MB2011SD1W01 Equivalent & Substitute Parts

Part Overview

The MB2011SD1W01 is a pushbutton switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 6A at 125V AC and 3A at 30V DC. Manufactured by NKK Switches, this component features a plunger actuator with solder lug termination and panel mount rear installation. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production or maintenance applications.

Substiute Parts

MB2011SD1W01

NKK SwitchesIn Stock: 874MB2011SD1W01 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 MB2011SD1W01 is determined by strict alignment with the following electrical and mechanical parameters:

Critical Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Mom (momentary)
• AC current rating: 6A minimum
• AC voltage rating: 125V minimum
• DC current rating: 3A minimum
• DC voltage rating: 30V minimum
• Mounting type: Panel Mount, Rear
• Actuator type: Plunger for Cap
• Termination style: Solder Lug

Acceptable Variation Parameters:

• Panel cutout diameter: ±0.15mm tolerance acceptable for standard panel mount applications
• Operating temperature range: Substitute may have narrower range if it encompasses the application environment
• Mechanical and electrical life: Substitute may exceed specified cycles
• Product status: Active substitutes are preferred for obsolete parts

The identified substitutes MPA106F and MPE106F meet all critical electrical parameters and mechanical mounting requirements. Both are active products from TE Connectivity ALCOSWITCH Switches, providing supply continuity for the obsolete MB2011SD1W01.

Parameter Comparison

Engineering Selection Recommendations

Both MPA106F and MPE106F are qualified substitutes for the obsolete MB2011SD1W01 based on electrical and mechanical parameter alignment. Selection between the two active alternatives depends on application-specific requirements:

MPA106F Selection Criteria:

• Applications requiring standard ingress protection
• Designs with REACH compliance flexibility (vendor undefined status)
• Standard environmental conditions within -20°C to 80°C range

MPE106F Selection Criteria:

• Applications requiring splash proof ingress protection
• Designs requiring explicit REACH compliance documentation
• Standard environmental conditions within -20°C to 80°C range

Both substitutes provide superior electrical life (50,000 cycles versus 25,000 cycles) and higher DC current rating (4A versus 3A) compared to the original part. Panel cutout diameter difference (6.35mm versus 6.50mm) requires panel modification or use of adapter hardware for direct mechanical replacement.

All three parts maintain ROHS3 compliance and identical AC electrical ratings (6A at 125V), ensuring functional equivalence in AC-rated applications.

Frequently Asked Questions (FAQ)

Q: Can MPA106F and MPE106F be used interchangeably with MB2011SD1W01?

A: Both are electrical and functional equivalents. The primary difference is panel cutout diameter (6.35mm versus 6.50mm) and ingress protection rating. MPE106F provides splash proof protection; MPA106F does not. Panel modification or adapter hardware may be required for mechanical installation.

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

A: The MB2011SD1W01 requires a 6.50mm circular cutout; both substitutes require 6.35mm. Existing panels designed for the original part require enlargement or use of adapter bushings for the substitute parts.

Q: Are the DC voltage and current ratings of the substitutes sufficient?

A: Yes. The substitutes are rated 4A at 28V DC, exceeding the original part's 3A at 30V DC specification. Applications operating at or below the original ratings are fully compatible.

Q: What is the significance of the operating temperature range difference?

A: The original part operates -30°C to 85°C; substitutes operate -20°C to 80°C. Applications requiring operation below -20°C or above 80°C are not suitable for the substitute parts.

Q: Does REACH compliance status affect part selection?

A: REACH status indicates regulatory documentation availability. MPE106F is REACH Affected (documented); MPA106F is Vendor Undefined. Applications requiring explicit REACH compliance documentation should specify MPE106F.

Q: What is the advantage of the higher electrical life rating in the substitutes?

A: Both substitutes provide 50,000 electrical cycles versus 25,000 cycles for the original part, doubling the rated operational life and improving long-term reliability in high-cycle applications.