EB2085P-BA Equivalent & Substitute Parts

Part Overview

The EB2085P-BA is a pushbutton switch manufactured by NKK Switches, classified as a DPDT (Double Pole Double Throw) standard panel mount switch rated for 3A at 125V AC. This component is currently in active product status with 1068 units in stock. The switch features a round black button actuator with PC pin termination and epoxy sealed terminals, designed for rear panel mounting applications. Finding equivalent or substitute parts becomes necessary when addressing supply chain constraints, design revisions, or when alternative sourcing options are required for production planning.

Key Parameters

Parameter	Value
Circuit Configuration	DPDT (Double Pole Double Throw)
Switch Function	On-On
Current Rating	3A AC
Voltage Rating	125V AC
Mounting Type	Panel Mount, Rear
Termination Style	PC Pin
Electrical Life	25,000 Cycles
Operating Temperature Range	-10°C to 70°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the EB2085P-BA is determined by the following critical parameters:

Circuit Configuration: Must be DPDT to maintain electrical functionality
Switch Function: Must be On-On to preserve operational behavior
Current Rating: Must support minimum 3A AC
Voltage Rating: Must support minimum 125V AC
Mounting Type: Must be Panel Mount, Rear to ensure mechanical compatibility
Termination Style: Must be PC Pin for PCB integration
Electrical Life: Must meet or exceed 25,000 cycles

The substitute part 1977740-3 from TE Connectivity ALCOSWITCH Switches meets all mandatory electrical and mechanical parameters required for direct substitution in applications requiring DPDT pushbutton switches with identical current and voltage ratings.

Parameter Comparison

Parameter	EB2085P-BA (NKK Switches)	1977740-3 (TE Connectivity ALCOSWITCH)	Compatibility
Circuit Configuration	DPDT	DPDT	Match
Switch Function	On-On	On-On	Match
Current Rating (AC)	3A	3A	Match
Voltage Rating (AC)	125V	125V	Match
Mounting Type	Panel Mount, Rear	Panel Mount, Rear	Match
Termination Style	PC Pin	PC Pin	Match
Electrical Life	25,000 Cycles	25,000 Cycles	Match
Operating Temperature Range	-10°C to 70°C	-20°C to 80°C	Substitute exceeds range
Mechanical Life	100,000 Cycles	Not specified	Data not available for substitute
RoHS Status	ROHS3 Compliant	Not applicable	Compliance difference noted
Product Status	Active	Obsolete	Status difference noted

Engineering Selection Recommendations

The EB2085P-BA remains the preferred choice for new designs and ongoing production due to its active product status and ROHS3 compliance certification. The part is currently in stock with adequate inventory (1068 units).

The 1977740-3 from TE Connectivity ALCOSWITCH Switches qualifies as an electrical and mechanical equivalent based on matching circuit configuration, current rating, voltage rating, mounting type, and termination style. However, this substitute carries an obsolete product status designation, which may impact long-term availability and supply chain reliability. Additionally, the EB2085P-BA carries explicit ROHS3 compliance certification, while the 1977740-3 lists RoHS status as not applicable, introducing potential regulatory compliance considerations for applications subject to RoHS requirements.

Selection between these parts should prioritize the EB2085P-BA for applications requiring regulatory compliance assurance and sustained component availability.

Frequently Asked Questions (FAQ)

Q: Can the 1977740-3 be used as a direct replacement for the EB2085P-BA?

A: The 1977740-3 meets all mandatory electrical parameters (DPDT circuit, 3A AC, 125V AC) and mechanical requirements (panel mount rear, PC pin termination). From a functional standpoint, substitution is electrically and mechanically viable. However, the obsolete product status of the 1977740-3 presents supply chain risk.

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

A: Both parts share identical circuit configuration, current rating, voltage rating, mounting type, and termination style. The EB2085P-BA offers a wider mechanical life specification (100,000 cycles versus unspecified for the substitute), active product status, and explicit ROHS3 compliance. The 1977740-3 provides a wider operating temperature range (-20°C to 80°C versus -10°C to 70°C).

Q: Are there any compliance concerns with substitution?

A: The EB2085P-BA carries ROHS3 compliance certification. The 1977740-3 lists RoHS status as not applicable. Applications subject to RoHS regulatory requirements should verify compliance documentation before selecting the substitute part.

Q: Does the wider operating temperature range of the 1977740-3 affect substitution decisions?

A: The 1977740-3 operating range (-20°C to 80°C) exceeds the EB2085P-BA specification (-10°C to 70°C). For applications operating within the EB2085P-BA range, this difference is not a limiting factor. For applications requiring extended temperature operation beyond the EB2085P-BA specification, the 1977740-3 may offer additional capability.

Q: What should be considered regarding the obsolete status of the 1977740-3?

A: Obsolete product status indicates the manufacturer has discontinued production. While existing inventory may be available through distributors, long-term supply cannot be assured. For production designs requiring sustained component availability, the active-status EB2085P-BA is the recommended choice.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message