MB2085SS4W01 Equivalent & Substitute Parts

Part Overview

The MB2085SS4W01 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 is designed for panel mount, rear installation applications. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing maintenance, repair, and new design implementations where equivalent functionality is required.

Substiute Parts

MB2085SS4W01

NKK SwitchesIn Stock: 883MB2085SS4W01 Datasheet

Current PartRFQ

MPA206N

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1576MPA206N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2085SS4W01 is determined by the following critical parameters:

Circuit and Function Requirements: The substitute must maintain DPDT configuration with On-On switching function to preserve circuit behavior in the target application.

Electrical Ratings: The substitute must meet or exceed the AC voltage rating of 125V and AC current rating of 6A. DC ratings may vary within acceptable operational margins provided the substitute does not fall below the application's DC requirements.

Mechanical Compatibility: Panel mount, rear installation with solder lug termination is mandatory. The panel cutout diameter must accommodate the original 6.50mm specification or be compatible with existing panel modifications.

Actuator and Termination: Plunger actuator type with solder lug termination ensures compatibility with existing mechanical and electrical interfaces.

Environmental and Lifecycle Parameters: Operating temperature range, mechanical life, and electrical life specifications must be evaluated against application demands.

The MPA206N from TE Connectivity ALCOSWITCH Switches qualifies as a substitute based on matching circuit configuration, voltage ratings, current ratings within acceptable tolerance, mounting type, actuator type, and termination style.

Parameter Comparison

Engineering Selection Recommendations

The MPA206N is a qualified substitute for the MB2085SS4W01 based on the following engineering criteria:

Electrical Compatibility: Both components maintain identical AC voltage and current ratings at 125V and 6A respectively. The MPA206N provides superior DC current capability at 4A versus the original 3A specification, with DC voltage rating of 28V compared to the original 30V. These parameters remain within acceptable operational margins for most applications.

Mechanical and Interface Compatibility: Both switches feature identical mounting configuration (panel mount, rear), actuator type (plunger for cap), and termination style (solder lug). The panel cutout diameter difference of 0.15mm (6.50mm versus 6.35mm) is negligible and does not preclude mechanical installation in existing panel assemblies.

Regulatory and Compliance Status: Both components are ROHS3 compliant. The MPA206N carries active product status with established supply chain availability, whereas the MB2085SS4W01 is obsolete. The MPA206N is subject to REACH regulations, whereas the original part is REACH unaffected; however, this distinction does not impact functional substitution.

Lifecycle Performance: The MPA206N demonstrates superior electrical life rating at 50,000 cycles compared to the original 25,000 cycles, providing extended operational reliability. The operating temperature range of the MPA206N (-20°C to 80°C) is slightly narrower than the original (-30°C to 85°C) and must be evaluated against specific application temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can the MPA206N directly replace the MB2085SS4W01 in existing applications?

A: Yes, the MPA206N qualifies as a direct substitute based on matching DPDT circuit configuration, identical AC ratings (6A at 125V), compatible mounting and termination specifications, and equivalent plunger actuator design. Panel cutout diameter tolerance of 0.15mm is within acceptable mechanical variation.

Q: What are the key differences between these two components?

A: The primary differences are DC current rating (4A for MPA206N versus 3A for MB2085SS4W01), DC voltage rating (28V versus 30V), operating temperature range (MPA206N is -20°C to 80°C versus -30°C to 85°C for the original), and electrical life (50,000 cycles versus 25,000 cycles). The MPA206N offers superior cycle life performance.

Q: Are there temperature limitations when substituting the MPA206N?

A: The MPA206N operates within -20°C to 80°C, which is narrower than the original -30°C to 85°C range. Applications requiring operation below -20°C or above 80°C must evaluate whether the MPA206N meets specific environmental requirements.

Q: Does the panel cutout diameter difference affect installation?

A: The 0.15mm difference (6.50mm original versus 6.35mm for MPA206N) is negligible and does not prevent installation in existing panel assemblies designed for the MB2085SS4W01.

Q: What is the significance of the electrical life rating difference?

A: The MPA206N provides 50,000 electrical cycles compared to 25,000 for the original component, indicating extended operational life and potentially improved reliability in high-cycle applications.

Q: Are both components RoHS compliant?

A: Yes, both the MB2085SS4W01 and MPA206N are ROHS3 compliant, meeting current environmental and hazardous substance restrictions.

Q: What is the availability status of these components?

A: The MB2085SS4W01 is obsolete with 819 pieces in current inventory. The MPA206N is an active product with 1,470 pieces in inventory, providing established supply chain continuity.