MB2011SS4W01-BE Equivalent & Substitute Parts

Part Overview

The MB2011SS4W01-BE 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 a panel-mount rear terminal switch with a yellow round button actuator and epoxy sealed solder lug termination. The product is currently obsolete, making equivalent substitute parts necessary for ongoing maintenance, repair, and legacy system support applications.

Substiute Parts

MB2011SS4W01-BE

NKK SwitchesIn Stock: 865MB2011SS4W01-BE Datasheet

Current PartRFQ

MPA106F

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1661MPA106F Datasheet

SimilarRFQ

MPE106F

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1103MPE106F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2011SS4W01-BE is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Mom (Momentary)
• Current rating: 6A AC minimum
• Voltage rating: 125V AC minimum
• Mounting type: Panel Mount, Rear
• Termination style: Solder Lug
• Panel cutout diameter: Compatible with 6.35mm to 6.50mm range

Allowable Variations:

• DC current rating may exceed 3A (substitute parts rated 4A DC are acceptable)
• DC voltage rating may differ if 125V AC requirement is met
• Operating temperature range may be narrower than the original
• Electrical life rating may exceed 25,000 cycles
• Actuator type and color may differ if mechanical interface is compatible
• Ingress protection rating may be enhanced

The substitute parts MPA106F and MPE106F from TE Connectivity ALCOSWITCH Switches meet these criteria with equivalent SPDT momentary function, 6A AC / 4A DC current capability, 125V AC rating, panel mount rear termination, and compatible 6.35mm panel cutout dimensions.

Parameter Comparison

Engineering Selection Recommendations

Both MPA106F and MPE106F are active production alternatives to the obsolete MB2011SS4W01-BE. Selection between these two TE Connectivity options depends on environmental requirements:

MPA106F Selection Criteria:

• Standard environmental conditions without splash or moisture exposure
• Applications where basic ingress protection is sufficient
• REACH status is vendor undefined; verify compliance requirements with supplier if REACH documentation is mandatory

MPE106F Selection Criteria:

• Applications requiring splash-proof ingress protection
• Environments with potential moisture or liquid exposure
• REACH Affected status indicates full regulatory documentation availability
• Enhanced environmental durability compared to MPA106F

Both substitutes provide superior electrical life (50,000 cycles versus 25,000 cycles) and higher DC current capability (4A versus 3A), offering improved performance margins. Panel cutout diameter difference (6.35mm versus 6.50mm) requires mechanical verification for existing panel installations. Operating temperature range is narrower (-20°C to 80°C versus -30°C to 85°C); confirm compatibility with application temperature extremes.

Frequently Asked Questions (FAQ)

Q: Can MPA106F or MPE106F be used as direct replacements for MB2011SS4W01-BE?

A: Both parts are functionally equivalent for SPDT momentary switching at 6A AC / 125V AC. Panel cutout diameter differs slightly (6.35mm versus 6.50mm), requiring mechanical verification. Operating temperature range is narrower; confirm application requirements.

Q: What is the difference between MPA106F and MPE106F?

A: Both parts share identical electrical specifications (SPDT, 6A AC, 125V AC, 50,000 cycle electrical life). MPE106F includes splash-proof ingress protection; MPA106F does not. MPE106F has REACH Affected status with full documentation; MPA106F REACH status is vendor undefined.

Q: Are the DC current and voltage ratings important for substitution?

A: DC ratings are secondary selection criteria. The MB2011SS4W01-BE is rated 3A DC / 30V DC. Both substitutes are rated 4A DC / 28V DC. If the application operates exclusively at AC, DC ratings are not critical. For DC applications, verify that 28V DC maximum is acceptable for your circuit.

Q: Does the panel cutout diameter difference affect installation?

A: The original part requires a 6.50mm circular cutout; substitutes require 6.35mm. Existing panels with 6.50mm cutouts may have slight clearance differences. Mechanical fit must be verified before installation.

Q: Which substitute part should I choose for outdoor or wet environments?

A: MPE106F is specified as splash-proof and is the appropriate selection for environments with moisture or liquid exposure. MPA106F lacks ingress protection specification and is suitable for standard indoor conditions.

Q: Are both substitute parts RoHS3 compliant?

A: Yes, both MPA106F and MPE106F are ROHS3 compliant, matching the original MB2011SS4W01-BE compliance status.