AM50066A43-A Equivalent & Substitute Parts

Part Overview

The AM50066A43-A is a SPST-NO (Single Pole Single Throw - Normally Open) snap-action switch manufactured by Panasonic Electric Works, designed for chassis mount applications with lever and roller actuator options. This component is rated for 100mA at 125V AC and 30V DC, making it suitable for low-current control circuits in industrial and commercial equipment.

The AM50066A43-A is classified as obsolete. Identifying equivalent and substitute parts is essential for maintaining system functionality, ensuring design continuity, and supporting long-term product availability in applications where this switch is currently deployed.

Substiute Parts

AM50066A43-A

Panasonic Electric WorksIn Stock: 858AM50066A43-A Datasheet

Current PartRFQ

83265827

CrouzetIn Stock: 66783265827 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AM50066A43-A is determined by the following critical parameters:

Circuit Configuration: Both the main part and substitute must maintain SPST-NO topology to preserve control logic and system behavior.

Switch Function: Off-Momentary operation must be preserved to ensure identical user interaction and control characteristics.

Mounting Type: Chassis mount configuration is required to maintain mechanical compatibility with existing enclosure designs and panel layouts.

Actuator Type: Lever and roller actuator options must be available to support existing mechanical interfaces.

Termination Style: Quick Connect terminals at 0.187" (4.7mm) or compatible alternatives ensure electrical connection compatibility.

Electrical Ratings: Substitute parts must meet or exceed the voltage and current requirements of the original specification (125V AC, 30V DC, 100mA minimum).

Operating Temperature Range: The substitute must support the operational environment of the original application.

The Crouzet 83265827 qualifies as a substitute based on matching circuit configuration (SPST-NO), switch function (Off-Momentary), mounting type (Chassis Mount), actuator type (Lever, Roller), and termination style (Quick Connect). The substitute provides enhanced electrical ratings (250V AC, 5A) and extended temperature range (-20°C to 125°C), making it suitable for applications requiring the original part's functionality.

Parameter Comparison

Engineering Selection Recommendations

The Crouzet 83265827 is an active product with RoHS compliance certification, providing regulatory advantage over the obsolete AM50066A43-A. The substitute maintains functional equivalence through identical circuit configuration, switch function, actuator type, and mounting methodology.

The Crouzet part provides superior electrical ratings (250V AC vs. 125V AC; 5A vs. 100mA), supporting applications with higher power requirements or margin requirements. The extended operating temperature range (-20°C to 125°C vs. -25°C to 105°C) accommodates broader environmental conditions.

Termination style differs: the Crouzet part uses 0.250" (6.3mm) Quick Connect terminals versus the original 0.187" (4.7mm) specification. This difference requires verification of connector compatibility with existing wiring harnesses and panel cutouts.

Mechanical life specification differs (1,000,000 cycles vs. 10,000,000 cycles). Applications requiring extended cycle life should evaluate this parameter against actual duty cycle requirements.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83265827 directly replace the AM50066A43-A without modification?

A: Functional substitution is possible based on matching circuit configuration and switch function. However, the different Quick Connect terminal size (0.250" vs. 0.187") requires verification of connector compatibility. Existing wiring harnesses and panel mounting holes may require adaptation.

Q: What are the key differences in electrical ratings?

A: The Crouzet part provides higher current capacity (5A vs. 100mA) and voltage rating (250V AC vs. 125V AC). These enhanced ratings make the substitute suitable for higher-power applications while remaining compatible with lower-power circuits where the original part was used.

Q: Does the Crouzet part meet regulatory requirements?

A: The Crouzet 83265827 is RoHS Compliant and REACH Unaffected, providing regulatory compliance advantages over the obsolete Panasonic part. Both parts carry EAR99 ECCN classification and share identical HTSUS codes.

Q: Are there differences in mechanical durability?

A: The AM50066A43-A specifies 10,000,000 mechanical cycles, while the Crouzet part specifies 1,000,000 cycles. Applications with high-frequency actuation should evaluate this parameter against actual operational requirements.

Q: What is the impact of the different operating temperature ranges?

A: The Crouzet part supports -20°C to 125°C versus the original -25°C to 105°C. The Crouzet part provides higher upper temperature capability but slightly reduced lower temperature capability. Verify compatibility with the specific thermal environment of your application.

Q: Are both parts available in current inventory?

A: The AM50066A43-A (766 Pcs) and Crouzet 83265827 (622 Pcs) are both listed as new original stock. However, the Panasonic part is obsolete, making the active Crouzet part the recommended choice for new designs and long-term availability.