KB25NKW01-6B-JB Equivalent & Substitute Parts

Part Overview

The KB25NKW01-6B-JB is a pushbutton switch manufactured by NKK Switches, configured as a DPDT (Double Pole Double Throw) illuminated panel mount component with snap-in installation. This part operates at 1A (AC/DC) with 125V AC and 30V DC voltage ratings, featuring white LED illumination at 3.3VDC nominal. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations.

Substiute Parts

KB25NKW01-6B-JB

NKK SwitchesIn Stock: 1196KB25NKW01-6B-JB Datasheet

Current PartRFQ

YB25NKW01-6B-JB

NKK SwitchesIn Stock: 917YB25NKW01-6B-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The YB25NKW01-6B-JB qualifies as a functional substitute based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Circuit configuration: DPDT
• Switch function: On-Mom
• Voltage rating (AC): 125V
• Voltage rating (DC): 30V
• Mounting type: Panel Mount, Snap-In
• Illumination type: LED, White
• Illumination voltage: 3.3VDC
• Operating temperature range: -25°C to 50°C
• RoHS compliance: ROHS3 Compliant

Allowable Differences:

• Current rating: YB25NKW01-6B-JB rated at 3A (AC/DC) exceeds the 1A requirement of KB25NKW01-6B-JB, providing enhanced capacity
• Mechanical life: YB25NKW01-6B-JB rated at 1,000,000 cycles versus 100,000 cycles
• Electrical life: YB25NKW01-6B-JB rated at 100,000 cycles versus 50,000 cycles
• Panel cutout diameter: YB25NKW01-6B-JB requires 16.00mm versus 12.30mm
• Termination style: YB25NKW01-6B-JB offers Solder and Quick Connect options versus Solder Lug only
• Product status: YB25NKW01-6B-JB is Active

Parameter Comparison

Engineering Selection Recommendations

The YB25NKW01-6B-JB is a direct functional substitute for the obsolete KB25NKW01-6B-JB. Both components maintain identical electrical specifications for circuit configuration, voltage ratings, and illumination characteristics. The YB25NKW01-6B-JB offers superior reliability metrics with extended mechanical and electrical life ratings, and maintains full ROHS3 compliance.

Panel cutout diameter modification from 12.30mm to 16.00mm is required for physical installation. Termination options expand with the substitute part, offering both solder and quick connect configurations. The higher current rating (3A versus 1A) provides additional operational margin without affecting circuit compatibility.

The active product status of YB25NKW01-6B-JB ensures ongoing availability and manufacturer support, addressing the obsolescence constraint of the original part.

Frequently Asked Questions (FAQ)

Q: Can YB25NKW01-6B-JB directly replace KB25NKW01-6B-JB without circuit modifications?

A: Electrical circuit compatibility is maintained. The higher current rating of YB25NKW01-6B-JB (3A) is backward compatible with applications designed for 1A operation. Panel cutout diameter must be modified from 12.30mm to 16.00mm for mechanical installation.

Q: What is the impact of the larger panel cutout diameter?

A: The YB25NKW01-6B-JB requires a 16.00mm circular cutout versus 12.30mm for the original part. Panel modification or replacement is necessary for physical mounting.

Q: Are the illumination specifications identical?

A: Yes. Both parts feature white LED illumination at 3.3VDC nominal voltage, ensuring identical visual and electrical behavior in illumination circuits.

Q: Does the higher current rating affect system design?

A: No. The 3A rating of YB25NKW01-6B-JB exceeds the 1A requirement, providing additional capacity margin. Existing circuit designs operate within the substitute part's specifications.

Q: What are the termination differences?

A: KB25NKW01-6B-JB uses Solder Lug termination exclusively. YB25NKW01-6B-JB offers both Solder and Quick Connect (0.110" / 2.8mm) options, providing installation flexibility.

Q: Is RoHS compliance maintained?

A: Yes. Both parts are ROHS3 compliant, maintaining regulatory compliance for environmental and hazardous substance restrictions.