KB25SKW01-01-JB Equivalent & Substitute Parts

Part Overview

The KB25SKW01-01-JB is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuit configuration with illuminated panel mount design. This component is rated for 1A at 125V AC and includes neon white illumination. The product is currently obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

KB25SKW01-01-JB

NKK SwitchesIn Stock: 920KB25SKW01-01-JB Datasheet

Current PartRFQ

YB25SKW01-5F-JB

NKK SwitchesIn Stock: 995YB25SKW01-5F-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The YB25SKW01-5F-JB qualifies as a substitute based on the following alignment of critical parameters:

Maintained Compatibility Parameters:

• Circuit configuration: DPDT (identical)
• Switch function: On-Mom (identical)
• Voltage rating - AC: 125V (identical)
• Voltage rating - DC: 30V (identical)
• Mounting type: Panel Mount, Front (identical)
• Actuator type: Square, Button (identical)
• Operating temperature range: -25°C to 50°C (identical)
• RoHS compliance: ROHS3 Compliant (identical)

Enhanced Performance Parameters:

• Current rating increased from 1A to 3A, providing higher capacity within the same voltage envelope
• Mechanical life upgraded from 100,000 to 1,000,000 cycles
• Electrical life upgraded from 50,000 to 100,000 cycles

Modified Parameters Requiring Design Consideration:

• Panel cutout diameter: 16.00mm (increased from 12.30mm)
• Illumination type: LED, Green (changed from Neon, White)
• Illumination voltage: 2.2 VDC (changed from 110 VAC)
• Termination style: Solder, Quick Connect - 0.110" (changed from Solder Lug)
• Product status: Active (upgraded from Obsolete)

Parameter Comparison

Engineering Selection Recommendations

The YB25SKW01-5F-JB is available as an active product from NKK Switches and maintains full compliance with ROHS3 and REACH requirements. The substitute part preserves all critical electrical parameters including circuit topology, voltage ratings, and switching function. The increased current capacity (3A versus 1A) and extended mechanical/electrical life cycles provide enhanced reliability margins for new applications.

Design integration requires accommodation of the larger panel cutout diameter (16.00mm versus 12.30mm). The transition from neon illumination to LED illumination with reduced voltage requirement (2.2 VDC versus 110 VAC) necessitates modification of the illumination circuit. The termination style change from solder lug to solder with quick connect requires corresponding PCB or harness modifications.

Frequently Asked Questions (FAQ)

Q: Can the YB25SKW01-5F-JB directly replace the KB25SKW01-01-JB without any modifications?

A: Direct mechanical and electrical replacement is not possible without design modifications. The panel cutout diameter differs (16.00mm versus 12.30mm), requiring panel modification. The illumination circuit must be redesigned to accommodate LED operation at 2.2 VDC instead of neon at 110 VAC. Termination connections differ and must be adapted.

Q: What are the primary compatibility factors between these two parts?

A: Both parts share identical DPDT circuit configuration, On-Mom switching function, 125V AC and 30V DC voltage ratings, panel mount front orientation, square button actuator type, and operating temperature range. These parameters establish functional equivalence for the switching mechanism itself.

Q: Does the increased current rating of the YB25SKW01-5F-JB affect compatibility?

A: The 3A rating of the substitute part exceeds the 1A requirement of the original part. This represents an enhancement that does not compromise compatibility. Applications originally designed for 1A operation remain fully supported by the higher-rated substitute.

Q: What design considerations are necessary for the panel cutout diameter change?

A: The panel cutout must be enlarged from 12.30mm to 16.00mm diameter. This modification is required for mechanical fit and proper panel mounting of the substitute component.

Q: How does the illumination change from neon to LED affect system design?

A: The illumination circuit requires complete redesign. The original neon illumination operates at 110 VAC, while the substitute LED illumination operates at 2.2 VDC. A new low-voltage LED drive circuit must be implemented, typically incorporating current-limiting resistors or dedicated LED driver circuitry.

Q: Are there packaging differences between these parts?

A: The original part is supplied in standard packaging, while the substitute is supplied in tray packaging. This affects inventory handling and component placement procedures but does not impact functional performance.