KB25SKW01-EB Equivalent & Substitute Parts

Part Overview

The KB25SKW01-EB is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with a 1A current rating at 125V AC / 30V DC. This component is designed for standard panel mount applications with front-facing installation. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations.

Substiute Parts

KB25SKW01-EB

NKK SwitchesIn Stock: 1089KB25SKW01-EB Datasheet

Current PartRFQ

YB25SKW01-EB

NKK SwitchesIn Stock: 1195YB25SKW01-EB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB25SKW01-EB is determined by the following critical parameters:

• Circuit configuration must remain DPDT
• Switch function must be On-Mom (momentary operation)
• Voltage ratings must meet or exceed: 125V AC and 30V DC
• Current rating must support minimum 1A operation
• Mounting type must be Panel Mount, Front
• Actuator type must be Square Button
• Operating temperature range must encompass -25°C to 70°C
• Panel cutout dimensions must be compatible with installation requirements

The YB25SKW01-EB meets these substitution criteria with enhanced electrical and mechanical performance characteristics while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The YB25SKW01-EB serves as a functional substitute for the obsolete KB25SKW01-EB. Both components are manufactured by NKK Switches and maintain identical circuit configuration (DPDT), switch function (On-Mom), voltage ratings (125V AC / 30V DC), and operating temperature range (-25°C to 70°C).

The YB25SKW01-EB offers enhanced performance with a 3A current rating versus the original 1A specification, providing increased design margin for applications. Mechanical life extends to 1,000,000 cycles compared to 100,000 cycles in the original part, and electrical life doubles to 100,000 cycles.

Critical consideration: The panel cutout diameter increases from 12.30mm to 16.00mm, requiring panel modification for installation. Termination style changes from Solder Lug to Solder with Quick Connect options, necessitating connector compatibility verification in the target application.

The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the YB25SKW01-EB directly replace the KB25SKW01-EB without modifications?

A: Functional replacement is possible; however, panel cutout diameter differences (12.30mm versus 16.00mm) require mechanical panel modification. Termination style changes from Solder Lug to Solder/Quick Connect require connector compatibility assessment.

Q: Are the voltage and current ratings compatible?

A: Yes. The YB25SKW01-EB maintains identical voltage ratings (125V AC / 30V DC) and exceeds the current requirement with a 3A rating versus the original 1A specification.

Q: What is the impact of the increased mechanical and electrical life ratings?

A: The YB25SKW01-EB provides extended component longevity with 1,000,000 mechanical cycles and 100,000 electrical cycles, compared to 100,000 and 50,000 cycles respectively in the KB25SKW01-EB. This represents improved reliability for high-cycle applications.

Q: Are there compliance differences between these parts?

A: The KB25SKW01-EB is ROHS3 compliant. RoHS compliance status for the YB25SKW01-EB is not specified in available documentation and should be confirmed with the manufacturer for applications requiring regulatory compliance verification.

Q: What are the termination compatibility considerations?

A: The KB25SKW01-EB uses Solder Lug termination, while the YB25SKW01-EB offers Solder and Quick Connect - 0.110" (2.8mm) termination options. Existing circuit board designs using Solder Lug connections require modification or adapter solutions.