KB25RKW01-01-JC Equivalent & Substitute Parts

Part Overview

The KB25RKW01-01-JC is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with neon red illumination. This component is rated for 1A at 125V AC and 30V DC, with a panel-mount front configuration and solder lug termination. The product is currently obsolete, making identification of suitable substitute components essential for system maintenance, repair, and redesign applications.

Substiute Parts

KB25RKW01-01-JC

NKK SwitchesIn Stock: 870KB25RKW01-01-JC Datasheet

Current PartRFQ

YB25RKW01-5C12-JC

NKK SwitchesIn Stock: 932YB25RKW01-5C12-JC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB25RKW01-01-JC is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must remain DPDT
• Switch function must remain On-Mom
• Voltage ratings must meet or exceed 125V AC and 30V DC
• Current rating must support the application load

Mechanical Compatibility Requirements:

• Mounting type must be Panel Mount, Front
• Actuator type must be Rectangular, Button
• Operating temperature range must encompass -25°C to 50°C

Interface Requirements:

• Termination style must be compatible with existing PCB or wiring connections
• Panel cutout dimensions must accommodate the substitute component

The YB25RKW01-5C12-JC qualifies as a substitute based on matching DPDT circuit configuration, On-Mom function, equivalent voltage ratings, panel-mount front configuration, and compatible operating temperature range. The substitute provides enhanced electrical and mechanical life ratings and maintains ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The YB25RKW01-5C12-JC is suitable as a substitute for the obsolete KB25RKW01-01-JC based on the following factors:

Compliance and Availability: The substitute maintains ROHS3 compliance and is currently in active production status with 905 units available in inventory, ensuring long-term supply chain viability compared to the obsolete original component.

Electrical Performance: Both components share identical DPDT circuit configuration, On-Mom function, and voltage ratings (125V AC / 30V DC). The substitute's 3A current rating exceeds the original 1A specification, providing additional capacity margin for the application.

Mechanical Compatibility: Panel-mount front configuration and rectangular button actuator type are identical between components. Both operate within the same temperature range (-25°C to 50°C).

Operational Durability: The substitute provides significantly enhanced mechanical life (1,000,000 cycles versus 100,000 cycles) and electrical life (100,000 cycles versus 50,000 cycles), extending component service intervals.

Interface Considerations: The substitute features LED red illumination with 12 VDC supply voltage, replacing the original neon red illumination at 110 VAC. The panel cutout diameter increases from 12.30mm to 16.00mm, requiring panel modification. Termination changes from solder lug to solder with quick connect 0.110" (2.8mm), necessitating wiring harness adaptation.

Frequently Asked Questions (FAQ)

Q: Can the YB25RKW01-5C12-JC directly replace the KB25RKW01-01-JC without modifications?

A: Electrical and functional compatibility is confirmed for DPDT On-Mom operation at 125V AC and 30V DC. However, physical installation requires panel cutout enlargement from 12.30mm to 16.00mm diameter. Termination style differs, requiring wiring harness reconfiguration. Illumination voltage supply must change from 110 VAC to 12 VDC.

Q: What are the key differences in illumination between these components?

A: The original KB25RKW01-01-JC uses neon red illumination requiring 110 VAC supply. The substitute YB25RKW01-5C12-JC uses LED red illumination with 12 VDC supply and integrated voltage reduction lighting, reducing power consumption and simplifying supply requirements.

Q: Does the higher current rating of the substitute affect compatibility?

A: The 3A rating of the YB25RKW01-5C12-JC exceeds the original 1A specification. This provides additional current capacity without affecting circuit operation at lower current levels. The application load must not exceed 1A to maintain original design margins.

Q: Are there mechanical life implications for this substitution?

A: The substitute provides 10x greater mechanical life (1,000,000 cycles versus 100,000 cycles) and 2x greater electrical life (100,000 cycles versus 50,000 cycles), resulting in extended component service life and reduced maintenance frequency.

Q: What compliance certifications apply to both components?

A: Both the KB25RKW01-01-JC and YB25RKW01-5C12-JC are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.