KB25CKW01-A Equivalent & Substitute Parts

Part Overview

The KB25CKW01-A is a DPDT pushbutton switch manufactured by NKK Switches, rated for 1A at 125V AC and 30V DC. This component features panel mount front installation with a round black button actuator and solder lug termination. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing maintenance, repair, and design continuity in applications requiring equivalent switching functionality.

Substiute Parts

KB25CKW01-A

NKK SwitchesIn Stock: 1042KB25CKW01-A Datasheet

Current PartRFQ

YB25WCKW01-GB

NKK SwitchesIn Stock: 1079YB25WCKW01-GB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Mandatory Compatibility Parameters:

• Circuit configuration must be DPDT
• Switch function must be On-Mom
• Voltage ratings must meet or exceed: 125V AC and 30V DC
• Mounting type must be Panel Mount, Front
• Actuator type must be Round, Button
• Operating temperature range must encompass -25°C to 70°C

Flexible Parameters (allowing substitution with higher ratings):

• Current rating may exceed 1A
• Mechanical and electrical life cycles may exceed specified minimums
• Panel cutout diameter may differ if mechanical integration is feasible
• Termination style may differ if electrical connection is compatible

The YB25WCKW01-GB meets all mandatory compatibility parameters while providing enhanced electrical and mechanical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

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

Functional Equivalence: Both components 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 substitute provides superior current handling capacity (3A versus 1A), which is compatible with applications designed for the original 1A specification.

Product Status & Availability: The KB25CKW01-A is obsolete, while the YB25WCKW01-GB is active and maintains current manufacturing status, ensuring long-term supply chain reliability and technical support.

Compliance & Certification: Both components are ROHS3 compliant and REACH unaffected, maintaining regulatory alignment for industrial and commercial applications.

Performance Enhancement: The substitute offers extended mechanical life (1,000,000 cycles versus 100,000 cycles) and electrical life (100,000 cycles versus 50,000 cycles), providing improved durability for high-cycle applications.

Integration Considerations: The panel cutout diameter increases from 12.30mm to 16.00mm, requiring mechanical panel modification. Termination options expand to include quick connect capability alongside solder connection. IP65 ingress protection is added, suitable for environments requiring dust and moisture resistance.

Frequently Asked Questions (FAQ)

Q: Can the YB25WCKW01-GB directly replace the KB25CKW01-A without circuit modification?

A: Yes, from an electrical standpoint. Both components share identical DPDT configuration, On-Mom function, and voltage ratings (125V AC / 30V DC). The higher current rating (3A) of the substitute is compatible with circuits designed for 1A operation. However, mechanical panel integration requires enlargement of the cutout diameter from 12.30mm to 16.00mm.

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

A: The primary differences are: current rating (1A to 3A), mechanical life (100,000 to 1,000,000 cycles), electrical life (50,000 to 100,000 cycles), panel cutout diameter (12.30mm to 16.00mm), termination options (solder lug only versus solder and quick connect), ingress protection (none specified to IP65), and product status (obsolete to active).

Q: Is the larger panel cutout diameter a compatibility issue?

A: The 16.00mm cutout required by the YB25WCKW01-GB is larger than the 12.30mm cutout of the KB25CKW01-A. This requires mechanical modification to the panel. If panel modification is not feasible, alternative substitutes with matching cutout dimensions should be evaluated.

Q: Are both components RoHS compliant?

A: Yes. Both the KB25CKW01-A and YB25WCKW01-GB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the significance of the IP65 rating on the substitute?

A: The YB25WCKW01-GB provides IP65 ingress protection (dust tight, water resistant), while the KB25CKW01-A does not specify ingress protection. This makes the substitute suitable for applications requiring environmental sealing, though it is not required for direct electrical substitution.

Q: Can I use the quick connect termination option instead of solder lug?

A: The YB25WCKW01-GB offers both solder and quick connect termination options. Selection depends on your circuit board design and assembly process. Solder lug termination maintains compatibility with the original KB25CKW01-A solder connection method.