M2123LEW02 Equivalent & Substitute Parts

Part Overview

The M2123LEW02 is a toggle switch manufactured by NKK Switches, classified as a DPDT (Double Pole Double Throw) panel mount switch with illuminated LED indication. This component is rated for 6A at 125V AC and 3A at 30V DC, featuring a standard round actuator with quick connect termination. The M2123LEW02 is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

M2123LEW02

NKK SwitchesIn Stock: 919M2123LEW02 Datasheet

Current PartRFQ

M2123LEW01

NKK SwitchesIn Stock: 862M2123LEW01 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M2123LEW02 is determined by strict equivalence across the following critical parameters:

• Circuit configuration (DPDT)
• Switch function (On-Off-On)
• Current and voltage ratings (6A/125V AC, 3A/30V DC)
• Mounting type (Panel Mount)
• Actuator specifications (Standard Round, 14.70mm length)
• Illumination type and voltage (LED, Yellow, 2.1 VDC)
• Panel cutout dimensions (Circular - 6.50mm Dia)
• Bushing thread specification (1/4-40)
• Operating temperature range (-10°C to 55°C)
• Electrical life rating (25,000 Cycles)

The M2123LEW01 qualifies as a direct substitute based on complete alignment with all electrical, mechanical, and environmental parameters. The primary distinction between these parts is the termination style: the M2123LEW02 uses Quick Connect - 0.062" (1.5mm) termination, while the M2123LEW01 uses Solder Lug termination. This difference affects only the connection method to the circuit board and does not impact electrical performance or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The M2123LEW01 is the manufacturer-recommended substitute for the obsolete M2123LEW02. Both components maintain identical electrical performance specifications and mechanical compatibility. The M2123LEW01 carries Active product status, ensuring continued availability and supply chain reliability compared to the obsolete M2123LEW02.

Selection between these parts depends solely on termination method requirements. Applications utilizing quick connect connectors should retain the M2123LEW02 specification if inventory permits. New designs or replacement applications should transition to the M2123LEW01, which employs solder lug termination and benefits from active manufacturing status.

Both parts meet RoHS compliance requirements, with the M2123LEW01 carrying standard RoHS certification and the M2123LEW02 carrying ROHS3 certification. Both are REACH Unaffected and classified under ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can the M2123LEW01 directly replace the M2123LEW02 in existing designs?

A: Yes, provided the circuit board layout accommodates solder lug termination instead of quick connect termination. All electrical and mechanical specifications are identical.

Q: What is the primary difference between M2123LEW02 and M2123LEW01?

A: The termination style differs. M2123LEW02 uses Quick Connect - 0.062" (1.5mm) termination, while M2123LEW01 uses Solder Lug termination. This affects only the connection method to the circuit board.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts share identical current ratings (6A AC, 3A DC), voltage ratings (125V AC, 30V DC), illumination specifications (LED Yellow, 2.1 VDC), and electrical life (25,000 cycles).

Q: Why is the M2123LEW02 listed as obsolete?

A: The M2123LEW02 has been discontinued by NKK Switches. The M2123LEW01 remains in active production and serves as the current equivalent.

Q: Do both parts fit the same panel cutout?

A: Yes. Both parts require a circular 6.50mm diameter cutout and use 1/4-40 bushing thread specification.

Q: What are the compliance differences between the two parts?

A: M2123LEW02 carries ROHS3 compliance, while M2123LEW01 carries standard RoHS compliance. Both are REACH Unaffected and classified as EAR99.