MB2085LS1W01 Equivalent & Substitute Parts

Part Overview

The MB2085LS1W01 is a DPDT pushbutton switch manufactured by NKK Switches, rated for 6A at 125V AC and 3A at 30V DC. This component features a plunger actuator with solder lug termination and epoxy sealed terminals, designed for panel mount rear installation with a 6.50mm circular cutout. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring DPDT switching functionality at these electrical ratings.

Substiute Parts

MB2085LS1W01

NKK SwitchesIn Stock: 950MB2085LS1W01 Datasheet

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MB2085SS1W01

NKK SwitchesIn Stock: 1374MB2085SS1W01 Datasheet

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8261S1HZQE2

C&KIn Stock: 8778261S1HZQE2 Datasheet

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8261SHZQE2

C&KIn Stock: 8058261SHZQE2 Datasheet

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8261SHZQE4

C&KIn Stock: 9688261SHZQE4 Datasheet

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8261SY3ZQE2

C&KIn Stock: 9658261SY3ZQE2 Datasheet

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MPA206N

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1576MPA206N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2085LS1W01 is determined by strict alignment with the following critical parameters:

Primary Substitution Criteria:

• Circuit configuration must be DPDT
• Switch function must be On-On
• Current rating must support minimum 6A AC operation
• Voltage rating must support minimum 125V AC
• Mounting type must be Panel Mount, Rear
• Termination style must be Solder Lug
• Panel cutout diameter must accommodate 6.50mm or smaller circular opening

Secondary Compatibility Factors:

• Operating temperature range should encompass the -30°C to 85°C specification or demonstrate suitability for the intended application environment
• Mechanical and electrical life ratings provide performance benchmarks for cycle durability

The substitute parts identified meet these core electrical and mechanical requirements, enabling direct functional replacement in applications designed for the MB2085LS1W01.

Parameter Comparison

Engineering Selection Recommendations

NKK Switches MB2085SS1W01 provides direct functional equivalence as an obsolete-status alternative within the same manufacturer family. Both parts share identical electrical ratings, mechanical life specifications, and operating temperature range. This option is suitable for applications where NKK Switches product continuity is preferred, though both parts are classified as obsolete.

C&K 8261 Series (8261S1HZQE2, 8261SHZQE2, 8261SHZQE4, 8261SY3ZQE2) represents active-status alternatives with enhanced electrical life ratings (50,000 cycles versus 25,000 cycles). These parts meet or exceed the primary electrical requirements with minor deviations in DC current rating (6A versus 3A) and operating temperature range (-30°C to 65°C versus -30°C to 85°C). The C&K series offers superior long-term availability and REACH compliance status. Panel cutout diameter compatibility requires verification for 6.35mm versus 6.50mm specifications.

TE Connectivity MPA206N provides an active-status substitute with matching 125V AC voltage rating and enhanced DC current capability (4A versus 3A). This part demonstrates broader operating temperature coverage (-20°C to 80°C) and superior electrical life (50,000 cycles). The MPA206N is suitable for applications requiring extended component availability and higher cycle durability.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring environmental and moisture sensitivity alignment with the original specification.

Frequently Asked Questions (FAQ)

Q: Can the C&K 8261 series parts substitute for MB2085LS1W01 in all applications?

A: The C&K 8261 series meets the core DPDT, 6A AC, and 125V AC requirements. However, verify panel cutout diameter compatibility (6.35mm versus 6.50mm) and confirm that the reduced operating temperature range (-30°C to 65°C) is acceptable for your application environment. DC current rating is enhanced (6A versus 3A), providing additional margin.

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

A: The MB2085LS1W01 requires a 6.50mm circular cutout. Most C&K alternatives (8261S1HZQE2, 8261SHZQE2, 8261SHZQE4) use 6.35mm cutouts. The 8261SY3ZQE2 and MPA206N variants accommodate 6.50mm and 6.35mm respectively. Verify mechanical fit before implementation.

Q: Why do substitute parts show higher electrical life ratings?

A: The substitute parts, particularly the C&K and TE Connectivity options, are active-status components with updated design specifications. The 50,000-cycle electrical life rating reflects current manufacturing standards and provides enhanced durability compared to the obsolete MB2085LS1W01 specification of 25,000 cycles.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory and environmental alignment with the original component.

Q: What packaging options are available for these substitutes?

A: MB2085SS1W01 is available in Bulk packaging. C&K 8261 series parts are supplied in Tray or Bulk configurations depending on part number. MPA206N is available in Bulk packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Is the TE Connectivity MPA206N suitable for high-temperature applications?

A: The MPA206N operates within -20°C to 80°C range, which is narrower than the MB2085LS1W01 specification (-30°C to 85°C). For applications requiring the full -30°C to 85°C range, the NKK Switches MB2085SS1W01 or C&K alternatives with confirmed temperature suitability are more appropriate.