NKK Switches M2011S2D1G01 Toggle Switch SPST Equivalent & Substitute Parts

Part Overview

The NKK Switches M2011S2D1G01 is a panel-mount toggle switch with SPST (Single Pole Single Throw) circuit configuration, rated for 0.4VA at 28V AC/DC. This component features a standard round actuator with solder lug termination and epoxy-sealed terminals for environmental protection. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and redesign applications where continued supply cannot be guaranteed.

Substiute Parts

M2011S2D1G01

NKK SwitchesIn Stock: 991M2011S2D1G01 Datasheet

Current PartRFQ

M2011S3S1G01

NKK SwitchesIn Stock: 1196M2011S3S1G01 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M2011S2D1G01 is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Circuit configuration (SPST), switch function (On-Off), current rating (0.4VA AC/DC), and voltage ratings (28V AC and DC) must be identical.

Mechanical Parameters: Mounting type (panel mount), actuator type (standard round), termination style (solder lug), panel cutout dimensions (circular 6.50mm), and bushing thread (1/4-40) must match exactly.

Environmental & Compliance Parameters: Operating temperature range (-30°C to 85°C), electrical life (50,000 cycles), and RoHS3 compliance status must be maintained.

The M2011S3S1G01 qualifies as a direct substitute based on full alignment with all specified parameters. The primary difference is actuator length (6.50mm versus 5.08mm on the original), which does not affect electrical or mechanical compatibility within the defined panel-mount interface.

Parameter Comparison

Engineering Selection Recommendations

The M2011S3S1G01 is a direct functional equivalent to the M2011S2D1G01. Both parts maintain ROHS3 compliance and identical electrical specifications (0.4VA at 28V AC/DC, SPST configuration). Both are classified as obsolete products from NKK Switches, indicating limited future availability.

Selection between these parts should be based on actuator length requirements for your specific panel assembly. The M2011S3S1G01 features a longer actuator (6.50mm) compared to the original M2011S2D1G01 (5.08mm). This difference may affect user ergonomics and panel aesthetics but does not impact electrical performance or mechanical mounting compatibility.

Both parts share identical panel cutout dimensions (6.50mm circular), bushing thread specification (1/4-40), and termination method (solder lug), ensuring drop-in compatibility within existing panel-mount installations.

Frequently Asked Questions (FAQ)

Q: Can the M2011S3S1G01 be used as a direct replacement for the M2011S2D1G01?

A: Yes. Both parts are electrically and mechanically equivalent across all critical parameters: SPST circuit, 0.4VA rating at 28V AC/DC, panel-mount configuration, solder lug termination, and identical panel cutout dimensions. The actuator length difference (6.50mm versus 5.08mm) does not affect compatibility within the panel interface.

Q: What is the significance of the actuator length difference?

A: Actuator length affects the physical protrusion of the toggle lever from the panel surface. The M2011S3S1G01 extends 1.42mm further than the original part. This may impact user interaction feel and panel aesthetics but does not affect electrical function or mounting compatibility.

Q: Are both parts still available for procurement?

A: Both the M2011S2D1G01 and M2011S3S1G01 are classified as obsolete. Inventory availability is limited. The M2011S3S1G01 currently has higher stock levels (1166 pcs) compared to the M2011S2D1G01 (914 pcs), making it the more readily available option for immediate procurement needs.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry identical environmental and regulatory classifications (ECCN: EAR99, HTSUS: 8536.50.9065).

Q: What is the difference between the packaging options?

A: The M2011S2D1G01 is supplied with standard packaging (indicated as "-"), while the M2011S3S1G01 is supplied in bulk packaging. This affects handling and storage but does not impact component performance or compatibility.