MLW3020-12RB-2A Equivalent & Substitute Parts

Part Overview

The MLW3020-12RB-2A is a rocker switch with SP3T (single pole, three throw) configuration manufactured by NKK Switches. This illuminated panel mount switch operates at 5A (AC) and 3A (DC) at 125V AC / 30V DC, featuring a concave white actuator with 12 VAC incandescent illumination. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations.

Substiute Parts

MLW3020-12RB-2A

NKK SwitchesIn Stock: 1012MLW3020-12RB-2A Datasheet

Current PartRFQ

MLW3020-12-DB-1A

NKK SwitchesIn Stock: 934MLW3020-12-DB-1A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MLW3020-12RB-2A is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SP3T)
• Switch function (On-On-On)
• Current ratings (5A AC / 3A DC)
• Voltage ratings (125V AC / 30V DC)
• Actuator type and color (Concave, White, Illuminated)
• Illumination specifications (Incandescent, White, 12 VAC)
• Mounting method (Panel Mount, Snap-In)
• Termination style (Solder Lug)
• Operating temperature range (-10°C to 50°C)
• Mechanical and electrical life ratings (30,000 / 10,000 cycles)
• UL approval

The MLW3020-12-DB-1A meets all these criteria and qualifies as a direct functional equivalent. Differences in packaging format and panel cutout dimensions do not affect electrical or mechanical compatibility when proper panel preparation is performed.

Parameter Comparison

Engineering Selection Recommendations

The MLW3020-12-DB-1A is the qualified substitute for the obsolete MLW3020-12RB-2A. Both parts share identical electrical specifications, mechanical ratings, and UL approval status. The substitute part carries Active product status, ensuring continued availability and supply chain reliability.

The MLW3020-12-DB-1A maintains full functional equivalence across all critical parameters: SP3T circuit configuration, 5A AC / 3A DC current capacity, 125V AC / 30V DC voltage ratings, and identical illumination specifications. Both parts feature the same actuator design, termination method, and environmental operating range.

Panel cutout dimensions differ between the two parts. The main part requires a square 19.20mm² cutout, while the substitute requires a rectangular 18.70mm x 16.70mm cutout. Panel modification or adapter hardware may be necessary depending on existing installation geometry.

Frequently Asked Questions (FAQ)

Q: Can MLW3020-12-DB-1A directly replace MLW3020-12RB-2A in existing installations?

A: Electrical and mechanical compatibility is complete. Panel cutout dimensions differ, requiring physical panel modification or use of adapter hardware to accommodate the rectangular cutout of the substitute part.

Q: Are the electrical ratings identical between these parts?

A: Yes. Both parts operate at 5A (AC) and 3A (DC) at 125V AC / 30V DC with identical illumination specifications (12 VAC incandescent, white).

Q: What is the significance of the Active product status for MLW3020-12-DB-1A?

A: Active status indicates the substitute part is currently manufactured and available through distribution channels, providing supply continuity for the obsolete MLW3020-12RB-2A.

Q: Do both parts require the same jumper configuration?

A: Yes. Both parts require a jumper to achieve triple throw functionality, as specified in the features for the MLW series.

Q: Are there compliance or certification differences?

A: Both parts carry UL approval and meet identical regulatory requirements. The substitute part is ROHS3 compliant, providing additional environmental compliance.

Q: What packaging formats are available?

A: Both parts are supplied in tray packaging format.