MB2011SS1W01/UC Equivalent & Substitute Parts

Part Overview

The MB2011SS1W01/UC is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with 6A AC / 3A DC current rating at 125V AC / 30V DC. This component is designed for standard panel mount rear installation with solder lug termination and epoxy sealed terminals. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and redesign applications.

Substiute Parts

MB2011SS1W01/UC

NKK SwitchesIn Stock: 1011MB2011SS1W01/UC Datasheet

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MPA106F

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1661MPA106F Datasheet

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MPE106F

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1103MPE106F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2011SS1W01/UC is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Mom (Momentary)
• Mounting type: Panel Mount, Rear
• Termination style: Solder Lug
• Actuator type: Plunger for Cap

Electrical Compatibility Parameters:

• Current rating (AC): 6A minimum
• Voltage rating (AC): 125V minimum
• Current rating (DC): 3A minimum
• Voltage rating (DC): 30V minimum

Mechanical Compatibility Parameters:

• Panel cutout dimensions: Circular configuration with diameter tolerance allowing 6.35mm to 6.50mm
• Actuator marking: No marking requirement

The identified substitute parts MPA106F and MPE106F from TE Connectivity ALCOSWITCH Switches meet all mandatory matching parameters and electrical compatibility requirements. Both parts maintain SPDT circuit configuration, On-Mom function, panel mount rear installation, solder lug termination, and plunger actuator type. Electrical ratings of 6A AC / 4A DC at 125V AC / 28V DC exceed the minimum requirements of the original part.

Parameter Comparison

Engineering Selection Recommendations

Both MPA106F and MPE106F are active production parts from TE Connectivity ALCOSWITCH Switches and provide direct functional equivalence to the obsolete MB2011SS1W01/UC. Selection between the two substitute options should be based on application-specific environmental requirements:

MPA106F Selection Criteria:

• Standard environmental conditions without splash or moisture exposure requirements
• Applications requiring baseline ROHS3 compliance
• Cost-optimized solutions where enhanced ingress protection is not necessary

MPE106F Selection Criteria:

• Applications requiring splash proof ingress protection
• Environments with potential moisture or liquid exposure
• Applications requiring REACH compliance documentation
• Enhanced environmental durability specifications

Both substitute parts exceed the electrical performance of the original component, with 4A DC current rating versus 3A DC, and 50,000 cycle electrical life versus 25,000 cycles. The panel cutout dimension difference (6.35mm versus 6.50mm) represents a 0.15mm reduction and falls within standard mechanical tolerance ranges for circular panel mount installations.

Frequently Asked Questions (FAQ)

Q: Can MPA106F and MPE106F be used interchangeably with MB2011SS1W01/UC?

A: Yes. Both parts maintain identical SPDT circuit configuration, On-Mom function, 6A AC / 125V AC electrical rating, panel mount rear installation, solder lug termination, and plunger actuator type. The 4A DC rating of the substitutes exceeds the original 3A DC requirement. The 28V DC rating of the substitutes is slightly lower than the original 30V DC specification but remains within acceptable substitution parameters for most applications.

Q: What is the impact of the panel cutout dimension difference?

A: The substitute parts require a 6.35mm diameter circular cutout compared to the original 6.50mm specification. This 0.15mm difference is within standard mechanical tolerance ranges for panel mount installations. Existing panel cutouts at 6.50mm will accommodate 6.35mm diameter components with minimal clearance variation.

Q: Are there compliance differences between the substitute options?

A: Both MPA106F and MPE106F are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. MPE106F carries REACH Affected status, while MPA106F shows Vendor Undefined REACH status. MPE106F provides splash proof ingress protection, whereas MPA106F does not specify ingress protection.

Q: How do the operating temperature ranges compare?

A: The original MB2011SS1W01/UC operates from -30°C to 85°C. Both substitute parts operate from -20°C to 80°C, representing a 10°C reduction at both temperature extremes. Applications requiring operation below -20°C or above 80°C should not use these substitutes.

Q: What is the electrical life difference?

A: The original part is rated for 25,000 electrical cycles. Both substitute parts are rated for 50,000 electrical cycles, providing double the operational life expectancy.