M2012S2A2G40 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The M2012S2A2G40 is an NKK Switches toggle switch with SPDT (Single Pole Double Throw) configuration, rated for 0.4VA at 28V AC/DC. This through-hole, right-angle mounted component features epoxy sealed terminals and a standard round actuator. The part is currently obsolete, making identification of equivalent and substitute components essential for ongoing system support and new design implementations.

Substiute Parts

M2012S2A2G40

NKK SwitchesIn Stock: 1012M2012S2A2G40 Datasheet

Current PartRFQ

MN12S2A2G40

NKK SwitchesIn Stock: 1139MN12S2A2G40 Datasheet

MFR RecommendedRFQ

7101MD9AV2BE

C&KIn Stock: 29627101MD9AV2BE Datasheet

DirectRFQ

A123M1D9AV2B

ElectroswitchIn Stock: 1151A123M1D9AV2B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the M2012S2A2G40 are classified based on alignment with critical electrical and mechanical parameters:

MFR Recommended Substitute - MN12S2A2G40 (NKK Switches): This part maintains identical circuit configuration (SPDT, On-On), current rating (0.4VA AC/DC), and voltage specifications (28V AC/DC). Mounting type, actuator configuration, and termination style are preserved. Product status is Active, ensuring ongoing availability. RoHS3 compliance is maintained.

Direct Manufacturer Substitute - 7101MD9AV2BE (C&K): This C&K component provides equivalent SPDT circuit configuration and On-On function with matching current rating (0.4VA AC/DC) and identical mounting/termination specifications. Voltage rating is 20V AC/DC, which is lower than the original 28V specification. Actuator length matches at 6.86mm. Electrical life is enhanced at 100,000 cycles versus 50,000 cycles. Product status is Active.

Similar Substitute - A123M1D9AV2B (Electroswitch): This part shares SPDT circuit configuration, On-On function, and identical mounting/termination characteristics. Current rating is 0.5VA (AC/DC), exceeding the original 0.4VA specification. Voltage rating matches at 28V AC/DC. Actuator length is 5.08mm, differing from the original 6.86mm. Operating temperature range extends to 90°C. Electrical life is 60,000 cycles. Product status is Active.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection - MN12S2A2G40: This NKK Switches part is the recommended substitute. It maintains manufacturer continuity, preserves all specified electrical and mechanical parameters, and carries Active product status with ROHS3 compliance. Selection of this part eliminates design modification requirements.

Secondary Selection - 7101MD9AV2BE: The C&K component is suitable for applications where voltage requirements do not exceed 20V AC/DC. This part provides enhanced electrical life (100,000 cycles) and maintains all mechanical compatibility parameters. ROHS3 compliance is confirmed. REACH status is affected, requiring compliance verification for specific applications.

Tertiary Selection - A123M1D9AV2B: The Electroswitch part accommodates applications requiring higher current capacity (0.5VA versus 0.4VA) while maintaining 28V voltage specifications. Actuator length differs at 5.08mm, requiring mechanical clearance verification. Operating temperature range extends to 90°C. RoHS compliance is confirmed. REACH status is vendor undefined, requiring clarification for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can MN12S2A2G40 be used as a direct replacement for M2012S2A2G40?

A: Yes. MN12S2A2G40 maintains identical electrical specifications (SPDT, 0.4VA, 28V AC/DC), mechanical configuration (through-hole, right-angle, vertical mounting), and termination style (PC Pin). Both parts are NKK Switches products with ROHS3 compliance.

Q: What is the primary limitation of 7101MD9AV2BE as a substitute?

A: The voltage rating is 20V AC/DC, compared to the original 28V specification. This part is suitable only for applications operating at or below 20V. All other electrical and mechanical parameters align with the original part.

Q: Does A123M1D9AV2B require design modifications?

A: The actuator length differs (5.08mm versus 6.86mm), requiring mechanical clearance verification in the application. Current capacity is higher (0.5VA versus 0.4VA), which is acceptable for most applications. Voltage rating matches at 28V AC/DC.

Q: Are all substitute parts RoHS compliant?

A: Yes. MN12S2A2G40 and 7101MD9AV2BE carry ROHS3 compliance. A123M1D9AV2B carries RoHS compliance. All parts meet environmental regulatory requirements.

Q: Which substitute offers the longest electrical life?

A: 7101MD9AV2BE provides 100,000 cycles, compared to 50,000 cycles for the original part and 60,000 cycles for A123M1D9AV2B.

Q: What packaging formats are available for these substitutes?

A: MN12S2A2G40 is available in Bulk packaging. 7101MD9AV2BE is supplied in Tray packaging. A123M1D9AV2B is available in Bulk packaging.