AM50655C33-A Equivalent & Substitute Parts

Part Overview

The AM50655C33-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 6A at 125V AC and 500mA at 125V DC. This chassis-mount switch features a lever-roller actuator with quick-connect 0.187" (4.7mm) termination and is designed for momentary on-off applications. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and design continuity in legacy systems.

Key Parameters

Parameter	Value
Circuit Configuration	SPST-NC (Single-Pole, Single-Throw, Normally-Closed)
Switch Function	On-Mom (Momentary)
Current Rating (AC)	6A
Current Rating (DC)	500mA
Voltage Rating (AC)	125V
Voltage Rating (DC)	125V
Actuator Type	Lever, Roller
Mounting Type	Chassis Mount
Termination Style	Quick Connect - 0.187" (4.7mm)
Operating Temperature Range	-25°C to 105°C
Electrical Life	100,000 Cycles
Mechanical Life	10,000,000 Cycles

Substitute Part Grouping Explanation

Substitution of the AM50655C33-A is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Circuit configuration must remain SPST-NC
Switch function must be On-Mom (momentary)
Actuator type must be lever-roller
Mounting type must be chassis mount
Termination style must be quick connect 0.187" (4.7mm)
Current rating must support minimum 6A AC
Voltage rating must support minimum 125V AC
Electrical life must meet or exceed 100,000 cycles
Mechanical life must meet or exceed 10,000,000 cycles

The Crouzet 831607B6.E satisfies all primary substitution criteria. While it is rated for 250V AC (exceeding the 125V requirement), this represents a higher capability margin and does not compromise compatibility. The identical circuit configuration, switch function, actuator type, mounting method, and termination style ensure direct functional equivalence.

Parameter Comparison

Parameter	AM50655C33-A (Panasonic)	831607B6.E (Crouzet)	Compatibility
Manufacturer	Panasonic Electric Works	Crouzet	Different manufacturer
Circuit Configuration	SPST-NC	SPST-NC	Equivalent
Switch Function	On-Mom	On-Mom	Equivalent
Current Rating (AC)	6A	6A	Equivalent
Voltage Rating (AC)	125V	250V	Substitute exceeds requirement
Actuator Type	Lever, Roller	Lever, Roller	Equivalent
Mounting Type	Chassis Mount	Chassis Mount	Equivalent
Termination Style	Quick Connect - 0.187" (4.7mm)	Quick Connect - 0.187" (4.7mm)	Equivalent
Operating Temperature Range	-25°C to 105°C	-40°C to 85°C	Partial overlap: -25°C to 85°C
Electrical Life	100,000 Cycles	100,000 Cycles	Equivalent
Mechanical Life	10,000,000 Cycles	10,000,000 Cycles	Equivalent
Product Status	Obsolete	Active	Substitute is currently available
RoHS Status	Not specified	RoHS Compliant	Substitute meets modern compliance

Engineering Selection Recommendations

The Crouzet 831607B6.E is a direct functional equivalent for the obsolete AM50655C33-A. Selection of this substitute is supported by:

Functional Equivalence: Both switches share identical circuit configuration (SPST-NC), switch function (On-Mom), actuator type (lever-roller), mounting method (chassis mount), and termination style (quick connect 0.187"). Current and electrical/mechanical life ratings are equivalent.

Voltage Margin: The Crouzet substitute is rated for 250V AC, which exceeds the 125V AC requirement of the original part. This higher voltage rating provides additional operational margin without introducing compatibility issues.

Compliance Status: The Crouzet 831607B6.E is RoHS Compliant and REACH Unaffected, meeting current regulatory requirements. The original Panasonic part carries no specified compliance status due to its obsolete status.

Availability: The Crouzet substitute is listed as Active product status with current inventory, ensuring procurement reliability for replacement and new applications.

Temperature Consideration: Operating temperature ranges differ slightly. The original part operates from -25°C to 105°C, while the substitute operates from -40°C to 85°C. Applications requiring operation above 85°C or below -40°C must be evaluated against actual system requirements.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 831607B6.E directly replace the AM50655C33-A in existing assemblies?

A: Yes. Both switches share identical circuit configuration, switch function, actuator type, mounting method, and termination style. Physical and electrical compatibility is confirmed. No circuit modifications are required.

Q: Why does the Crouzet substitute have a higher voltage rating (250V vs. 125V)?

A: Higher voltage ratings indicate greater electrical stress capability and do not compromise compatibility with lower-voltage applications. The 250V rating of the Crouzet switch provides additional operational margin when used in 125V circuits.

Q: Are there differences in operating temperature ranges between these switches?

A: Yes. The AM50655C33-A operates from -25°C to 105°C, while the Crouzet 831607B6.E operates from -40°C to 85°C. The overlap range is -25°C to 85°C. Applications requiring operation above 85°C must use the original Panasonic part or identify alternative solutions.

Q: What is the significance of the Crouzet part being RoHS Compliant?

A: RoHS Compliance indicates the substitute meets current environmental and regulatory standards for restricted hazardous substances. This is relevant for new designs and applications subject to modern compliance requirements.

Q: Are the quick-connect terminations identical between both switches?

A: Yes. Both switches use Quick Connect - 0.187" (4.7mm) termination, ensuring direct compatibility with existing connector systems and wiring harnesses.

Q: What is the electrical life rating, and is it the same for both switches?

A: Both switches are rated for 100,000 electrical cycles, indicating equivalent durability under normal switching operations.

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