MB2085SS2W30-CC Equivalent & Substitute Parts

Part Overview

The MB2085SS2W30-CC is a DPDT pushbutton switch manufactured by NKK Switches, designed for standard through-hole, right-angle mounting applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support, maintenance, and design continuity. The switch is rated for 6A at 125V AC and 3A at 30V DC, with mechanical durability of 100,000 cycles and electrical life of 25,000 cycles. Due to its obsolete status, sourcing equivalent parts from active product lines ensures long-term component availability and supply chain reliability.

Substiute Parts

MB2085SS2W30-CC

NKK SwitchesIn Stock: 1251MB2085SS2W30-CC Datasheet

Current PartRFQ

8261LH9A3QE2

C&KIn Stock: 12428261LH9A3QE2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB2085SS2W30-CC is determined by strict alignment of the following critical parameters:

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

Electrical Ratings: The substitute must support minimum 6A at 120V AC and 28V DC to ensure safe operation within the original design envelope. The MB2085SS2W30-CC operates at 125V AC and 30V DC; the substitute 8261LH9A3QE2 operates at 120V AC and 28V DC, both within acceptable industrial tolerance ranges for AC and DC applications.

Mechanical and Physical Compatibility: Both parts feature round button actuators, PC pin termination, through-hole right-angle mounting, and epoxy sealed terminals, ensuring direct mechanical and electrical interface compatibility on printed circuit boards.

Environmental and Compliance Requirements: Both parts are ROHS3 compliant and rated for -30°C operating temperature minimum, meeting standard industrial environmental specifications.

The 8261LH9A3QE2 from C&K qualifies as a functional equivalent based on these parameters. Differences in electrical life (50,000 cycles versus 25,000 cycles) and operating temperature maximum (65°C versus 85°C) represent performance variations that do not preclude substitution in applications designed for the original part's specifications.

Parameter Comparison

Engineering Selection Recommendations

The 8261LH9A3QE2 is an active product from C&K, providing supply chain continuity for applications currently using the obsolete MB2085SS2W30-CC. Both components meet ROHS3 compliance requirements and share identical circuit topology, mounting configuration, and termination style.

Selection of the 8261LH9A3QE2 is appropriate for applications where:

The design operates within 120V AC and 28V DC electrical specifications, which encompass the majority of standard industrial control and consumer electronics applications.

The operating environment does not exceed 65°C ambient temperature, or thermal management ensures component temperature remains within this range.

The application benefits from the extended electrical life rating of 50,000 cycles provided by the C&K component.

Applications requiring operation above 65°C ambient temperature or at voltages exceeding 120V AC and 28V DC should be evaluated for alternative solutions outside this substitution group.

Frequently Asked Questions (FAQ)

Q: Can the 8261LH9A3QE2 directly replace the MB2085SS2W30-CC without circuit modification?

A: Yes. Both components share identical DPDT On-On circuit configuration, PC pin termination, and through-hole right-angle mounting. No circuit modification is required for direct substitution.

Q: What is the significance of the voltage rating difference (125V AC versus 120V AC)?

A: Industrial power systems typically operate at 120V AC nominal in North America. The 5V difference represents standard tolerance in AC supply voltage. The 8261LH9A3QE2 is rated for 120V AC, which is the standard industrial specification. Applications designed for 125V AC operation remain compatible with the 120V-rated substitute within normal voltage variation ranges.

Q: How do the DC voltage ratings compare?

A: The MB2085SS2W30-CC is rated for 30V DC, while the 8261LH9A3QE2 is rated for 28V DC. This 2V difference is within standard industrial tolerance. Applications operating at 28V DC or lower are fully compatible with the substitute.

Q: What is the impact of the different electrical life ratings?

A: The MB2085SS2W30-CC has an electrical life of 25,000 cycles, while the 8261LH9A3QE2 has 50,000 cycles. The substitute provides extended electrical life, which is advantageous for high-cycle applications. Applications designed for the original 25,000-cycle specification operate well within the substitute's rated life.

Q: Are there packaging differences between these parts?

A: The MB2085SS2W30-CC is supplied in standard packaging, while the 8261LH9A3QE2 is supplied in trays. Both are through-hole components with identical footprints. Tray packaging does not affect component performance or PCB compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the MB2085SS2W30-CC and 8261LH9A3QE2 are ROHS3 compliant. The 8261LH9A3QE2 is REACH Affected, while the original part is REACH Unaffected. For applications subject to REACH regulations, this distinction should be evaluated against specific regulatory requirements.

Q: What is the operating temperature consideration?

A: The MB2085SS2W30-CC operates from -30°C to 85°C, while the 8261LH9A3QE2 operates from -30°C to 65°C. Applications operating above 65°C ambient temperature require thermal analysis to confirm the substitute remains within its rated operating range.