A3PT-90A12-24SW Equivalent & Substitute Parts

Part Overview

The A3PT-90A12-24SW is an Omron Automation and Safety pushbutton switch with SPDT circuit configuration, rated for 5A at 125V AC and 4A at 30V DC. This component features illuminated panel mount design with amber LED illumination at 24 VAC/DC nominal voltage. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this specification remains applicable.

Substiute Parts

A3PT-90A12-24SW

Omron Automation and SafetyIn Stock: 873A3PT-90A12-24SW Datasheet

Current PartRFQ

A3PT-90A12-24CW

Omron Automation and SafetyIn Stock: 705A3PT-90A12-24CW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A3PT-90A12-24SW is determined by strict equivalence across the following critical parameters:

• Circuit configuration: SPDT
• Current ratings: 5A AC / 4A DC minimum
• Voltage ratings: 125V AC / 30V DC minimum
• Mounting interface: Panel Mount, Snap-In with 29.00mm circular cutout
• Termination: Solder and Quick Connect 0.110" (2.8mm)
• Ingress protection: IP40
• Mechanical and electrical life specifications
• Illumination voltage compatibility: 24V nominal

The A3PT-90A12-24CW qualifies as a direct substitute based on these parameters. Differences in illumination color (amber to white) and illumination voltage specification (24 VAC/DC to 24 VDC) do not affect functional substitution where the electrical and mechanical interfaces remain identical.

Parameter Comparison

Engineering Selection Recommendations

The A3PT-90A12-24CW is the manufacturer-recommended substitute for the obsolete A3PT-90A12-24SW. Both components maintain identical electrical and mechanical specifications across all critical parameters: SPDT circuit, 5A AC / 4A DC current ratings, 125V AC / 30V DC voltage ratings, and panel mount interface with 29.00mm cutout diameter.

The substitute part carries active product status, ensuring continued availability and supply chain reliability. The operating temperature range of the substitute extends to 40°C versus 50°C on the original part; applications requiring operation above 40°C require evaluation against specific system requirements.

Illumination color change from amber to white and illumination voltage specification change from 24 VAC/DC to 24 VDC are non-critical differences that do not affect electrical or mechanical compatibility in standard applications.

Frequently Asked Questions (FAQ)

Q: Can the A3PT-90A12-24CW directly replace the A3PT-90A12-24SW in existing assemblies?

A: Yes. Both parts share identical circuit configuration (SPDT), current ratings (5A AC / 4A DC), voltage ratings (125V AC / 30V DC), mounting interface (Panel Mount, Snap-In with 29.00mm cutout), and termination style (Solder and Quick Connect 0.110"). Physical and electrical compatibility is maintained.

Q: What is the difference in illumination specifications between these parts?

A: The main part features amber LED illumination at 24 VAC/DC nominal voltage. The substitute features white LED illumination at 24 VDC nominal voltage. Both operate at 24V nominal, with the substitute accepting DC voltage only rather than both AC and DC.

Q: Are there operating temperature considerations for substitution?

A: The main part operates from -10°C to 50°C. The substitute operates from -10°C to 40°C. Applications requiring operation above 40°C should be evaluated against specific system thermal requirements before substitution.

Q: Do both parts use the same panel cutout dimensions?

A: Yes. Both parts require a circular panel cutout of 29.00mm diameter and use identical snap-in mounting mechanisms.

Q: What is the product status difference between these parts?

A: The A3PT-90A12-24SW is classified as obsolete. The A3PT-90A12-24CW is active production status, ensuring ongoing availability and supply chain support.