AM50665C33-A Equivalent & Substitute Parts

Part Overview

The AM50665C33-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 and quick connect 0.187" termination. The product is currently obsolete, making identification of equivalent and substitute parts essential for system maintenance, repair, and redesign applications.

Substiute Parts

AM50665C33-A

Panasonic Electric WorksIn Stock: 1037AM50665C33-A Datasheet

Current PartRFQ

LS085R105F250C1C

E-SwitchIn Stock: 1105LS085R105F250C1C Datasheet

SimilarRFQ

TMCGD6VA2040Y

C&KIn Stock: 1043TMCGD6VA2040Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM50665C33-A is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPST-NO
• Switch function must be Off-Mom (momentary)
• Actuator type must be Lever, Roller
• Mounting type must be Chassis Mount
• Termination style must be Quick Connect - 0.187" (4.7mm)

Electrical Performance Criteria:

• Current rating must meet or exceed 6A at 125V AC
• Voltage rating must be rated for 125V AC minimum
• Operating temperature range must encompass the application environment

Mechanical Criteria:

• Operating position tolerance must be compatible with mechanical envelope constraints
• Pretravel and differential travel specifications must be acceptable for the control circuit

Two substitute parts meet these criteria with varying performance characteristics and product status conditions.

Parameter Comparison

Engineering Selection Recommendations

TMCGD6VA2040Y (C&K) - Primary Substitute

The TMCGD6VA2040Y is the preferred substitute for the AM50665C33-A. This part maintains electrical equivalence with 10A @ 125V AC rating, exceeding the original 6A specification. The C&K switch shares identical voltage ratings, termination style, and mechanical envelope (operating position 0.812" vs. 0.815"). The product is currently active with ROHS3 compliance and REACH unaffected status, ensuring long-term availability and regulatory alignment. Operating temperature range extends to 150°C, providing superior thermal performance. Electrical life of 350,000 cycles exceeds the original specification.

LS085R105F250C1C (E-Switch) - Limited Compatibility

The LS085R105F250C1C does not meet electrical requirements for direct substitution. Voltage rating of 20V AC/DC is insufficient for 125V applications. Current rating of 0.4VA is substantially below the 6A requirement. Operating temperature maximum of 85°C is lower than the original specification. This part is suitable only for low-voltage, low-current applications and should not be selected as a substitute for the AM50665C33-A in standard 125V circuits.

Frequently Asked Questions (FAQ)

Q: Can the TMCGD6VA2040Y directly replace the AM50665C33-A without circuit modification?

A: Yes. The TMCGD6VA2040Y maintains electrical and mechanical compatibility. Both switches are SPST-NO momentary devices with identical 125V AC/DC ratings, 0.187" quick connect termination, and equivalent operating positions. The higher current rating (10A vs. 6A) and extended electrical life provide enhanced performance margins.

Q: Why is the LS085R105F250C1C not recommended as a substitute?

A: The LS085R105F250C1C operates at 20V AC/DC maximum, which is incompatible with 125V circuits. The 0.4VA rating cannot support 6A loads. This part is designed for low-voltage control applications and does not meet the electrical requirements of the original specification.

Q: What are the mechanical differences between the AM50665C33-A and TMCGD6VA2040Y?

A: Operating positions are nearly identical (0.815" vs. 0.812"). Operating force differs slightly (60gf vs. 50gf), and release force is equivalent (10gf). Pretravel is longer on the C&K part (0.140" vs. 0.063"), which may affect response characteristics in sensitive control circuits. Differential travel and overtravel specifications differ but remain within typical mechanical switch tolerances.

Q: Are there compliance or regulatory considerations for substitution?

A: The TMCGD6VA2040Y carries ROHS3 compliance and REACH unaffected status, meeting current environmental regulations. The original AM50665C33-A compliance status is not specified. If regulatory compliance is required for your application, the C&K substitute provides documented certification.

Q: What is the impact of the extended operating temperature range on the C&K substitute?

A: The TMCGD6VA2040Y operates from -55°C to 150°C, compared to the original -25°C to 105°C range. This extended range provides greater flexibility for applications in extreme thermal environments but does not affect compatibility in standard temperature conditions.