AM50643D33-A Equivalent & Substitute Parts

Part Overview

The AM50643D33-A is a snap action SPDT switch manufactured by Panasonic Electric Works, designed for chassis mount applications with quick connect termination. This component operates at 6A AC (500mA DC) and 125V, featuring a straight lever actuator with on-momentary switch function. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system redesign, repair, and procurement planning.

Substiute Parts

AM50643D33-A

Panasonic Electric WorksIn Stock: 888AM50643D33-A Datasheet

Current PartRFQ

831616C3.BB

CrouzetIn Stock: 805831616C3.BB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AM50643D33-A requires matching the following critical parameters:

• Circuit configuration: SPDT topology
• Switch function: On-momentary operation
• Mounting interface: Chassis mount with quick connect 0.250" (6.3mm) termination
• Actuator style: Straight lever
• Environmental rating: Operating temperature range compatibility

The Crouzet 831616C3.BB satisfies these core functional requirements. While it provides higher current capacity (12A AC versus 6A AC) and voltage rating (250V AC versus 125V AC), these represent performance enhancements rather than incompatibilities. The substitute maintains identical circuit topology, switch function, mounting configuration, and termination style. Both components feature unlimited moisture sensitivity level (MSL 1) and REACH unaffected status.

Parameter Comparison

Engineering Selection Recommendations

The Crouzet 831616C3.BB is a direct functional substitute for the obsolete AM50643D33-A. Both components share identical circuit topology (SPDT), switch function (on-momentary), mounting configuration (chassis mount), and termination interface (quick connect 0.250" 6.3mm).

The Crouzet part offers performance advantages: higher current capacity (12A AC), higher voltage rating (250V AC), and extended upper operating temperature limit (125°C versus 105°C). These characteristics ensure compatibility with the original application while providing operational margin.

The Crouzet 831616C3.BB holds active product status with RoHS compliance certification, supporting long-term supply chain continuity. Both components maintain REACH unaffected status and unlimited moisture sensitivity rating (MSL 1), ensuring regulatory alignment.

The mechanical life specification differs (50,000 cycles for Crouzet versus 10,000,000 cycles for Panasonic). Application-specific cycle requirements should be evaluated against this parameter.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 831616C3.BB directly replace the AM50643D33-A in existing designs?

A: Yes. Both components feature identical SPDT circuit configuration, on-momentary switch function, straight lever actuator, chassis mount configuration, and 0.250" (6.3mm) quick connect termination. Physical and electrical interfaces are compatible.

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

A: The Crouzet part provides higher current capacity (12A AC versus 6A AC), higher voltage rating (250V AC versus 125V AC), and extended upper operating temperature (125°C versus 105°C). The Panasonic part specifies higher mechanical life (10,000,000 cycles versus 50,000 cycles).

Q: Is the higher current and voltage rating of the Crouzet part a concern for the original application?

A: No. Higher ratings represent performance enhancements. If the original application operated at 6A and 125V, the Crouzet part will operate safely at these levels with additional capacity margin.

Q: Are there compliance or certification differences?

A: The Crouzet 831616C3.BB carries RoHS compliance certification. Both components are REACH unaffected and maintain MSL 1 (unlimited) moisture sensitivity rating.

Q: What should be considered regarding mechanical life specifications?

A: The Panasonic part specifies 10,000,000 mechanical cycles versus 50,000 cycles for the Crouzet part. Applications requiring high cycle counts should evaluate this parameter against actual operational requirements.

Q: Are both parts currently available?

A: The AM50643D33-A is obsolete. The Crouzet 831616C3.BB maintains active product status with current inventory availability.