M2012ES1G02 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The M2012ES1G02 is a panel-mount toggle switch manufactured by NKK Switches with SPDT (Single Pole Double Throw) circuit configuration. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The switch is rated for 0.4VA at 28V AC/DC with a flatted actuator and quick connect termination style.

Substiute Parts

M2012ES1G02

NKK SwitchesIn Stock: 837M2012ES1G02 Datasheet

Current PartRFQ

M2012ES1G01

NKK SwitchesIn Stock: 2059M2012ES1G01 Datasheet

MFR RecommendedRFQ

100SP1T6B11M3QEH

E-SwitchIn Stock: 1107100SP1T6B11M3QEH Datasheet

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100SP1T6B15M3QEH

E-SwitchIn Stock: 1050100SP1T6B15M3QEH Datasheet

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7101P3Y1Z3QIS

C&KIn Stock: 7997101P3Y1Z3QIS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M2012ES1G02 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration (SPDT)
• Switch function (On-On)
• Mounting type (Panel Mount)
• Panel cutout dimensions (Circular - 6.50mm Dia or compatible)
• Bushing thread (1/4-40)
• Termination style compatibility
• Operating temperature range (-30°C ~ 85°C minimum)

Electrical Performance Criteria:

• Voltage rating must support minimum 28V DC operation
• Current rating must equal or exceed 0.4VA
• Actuator type and length must accommodate mechanical fit

Substitute parts are grouped into two categories:

1. Direct Manufacturer Equivalent (M2012ES1G01): Same base product number with identical electrical and mechanical specifications, differing only in termination style (Solder Lug vs. Quick Connect).

2. Cross-Manufacturer Alternatives (E-Switch 100SP1T6B series, C&K 7101P3Y1Z3QIS): Different manufacturers offering SPDT toggle switches with enhanced electrical ratings (5A at 120V AC) and compatible mechanical interfaces. These parts exceed the original specifications while maintaining panel mount compatibility and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

M2012ES1G01 (NKK Switches): This part is the manufacturer-recommended equivalent with identical electrical and mechanical specifications. Selection is appropriate for applications requiring exact performance matching. The primary difference is termination style (Solder Lug vs. Quick Connect), which affects assembly methodology but not electrical performance. Product status remains obsolete.

100SP1T6B11M3QEH and 100SP1T6B15M3QEH (E-Switch): These parts provide enhanced electrical ratings (5A at 120V AC) while maintaining 28V DC compatibility and panel mount configuration. Both are active products with current manufacturing support. The 100SP1T6B11M3QEH is packaged in bulk; the 100SP1T6B15M3QEH is packaged in trays. Panel cutout diameter is 6.35mm (0.15mm smaller than original), requiring panel modification for direct retrofit. Actuator length is 12.30mm (0.90mm longer than original).

7101P3Y1Z3QIS (C&K): This part offers the highest electrical life rating (100,000 cycles) with 5A at 120V AC capability. It maintains 28V DC compatibility and panel mount configuration. Panel cutout diameter is 6.35mm, and actuator length is 11.43mm (0.03mm longer than original). Product status is active. REACH status is affected, requiring compliance verification for regulated applications.

All substitute parts maintain ROHS3 compliance, operating temperature range, and MSL 1 rating. Selection should prioritize active product status for long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the M2012ES1G02 be directly replaced with M2012ES1G01?

A: Yes. Both parts share identical electrical specifications (0.4VA at 28V AC/DC), circuit configuration (SPDT On-On), and mechanical mounting parameters. The difference is termination style: M2012ES1G02 uses Quick Connect terminals, while M2012ES1G01 uses Solder Lug terminals. Assembly methodology differs, but electrical performance is equivalent.

Q: What are the mechanical compatibility considerations for E-Switch 100SP1T6B series substitution?

A: The E-Switch parts have a panel cutout diameter of 6.35mm compared to the original 6.50mm. This requires panel modification or use of a larger bushing. Actuator length is 12.30mm versus 11.40mm, which may affect clearance in confined spaces. Bushing thread (1/4-40) and operating temperature range remain compatible.

Q: Why do substitute parts have higher current ratings (5A) than the original (0.4VA)?

A: Higher current ratings indicate enhanced electrical capability. Substitutes with 5A ratings at 120V AC provide design margin for applications requiring greater electrical capacity while remaining compatible with the original 28V DC, 0.4VA requirement. This does not affect compatibility; it provides additional performance headroom.

Q: Is the C&K 7101P3Y1Z3QIS suitable for REACH-regulated applications?

A: The 7101P3Y1Z3QIS has REACH Affected status, requiring compliance verification against specific substance restrictions. The original M2012ES1G02 and M2012ES1G01 have REACH Unaffected status. Applications subject to REACH regulations should confirm substance compliance before selection.

Q: What is the significance of electrical life ratings (50,000 vs. 40,000 vs. 100,000 cycles)?

A: Electrical life indicates the number of switching cycles the part is rated to perform before degradation. The original M2012ES1G02 is rated for 50,000 cycles. E-Switch alternatives are rated for 40,000 cycles (lower margin), while the C&K 7101P3Y1Z3QIS is rated for 100,000 cycles (higher margin). Selection depends on application duty cycle requirements.

Q: Are all substitute parts available in the same packaging as the original?

A: No. The original M2012ES1G02 is packaged in bulk. M2012ES1G01 is also bulk packaged. E-Switch 100SP1T6B11M3QEH is bulk packaged, while 100SP1T6B15M3QEH is tray packaged. C&K 7101P3Y1Z3QIS is bulk packaged. Packaging selection affects order quantities and handling procedures.