MB2011LD1G01/328 Equivalent & Substitute Parts

Part Overview

The MB2011LD1G01/328 is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with on-momentary switch function. Rated for 0.4VA at 28V AC/DC, this component is designed for panel mount rear installation with solder lug termination. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where legacy component specifications must be maintained.

Substiute Parts

MB2011LD1G01/328

NKK SwitchesIn Stock: 916MB2011LD1G01/328 Datasheet

Current PartRFQ

1977737-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11241977737-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2011LD1G01/328 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-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 Rating: The substitute must support minimum 28V DC operation. Higher voltage ratings are acceptable; lower ratings are not.

Current Rating: The substitute must handle minimum 0.4VA. Higher current capacity is acceptable; lower ratings are not.

Electrical Life: Minimum 50,000 cycles required to meet operational durability specifications.

The identified substitute part 1977737-2 (TE Connectivity ALCOSWITCH Switches) meets these core substitution criteria while maintaining functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 1977737-2 (TE Connectivity ALCOSWITCH Switches) is a qualified substitute for the obsolete MB2011LD1G01/328. Both components are ROHS3 compliant and carry MSL 1 rating, meeting environmental and regulatory requirements for industrial and commercial applications.

The substitute part exceeds the original specification in current capacity (60mA versus 0.4VA) and voltage rating (30V DC versus 28V DC), providing additional operational margin. The operating temperature range of the substitute (-20°C to 80°C) is narrower than the original (-30°C to 85°C); applications requiring operation below -20°C or above 80°C must evaluate this limitation against specific system requirements.

Both components maintain identical circuit topology, switch function, mounting configuration, and termination style, ensuring direct functional replacement without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the 1977737-2 directly replace the MB2011LD1G01/328 in existing designs?

A: Yes. Both components share identical SPDT circuit configuration, on-momentary function, panel mount rear installation, and solder lug termination. The substitute meets or exceeds all critical electrical parameters.

Q: What is the significance of the current rating difference (0.4VA versus 60mA)?

A: The substitute's 60mA DC rating exceeds the original 0.4VA specification, providing additional current-handling capacity. This represents a design improvement and does not create compatibility issues.

Q: Does the narrower operating temperature range of the substitute affect compatibility?

A: The substitute operates from -20°C to 80°C, compared to the original -30°C to 85°C. Applications operating within the -20°C to 80°C window experience no limitation. Systems requiring extended temperature operation must verify that the substitute's range meets specific environmental requirements.

Q: Are both components RoHS compliant?

A: Yes. Both the MB2011LD1G01/328 and 1977737-2 are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, meeting regulatory requirements for industrial and commercial deployment.

Q: What is the mechanical compatibility between these components?

A: Both components feature plunger-type actuators designed for cap installation and identical panel mount rear configuration. Mechanical interchangeability is confirmed for standard enclosure cutout designs.