AV31029 Equivalent & Substitute Parts

Part Overview

The Panasonic Electric Works AV31029 is a snap action SPDT switch with chassis mount configuration, rated for 3A at 125V AC and 30V DC. This component features a round pin plunger actuator and solder lug termination, designed for on-momentary switching applications. The AV31029 is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where this series is no longer available.

Substiute Parts

AV31029

Panasonic Electric WorksIn Stock: 661AV31029 Datasheet

Current PartRFQ

311SM730-T2

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

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the AV31029 is determined by the following critical parameters:

Circuit and Function Compatibility: The substitute must maintain SPDT configuration with on-momentary switching function to preserve circuit behavior in the target application.

Electrical Ratings: The substitute must support minimum current and voltage specifications. The AV31029 operates at 3A AC/125V AC and 3A DC/30V DC. Acceptable substitutes must meet or exceed these ratings across both AC and DC domains.

Mechanical Interface: Chassis mount configuration is required. Actuator type and termination style may vary provided the physical mounting footprint and electrical connection method are compatible with the existing PCB or panel layout.

Operating Environment: Temperature range compatibility (-25°C to 85°C minimum) ensures reliable operation across the intended application environment.

Product Availability: Active product status with current manufacturing ensures long-term supply chain reliability and technical support.

Parameter Comparison

Engineering Selection Recommendations

The Honeywell Sensing and Productivity Solutions 311SM730-T2 qualifies as a functional equivalent for the obsolete Panasonic AV31029 based on the following criteria:

Electrical Equivalence: The 311SM730-T2 meets all minimum electrical requirements with superior current and voltage ratings. The 4A AC/250V AC and 5A DC/30V DC specifications exceed the AV31029 requirements, providing design margin in electrical performance.

Circuit Topology: Both components implement identical SPDT on-momentary switching logic, ensuring functional compatibility at the circuit level.

Mechanical Mounting: Both components feature chassis mount configuration, supporting direct integration into existing panel or PCB layouts.

Product Lifecycle Status: The 311SM730-T2 maintains active manufacturing status with established supply chain availability, addressing the obsolescence of the AV31029.

Compliance and Certification: The 311SM730-T2 carries RoHS Compliant status, meeting modern regulatory requirements. Both components share EAR99 ECCN classification and unlimited MSL rating.

Physical Interface Considerations: The actuator type (lever vs. pin plunger) and termination style (solder turret vs. solder lug) differ between components. Physical mounting footprint and electrical connection compatibility must be verified against the specific application layout before implementation.

Frequently Asked Questions (FAQ)

Q: Can the 311SM730-T2 directly replace the AV31029 without circuit modifications?

A: The 311SM730-T2 provides electrical equivalence for SPDT on-momentary switching. However, physical mounting footprint and actuator geometry differ. Mechanical compatibility with the existing panel or PCB mounting interface must be confirmed. Termination method differences (solder turret vs. solder lug) may require connection method adjustment.

Q: What are the key electrical differences between these components?

A: The 311SM730-T2 exceeds AV31029 specifications in current capacity (4A AC vs. 3A AC) and AC voltage rating (250V vs. 125V). DC voltage rating remains equivalent at 30V. These higher ratings provide design margin but do not affect functional compatibility for applications within AV31029 specifications.

Q: Are there mechanical constraints to substitution?

A: Yes. The AV31029 uses a round pin plunger actuator with solder lug termination. The 311SM730-T2 employs a straight lever actuator with solder turret termination. Physical mounting dimensions, actuator engagement geometry, and electrical connection method must be evaluated for the specific application before substitution.

Q: Does the 311SM730-T2 meet current regulatory requirements?

A: The 311SM730-T2 carries RoHS Compliant certification, meeting current environmental and safety standards. The AV31029, as an obsolete component, may not meet modern regulatory requirements for new designs.

Q: What is the operating temperature difference between these components?

A: The AV31029 operates from -25°C to 85°C. The 311SM730-T2 operates from -55°C to 125°C, providing extended temperature range capability suitable for broader environmental applications.

Q: Are there differences in mechanical life ratings?

A: The AV31029 specifies 500,000 mechanical cycles. The 311SM730-T2 specifies 10,000,000 mechanical cycles, indicating significantly higher durability for extended-life applications.