MB2061LS1W01/U Equivalent & Substitute Parts

Part Overview

The MB2061LS1W01/U is a DPDT pushbutton switch manufactured by NKK Switches, designed for panel mount rear installation with 6A AC and 3A DC current capacity at 125V AC and 30V DC respectively. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production, maintenance, and system upgrades. The switch features a plunger actuator with solder lug termination and epoxy sealed terminals, suitable for applications requiring reliable momentary contact switching.

Key Parameters

Parameter	Value
Circuit Configuration	DPDT (Double Pole Double Throw)
Switch Function	On-Momentary
Current Rating (AC)	6A
Current Rating (DC)	3A
Voltage Rating (AC)	125V
Voltage Rating (DC)	30V
Mounting Type	Panel Mount, Rear
Actuator Type	Plunger for Cap
Termination Style	Solder Lug
Panel Cutout Diameter	Circular - 6.50mm
Operating Temperature Range	-30°C to 85°C
Mechanical Life	100,000 Cycles
Electrical Life	25,000 Cycles
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MB2061LS1W01/U is determined by the following critical parameters:

Mandatory Matching Criteria:

Circuit configuration: DPDT
Switch function: On-Momentary
AC current rating: 6A minimum
AC voltage rating: 125V minimum
Mounting type: Panel Mount, Rear
Actuator type: Plunger for Cap
Termination style: Solder Lug

Allowable Variations:

DC current rating: Substitute parts may exceed 3A (MPA206R and MPE206R both provide 4A DC)
DC voltage rating: Substitute parts may exceed 30V (MPA206R and MPE206R both provide 28V DC)
Panel cutout diameter: Substitute parts with 6.35mm diameter are compatible with 6.50mm cutout applications
Operating temperature range: Substitute parts with narrower ranges (-20°C to 80°C) are acceptable for applications within this reduced range
Electrical life: Substitute parts with higher electrical life ratings (50,000 cycles) exceed minimum requirements
Mechanical life: Substitute parts without specified mechanical life do not disqualify substitution

The MPA206R and MPE206R from TE Connectivity ALCOSWITCH Switches meet all mandatory criteria and provide enhanced DC current and electrical life specifications.

Parameter Comparison

Parameter	MB2061LS1W01/U (NKK)	MPA206R (TE Connectivity)	MPE206R (TE Connectivity)
Manufacturer	NKK Switches	TE Connectivity ALCOSWITCH Switches	TE Connectivity ALCOSWITCH Switches
Product Status	Obsolete	Active	Active
Circuit Configuration	DPDT	DPDT	DPDT
Switch Function	On-Momentary	On-Momentary	On-Momentary
Current Rating (AC)	6A	6A	6A
Current Rating (DC)	3A	4A	4A
Voltage Rating (AC)	125V	125V	125V
Voltage Rating (DC)	30V	28V	28V
Mounting Type	Panel Mount, Rear	Panel Mount, Rear	Panel Mount, Rear
Actuator Type	Plunger for Cap	Plunger for Cap	Plunger for Cap
Termination Style	Solder Lug	Solder Lug	Solder Lug
Panel Cutout Diameter	6.50mm	6.35mm	6.35mm
Operating Temperature Range	-30°C to 85°C	-20°C to 80°C	-20°C to 80°C
Electrical Life	25,000 Cycles	50,000 Cycles	50,000 Cycles
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Ingress Protection	Not specified	Not specified	Splash Proof

Engineering Selection Recommendations

Both MPA206R and MPE206R are active production components from TE Connectivity ALCOSWITCH Switches and provide direct functional equivalence to the obsolete MB2061LS1W01/U. Both substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with current manufacturing and environmental standards.

MPA206R is suitable for standard applications where the specified electrical and mechanical parameters of the original component are required. The 6.35mm panel cutout diameter is compatible with existing 6.50mm cutout installations.

MPE206R provides identical electrical specifications to MPA206R with the addition of splash proof ingress protection, making it the preferred selection for applications exposed to moisture or washdown environments.

The enhanced electrical life rating of both substitute parts (50,000 cycles versus 25,000 cycles) provides extended service life compared to the original component.

Frequently Asked Questions (FAQ)

Q: Can MPA206R or MPE206R be used as direct replacements for MB2061LS1W01/U?

A: Yes. Both parts meet all mandatory electrical and mechanical specifications: DPDT circuit, 6A AC at 125V, on-momentary function, plunger actuator, solder lug termination, and panel mount rear installation. The 6.35mm cutout diameter is compatible with 6.50mm panel cutouts.

Q: What is the difference between MPA206R and MPE206R?

A: Both parts have identical electrical specifications. MPE206R includes splash proof ingress protection, while MPA206R does not specify ingress protection. Select MPE206R for applications requiring moisture resistance.

Q: Are there any temperature range limitations when substituting?

A: Both substitute parts operate from -20°C to 80°C, which is narrower than the original MB2061LS1W01/U range of -30°C to 85°C. Verify that your application operates within the -20°C to 80°C range before substitution.

Q: Do the substitute parts have the same panel cutout requirements?

A: The substitute parts require a 6.35mm circular cutout, while the original requires 6.50mm. Existing 6.50mm cutouts will accommodate the 6.35mm diameter substitute parts without modification.

Q: What is the electrical life difference between the original and substitute parts?

A: The MB2061LS1W01/U has 25,000 electrical life cycles, while MPA206R and MPE206R both provide 50,000 cycles, doubling the rated electrical life.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both MPA206R and MPE206R are ROHS3 compliant with MSL 1 rating, matching the compliance status of the original component.

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