MB2011SD3G01-CB Equivalent & Substitute Parts

Part Overview

The MB2011SD3G01-CB is a pushbutton switch manufactured by NKK Switches, classified as SPDT (Single Pole Double Throw) with On-Mom (momentary) functionality. This component is rated for 0.4VA at 28V AC/DC and features panel mount rear installation with IP67 ingress protection. The product is currently obsolete, making identification of functionally equivalent alternatives necessary for system maintenance, repair, and redesign applications where continued supply cannot be guaranteed.

Substiute Parts

MB2011SD3G01-CB

NKK SwitchesIn Stock: 1214MB2011SD3G01-CB Datasheet

Current PartRFQ

1977737-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11241977737-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2011SD3G01-CB is determined by the following critical parameters:

Circuit Configuration: SPDT topology is mandatory for functional equivalence, ensuring identical contact arrangement and switching behavior.

Switch Function: On-Mom (momentary) operation must be preserved to maintain system control logic.

Mounting Type: Panel Mount, Rear installation is required for mechanical compatibility with existing enclosure designs.

Termination Style: Solder Lug termination ensures compatibility with existing PCB or wiring harness connections.

Voltage and Current Ratings: The substitute must support minimum 28V DC operation and handle the application's current requirements without exceeding component ratings.

Electrical Life: Minimum 50,000 cycles electrical life ensures comparable operational durability.

Compliance: ROHS3 compliance is required for regulatory alignment with the original component.

The identified substitute part 1977737-2 (TE Connectivity ALCOSWITCH Switches) meets these core substitution criteria, though with specific parameter variations noted in the comparison table below.

Parameter Comparison

Engineering Selection Recommendations

For DC Applications ≤60mA: The 1977737-2 substitute is suitable when application current does not exceed 60mA DC. The higher DC voltage rating (30V vs. 28V) provides adequate margin for the specified 28V operating point.

For AC Applications or Higher Current Loads: The current rating differential (0.4VA vs. 60mA DC) requires evaluation. The original MB2011SD3G01-CB supports AC operation; the substitute is DC-rated only. Applications requiring AC switching or currents exceeding 60mA DC must source alternative components.

Temperature Operating Range: The substitute operates within -20°C to 80°C, compared to the original -30°C to 85°C range. Applications requiring operation below -20°C or above 80°C must confirm compatibility or identify alternative sources.

Ingress Protection: The original component specifies IP67 (dust tight, waterproof). The substitute's ingress protection rating is not provided in available documentation. Applications requiring sealed operation must confirm environmental protection equivalence before substitution.

Compliance and Availability: Both components are ROHS3 compliant. The substitute (1977737-2) is in active production status, ensuring continued supply availability, whereas the original is obsolete.

Frequently Asked Questions (FAQ)

Q: Can the 1977737-2 directly replace the MB2011SD3G01-CB in all applications?

A: Direct replacement is possible only when application current does not exceed 60mA DC and operating temperature remains within -20°C to 80°C. AC applications or higher current requirements require alternative component sourcing. Ingress protection requirements must also be independently verified.

Q: What is the primary difference in current rating between these components?

A: The MB2011SD3G01-CB is rated for 0.4VA (AC/DC), while the 1977737-2 is rated for 60mA DC only. This represents a significant difference in current-handling capability. The substitute is suitable only for low-current DC switching applications.

Q: Are both components RoHS compliant?

A: Yes, both the MB2011SD3G01-CB and 1977737-2 are ROHS3 compliant, meeting current environmental and hazardous substance restrictions.

Q: Does the substitute maintain the same mechanical life expectancy?

A: Both components specify 50,000 cycles electrical life, indicating equivalent operational durability under rated conditions.

Q: What should be verified before implementing the 1977737-2 as a substitute?

A: Confirm that application current does not exceed 60mA DC, operating temperature remains within -20°C to 80°C, and environmental protection requirements (if IP67 sealing is critical) are independently validated. AC operation is not supported by the substitute.