MB2011SS1G01-BA Equivalent & Substitute Parts

Part Overview

The MB2011SS1G01-BA is an obsolete pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuitry with 0.4VA rated capacity at 28V. This component is part of the MB2000 series and is designed for panel-mount rear installation with solder lug termination. Due to its obsolete product status, identifying equivalent and substitute parts is necessary for system maintenance, repair, and redesign applications where continued supply cannot be guaranteed.

Substiute Parts

MB2011SS1G01-BA

NKK SwitchesIn Stock: 1058MB2011SS1G01-BA Datasheet

Current PartRFQ

MB2411E1G01-FA

NKK SwitchesIn Stock: 1167MB2411E1G01-FA Datasheet

SimilarRFQ

1977737-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11241977737-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2011SS1G01-BA is determined by the following critical parameters:

• Circuit configuration (SPDT)
• Switch function (On-Mom momentary operation)
• Voltage rating compatibility (28V AC/DC minimum)
• Current capacity (0.4VA or greater)
• Mounting type (Panel Mount, Rear)
• Termination style (Solder Lug)
• Panel cutout dimensions (Circular 6.50mm Dia)

The identified substitute parts meet these core electrical and mechanical requirements, enabling direct functional replacement in applications designed for the MB2011SS1G01-BA.

Parameter Comparison

Engineering Selection Recommendations

MB2411E1G01-FA (NKK Switches MB2400 Series): This substitute maintains identical electrical specifications (0.4VA at 28V AC/DC) and mechanical compatibility with the original part. Both components are obsolete; however, the MB2411E1G01-FA offers extended electrical life (100,000 cycles versus 50,000 cycles). ROHS3 compliance and identical operating temperature range ensure direct functional equivalence. This part is preferred for applications requiring maximum cycle longevity within the same electrical envelope.

1977737-2 (TE Connectivity ALCOSWITCH Switches Blue Series): This substitute provides SPDT momentary operation with 30V DC rating and 60mA current capacity. The part maintains panel-mount rear installation and solder lug termination. As an active product, 1977737-2 offers superior long-term availability compared to obsolete alternatives. The reduced operating temperature range (-20°C ~ 80°C versus -30°C ~ 85°C) and lower current rating (60mA DC versus 0.4VA AC/DC) require application-level verification for thermal and load compatibility. This part is suitable for applications operating within the specified temperature and current constraints.

Frequently Asked Questions (FAQ)

Q: Can MB2411E1G01-FA directly replace MB2011SS1G01-BA without circuit modification?

A: Yes. Both parts share identical SPDT circuitry, 0.4VA current rating at 28V AC/DC, panel-mount rear configuration, solder lug termination, and 6.50mm circular panel cutout dimensions. No circuit modification is required.

Q: Is 1977737-2 suitable for all applications using MB2011SS1G01-BA?

A: 1977737-2 is suitable only for applications where the operating temperature remains within -20°C ~ 80°C and the load current does not exceed 60mA DC. Applications requiring AC operation or temperatures below -20°C or above 80°C require MB2411E1G01-FA or continued sourcing of the original part.

Q: What is the primary advantage of selecting 1977737-2 over NKK alternatives?

A: 1977737-2 is an active product with established supply chain availability, whereas both MB2011SS1G01-BA and MB2411E1G01-FA are obsolete. For new designs or long-term production, 1977737-2 provides supply continuity, provided application parameters align with its electrical and thermal specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. MB2011SS1G01-BA, MB2411E1G01-FA, and 1977737-2 are all ROHS3 compliant, ensuring compatibility with regulatory requirements for electronic component procurement.

Q: What is the difference in mechanical life between the main part and MB2411E1G01-FA?

A: MB2011SS1G01-BA specifies 100,000 mechanical cycles, while MB2411E1G01-FA specifies 200,000 mechanical cycles. Both parts meet or exceed typical application requirements for panel-mount pushbutton switches.