MB2011SS1W01/UC-BA Equivalent & Substitute Parts

Part Overview

The MB2011SS1W01/UC-BA 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 functionally equivalent alternatives from active product lines to ensure design continuity and supply chain reliability.

Substiute Parts

MB2011SS1W01/UC-BA

NKK SwitchesIn Stock: 772MB2011SS1W01/UC-BA Datasheet

Current PartRFQ

MPA106F

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1661MPA106F Datasheet

SimilarRFQ

MPE106F

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1103MPE106F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Circuit Configuration: Must be SPDT
• Switch Function: Must be On-Momentary
• Current Rating (AC): Must support minimum 6A at 125V AC
• Mounting Type: Must be Panel Mount, Rear with solder lug termination
• Panel Cutout Diameter: Must accommodate 6.50mm circular cutout or smaller compatible dimension
• Compliance: Must maintain ROHS3 compliance

The identified substitute parts MPA106F and MPE106F from TE Connectivity ALCOSWITCH Switches series meet these core electrical and mechanical requirements. Both alternatives provide SPDT configuration with 6A AC rating at 125V, rear panel mount configuration, solder lug termination, and ROHS3 compliance. Minor variations in DC current rating (4A versus 3A), DC voltage rating (28V versus 30V), panel cutout diameter (6.35mm versus 6.50mm), and operating temperature range represent acceptable engineering tolerances for equivalent substitution in standard applications.

Parameter Comparison

Engineering Selection Recommendations

Both MPA106F and MPE106F are suitable substitutes for the obsolete MB2011SS1W01/UC-BA based on active product status and regulatory compliance. Selection between the two TE Connectivity alternatives should consider the following:

MPA106F is recommended for applications where REACH compliance status is not a critical requirement, as this parameter is listed as vendor undefined.

MPE106F is recommended for applications requiring confirmed REACH compliance, as this part is designated as REACH Affected. Additionally, MPE106F provides splash proof ingress protection, offering enhanced environmental durability compared to the original NKK component.

Both alternatives exceed the original electrical life specification (50,000 cycles versus 25,000 cycles), providing improved longevity. The marginal reduction in operating temperature range (-20°C to 80°C versus -30°C to 85°C) and panel cutout diameter (6.35mm versus 6.50mm) are acceptable for standard industrial applications. DC current rating improvement (4A versus 3A) and DC voltage rating reduction (28V versus 30V) remain within acceptable substitution parameters for equivalent functionality.

Frequently Asked Questions (FAQ)

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

A: Both TE Connectivity parts meet the core electrical and mechanical requirements for substitution. MPA106F and MPE106F share identical circuit configuration (SPDT), switch function (On-Momentary), AC current and voltage ratings (6A at 125V), mounting type (Panel Mount, Rear), and termination style (Solder Lug). Selection between them depends on specific compliance requirements for your application.

Q: What is the impact of the 6.35mm panel cutout diameter on MPA106F and MPE106F compared to the 6.50mm requirement of MB2011SS1W01/UC-BA?

A: The 6.35mm cutout diameter of both substitute parts is smaller than the original 6.50mm specification. This dimension difference may require panel modification or use of adapter hardware if the original panel cutout cannot be enlarged. Verify panel compatibility before component selection.

Q: Are there differences in operating temperature ranges between the original and substitute parts?

A: The MB2011SS1W01/UC-BA operates from -30°C to 85°C, while MPA106F and MPE106F operate from -20°C to 80°C. This represents a reduced temperature range of 10°C at the lower end and 5°C at the upper end. Confirm that your application requirements fall within the -20°C to 80°C range before substitution.

Q: What is the significance of the electrical life rating difference?

A: The substitute parts (MPA106F and MPE106F) provide 50,000 electrical cycles compared to 25,000 cycles for the original MB2011SS1W01/UC-BA. This represents a 100% improvement in electrical life, indicating enhanced durability and extended component lifespan in switching applications.

Q: How do the DC current and voltage ratings differ between the original and substitute parts?

A: The MB2011SS1W01/UC-BA is rated for 3A DC at 30V DC. Both MPA106F and MPE106F are rated for 4A DC at 28V DC. The higher DC current rating (4A) provides additional capacity, while the 2V reduction in DC voltage rating (28V versus 30V) remains acceptable for standard DC applications operating at or below 28V.

Q: What is the difference between MPA106F and MPE106F regarding compliance and environmental protection?

A: MPA106F has vendor undefined REACH status, while MPE106F is designated as REACH Affected. MPE106F additionally provides splash proof ingress protection, offering enhanced environmental durability. For applications requiring confirmed REACH compliance or environmental protection, MPE106F is the preferred selection.