MB2065SS1G01 Equivalent & Substitute Parts

Part Overview

The MB2065SS1G01 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 product 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

MB2065SS1G01

NKK SwitchesIn Stock: 1032MB2065SS1G01 Datasheet

Current PartRFQ

1977739-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 9851977739-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2065SS1G01 is determined by the following critical parameters:

Circuit Configuration: SPDT topology is mandatory for functional equivalence, as this determines the switch's ability to route signals between two positions.

Switch Function: On-On operation must be maintained to preserve system behavior where both switch positions are active states.

Mounting Type: Panel Mount, Rear installation is required to ensure mechanical compatibility with existing panel cutouts and rear-mounted terminal access.

Termination Style: Solder Lug termination is necessary for direct integration into PCB or wiring harness connections.

Actuator Type: Plunger for Cap configuration ensures consistent user interface and mechanical engagement characteristics.

Electrical Ratings: Substitute parts must support the operational voltage (28V AC/DC) and current requirements (0.4VA minimum). Parts with higher ratings are acceptable as they provide operational margin.

The substitute part 1977739-1 (TE Connectivity ALCOSWITCH Switches) meets these core substitution criteria while offering enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 1977739-1 substitute part is suitable for applications requiring SPDT On-On pushbutton switch functionality with panel mount, rear configuration. Both the main part and substitute are ROHS3 compliant, ensuring regulatory alignment for new designs and legacy system replacements.

The substitute part 1977739-1 offers superior electrical performance with 3A current capacity at 125V AC, exceeding the original part's 0.4VA 28V specification. This performance margin accommodates applications with higher electrical demands while maintaining backward compatibility with lower-power circuits.

The operating temperature range of the substitute (-20°C to 80°C) is slightly narrower than the original part (-30°C to 85°C). Applications requiring operation below -20°C or above 80°C should retain the original MB2065SS1G01 specification or identify alternative substitutes with extended temperature ranges.

The substitute part's electrical life rating of 25,000 cycles is lower than the original part's 50,000 cycles. Applications with high-cycle switching requirements should evaluate this parameter against actual duty cycle expectations.

Both parts maintain identical circuit topology, switch function, mounting configuration, and termination style, ensuring direct functional substitution in most applications.

Frequently Asked Questions (FAQ)

Q: Can the 1977739-1 directly replace the MB2065SS1G01 in existing designs?

A: Yes, the 1977739-1 provides direct functional substitution. Both parts share identical SPDT circuit configuration, On-On switch function, panel mount rear installation, plunger actuator type, and solder lug termination. The substitute part's higher electrical ratings (3A at 125V) exceed the original part's requirements (0.4VA at 28V), providing operational compatibility.

Q: What are the key differences between these parts?

A: The primary differences are product status (original is obsolete, substitute is active), electrical ratings (substitute offers higher current and voltage capacity), operating temperature range (substitute is -20°C to 80°C versus original -30°C to 85°C), and electrical life (substitute rated for 25,000 cycles versus original 50,000 cycles).

Q: Are there packaging differences between the main part and substitute?

A: The main part MB2065SS1G01 is packaged as individual units with dash packaging notation. The substitute 1977739-1 is supplied in bulk packaging. Both use identical solder lug termination style suitable for direct soldering to PCBs or wiring harnesses.

Q: Do both parts meet current regulatory requirements?

A: Yes, both the MB2065SS1G01 and 1977739-1 are ROHS3 compliant. The substitute part is classified as active product status, ensuring ongoing availability and regulatory support for new designs.

Q: What applications are suitable for the 1977739-1 substitute?

A: The 1977739-1 is suitable for any application requiring SPDT On-On pushbutton switch functionality with panel mount rear configuration and solder lug termination, operating at or below 125V AC and 3A current. Applications operating within the substitute's temperature range (-20°C to 80°C) and cycle life requirements (25,000 cycles) are directly compatible.