MB2011LS1W01-BC Equivalent & Substitute Parts

Part Overview

The MB2011LS1W01-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 active equivalent parts for new designs and ongoing production requirements. The switch employs panel mount rear termination with solder lug connections and epoxy sealed terminals for environmental protection.

Key Parameters

Parameter	Value
Manufacturer Part Number	MB2011LS1W01-BC
Manufacturer	NKK Switches
Circuit Configuration	SPDT
Switch Function	On-Mom (Momentary)
Current Rating (AC)	6A
Current Rating (DC)	3A
Voltage Rating (AC)	125V
Voltage Rating (DC)	30V
Mounting Type	Panel Mount, Rear
Termination Style	Solder Lug
Panel Cutout Diameter	6.50mm
Operating Temperature Range	-30°C to 85°C
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the MB2011LS1W01-BC is determined by the following critical parameters:

Primary Compatibility Criteria:

Circuit configuration: SPDT
Switch function: On-Mom (momentary action)
Termination style: Solder Lug
Mounting type: Panel Mount, Rear
AC voltage rating: 125V minimum
AC current rating: 6A minimum
Mechanical interface: Circular panel cutout compatible with 6.35mm to 6.50mm diameter

Identified Substitute Parts:

MBN15LS1W01-BC (NKK Switches) – Manufacturer-recommended substitute. Maintains identical electrical specifications and circuit topology. Classified as active product status with current manufacturing availability.

MPA106F and MPE106F (TE Connectivity ALCOSWITCH Switches) – Functionally equivalent alternatives meeting core electrical requirements. Both parts maintain SPDT configuration, 6A AC / 4A DC current capacity, 125V AC / 28V DC voltage ratings, and solder lug termination. MPE106F provides enhanced ingress protection (splash proof). Both are active products with established supply chains.

Parameter Comparison

Parameter	MB2011LS1W01-BC	MBN15LS1W01-BC	MPA106F	MPE106F
Manufacturer	NKK Switches	NKK Switches	TE Connectivity ALCOSWITCH	TE Connectivity ALCOSWITCH
Circuit	SPDT	SPDT	SPDT	SPDT
Switch Function	On-Mom	On-Mom	On-Mom	On-Mom
Current Rating (AC)	6A	6A	6A	6A
Current Rating (DC)	3A	3A	4A	4A
Voltage Rating (AC)	125V	125V	125V	125V
Voltage Rating (DC)	30V	30V	28V	28V
Mounting Type	Panel Mount, Rear	Panel Mount, Rear	Panel Mount, Rear	Panel Mount, Rear
Termination Style	Solder Lug	Solder Lug	Solder Lug	Solder Lug
Panel Cutout Diameter	6.50mm	6.50mm	6.35mm	6.35mm
Operating Temperature	-30°C to 85°C	-30°C to 85°C	-20°C to 80°C	-20°C to 80°C
Electrical Life	25,000 Cycles	25,000 Cycles	50,000 Cycles	50,000 Cycles
Ingress Protection	—	—	—	Splash Proof
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

MBN15LS1W01-BC is the primary substitute for direct replacement applications. As the manufacturer-recommended equivalent from NKK Switches, it maintains identical electrical and mechanical specifications while offering active product status and current manufacturing support. This part is suitable for applications requiring continuity with the original design topology.

MPA106F and MPE106F serve as cross-manufacturer alternatives for applications where supply chain diversification or enhanced performance characteristics are required. Both TE Connectivity parts exceed the original DC current specification (4A versus 3A) and provide extended electrical life (50,000 cycles versus 25,000 cycles). MPE106F additionally provides splash-proof ingress protection, making it suitable for applications with moisture exposure requirements.

All substitute parts maintain ROHS3 compliance and EAR99 export classification consistent with the original component. Panel cutout diameter differences (6.35mm versus 6.50mm) require mechanical verification for existing panel installations.

Frequently Asked Questions (FAQ)

Q: Can MPA106F or MPE106F be used as direct drop-in replacements for MB2011LS1W01-BC?

A: Electrical compatibility is confirmed across all critical parameters: SPDT circuit, 6A AC rating, 125V AC voltage, momentary function, and solder lug termination. Panel cutout diameter differs by 0.15mm (6.35mm versus 6.50mm), requiring mechanical clearance verification in existing panel installations. Both parts exceed DC current and electrical life specifications of the original component.

Q: What is the difference between MPA106F and MPE106F?

A: Both parts share identical electrical specifications and mounting characteristics. MPE106F provides splash-proof ingress protection, making it suitable for applications with moisture or liquid exposure. MPA106F lacks specified ingress protection. Selection depends on environmental requirements of the application.

Q: Why is the original MB2011LS1W01-BC classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. MBN15LS1W01-BC is the active replacement from NKK Switches, maintaining identical specifications while ensuring ongoing supply availability and manufacturing support.

Q: Are there temperature range considerations when substituting with TE Connectivity parts?

A: The original part operates from -30°C to 85°C, while MPA106F and MPE106F operate from -20°C to 80°C. Applications requiring operation below -20°C or above 80°C must use MBN15LS1W01-BC or the original MB2011LS1W01-BC if available from inventory.

Q: Do all substitute parts meet RoHS compliance requirements?

A: All identified substitutes (MBN15LS1W01-BC, MPA106F, MPE106F) are ROHS3 compliant, matching the compliance status of the original component.

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