MB2011SD3W03 Equivalent & Substitute Parts

Part Overview

The MB2011SD3W03 is an SPDT pushbutton switch manufactured by NKK Switches, designed for panel mount rear installation with a 6A AC / 3A DC current rating at 125V AC / 30V DC. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing maintenance, repair, and new design applications where this specific model is no longer readily available through standard procurement channels.

Substiute Parts

MB2011SD3W03

NKK SwitchesIn Stock: 1050MB2011SD3W03 Datasheet

Current PartRFQ

MB2011SS1W03

NKK SwitchesIn Stock: 978MB2011SS1W03 Datasheet

SimilarRFQ

700ASP7B10M2QE

E-SwitchIn Stock: 869700ASP7B10M2QE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2011SD3W03 is determined by the following critical parameters:

• Circuit configuration must be SPDT
• Switch function must be On-Mom (momentary)
• Current rating must support minimum 6A AC / 3A DC
• Voltage rating must support minimum 125V AC / 30V DC
• Mounting type must be Panel Mount, Rear
• Termination style must be PC Pin
• Panel cutout diameter must accommodate 6.50mm circular opening
• Operating temperature range must encompass -30°C to 85°C
• RoHS3 compliance required

Two substitute parts meet these criteria: MB2011SS1W03 (NKK Switches) and 700ASP7B10M2QE (E-Switch). Both maintain electrical and mechanical compatibility with the original specification.

Parameter Comparison

Engineering Selection Recommendations

MB2011SS1W03 is the direct equivalent within the NKK Switches MB2000 series. It maintains identical electrical ratings (6A AC / 3A DC at 125V AC / 30V DC), mechanical dimensions, and operating temperature range. Both parts share obsolete status and ROHS3 compliance. This substitute is appropriate for direct replacement in existing designs where NKK Switches sourcing is preferred.

700ASP7B10M2QE from E-Switch is a functional substitute with active product status, ensuring long-term availability. It meets the core SPDT On-Mom circuit requirement and supports the specified operating temperature range. The AC voltage rating is 120V (versus 125V) and DC voltage is 28V (versus 30V), representing a minor reduction in voltage headroom. The panel cutout diameter is 6.35mm (versus 6.50mm), requiring panel modification. The electrical life rating of 50,000 cycles exceeds the original specification. ROHS3 compliance and IP67 ingress protection are maintained. This substitute is suitable for applications where long-term component availability is prioritized over exact dimensional matching.

Frequently Asked Questions (FAQ)

Q: Can MB2011SS1W03 be used as a direct drop-in replacement for MB2011SD3W03?

A: Yes. MB2011SS1W03 maintains identical electrical specifications (6A AC / 3A DC, 125V AC / 30V DC), circuit configuration (SPDT), switch function (On-Mom), mounting type (Panel Mount, Rear), termination style (PC Pin), and panel cutout diameter (6.50mm). Both are obsolete NKK Switches components within the MB2000 series.

Q: What are the limitations of using 700ASP7B10M2QE as a substitute?

A: 700ASP7B10M2QE has two dimensional and electrical considerations: the panel cutout diameter is 6.35mm instead of 6.50mm, requiring panel modification; the AC voltage rating is 120V instead of 125V, and DC voltage is 28V instead of 30V. These represent minor reductions in voltage margin. The component is otherwise electrically compatible and offers superior electrical life (50,000 cycles versus 25,000 cycles).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. MB2011SS1W03 and 700ASP7B10M2QE are both ROHS3 compliant, matching the original MB2011SD3W03 specification.

Q: What is the difference in packaging between the main part and substitutes?

A: MB2011SD3W03 is supplied in standard packaging. MB2011SS1W03 is supplied in bulk packaging. 700ASP7B10M2QE is supplied in tray packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Which substitute offers the longest product lifecycle?

A: 700ASP7B10M2QE has active product status, ensuring ongoing availability and support. MB2011SS1W03 and MB2011SD3W03 are both classified as obsolete.