Omron A3SJ-90D1-05SW Pushbutton Switch - Equivalent & Substitute Parts

Part Overview

The Omron A3SJ-90D1-05SW is a DPDT illuminated pushbutton switch designed for panel mount, snap-in applications. This component features a rectangular white button actuator with white LED illumination, rated for 3A AC at 125V and 2A DC at 30V. The part is classified as obsolete, making identification of active equivalent models essential for procurement and system continuity.

Substiute Parts

A3SJ-90D1-05SW

Omron Automation and SafetyIn Stock: 950A3SJ-90D1-05SW Datasheet

Current PartRFQ

A3SJ-90D1-05EW

Omron Automation and SafetyIn Stock: 905A3SJ-90D1-05EW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the A3SJ-90D1-05SW is determined by strict equivalence across the following critical parameters:

• Circuit configuration (DPDT)
• Switch function (On-On)
• Current and voltage ratings (3A AC / 125V, 2A DC / 30V)
• Mounting type (Panel Mount, Snap-In)
• Illumination specifications (LED, White, 5 VDC)
• Termination style (Quick Connect - 0.110")
• Panel cutout dimensions (22.40mm x 16.20mm)
• Operating temperature range (-10°C to 50°C)
• Mechanical and electrical life (100,000 cycles each)

The substitute part must maintain identical electrical performance, mechanical interface, and illumination characteristics to ensure direct replacement without circuit or mechanical modifications.

Parameter Comparison

Engineering Selection Recommendations

The A3SJ-90D1-05EW is the direct equivalent substitute for the obsolete A3SJ-90D1-05SW. Both components are manufactured by Omron Automation and Safety within the A3S series and maintain identical electrical specifications, mechanical interfaces, and illumination characteristics.

The primary distinction is product status: the A3SJ-90D1-05SW is obsolete, while the A3SJ-90D1-05EW is active. For new designs, system upgrades, or component replacement in existing applications, the A3SJ-90D1-05EW provides continuity of supply and performance without requiring circuit or mechanical redesign.

Frequently Asked Questions (FAQ)

Q: Can the A3SJ-90D1-05EW be used as a direct replacement for the A3SJ-90D1-05SW?

A: Yes. Both components share identical electrical ratings (3A AC / 125V, 2A DC / 30V), circuit configuration (DPDT), illumination specifications (LED, White, 5 VDC), mechanical interface (Panel Mount, Snap-In), and termination style (Quick Connect - 0.110"). No circuit or mechanical modifications are required.

Q: What is the difference between these two part numbers?

A: The A3SJ-90D1-05EW is the active production equivalent of the obsolete A3SJ-90D1-05SW. All functional and mechanical parameters are identical.

Q: Are the panel cutout dimensions the same?

A: Yes. Both components require a rectangular panel cutout of 22.40mm x 16.20mm, ensuring mechanical compatibility in existing panel designs.

Q: Do both switches support the same illumination voltage?

A: Yes. Both components operate with 5 VDC illumination voltage and feature white LED illumination.

Q: What is the operating temperature range for these switches?

A: Both the A3SJ-90D1-05SW and A3SJ-90D1-05EW operate within the range of -10°C to 50°C.