MB2085LS1W01-CB Equivalent & Substitute Parts

Part Overview

The MB2085LS1W01-CB is a DPDT pushbutton switch manufactured by NKK Switches, rated for 6A at 125V AC and 3A at 30V DC. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. The switch features panel mount rear termination with solder lug connections and epoxy sealed terminals, suitable for applications requiring reliable on-on switching functionality.

Substiute Parts

MB2085LS1W01-CB

NKK SwitchesIn Stock: 974MB2085LS1W01-CB Datasheet

Current PartRFQ

8261S1HZQE2

C&KIn Stock: 8778261S1HZQE2 Datasheet

SimilarRFQ

8261SHZQE2

C&KIn Stock: 8058261SHZQE2 Datasheet

SimilarRFQ

8261SHZQE4

C&KIn Stock: 9688261SHZQE4 Datasheet

SimilarRFQ

MPA206N

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1576MPA206N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2085LS1W01-CB is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: DPDT
• Switch function: On-On
• Mounting type: Panel Mount, Rear
• Termination style: Solder Lug
• Current rating: 6A minimum (AC)
• Voltage rating: 125V AC minimum
• Panel cutout diameter: 6.35mm to 6.50mm (compatible with standard panel openings)

Acceptable Variation Parameters:

• DC voltage rating: 28V to 30V acceptable
• DC current rating: 3A to 4A acceptable
• Operating temperature range: -30°C minimum acceptable
• Electrical life: 25,000 cycles minimum acceptable
• Actuator color: May vary
• Packaging format: Tray or Bulk acceptable

All substitute parts listed maintain ROHS3 compliance and MSL Level 1 rating, ensuring environmental and moisture sensitivity compatibility with the original component.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are active products with current manufacturing support, providing supply chain continuity for the obsolete MB2085LS1W01-CB. Selection among substitutes should be based on the following criteria:

C&K 8261 Series (8261S1HZQE2, 8261SHZQE2, 8261SHZQE4): These parts offer superior electrical life ratings (50,000 cycles versus 25,000 cycles) and are available in multiple packaging formats. The 8261SHZQE4 variant provides orange actuator marking for visual identification. All C&K substitutes are REACH Affected, requiring compliance verification in regulated applications.

TE Connectivity MPA206N: This part matches the original 125V AC voltage rating exactly and provides the highest DC current capability (4A). The MPA206N operates across a -20°C to 80°C temperature range, suitable for most industrial applications. REACH Affected status applies.

Panel Cutout Consideration: The original MB2085LS1W01-CB specifies a 6.50mm circular cutout, while all substitutes require 6.35mm. Existing panel openings may require modification or use of adapter rings for mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the C&K 8261 series parts directly replace the MB2085LS1W01-CB without panel modification?

A: The C&K parts require a 6.35mm panel cutout versus the original 6.50mm specification. Direct mechanical substitution without panel modification is not possible. Adapter rings or panel drilling may be required.

Q: What is the significance of the different actuator colors in the C&K 8261 series?

A: Actuator color variation (black in 8261S1HZQE2 and 8261SHZQE2, orange in 8261SHZQE4) is a cosmetic distinction only. All variants maintain identical electrical specifications and switching characteristics.

Q: Are the C&K and TE Connectivity substitutes suitable for DC-only applications?

A: Yes. All substitute parts exceed the original 3A DC rating at 30V. The C&K parts provide 6A DC at 28V, and the TE Connectivity MPA206N provides 4A DC at 28V. DC voltage ratings of 28V are acceptable for applications originally specified at 30V DC.

Q: What is the impact of the reduced operating temperature range in C&K substitutes?

A: The C&K 8261 series operates from -30°C to 65°C, compared to the original -30°C to 85°C range. Applications requiring operation above 65°C should use the TE Connectivity MPA206N (-20°C to 80°C) or verify that the reduced upper temperature limit is acceptable for the specific application.

Q: How do packaging options affect component selection?

A: The C&K 8261S1HZQE2 is supplied in Tray packaging, while 8261SHZQE2 is supplied in Bulk, and 8261SHZQE4 is supplied in Tray. The TE Connectivity MPA206N is supplied in Bulk. Packaging selection depends on procurement volume and handling requirements; electrical performance is identical across packaging formats.

Q: What is the REACH Affected designation, and does it impact substitution?

A: REACH Affected status indicates the component may contain substances of concern under EU chemical regulations. Applications subject to REACH compliance requirements must verify that substitute parts meet applicable restrictions. The original MB2085LS1W01-CB is REACH Unaffected, while all substitutes are REACH Affected.