MB2011SS4W01/UC Equivalent & Substitute Parts

Part Overview

The MB2011SS4W01/UC is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with 6A AC and 3A DC current ratings at 125V AC and 30V DC respectively. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The switch employs a plunger actuator with solder lug termination and is rated for 100,000 mechanical cycles and 25,000 electrical cycles.

Substiute Parts

MB2011SS4W01/UC

NKK SwitchesIn Stock: 1156MB2011SS4W01/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 MB2011SS4W01/UC is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Mom
• AC current rating: 6A minimum
• AC voltage rating: 125V minimum
• Mounting type: Panel Mount, Rear
• Actuator type: Plunger for Cap
• Termination style: Solder Lug

Allowable Variation Parameters:

• DC current rating: Substitute must meet or exceed 3A
• DC voltage rating: Substitute must meet or exceed 30V
• Panel cutout diameter: Tolerance of ±0.15mm acceptable for standard panel mount applications
• Operating temperature range: Substitute must encompass or exceed the specified range
• Mechanical and electrical life ratings: Substitute values may differ provided they meet application requirements
• Product status: Active alternatives preferred for new designs

Both MPA106F and MPE106F from TE Connectivity ALCOSWITCH Switches meet all mandatory matching parameters and allowable variation criteria, qualifying them as direct substitutes for the obsolete MB2011SS4W01/UC.

Parameter Comparison

Engineering Selection Recommendations

Both MPA106F and MPE106F are qualified substitutes for the obsolete MB2011SS4W01/UC based on electrical and mechanical parameter alignment. Selection between the two TE Connectivity alternatives depends on application-specific requirements:

MPA106F Selection Criteria:

• Applications requiring standard ingress protection levels
• Designs with standard environmental exposure
• ROHS3 compliance requirement met; REACH status vendor undefined

MPE106F Selection Criteria:

• Applications requiring splash-proof ingress protection
• Designs with moisture or liquid exposure potential
• ROHS3 compliance requirement met; REACH affected status documented
• Enhanced environmental durability specification

Both substitutes provide superior electrical life ratings (50,000 cycles versus 25,000 cycles) and higher DC current capacity (4A versus 3A), offering improved performance margins over the original component. Panel cutout diameter reduction from 6.50mm to 6.35mm requires panel modification or adapter consideration for direct mechanical replacement in existing assemblies.

Frequently Asked Questions (FAQ)

Q: Can MPA106F and MPE106F be used interchangeably with MB2011SS4W01/UC?

A: Both parts meet the mandatory electrical and mechanical parameters for substitution. The primary difference is ingress protection: MPE106F provides splash-proof rating while MPA106F does not. Selection depends on environmental exposure requirements of the application.

Q: What is the impact of the panel cutout diameter difference (6.50mm to 6.35mm)?

A: The 0.15mm reduction requires panel modification or use of an adapter ring for mechanical fit in existing panel cutouts designed for the original 6.50mm diameter. New panel designs should accommodate the 6.35mm specification of the substitute parts.

Q: Are there temperature range limitations when substituting?

A: The substitute parts operate within -20°C to 80°C, which is narrower than the original -30°C to 85°C range. Applications requiring operation below -20°C or above 80°C must retain the original MB2011SS4W01/UC or identify alternative solutions.

Q: How do the electrical life ratings compare?

A: Substitute parts MPA106F and MPE106F are rated for 50,000 electrical cycles, double the 25,000-cycle rating of MB2011SS4W01/UC. This provides extended service life and improved reliability margins in high-cycle applications.

Q: What are the DC voltage and current differences?

A: The original part is rated 3A DC at 30V DC. Substitutes are rated 4A DC at 28V DC. The 1A increase in DC current capacity provides design margin, while the 2V reduction in DC voltage rating is acceptable for most industrial applications operating at standard 24V DC or lower.

Q: Are compliance certifications equivalent across all three parts?

A: All three parts are ROHS3 compliant and carry EAR99 ECCN classification. MPA106F has vendor-undefined REACH status, while MPE106F is REACH affected. Verify REACH compliance requirements for your specific application and jurisdiction.