KB25CKW01-FF Equivalent & Substitute Parts

Part Overview

The KB25CKW01-FF is a pushbutton switch manufactured by NKK Switches, featuring a DPDT (Double Pole Double Throw) circuit configuration with 1A current rating at 125V AC. This component is designed for standard panel mount applications with front-facing actuator orientation. The product is currently classified as obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and new design implementations where equivalent functionality is required.

Substiute Parts

KB25CKW01-FF

NKK SwitchesIn Stock: 814KB25CKW01-FF Datasheet

Current PartRFQ

YB25WCKW01-BB

NKK SwitchesIn Stock: 1218YB25WCKW01-BB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB25CKW01-FF is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit Configuration: DPDT
• Switch Function: On-Mom (Momentary)
• Voltage Rating - AC: 125V
• Voltage Rating - DC: 30V
• Mounting Type: Panel Mount, Front
• Actuator Type: Round, Button
• Operating Temperature Range: -25°C to 70°C

Allowable Variation Parameters:

• Current Rating: May exceed 1A (higher current rating provides backward compatibility)
• Mechanical Life: May exceed 100,000 cycles
• Electrical Life: May exceed 50,000 cycles
• Termination Style: May differ if electrical connection is maintained
• Panel Cutout Diameter: May differ within mechanical design constraints
• Actuator Color: May differ

The substitute part YB25WCKW01-BB meets all mandatory matching parameters while providing enhanced electrical and mechanical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The YB25WCKW01-BB is a qualified substitute for the KB25CKW01-FF based on the following engineering criteria:

Functional Compatibility: Both components share identical circuit configuration (DPDT), switch function (On-Mom), voltage ratings (125V AC / 30V DC), and operating temperature range. The substitute maintains full electrical compatibility for applications requiring the original part's specifications.

Performance Enhancement: The YB25WCKW01-BB provides superior reliability characteristics with 10x higher mechanical life (1,000,000 vs. 100,000 cycles) and doubled electrical life (100,000 vs. 50,000 cycles), extending component service life in high-cycle applications.

Compliance Status: Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Design Considerations: The substitute features a larger panel cutout diameter (16.00mm vs. 12.30mm) and enhanced ingress protection (IP65), requiring mechanical panel redesign and offering improved environmental resistance. Termination style differs, requiring circuit board layout modification.

Frequently Asked Questions (FAQ)

Q: Can YB25WCKW01-BB directly replace KB25CKW01-FF without circuit modification?

A: Electrical functionality is compatible. However, mechanical panel modifications are required due to the larger 16.00mm cutout diameter versus the original 12.30mm specification. Termination style differs (Solder Lug vs. Solder/Quick Connect), requiring circuit board connection redesign.

Q: What is the current rating difference, and does it affect compatibility?

A: The substitute provides 3A rating versus the original 1A rating. Higher current rating provides backward compatibility for applications operating at or below 1A. No derating is required for original design specifications.

Q: Are there mechanical life implications for high-cycle applications?

A: The substitute offers significantly extended mechanical life (1,000,000 cycles vs. 100,000 cycles), providing enhanced durability for applications exceeding the original component's cycle specifications.

Q: Does the IP65 ingress protection rating affect electrical performance?

A: IP65 rating indicates enhanced dust and water resistance. This is an additional feature that does not compromise electrical performance for standard applications and provides improved environmental protection.

Q: What packaging differences exist between these components?

A: KB25CKW01-FF is supplied with standard packaging. YB25WCKW01-BB is supplied in bulk packaging, affecting order quantities and handling procedures.