MB2011SS1A01-BC Equivalent & Substitute Parts

Part Overview

The MB2011SS1A01-BC 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 classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design support and procurement continuity. The switch employs panel mount rear termination with solder lug connections and epoxy sealed terminals, designed for standard industrial control applications requiring momentary on-off switching functionality.

Substiute Parts

MB2011SS1A01-BC

NKK SwitchesIn Stock: 913MB2011SS1A01-BC Datasheet

Current PartRFQ

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 MB2011SS1A01-BC is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Mom (momentary)
• Current rating: Minimum 6A AC capability
• Voltage rating: Minimum 125V AC and 30V DC
• Mounting type: Panel Mount, Rear
• Termination style: Solder Lug
• Panel cutout diameter: Compatible with 6.50mm specification

Acceptable Variance Parameters:

• Actuator type: Alternative actuator designs (plunger for cap vs. round button) are acceptable provided mechanical interface compatibility is verified
• Operating temperature range: Substitute parts may have narrower ranges if minimum operating envelope encompasses the application requirement
• Electrical life: Substitute parts with equal or greater electrical life cycles are acceptable
• Mechanical life: Not specified for substitute parts; absence does not disqualify substitution

The substitute parts MPA106F and MPE106F meet the mandatory electrical and mechanical interface requirements while maintaining ROHS3 compliance and solder lug termination.

Parameter Comparison

Engineering Selection Recommendations

Both MPA106F and MPE106F are qualified substitutes for the obsolete MB2011SS1A01-BC based on electrical parameter alignment and active product status. Selection between the two substitute options depends on application environmental requirements:

MPA106F Selection Criteria:

• Standard industrial control applications without splash or moisture exposure requirements
• Active product status with established supply chain
• ROHS3 compliant; REACH status vendor undefined

MPE106F Selection Criteria:

• Applications requiring splash proof ingress protection
• Active product status with established supply chain
• ROHS3 compliant; REACH affected designation indicates full regulatory compliance documentation availability

Both substitutes provide superior electrical life (50,000 cycles vs. 25,000 cycles) compared to the original part. Panel cutout diameter variance (6.35mm vs. 6.50mm) requires mechanical interface verification for existing panel installations.

Frequently Asked Questions (FAQ)

Q: Can MPA106F or MPE106F be used as direct replacements for MB2011SS1A01-BC?

A: Both parts meet the mandatory electrical specifications (SPDT circuit, 6A AC / 125V AC, solder lug termination, panel mount rear configuration). Panel cutout diameter differs by 0.15mm (6.35mm vs. 6.50mm), requiring mechanical fit verification in existing panel installations. Actuator type differs (plunger for cap vs. round button), which may affect user interface ergonomics.

Q: What is the significance of the panel cutout diameter difference?

A: The MB2011SS1A01-BC requires a 6.50mm circular cutout, while both substitute parts require 6.35mm. Existing panels drilled for 6.50mm will accommodate the smaller 6.35mm diameter with clearance. New panel designs should specify 6.35mm to match substitute part requirements.

Q: How do the electrical life ratings compare?

A: The original MB2011SS1A01-BC is rated for 25,000 electrical cycles. Both MPA106F and MPE106F are rated for 50,000 electrical cycles, providing double the operational life expectancy for equivalent switching duty.

Q: What is the difference between MPA106F and MPE106F?

A: Both parts share identical electrical specifications and operating temperature range. MPE106F includes splash proof ingress protection, while MPA106F does not specify ingress protection. MPE106F carries REACH affected status, indicating full regulatory compliance documentation. Selection depends on environmental exposure requirements.

Q: Are there temperature range limitations with the substitute parts?

A: The original part operates from -30°C to 85°C. Both substitutes operate from -20°C to 80°C, representing a narrower range. Applications requiring operation below -20°C or above 80°C cannot use these substitutes.

Q: What is the DC voltage rating difference?

A: The original part is rated 30V DC, while both substitutes are rated 28V DC. Applications operating at 29-30V DC cannot use these substitutes. Standard industrial DC control circuits (24V, 12V) are unaffected.