AV31049 Equivalent & Substitute Parts Reference

Part Overview

The Panasonic Electric Works AV31049 is a snap-action SPDT switch designed for chassis mount applications with a 3A/125V AC rating and round pin plunger actuator. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing maintenance, repair, and new design implementations where this functionality is required.

Substiute Parts

AV31049

Panasonic Electric WorksIn Stock: 893AV31049 Datasheet

Current PartRFQ

311SM730-T2

Honeywell Sensing and Productivity SolutionsIn Stock: 1220311SM730-T2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AV31049 is determined by the following critical parameters:

• Circuit Configuration: Must be SPDT (Single Pole Double Throw)
• Switch Function: Must be On-Momentary operation
• Mounting Type: Must be Chassis Mount
• Current Rating: Minimum 3A at rated voltage
• Voltage Rating - AC: Minimum 125V AC capability
• Voltage Rating - DC: Minimum 30V DC capability
• Termination Style: Solder connection methods (Lug or Turret acceptable)

The Honeywell Sensing and Productivity Solutions 311SM730-T2 meets these substitution criteria with enhanced electrical ratings (4A AC / 5A DC at 250V AC) and superior mechanical life specifications, making it a direct functional equivalent for the obsolete AV31049.

Parameter Comparison

Engineering Selection Recommendations

The 311SM730-T2 is the qualified substitute for the obsolete AV31049 based on the following factors:

• Functional Equivalence: Both components provide identical SPDT circuit configuration and On-Momentary switch function required for direct replacement applications.
• Electrical Compatibility: The 311SM730-T2 exceeds the minimum electrical requirements of the AV31049 with higher current ratings (4A AC / 5A DC versus 3A) and voltage capability (250V AC versus 125V AC), ensuring safe operation in existing circuits.
• Active Product Status: The 311SM730-T2 is classified as Active, providing long-term availability and supply chain continuity compared to the obsolete AV31049.
• Compliance: Both components carry EAR99 ECCN classification and share identical HTSUS coding (8536.50.7000), confirming regulatory alignment.
• Moisture Sensitivity: Both components are rated MSL 1 (Unlimited), indicating equivalent environmental handling requirements.

Physical integration requires verification of actuator type differences (round pin plunger versus lever straight) and termination method compatibility (solder lug versus solder turret) within the target application's mechanical and electrical interface design.

Frequently Asked Questions (FAQ)

Q: Can the 311SM730-T2 directly replace the AV31049 without circuit modification?

A: The 311SM730-T2 meets all electrical substitution criteria (SPDT circuit, On-Momentary function, 3A minimum current, 125V AC minimum voltage, 30V DC). However, mechanical integration requires verification of actuator type (lever versus pin plunger) and termination method (solder turret versus solder lug) compatibility with the existing PCB or chassis design.

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

A: The primary differences are actuator geometry (round pin plunger versus lever straight), termination method (solder lug versus solder turret), and enhanced performance specifications in the 311SM730-T2 (higher current ratings, extended temperature range, superior mechanical life). Both maintain identical DC voltage rating (30V) and SPDT circuit configuration.

Q: Is the 311SM730-T2 suitable for applications originally designed for the AV31049?

A: Yes, provided the application's mechanical interface accommodates the lever actuator and solder turret termination. The 311SM730-T2's higher electrical ratings ensure safe operation in circuits designed for the AV31049's 3A/125V specifications.

Q: What is the significance of the product status difference?

A: The AV31049 is obsolete, meaning Panasonic Electric Works no longer manufactures or supports this component. The 311SM730-T2 is Active, ensuring continued availability, technical support, and supply chain reliability for new designs and ongoing production requirements.

Q: Are there packaging or moisture sensitivity considerations for substitution?

A: Both components carry MSL 1 (Unlimited) moisture sensitivity rating, indicating identical environmental handling and storage requirements. Packaging specifications should be verified with the supplier for specific application requirements.