A3SA-90C1-12SW Equivalent & Substitute Parts

Part Overview

The A3SA-90C1-12SW is an Omron Automation and Safety pushbutton switch featuring DPDT (Double Pole Double Throw) circuitry with illuminated panel mount design. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing maintenance, repair, and new design applications where equivalent functionality is required.

Key Parameters

Parameter	Value
Manufacturer Part Number	A3SA-90C1-12SW
Manufacturer	Omron Automation and Safety
Series	A3S
Circuit Configuration	DPDT
Switch Type	Standard, Illuminated
Current Rating (AC)	3A
Current Rating (DC)	2A
Voltage Rating (AC)	125V
Voltage Rating (DC)	30V
Illumination Type	LED, White
Illumination Voltage	12 VAC/DC
Mounting Type	Panel Mount, Snap-In
Actuator Type	Square, Button
Actuator Color	White
Termination Style	Quick Connect - 0.110" (2.8mm)
Panel Cutout Dimensions	Square - 16.20mm x 16.20mm
Ingress Protection	IP00
Operating Temperature Range	-10°C to 50°C
Mechanical Life	1,000,000 Cycles
Electrical Life	100,000 Cycles
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the A3SA-90C1-12SW is determined by strict alignment with the following critical parameters:

Circuit Configuration: DPDT switching capability
Current and Voltage Ratings: 3A AC / 125V AC and 2A DC / 30V DC minimum
Illumination Specifications: LED illumination at 12 VAC/DC nominal voltage
Mounting and Mechanical Interface: Panel mount snap-in design with 16.20mm x 16.20mm square cutout
Termination: Quick Connect 0.110" (2.8mm) terminals
Actuator Characteristics: Square button actuator, white color
Environmental Performance: Operating temperature range -10°C to 50°C, mechanical life of 1,000,000 cycles minimum

The A3SA-90C1-12EW qualifies as a direct substitute based on shared series lineage (A3S family), identical electrical specifications, and compatible mechanical interface requirements.

Parameter Comparison

Parameter	A3SA-90C1-12SW (Main Part)	A3SA-90C1-12EW (Substitute)
Manufacturer	Omron Automation and Safety	Omron Automation and Safety
Series	A3S	A3S
Circuit Configuration	DPDT	DPDT
Current Rating (AC)	3A	3A
Current Rating (DC)	2A	2A
Voltage Rating (AC)	125V	125V
Voltage Rating (DC)	30V	30V
Illumination Type	LED, White	LED, White
Illumination Voltage	12 VAC/DC	12 VAC/DC
Mounting Type	Panel Mount, Snap-In	Panel Mount, Snap-In
Termination Style	Quick Connect - 0.110" (2.8mm)	Quick Connect - 0.110" (2.8mm)
Panel Cutout Dimensions	Square - 16.20mm x 16.20mm	Square - 16.20mm x 16.20mm
Operating Temperature Range	-10°C to 50°C	-10°C to 50°C
Mechanical Life	1,000,000 Cycles	1,000,000 Cycles
Electrical Life	100,000 Cycles	100,000 Cycles
Product Status	Obsolete	Active

Engineering Selection Recommendations

The A3SA-90C1-12EW is the designated substitute for the obsolete A3SA-90C1-12SW. This substitution is supported by:

Electrical Equivalence: Identical DPDT circuit configuration, current ratings (3A AC / 2A DC), and voltage ratings (125V AC / 30V DC)
Mechanical Compatibility: Matching panel mount snap-in interface, 16.20mm x 16.20mm cutout dimensions, and Quick Connect 0.110" (2.8mm) termination
Functional Parity: Identical LED illumination specifications at 12 VAC/DC nominal voltage with white actuator
Product Status Advantage: The A3SA-90C1-12EW maintains active product status, ensuring ongoing availability and support from Omron Automation and Safety
Compliance Documentation: The substitute part carries ECCN EAR99 and HTSUS 8536.50.9031 classifications

Direct substitution is appropriate for applications requiring DPDT pushbutton switch functionality with illuminated panel mount design and the specified electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can the A3SA-90C1-12EW be used as a direct replacement for the A3SA-90C1-12SW?

A: Yes. Both components share identical electrical specifications (DPDT, 3A AC / 2A DC, 125V AC / 30V DC), illumination characteristics (LED, white, 12 VAC/DC), and mechanical interface (panel mount snap-in, 16.20mm x 16.20mm cutout, Quick Connect 0.110" terminals). The A3SA-90C1-12EW is the active production equivalent.

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

A: The A3SA-90C1-12SW is classified as obsolete, while the A3SA-90C1-12EW maintains active product status. Both components are functionally and mechanically equivalent.

Q: Are there any packaging differences between the main part and substitute?

A: The A3SA-90C1-12SW is supplied with standard packaging, while the A3SA-90C1-12EW is supplied in bulk packaging. This distinction does not affect component functionality or electrical performance.

Q: What electrical parameters must be matched for substitution?

A: Critical electrical parameters include DPDT circuit configuration, 3A AC current rating at 125V AC, 2A DC current rating at 30V DC, and 12 VAC/DC illumination voltage. Any deviation from these specifications disqualifies a component as a direct substitute.

Q: Are the mechanical interfaces identical?

A: Yes. Both components feature panel mount snap-in mounting, 16.20mm x 16.20mm square cutout dimensions, and Quick Connect 0.110" (2.8mm) termination. No mechanical modifications are required for substitution.

Q: What is the operational temperature range for both components?

A: Both the A3SA-90C1-12SW and A3SA-90C1-12EW operate within the temperature range of -10°C to 50°C.

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