MB2011LS1G01 Equivalent & Substitute Parts

Part Overview

The MB2011LS1G01 is an obsolete pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with 0.4VA rating at 28V. This component is a standard panel-mount rear actuator switch with solder lug termination and epoxy sealed terminals. Due to its obsolete product status, identifying functionally compatible substitute components is necessary for ongoing system maintenance, repair, and new design implementations where equivalent performance characteristics are required.

Substiute Parts

MB2011LS1G01

NKK SwitchesIn Stock: 1007MB2011LS1G01 Datasheet

Current PartRFQ

1977737-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11241977737-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the MB2011LS1G01 are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Circuit configuration: SPDT
• Switch function: On-Momentary operation
• Mounting type: Panel Mount, Rear
• Actuator type: Plunger for Cap
• Termination style: Solder Lug
• Voltage rating compatibility: Minimum 28V DC
• Current rating: Minimum 0.4VA capacity
• Electrical life: Minimum 50,000 cycles

The substitute part 1977737-2 (TE Connectivity ALCOSWITCH Switches) meets these core functional requirements with equivalent circuit topology and operational characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 1977737-2 from TE Connectivity ALCOSWITCH Switches is a functionally compatible substitute for the obsolete MB2011LS1G01. Both components share identical circuit topology (SPDT), switch function (On-Momentary), mounting configuration (Panel Mount, Rear), and termination method (Solder Lug).

Electrical performance of the 1977737-2 exceeds the original specification: the 60mA DC rating surpasses the 0.4VA requirement, and the 30V DC rating exceeds the 28V specification. Both components maintain ROHS3 compliance and 50,000-cycle electrical life ratings.

The primary consideration is the operating temperature range. The 1977737-2 operates from -20°C to 80°C, compared to the MB2011LS1G01 range of -30°C to 85°C. Applications requiring operation below -20°C or above 80°C must evaluate this limitation against system requirements.

The 1977737-2 is currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete original component.

Frequently Asked Questions (FAQ)

Q: Can the 1977737-2 directly replace the MB2011LS1G01 in existing designs?

A: Yes, for applications operating within the -20°C to 80°C temperature range. Both components feature identical SPDT circuit configuration, On-Momentary function, Panel Mount Rear mounting, Plunger actuator type, and Solder Lug termination. Electrical ratings of the 1977737-2 exceed the original specification.

Q: What is the key difference between these two components?

A: The primary difference is operating temperature range. The MB2011LS1G01 operates from -30°C to 85°C, while the 1977737-2 operates from -20°C to 80°C. The 1977737-2 also features tactile/audible feedback, whereas the original component does not specify this feature.

Q: Are both components RoHS compliant?

A: Yes, both the MB2011LS1G01 and 1977737-2 are ROHS3 compliant.

Q: What is the electrical life rating for both components?

A: Both components are rated for 50,000 electrical cycles.

Q: Does the 1977737-2 have the same panel cutout dimensions as the MB2011LS1G01?

A: The MB2011LS1G01 specifies a circular 6.50mm diameter panel cutout. The 1977737-2 panel cutout dimensions are not provided in the available specifications. Physical verification is necessary before installation in existing panel assemblies.

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

A: The MB2011LS1G01 is rated at 0.4VA (AC/DC), while the 1977737-2 is rated at 60mA (DC). The 1977737-2 rating exceeds the original specification and is suitable for equivalent or lower-power applications.