KB25CKW01 Equivalent & Substitute Parts

Part Overview

The KB25CKW01 is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with On-Momentary switch function. This component is rated for 1A at 125V AC and 30V DC, designed for standard panel mount front installation with a circular 12.30mm diameter cutout. The product is currently obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and new design applications where equivalent functionality is required.

Substiute Parts

KB25CKW01

NKK SwitchesIn Stock: 1185KB25CKW01 Datasheet

Current PartRFQ

YB25CKW01

NKK SwitchesIn Stock: 889YB25CKW01 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB25CKW01 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Circuit configuration must remain DPDT
• Switch function must be On-Momentary
• Voltage ratings must meet or exceed: 125V AC and 30V DC
• Current rating must support the application requirement
• Mounting type must be Panel Mount, Front
• Actuator type must be Plunger for Cap
• Operating temperature range must encompass -25°C to 70°C

Acceptable Variation Parameters:

• Current rating may exceed 1A (higher current capacity is acceptable)
• Mechanical and electrical life may exceed specified minimums
• Termination style may differ if electrical connection is maintained
• Panel cutout dimensions may vary if mechanical integration is feasible

The YB25CKW01 qualifies as a substitute based on these criteria, maintaining identical circuit configuration, switch function, voltage ratings, temperature range, and mounting specifications while providing enhanced current capacity and operational life.

Parameter Comparison

Engineering Selection Recommendations

The YB25CKW01 serves as a functional substitute for the obsolete KB25CKW01 based on electrical equivalence across all critical parameters. Both components maintain ROHS3 compliance and identical voltage/temperature specifications.

Electrical Compatibility: The YB25CKW01 provides superior electrical performance with 3A current capacity versus the original 1A specification, and doubled electrical life (100,000 cycles versus 50,000 cycles). This enhancement ensures compatibility with applications originally designed for the KB25CKW01 without electrical degradation.

Mechanical Integration Considerations: The panel cutout diameter increases from 12.30mm to 16.00mm. Applications utilizing the original component must accommodate this dimensional change through panel modification or mechanical redesign.

Termination Compatibility: The YB25CKW01 incorporates dual termination options (Solder and Quick Connect 0.110" 2.8mm) compared to the KB25CKW01's Solder Lug termination. Circuit integration must account for this termination style difference.

Product Status: The YB25CKW01 maintains Active product status with current manufacturing availability, ensuring long-term supply chain reliability compared to the obsolete KB25CKW01.

Frequently Asked Questions (FAQ)

Q: Can the YB25CKW01 directly replace the KB25CKW01 without any modifications?

A: Electrical substitution is direct. Mechanical integration requires assessment of panel cutout dimensions (12.30mm versus 16.00mm) and termination style compatibility (Solder Lug versus Solder/Quick Connect options).

Q: What is the primary reason the KB25CKW01 requires substitution?

A: The KB25CKW01 is classified as obsolete. The YB25CKW01 provides equivalent electrical functionality with enhanced performance characteristics and active manufacturing status.

Q: Are the voltage and current ratings compatible between these components?

A: Yes. The YB25CKW01 maintains identical voltage ratings (125V AC, 30V DC) and provides higher current capacity (3A versus 1A), making it electrically compatible for applications originally specified for the KB25CKW01.

Q: Does the panel cutout size difference affect electrical performance?

A: No. The panel cutout dimension change is mechanical only and does not affect electrical performance. Physical panel integration must accommodate the larger 16.00mm diameter requirement.

Q: Are both components RoHS compliant?

A: Yes. Both the KB25CKW01 and YB25CKW01 maintain ROHS3 compliance status.

Q: What termination options are available with the YB25CKW01?

A: The YB25CKW01 provides Solder and Quick Connect 0.110" (2.8mm) termination options, offering flexibility compared to the KB25CKW01's Solder Lug termination.

Q: How do the mechanical life ratings compare?

A: The YB25CKW01 provides 1,000,000 mechanical cycles versus the KB25CKW01's 100,000 cycles, representing a tenfold improvement in mechanical durability.