MB2011SS4G01-BA Equivalent & Substitute Parts

Part Overview

The MB2011SS4G01-BA is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with 0.4VA current rating at 28V. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system maintenance and new design implementations. The switch is designed for panel mount rear installation with solder lug termination and epoxy sealed terminals.

Substiute Parts

MB2011SS4G01-BA

NKK SwitchesIn Stock: 1004MB2011SS4G01-BA Datasheet

Current PartRFQ

MBN15SS4G01-BA

NKK SwitchesIn Stock: 1122MBN15SS4G01-BA Datasheet

MFR RecommendedRFQ

1977737-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11241977737-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2011SS4G01-BA is determined by the following critical parameters:

Primary Substitution Criteria:

• Circuit configuration: SPDT
• Switch function: On-Mom (momentary operation)
• Termination style: Solder Lug
• Mounting type: Panel Mount, Rear
• Voltage compatibility: Minimum 28V DC rating required
• Current capacity: Minimum 0.4VA or equivalent amperage at rated voltage

Substitute parts must maintain compatibility across these parameters to ensure functional equivalence in existing circuit designs and panel assemblies.

Parameter Comparison

Engineering Selection Recommendations

MBN15SS4G01-BA (NKK Switches): This substitute maintains NKK Switches manufacturer continuity with active product status. However, critical electrical parameters including current rating and voltage specifications are not provided in available documentation. Physical mounting configuration differs (bushing mount versus panel mount rear), requiring mechanical redesign consideration.

1977737-2 (TE Connectivity ALCOSWITCH): This substitute provides active product status with ROHS3 compliance matching the original part. Electrical specifications are fully defined: 60mA DC current rating at 30V exceeds the original 0.4VA requirement, and operating temperature range (-20°C to 80°C) is narrower than the original (-30°C to 85°C). Panel mount rear configuration and solder lug termination maintain mechanical compatibility. Electrical life rating of 50,000 cycles matches the original specification.

Selection between substitutes depends on application-specific requirements regarding mounting configuration, temperature operating range, and current capacity margins.

Frequently Asked Questions (FAQ)

Q: Can the MB2011SS4G01-BA be directly replaced with MBN15SS4G01-BA?

A: Direct replacement is not confirmed. While both are NKK Switches SPDT momentary switches, the MBN15SS4G01-BA uses bushing mount configuration versus the original panel mount rear design. Mechanical panel integration requires verification. Additionally, electrical parameter specifications for the MBN15SS4G01-BA are incomplete in available documentation.

Q: Is the 1977737-2 suitable for applications requiring -30°C operation?

A: No. The 1977737-2 operating temperature range is -20°C to 80°C, which does not extend to the original part's -30°C minimum. Applications requiring -30°C operation must confirm alternative substitutes or retain the original MB2011SS4G01-BA if available from inventory.

Q: Does the 1977737-2 meet the current requirements of the original circuit?

A: Yes. The 1977737-2 is rated for 60mA DC, which exceeds the original 0.4VA specification. At 28V DC operation, this provides adequate current capacity margin for the original application.

Q: Are both substitute parts RoHS compliant?

A: The 1977737-2 is confirmed ROHS3 compliant, matching the original part. RoHS compliance status for MBN15SS4G01-BA is not specified in available documentation.

Q: What is the primary difference in actuator design between substitutes?

A: The MB2011SS4G01-BA features a round button actuator. The 1977737-2 uses a plunger-type actuator designed for cap installation. This affects panel interface design and operator feel characteristics. The MBN15SS4G01-BA actuator specification is not provided.