AM50666C33-A Equivalent & Substitute Parts

Part Overview

The AM50666C33-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 6A at 125V AC and 500mA at 125V DC, featuring a lever roller actuator with quick connect 0.187" terminals. The product is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing maintenance, repair, and system continuity applications.

Substiute Parts

AM50666C33-A

Panasonic Electric WorksIn Stock: 918AM50666C33-A Datasheet

Current PartRFQ

83264848

CrouzetIn Stock: 112283264848 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AM50666C33-A is determined by the following critical parameters:

• Circuit Configuration: SPST-NO topology is mandatory for functional equivalence
• Switch Function: Off-Mom (momentary) operation must be preserved
• Actuator Type: Lever with roller mechanism
• Mounting Type: Chassis mount configuration
• Termination Style: Quick Connect 0.187" (4.7mm) terminals
• Electrical Ratings: Current and voltage ratings must meet or exceed the original specification
• Operating Temperature Range: Substitute must function within the required thermal envelope
• Mechanical Reliability: Cycle life and operating force characteristics must support the intended application

The Crouzet 83264848 qualifies as a substitute based on matching circuit topology, switch function, actuator type, mounting configuration, and termination style. The substitute provides enhanced electrical ratings (12A at 250V AC versus 6A at 125V AC), ensuring compatibility with the original application envelope while offering improved performance margins.

Parameter Comparison

Engineering Selection Recommendations

The Crouzet 83264848 is an active product with RoHS compliance certification, providing continuity for applications requiring the AM50666C33-A. The substitute maintains identical circuit topology, switch function, actuator configuration, mounting type, and termination style. Electrical ratings are superior, with the Crouzet device rated for 12A at 250V AC compared to the original 6A at 125V AC specification, ensuring adequate performance margin for the original application.

The operating temperature range of the Crouzet substitute (-20°C to 125°C) encompasses the original specification (-25°C to 105°C) with extended upper temperature capability. Both devices share identical release force characteristics (5.099gf) and unlimited moisture sensitivity classification (MSL 1).

Selection of the Crouzet 83264848 is supported by product status (active versus obsolete), regulatory compliance (RoHS), and electrical performance enhancement. No design modifications are required for direct substitution in chassis mount applications utilizing 0.187" quick connect termination.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83264848 directly replace the AM50666C33-A in existing assemblies?

A: Yes. Both switches share identical circuit topology (SPST-NO), switch function (Off-Mom), actuator type (lever roller), mounting configuration (chassis mount), and termination style (0.187" quick connect). No mechanical or electrical modifications are required.

Q: What are the key differences between these two switches?

A: The primary differences are manufacturer (Panasonic versus Crouzet), product status (obsolete versus active), and electrical ratings. The Crouzet device is rated for 12A at 250V AC versus the Panasonic 6A at 125V AC. The Crouzet has a lower operating force (25gf versus 30gf) and reduced mechanical life (1,000,000 cycles versus 10,000,000 cycles). The Crouzet offers extended upper operating temperature (125°C versus 105°C).

Q: Are there any compliance or certification differences?

A: The Crouzet 83264848 carries RoHS compliance certification. Both devices are classified as MSL 1 (Unlimited moisture sensitivity) and share the same ECCN classification (EAR99).

Q: What is the impact of the lower mechanical life rating on the Crouzet substitute?

A: The Crouzet device is rated for 1,000,000 mechanical cycles compared to the Panasonic 10,000,000 cycles. Application-specific cycle requirements must be evaluated to determine if this difference affects suitability for the intended use case.

Q: Are the operating force characteristics compatible?

A: The Crouzet operating force is 25gf compared to the Panasonic 30gf. This 5gf reduction may be perceptible in manual actuation applications but does not affect electrical performance or switching reliability.

Q: What termination compatibility should be verified?

A: Both switches use Quick Connect 0.187" (4.7mm) termination. Existing connector receptacles designed for the AM50666C33-A are compatible with the Crouzet 83264848 without modification.