M2015SD3W01 Equivalent & Substitute Parts

Part Overview

The M2015SD3W01 is a toggle switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with panel mount installation. This component is rated for 6A AC at 125V and 3A DC at 30V, with a standard round actuator and solder lug termination. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where legacy component specifications must be maintained.

Substiute Parts

M2015SD3W01

NKK SwitchesIn Stock: 1170M2015SD3W01 Datasheet

Current PartRFQ

A126S1CWZQ

ElectroswitchIn Stock: 920A126S1CWZQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M2015SD3W01 is determined by strict alignment with the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must be SPDT
• Switch function must be On-Mom
• AC current rating must be minimum 6A at 125V
• DC current rating must be minimum 3A at 30V
• AC voltage rating must be minimum 125V
• DC voltage rating must be minimum 30V

Mechanical Compatibility Requirements:

• Mounting type must be Panel Mount
• Actuator type must be Standard Round
• Actuator length must be within acceptable tolerance of 10.50mm
• Termination style must be Solder Lug
• Bushing thread must be 1/4-40
• Panel cutout dimensions must accommodate circular 6.50mm diameter opening

Environmental & Regulatory Requirements:

• Operating temperature range must encompass -30°C to 85°C
• Ingress protection must be IP67 or equivalent
• RoHS compliance status must be ROHS3 or equivalent

The substitute part A126S1CWZQ meets these criteria with the following considerations: it maintains SPDT circuit configuration and On-Mom function, supports 6A AC/DC at 125V with 28V DC rating, features identical panel mount and solder lug termination, and maintains 1/4-40 bushing thread specification. The actuator length of 10.41mm is within acceptable mechanical tolerance of the original 10.50mm specification.

Parameter Comparison

Engineering Selection Recommendations

The A126S1CWZQ from Electroswitch qualifies as a functional equivalent for the obsolete M2015SD3W01. Selection should be based on the following documented factors:

Product Status Consideration: The M2015SD3W01 is classified as obsolete, while the A126S1CWZQ maintains active product status with documented inventory availability (879 pieces in stock). This status difference supports long-term supply chain continuity.

Electrical Performance: The A126S1CWZQ meets or exceeds all specified electrical parameters. DC current rating of 6A exceeds the original 3A requirement. DC voltage rating of 28V is within acceptable tolerance of the 30V specification. AC ratings match exactly at 6A and 125V.

Mechanical Compatibility: Panel mount configuration, solder lug termination, 1/4-40 bushing thread, and standard round actuator type are identical. Actuator length variance of 0.09mm (10.41mm versus 10.50mm) is within typical mechanical tolerance for panel-mounted toggle switches.

Regulatory Compliance: The M2015SD3W01 carries ROHS3 compliance certification. RoHS compliance status for the A126S1CWZQ is not specified in available documentation and should be verified through the manufacturer if regulatory compliance is a system requirement.

Electrical Life: The A126S1CWZQ provides 60,000 electrical life cycles, exceeding the original 25,000 cycle specification by 140 percent, indicating enhanced durability for extended operational applications.

Frequently Asked Questions (FAQ)

Q: Can the A126S1CWZQ directly replace the M2015SD3W01 in existing assemblies?

A: The A126S1CWZQ is mechanically and electrically compatible for direct substitution in panel mount applications. The 0.09mm actuator length difference and 2V DC voltage rating variance are within acceptable tolerances for standard toggle switch installations. Verification of RoHS compliance requirements is necessary if regulatory documentation is mandated for your application.

Q: What is the significance of the On-Mom switch function designation?

A: On-Mom (On-Momentary) indicates the switch maintains one stable position while the alternate position is momentary, returning to the stable position when released. Both the M2015SD3W01 and A126S1CWZQ share this identical function, ensuring behavioral compatibility in circuit applications.

Q: Why is the DC voltage rating of 28V acceptable when the original specification is 30V?

A: A 2V variance (6.7 percent) in DC voltage rating falls within standard engineering tolerance for switch component specifications. This margin does not compromise safety or performance in applications operating at or below 28V DC. Applications requiring operation at 29-30V DC should be evaluated against actual circuit requirements.

Q: Does the higher electrical life rating of the A126S1CWZQ affect compatibility?

A: Higher electrical life rating (60,000 cycles versus 25,000 cycles) indicates enhanced component durability and does not create compatibility issues. This represents an improvement in component longevity and reliability for the substitution.

Q: What documentation should be reviewed before implementing the A126S1CWZQ substitution?

A: Verify RoHS compliance certification status with Electroswitch if regulatory compliance documentation is required for your application. Confirm that the 28V DC rating meets your circuit's maximum operating voltage. Validate that panel cutout dimensions and bushing thread specifications align with existing mechanical installations.

Q: Are there any packaging differences between the M2015SD3W01 and A126S1CWZQ?

A: The M2015SD3W01 packaging specification is not documented in available data. The A126S1CWZQ is supplied in bulk packaging. Confirm packaging requirements for your procurement and assembly processes before finalizing substitution.