AM51112D43N-A Equivalent & Substitute Parts

Part Overview

The AM51112D43N-A is a snap action SPDT switch manufactured by Panasonic Electric Works, designed for chassis mount applications with 11A AC and 600mA DC current capacity at 125V. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing maintenance, repair, and new design implementations where legacy component compatibility is required.

Substiute Parts

AM51112D43N-A

Panasonic Electric WorksIn Stock: 1182AM51112D43N-A Datasheet

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83264022

CrouzetIn Stock: 111783264022 Datasheet

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V7-1B17D8-122

Honeywell Sensing and Productivity SolutionsIn Stock: 811V7-1B17D8-122 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM51112D43N-A is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPDT
• Switch function: On-Mom
• Current rating: Minimum 11A AC capability
• Voltage rating: Minimum 125V AC
• Actuator type: Lever, Straight
• Mounting type: Chassis Mount
• Termination style: Quick Connect connector

Secondary Compatibility Factors:

• Operating temperature range overlap
• Electrical and mechanical life ratings
• Moisture sensitivity classification

Two substitute parts meet these criteria with varying degrees of parameter alignment. The Honeywell V7-1B17D8-122 provides direct electrical and mechanical equivalence with identical circuit configuration and current/voltage ratings. The Crouzet 83264022 offers higher voltage and current capacity with comparable mechanical characteristics but represents an over-specification scenario.

Parameter Comparison

Engineering Selection Recommendations

Honeywell V7-1B17D8-122 is the primary substitute for direct replacement applications. This part maintains identical electrical specifications (11A AC, 125V AC/DC), matching mechanical life (10,000,000 cycles), and equivalent electrical life (100,000 cycles). Both components share MSL 1 classification. The Honeywell part is currently active in production with RoHS compliance certification, ensuring long-term availability and regulatory alignment. The termination connector differs in size (0.187" versus 0.250"), requiring connector adaptation in the circuit board or harness assembly.

Crouzet 83264022 serves as an alternative for applications requiring higher voltage and current margins. This part provides 250V AC and 12A AC capacity, offering over-specification for 125V/11A circuits. The Crouzet component is active and RoHS compliant but exhibits reduced mechanical life (1,000,000 cycles versus 10,000,000 cycles). Selection of this part is appropriate only when higher electrical ratings provide system-level benefits or when connector compatibility (0.250" Quick Connect) eliminates assembly modifications.

Frequently Asked Questions (FAQ)

Q: Can the Honeywell V7-1B17D8-122 directly replace the AM51112D43N-A without circuit modifications?

A: Electrical and functional compatibility is confirmed. The termination connector size differs (0.187" versus 0.250"), requiring adapter or harness modification. Operating temperature range differs (-40°C to 85°C versus -25°C to 105°C); verify application temperature requirements before selection.

Q: What is the significance of the different termination connector sizes?

A: The AM51112D43N-A uses 0.250" (6.3mm) Quick Connect terminals, while the Honeywell V7-1B17D8-122 uses 0.187" (4.7mm) terminals. Physical connector compatibility with existing circuit board or harness connectors must be verified. Adapter plates or harness retermination may be required.

Q: Why does the Crouzet 83264022 have lower mechanical life than the original part?

A: The Crouzet part specifies 1,000,000 mechanical cycles versus 10,000,000 cycles for the AM51112D43N-A and Honeywell substitute. This difference reflects different design and manufacturing approaches. For applications requiring extended cycle life, the Honeywell part is preferred.

Q: Are both substitute parts RoHS compliant?

A: Yes. The Honeywell V7-1B17D8-122 and Crouzet 83264022 are both RoHS compliant. The original AM51112D43N-A RoHS status is not specified in available documentation.

Q: What is the impact of the operating temperature range differences?

A: The AM51112D43N-A operates from -25°C to 105°C. The Honeywell substitute operates from -40°C to 85°C (lower maximum temperature), while the Crouzet operates from -20°C to 125°C (higher maximum temperature). Application temperature requirements must be evaluated against each substitute's rated range.

Q: Can the Crouzet 83264022 be used in a 125V circuit designed for the AM51112D43N-A?

A: Yes. The Crouzet part is rated for 250V AC, which exceeds the 125V circuit requirement. The 12A AC rating also exceeds the 11A requirement. This represents over-specification but maintains functional compatibility. Connector compatibility (0.250" Quick Connect) matches the original part.