MB2011SS4G01-CA Equivalent & Substitute Parts

Part Overview

The MB2011SS4G01-CA is an obsolete pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuitry with On-Momentary function. This component is rated for 0.4VA at 28V AC/DC with panel mount rear configuration and solder lug termination. Due to its obsolete product status, identifying functionally compatible alternatives is necessary for ongoing system maintenance and new design implementations where equivalent performance characteristics are required.

Substiute Parts

MB2011SS4G01-CA

NKK SwitchesIn Stock: 819MB2011SS4G01-CA Datasheet

Current PartRFQ

1977737-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11241977737-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Circuit Configuration: Must be SPDT to maintain electrical functionality
• Switch Function: Must be On-Momentary to preserve operational behavior
• Mounting Type: Must be Panel Mount, Rear to ensure mechanical compatibility
• Termination Style: Must be Solder Lug for connection compatibility
• Voltage Rating: Substitute must meet or exceed 28V DC rating
• Current Rating: Substitute must support the required load (0.4VA minimum)
• Regulatory Compliance: RoHS3 compliance required for modern applications

The TE Connectivity ALCOSWITCH Switches part number 1977737-2 meets these substitution criteria with compatible SPDT circuitry, On-Momentary function, panel mount rear configuration, and solder lug termination.

Parameter Comparison

Engineering Selection Recommendations

The 1977737-2 from TE Connectivity ALCOSWITCH Switches is a qualified substitute for the obsolete MB2011SS4G01-CA based on the following factors:

• Both components maintain identical SPDT circuit configuration and On-Momentary switching function
• Voltage rating of 30V DC on the substitute exceeds the 28V requirement of the main part
• Current capacity of 60mA DC is sufficient for the 0.4VA specification
• Panel mount rear configuration and solder lug termination ensure mechanical and electrical compatibility
• Both components are ROHS3 compliant, meeting current regulatory requirements
• The substitute part is currently active in production, ensuring long-term availability and supply chain stability
• Operating temperature ranges overlap sufficiently for most industrial applications, with the substitute covering -20°C to 80°C

Frequently Asked Questions (FAQ)

Q: Can the 1977737-2 directly replace the MB2011SS4G01-CA in existing designs?

A: Yes. Both components share identical circuit configuration (SPDT), switch function (On-Momentary), mounting type (Panel Mount, Rear), and termination style (Solder Lug). The substitute meets or exceeds all electrical specifications.

Q: What is the difference in actuator design between these parts?

A: The MB2011SS4G01-CA uses a round button actuator, while the 1977737-2 uses a plunger-type actuator designed for cap attachment. Both provide equivalent momentary switching function. Physical panel cutout dimensions should be verified for the specific application.

Q: Are there temperature range limitations when substituting?

A: The substitute operates from -20°C to 80°C, compared to the original part's -30°C to 85°C range. Applications requiring operation below -20°C or above 80°C should be evaluated against actual system requirements.

Q: Do both parts meet current compliance standards?

A: Yes. Both the MB2011SS4G01-CA and 1977737-2 are ROHS3 compliant. The substitute is also REACH unaffected, meeting modern regulatory requirements for new designs.

Q: What is the electrical life expectancy for the substitute?

A: The 1977737-2 is rated for 50,000 electrical cycles, matching the original part specification. This ensures equivalent operational longevity under normal switching conditions.

Q: Is the substitute available in the same packaging format?

A: The substitute is supplied in bulk packaging, whereas the original part packaging format is not specified in available data. Confirm packaging requirements with your procurement process.