KB25SKW01-5F12-AB Equivalent & Substitute Parts

Part Overview

The KB25SKW01-5F12-AB is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with illuminated panel mount design. This component is classified as Obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system maintenance and new design implementations. The switch is rated for 1A at 125V AC and includes green LED illumination at 12VDC nominal voltage.

Substiute Parts

KB25SKW01-5F12-AB

NKK SwitchesIn Stock: 1169KB25SKW01-5F12-AB Datasheet

Current PartRFQ

YB25SKW01-5F12-AB

NKK SwitchesIn Stock: 776YB25SKW01-5F12-AB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB25SKW01-5F12-AB 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
• Illumination Type: LED, Green
• Operating Temperature Range: -25°C to 50°C

Allowable Variation Parameters:

• Current Rating: May exceed 1A (higher ratings are compatible)
• Illumination Voltage: May differ if circuit design accommodates
• Mechanical/Electrical Life: May exceed specified values
• Panel Cutout Diameter: Requires mechanical compatibility assessment
• Termination Style: May differ if electrical connection is achievable
• Product Status: Active status preferred for ongoing availability

The YB25SKW01-5F12-AB meets the mandatory matching criteria while offering enhanced electrical characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The YB25SKW01-5F12-AB is a functional substitute for the obsolete KB25SKW01-5F12-AB based on matching circuit configuration, switch function, and voltage ratings. The substitute offers superior electrical performance with 3A current rating versus 1A, and extended mechanical life (1,000,000 cycles versus 100,000 cycles).

Implementation Considerations:

The YB25SKW01-5F12-AB differs in three areas requiring engineering assessment:

1. Illumination Voltage: The substitute operates at 2VDC versus 12VDC. Circuit design must be evaluated to determine if the lower voltage requirement is compatible with existing power supply architecture or if modification is necessary.

2. Termination Style: The substitute includes Quick Connect terminals (0.110" / 2.8mm) in addition to solder capability, whereas the original uses solder lug only. This provides connection flexibility but requires verification of PCB or harness compatibility.

3. Panel Cutout Diameter: The substitute requires a 16.00mm circular cutout versus 12.30mm for the original. Panel modification or adapter hardware may be necessary for mechanical installation.

The substitute maintains active product status with NKK Switches, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the YB25SKW01-5F12-AB directly replace the KB25SKW01-5F12-AB without modifications?

A: Electrical substitution is valid for the core switch function. However, three parameters differ: illumination voltage (2VDC vs. 12VDC), termination style (Quick Connect vs. Solder Lug), and panel cutout diameter (16.00mm vs. 12.30mm). Assessment of your specific circuit design and mechanical installation is required.

Q: What is the impact of the different illumination voltage?

A: The substitute's 2VDC illumination requirement differs from the original's 12VDC. If your circuit supplies 12VDC to the illumination circuit, the substitute LED may not function correctly. Circuit modification or a voltage regulator may be necessary.

Q: Does the larger panel cutout diameter affect compatibility?

A: Yes. The substitute requires a 16.00mm diameter hole versus 12.30mm for the original. If your panel is already drilled for the original part, enlargement or a mechanical adapter will be required for the substitute.

Q: Are the electrical ratings of the substitute compatible with my application?

A: The substitute's 3A rating exceeds the original's 1A rating, making it suitable for applications requiring up to 3A. If your application requires exactly 1A, the substitute remains compatible as it can safely handle lower current levels.

Q: What is the advantage of the substitute's higher mechanical life rating?

A: The substitute is rated for 1,000,000 mechanical cycles versus 100,000 for the original, indicating extended durability and longer service life in high-cycle applications.

Q: Is the substitute actively manufactured?

A: Yes. The YB25SKW01-5F12-AB is classified as Active product status, ensuring ongoing availability from NKK Switches, unlike the obsolete KB25SKW01-5F12-AB.