EB2061P-CB Equivalent & Substitute Parts

Part Overview

The EB2061P-CB is an active DPDT pushbutton switch manufactured by NKK Switches, rated for 3A at 125V AC. This panel-mount rear component features a round white button actuator with PC pin termination and epoxy sealed terminals. The switch is designed for standard on-momentary applications with 100,000 mechanical cycles and 25,000 electrical cycles. Finding equivalent or substitute parts becomes necessary when managing inventory across multiple suppliers, addressing supply chain constraints, or standardizing component selections across product lines while maintaining identical electrical and mechanical performance.

Substiute Parts

EB2061P-CB

NKK SwitchesIn Stock: 824EB2061P-CB Datasheet

Current PartRFQ

1977740-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 9011977740-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The EB2061P-CB and its substitute 1977740-4 are functionally equivalent based on the following critical parameters:

• Circuit Configuration: Both are DPDT switches
• Electrical Ratings: Both rated 3A at 125V AC
• Switch Function: Both operate on-momentary
• Mounting Configuration: Both are panel-mount rear-mounted
• Termination: Both use PC pin termination
• Electrical Life: Both rated for 25,000 electrical cycles
• Compliance: Both are ROHS3 compliant with MSL 1 (Unlimited)
• HTSUS Classification: Identical (8536.50.9031)

These parameters define the substitution boundary. Differences in mechanical life, operating temperature range, actuator type, and panel cutout dimensions do not prevent functional substitution when the primary electrical and mounting requirements are met.

Parameter Comparison

Engineering Selection Recommendations

Both EB2061P-CB and 1977740-4 meet the core electrical and mechanical requirements for DPDT panel-mount pushbutton switch applications at 3A/125V AC. Selection between these parts should be based on:

1. Compliance Verification: Both parts are ROHS3 compliant and carry EAR99 ECCN classification, suitable for standard commercial applications.

2. Operating Environment: The EB2061P-CB operates within -10°C to 70°C, while the 1977740-4 extends to -20°C to 80°C. Applications requiring extended temperature operation should specify 1977740-4.

3. Actuator Characteristics: The EB2061P-CB features a round white button actuator with epoxy sealed terminals. The 1977740-4 uses a plunger-type actuator with tactile/audible feedback. Panel layout and user interface requirements determine which actuator style is appropriate.

4. Mechanical Durability: The EB2061P-CB specifies 100,000 mechanical cycles. The 1977740-4 does not provide mechanical life data. For high-cycle applications, the EB2061P-CB is the specified choice.

5. Supply Chain: Both parts are active products with current inventory. Selection may be driven by supplier availability and lead time requirements.

Frequently Asked Questions (FAQ)

Q: Can 1977740-4 directly replace EB2061P-CB in existing designs?

A: Yes, for applications where the electrical ratings (3A/125V AC DPDT) and mounting configuration (panel-mount rear) are the primary requirements. The actuator type and operating temperature range differ; verify these parameters against your application specifications before substitution.

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

A: The primary differences are actuator design (round button vs. plunger), operating temperature range (-10°C to 70°C vs. -20°C to 80°C), and mechanical life specification (100,000 cycles specified for EB2061P-CB only). Electrical performance and circuit configuration are identical.

Q: Are both parts RoHS compliant?

A: Yes, both EB2061P-CB and 1977740-4 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which part should I specify for applications requiring extended temperature operation?

A: The 1977740-4 supports -20°C to 80°C operation, compared to -10°C to 70°C for the EB2061P-CB. For applications outside the EB2061P-CB temperature range, specify 1977740-4.

Q: Do panel cutout dimensions differ between these parts?

A: The EB2061P-CB specifies a circular 6.35mm diameter panel cutout. The 1977740-4 panel cutout dimensions are not provided in available data. Verify mechanical fit before substitution in existing panel assemblies.

Q: What is the electrical life rating for both switches?

A: Both switches are rated for 25,000 electrical cycles at the specified 3A/125V AC load.