M2011SS1W02-BE Toggle Switch SPST Equivalent & Substitute Parts

Part Overview

The M2011SS1W02-BE is a toggle switch manufactured by NKK Switches, classified as SPST (Single Pole Single Throw) with on-off functionality. This panel-mount component is rated for 6A AC at 125V and 4A DC at 30V. The part features a standard round actuator with yellow cap and quick connect termination (0.062" / 1.5mm). Currently listed as obsolete with 737 units in stock, this part requires identification of active equivalent alternatives to ensure design continuity and supply chain reliability.

Substiute Parts

M2011SS1W02-BE

NKK SwitchesIn Stock: 830M2011SS1W02-BE Datasheet

Current PartRFQ

M2011SS1W01-BE

NKK SwitchesIn Stock: 899M2011SS1W01-BE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M2011SS1W02-BE is determined by strict equivalence across the following critical parameters:

• Electrical Performance: Current and voltage ratings must match or exceed the original specification (6A AC / 125V AC minimum; 4A DC / 30V DC minimum)
• Circuit Configuration: SPST topology is mandatory for direct substitution
• Mechanical Interface: Panel cutout diameter (6.50mm), bushing thread (1/4-40), and mounting type (panel mount) must be identical
• Actuator Geometry: Standard round actuator with yellow cap ensures mechanical compatibility with existing panel layouts
• Operating Environment: Temperature range (-30°C to 85°C) and electrical life (25,000 cycles) establish baseline reliability requirements
• Compliance: RoHS and REACH compliance status ensures regulatory alignment

The M2011SS1W01-BE qualifies as a direct substitute based on identical electrical ratings, circuit configuration, mechanical interface dimensions, and environmental specifications. The primary difference—termination style (solder lug versus quick connect) and actuator length (10.50mm versus 14.60mm)—represents a design variation within the same product family rather than a functional limitation.

Parameter Comparison

Engineering Selection Recommendations

The M2011SS1W01-BE is the active equivalent for the obsolete M2011SS1W02-BE. Both parts share identical electrical specifications, circuit topology, and mechanical interface parameters. The M2011SS1W01-BE maintains active product status with NKK Switches, ensuring ongoing availability and supply chain continuity.

Selection between these parts depends on termination requirements: the M2011SS1W02-BE uses quick connect termination suitable for push-on connections, while the M2011SS1W01-BE uses solder lug termination for permanent board-level attachment. Actuator length differs by 3.00mm (14.60mm versus 10.50mm), which may affect panel depth considerations in space-constrained applications.

Both parts meet RoHS compliance requirements and operate across the identical temperature range (-30°C to 85°C) with equivalent electrical life ratings (25,000 cycles). For new designs or redesigns, the M2011SS1W01-BE is the recommended selection due to active status. For existing inventory management of the M2011SS1W02-BE, the M2011SS1W01-BE provides functional equivalence with termination and actuator length as the primary design considerations.

Frequently Asked Questions (FAQ)

Q: Can the M2011SS1W01-BE directly replace the M2011SS1W02-BE in existing assemblies?

A: Electrical and mechanical compatibility is confirmed. The primary consideration is termination style: the M2011SS1W02-BE uses quick connect (0.062" / 1.5mm) while the M2011SS1W01-BE uses solder lug. Panel cutout and bushing thread dimensions are identical (6.50mm diameter, 1/4-40 thread). Actuator length differs by 3.00mm, which may require panel depth evaluation.

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

A: The M2011SS1W02-BE has a 14.60mm actuator length compared to 10.50mm for the M2011SS1W01-BE. This 3.00mm difference affects the switch's protrusion from the panel surface. Applications with limited panel depth or specific ergonomic requirements should account for this variation during mechanical design review.

Q: Are the electrical ratings identical between these parts?

A: Yes. Both parts are rated for 6A AC at 125V and 4A DC at 30V. Operating temperature range (-30°C to 85°C) and electrical life (25,000 cycles) are identical. Both meet RoHS compliance and carry MSL 1 (Unlimited) moisture sensitivity classification.

Q: Why is the M2011SS1W02-BE listed as obsolete?

A: Product status reflects NKK Switches' current manufacturing and support status. The M2011SS1W01-BE is the active equivalent within the M series toggle switch family, ensuring continued availability for new and replacement applications.

Q: What termination method should I select for my application?

A: Quick connect termination (M2011SS1W02-BE) is suitable for temporary or field-replaceable connections. Solder lug termination (M2011SS1W01-BE) is appropriate for permanent board-level assembly. Select based on your assembly process and maintenance requirements.