MB2065LD3G01 Equivalent & Substitute Parts

Part Overview

The MB2065LD3G01 is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with On-On switch function. This component is rated for 0.4VA at 28V AC/DC operation and is designed for panel mount, rear installation with solder lug termination. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

MB2065LD3G01

NKK SwitchesIn Stock: 698MB2065LD3G01 Datasheet

Current PartRFQ

1977739-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 9851977739-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2065LD3G01 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPDT
• Switch function must be On-On
• Mounting type must be Panel Mount, Rear
• Termination style must be Solder Lug
• Voltage and current ratings must meet or exceed the original specification

Secondary Compatibility Criteria:

• Operating temperature range should encompass the original range or be acceptable for the application
• RoHS compliance status should match or exceed the original specification
• Ingress protection rating should maintain environmental sealing requirements

The substitute part 1977739-1 (TE Connectivity ALCOSWITCH Switches) satisfies the primary compatibility criteria with matching SPDT circuit, On-On function, Panel Mount Rear configuration, and Solder Lug termination. The substitute provides higher current capacity (3A AC versus 0.4VA) and higher voltage rating (125V AC versus 28V), making it suitable for applications requiring the MB2065LD3G01 specifications.

Parameter Comparison

Engineering Selection Recommendations

The 1977739-1 is a direct functional substitute for the MB2065LD3G01 based on matching circuit topology, switch function, and mechanical interface specifications. Both components are ROHS3 compliant and share identical moisture sensitivity classification, ensuring regulatory and environmental compatibility.

The substitute part is currently in active production status, providing supply chain continuity for applications previously using the obsolete MB2065LD3G01. The higher electrical ratings (3A at 125V AC) of the substitute provide design margin for applications operating at the original 0.4VA/28V specification.

Both components feature solder lug termination and plunger actuator configuration, enabling direct mechanical and electrical integration into existing panel mount installations designed for the original part.

Frequently Asked Questions (FAQ)

Q: Can the 1977739-1 directly replace the MB2065LD3G01 in existing designs?

A: Yes. Both components share identical circuit configuration (SPDT), switch function (On-On), mounting type (Panel Mount, Rear), and termination style (Solder Lug). The substitute's higher electrical ratings provide compatibility with the original specification.

Q: What are the key differences between these two parts?

A: The primary differences are product status (obsolete versus active), current rating (0.4VA versus 3A AC), voltage rating (28V versus 125V AC), and electrical life rating (50,000 cycles versus 25,000 cycles). The substitute provides higher electrical capacity and active availability.

Q: Are there any mechanical compatibility concerns?

A: No mechanical compatibility issues exist. Both components feature identical mounting type (Panel Mount, Rear), termination style (Solder Lug), and actuator type (Plunger for Cap), enabling direct installation in existing panel cutouts and circuit board layouts.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the MB2065LD3G01 and 1977739-1 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity classification, meeting identical environmental and regulatory standards.

Q: What is the operating temperature compatibility?

A: The MB2065LD3G01 operates from -30°C to 85°C, while the 1977739-1 operates from -20°C to 80°C. For applications requiring the full -30°C lower temperature limit, thermal performance verification is necessary.