Omron A3SJ-90B1-24SW Equivalent & Substitute Parts

Part Overview

The Omron A3SJ-90B1-24SW is a pushbutton switch with SPDT (Single Pole Double Throw) configuration, designed for panel-mount, snap-in installation with LED illumination. This component operates at 125V AC / 30V DC with a 3A AC / 2A DC current rating and features amber LED illumination at 24 VAC/DC nominal voltage.

The A3SJ-90B1-24SW is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain system functionality and ensure continued availability for replacement, repair, and new installations where this legacy component is specified.

Substiute Parts

A3SJ-90B1-24SW

Omron Automation and SafetyIn Stock: 1224A3SJ-90B1-24SW Datasheet

Current PartRFQ

A3SJ-90B1-24EW

Omron Automation and SafetyIn Stock: 906A3SJ-90B1-24EW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the A3SJ-90B1-24SW is determined by the following critical parameters:

• Circuit Configuration: SPDT topology must be maintained
• Current and Voltage Ratings: AC 3A @ 125V and DC 2A @ 30V minimum
• Illumination Specifications: LED illumination at 24 VAC/DC nominal voltage
• Mounting and Termination: Panel mount, snap-in installation with quick connect 0.110" (2.8mm) terminals
• Mechanical and Electrical Life: 100,000 cycles minimum
• Panel Cutout Compatibility: Rectangular 22.40mm x 16.20mm opening

The substitute part A3SJ-90B1-24EW is classified as an Omron manufacturer-recommended equivalent within the A3S series base product family. This substitute maintains electrical and mechanical compatibility with the obsolete A3SJ-90B1-24SW.

Parameter Comparison

Engineering Selection Recommendations

The A3SJ-90B1-24EW is the Omron manufacturer-recommended substitute for the obsolete A3SJ-90B1-24SW. Both components share the same base product number (A3SJ) and are classified under identical tariff and export control codes (HTSUS 8536.50.9033, ECCN EAR99), indicating functional and regulatory equivalence.

The primary distinction is product status: the A3SJ-90B1-24SW is obsolete, while the A3SJ-90B1-24EW is active in production. Selection of the active substitute ensures long-term availability and supply chain continuity.

Both components are RoHS compliant, supporting environmental and regulatory compliance requirements in industrial control applications.

Frequently Asked Questions (FAQ)

Q: Can the A3SJ-90B1-24EW directly replace the A3SJ-90B1-24SW in existing installations?

A: Yes. Both components are members of the A3S series and share the same base product number. They are classified under identical tariff codes and export control designations, confirming functional equivalence. The A3SJ-90B1-24EW is the active production equivalent of the obsolete A3SJ-90B1-24SW.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by SPDT circuit configuration, AC 3A @ 125V / DC 2A @ 30V electrical ratings, 24 VAC/DC LED illumination, panel mount snap-in mounting with 0.110" (2.8mm) quick connect terminals, and rectangular 22.40mm x 16.20mm panel cutout dimensions.

Q: Are there any packaging or inventory considerations?

A: Both the A3SJ-90B1-24SW and A3SJ-90B1-24EW are supplied in bulk packaging. The A3SJ-90B1-24SW has 1114 pieces in stock (obsolete status), while the A3SJ-90B1-24EW has 877 pieces in stock (active status). For new designs and long-term applications, the active A3SJ-90B1-24EW is the recommended selection.

Q: Do both parts meet RoHS compliance requirements?

A: The A3SJ-90B1-24SW is confirmed RoHS compliant. RoHS status for the A3SJ-90B1-24EW is not specified in the provided technical data. Verification with the manufacturer is recommended if RoHS compliance is a mandatory requirement for your application.