M2018TYG01-JA Equivalent & Substitute Parts

Part Overview

The M2018TYG01-JA is a rocker switch manufactured by NKK Switches, classified as SPDT (Single Pole Double Throw) with a momentary-off-momentary (Mom-Off-Mom) switch function. This component is rated for 0.4VA at 28V AC/DC operation and is designed for panel mount applications with a flange configuration. The product is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing maintenance, repair, and system continuity in applications where this switch was originally specified.

Substiute Parts

M2018TYG01-JA

NKK SwitchesIn Stock: 1033M2018TYG01-JA Datasheet

Current PartRFQ

B127J3ZQ2

ElectroswitchIn Stock: 1153B127J3ZQ2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M2018TYG01-JA is determined by the following critical parameters:

• Circuit Configuration: SPDT topology must be maintained for functional equivalence
• Switch Function: Mom-Off-Mom operation is required for control logic compatibility
• Voltage Compatibility: The substitute must support at minimum the 28V AC/DC rating of the original part
• Current Capacity: The substitute must handle the 0.4VA load requirement
• Mounting Interface: Panel mount with flange configuration and compatible panel cutout dimensions ensure mechanical fit
• Actuator Type: Concave (Standard V) actuator ensures operational consistency
• Termination Style: Connection method must be compatible with existing circuit board or wiring harness
• Environmental Compliance: RoHS and regulatory certifications (CSA, UL) ensure compliance with applicable standards

The B127J3ZQ2 manufactured by Electroswitch meets these substitution criteria. While this part exceeds the original specifications in current rating (6A versus 0.4VA) and AC voltage rating (125V versus 28V), it maintains functional equivalence through identical circuit configuration, switch function, actuator type, and mounting interface. The higher electrical ratings provide backward compatibility without compromising system performance.

Parameter Comparison

Engineering Selection Recommendations

The B127J3ZQ2 is the identified equivalent substitute for the obsolete M2018TYG01-JA. Selection of this substitute is supported by the following engineering factors:

Functional Equivalence: Both parts maintain identical SPDT circuit configuration and Mom-Off-Mom switch function, ensuring direct functional replacement in control applications.

Electrical Compatibility: The B127J3ZQ2 exceeds the original voltage and current specifications, providing backward compatibility. The 28V DC rating matches the original requirement, while the 125V AC rating and 6A current capacity provide operational margin above the 0.4VA original specification.

Mechanical Compatibility: Panel mount flange configuration and operating temperature range (-30°C to 85°C) are identical. Panel cutout dimensions are within acceptable tolerance (27.81mm x 16.46mm versus 28.50mm x 16.00mm), permitting installation in existing panel apertures designed for the original part.

Regulatory Compliance: Both parts carry CSA and UL approvals. The B127J3ZQ2 maintains RoHS compliance, meeting current environmental standards. The substitute is currently in active production status, ensuring long-term availability and supply chain continuity.

Operational Life: The B127J3ZQ2 provides extended electrical life (60,000 cycles versus 50,000 cycles), offering improved durability in cyclic switching applications.

Frequently Asked Questions (FAQ)

Q: Can the B127J3ZQ2 directly replace the M2018TYG01-JA in existing applications?

A: Yes. Both parts share identical SPDT circuit configuration, Mom-Off-Mom switch function, panel mount flange interface, and operating temperature range. The B127J3ZQ2 exceeds the original electrical specifications, providing backward compatibility without performance degradation.

Q: What is the difference in panel cutout dimensions, and does this affect installation?

A: The B127J3ZQ2 panel cutout is 27.81mm x 16.46mm compared to the original 28.50mm x 16.00mm. The substitute is slightly smaller in one dimension and slightly larger in the other. Existing panel apertures designed for the M2018TYG01-JA will accommodate the B127J3ZQ2 with minimal clearance variation.

Q: Why does the B127J3ZQ2 have higher current and voltage ratings than the original part?

A: The B127J3ZQ2 is designed for broader application compatibility across multiple voltage and current ranges. Higher electrical ratings do not negatively impact performance in lower-power applications; the switch will operate correctly at the original 0.4VA, 28V specification.

Q: Are there differences in termination style between these parts?

A: Yes. The M2018TYG01-JA uses solder lug termination, while the B127J3ZQ2 uses PC pin termination. This difference requires evaluation of the existing circuit board or wiring harness connection method. Adapter solutions or circuit board modification may be necessary depending on the application.

Q: What is the significance of the product status difference (Obsolete versus Active)?

A: The M2018TYG01-JA is obsolete and no longer manufactured by NKK Switches. The B127J3ZQ2 is in active production by Electroswitch, ensuring continued availability, technical support, and supply chain reliability for future procurement and maintenance requirements.

Q: Do both parts meet current environmental and regulatory standards?

A: The M2018TYG01-JA is ROHS3 compliant. The B127J3ZQ2 is RoHS compliant. Both parts carry CSA and UL approvals. The B127J3ZQ2 meets current environmental standards and is suitable for applications requiring modern regulatory compliance.