specification of 1,000,000 cycles is lower than the original part; applications requiring extended cycle life should account for this difference.

C&K TFS10ST2040C is suitable for applications where current requirements do not exceed 10A AC. This part provides equivalent voltage rating (125V AC), extended lower temperature operation (-40°C), and maintains the 10,000,000 cycle mechanical life specification. RoHS3 compliance and IP40 ingress protection are available. The reduced current capacity makes this substitute applicable only to circuits designed for 10A or lower operation.

Both substitute parts are active products with current manufacturing support and modern compliance certifications, addressing the obsolescence of the original AM51642C53N-A.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83261043 be used as a direct replacement for the AM51642C53N-A?

A: The Crouzet 83261043 is mechanically and functionally compatible. All interface parameters match: SPDT circuit, on-momentary function, chassis mount, and 0.187" quick connect termination. The 250V AC rating exceeds the 125V requirement. Mechanical life is reduced to 1,000,000 cycles compared to 10,000,000 cycles in the original part.

Q: What is the primary limitation of the C&K TFS10ST2040C as a substitute?

A: The C&K TFS10ST2040C operates at 10A AC maximum, compared to the original 16A AC rating. This part is suitable only for applications where the circuit current does not exceed 10A AC. All other mechanical and functional parameters are compatible.

Q: Are both substitute parts RoHS compliant?

A: Yes. The Crouzet 83261043 is RoHS Compliant, and the C&K TFS10ST2040C is RoHS3 Compliant. Both parts meet modern environmental and regulatory requirements.

Q: How do the operating temperature ranges compare?

A: The original AM51642C53N-A operates from -25°C to 105°C. The Crouzet 83261043 extends the upper limit to 125°C (-20°C to 125°C). The C&K TFS10ST2040C extends the lower limit to -40°C (-40°C to 85°C) but reduces the upper limit to 85°C. Application temperature requirements should determine which substitute is appropriate.

Q: Do the substitute parts have the same mechanical life expectancy?

A: No. The original part and C&K TFS10ST2040C both specify 10,000,000 cycles mechanical life. The Crouzet 83261043 specifies 1,000,000 cycles. Applications with high cycle count requirements should account for this difference when selecting the Crouzet part.

Q: Are the quick connect terminations identical across all three parts?

A: Yes. All three parts use Quick Connect - 0.187" (4.7mm) termination, ensuring mechanical compatibility with existing connector interfaces.