KB25CKW01-5C-JB Equivalent & Substitute Parts

Part Overview

The KB25CKW01-5C-JB is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with illuminated panel mount design. This component operates at 1A (AC/DC) with 125V AC and 30V DC voltage ratings, incorporating red LED illumination at 1.9VDC nominal. The part is classified as obsolete, necessitating identification of active equivalent models to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

KB25CKW01-5C-JB

NKK SwitchesIn Stock: 771KB25CKW01-5C-JB Datasheet

Current PartRFQ

YB25CKW01-5C-JB

NKK SwitchesIn Stock: 844YB25CKW01-5C-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB25CKW01-5C-JB is determined by the following critical parameters:

• Circuit Configuration: DPDT topology must be maintained
• Switch Function: On-Mom operation required
• Voltage Ratings: Minimum 125V AC and 30V DC support
• Mounting Interface: Panel mount, front configuration with compatible panel cutout dimensions
• Illumination Specification: Red LED at 1.9VDC nominal
• Operating Temperature: -25°C to 50°C range
• Regulatory Compliance: ROHS3 and REACH status

The YB25CKW01-5C-JB qualifies as a substitute part. While it features enhanced current rating (3A versus 1A), superior mechanical life (1,000,000 versus 100,000 cycles), and improved electrical life (100,000 versus 50,000 cycles), it maintains all critical functional parameters. The increased panel cutout dimension (16.00mm versus 12.30mm) and dual termination options (Solder and Quick Connect) represent design enhancements rather than incompatibilities.

Parameter Comparison

Engineering Selection Recommendations

The YB25CKW01-5C-JB is an active product with current manufacturing status, providing supply chain continuity for the obsolete KB25CKW01-5C-JB. Both components maintain ROHS3 compliance and identical ECCN/HTSUS classifications, ensuring regulatory alignment.

Selection of the YB25CKW01-5C-JB introduces the following considerations:

• Panel Integration: The larger panel cutout dimension (16.00mm versus 12.30mm) requires mechanical redesign of panel mounting interfaces
• Termination Compatibility: The substitute offers dual termination options (Solder Lug and Quick Connect 0.110"). Existing solder lug connections remain compatible; Quick Connect termination is optional
• Performance Enhancement: The 3A current rating and extended mechanical/electrical life provide operational margin beyond the original 1A specification
• Voltage Compatibility: Identical AC/DC voltage ratings ensure direct electrical substitution within the specified operating range

Frequently Asked Questions (FAQ)

Q: Can the YB25CKW01-5C-JB directly replace the KB25CKW01-5C-JB without circuit modification?

A: Electrical substitution is direct. The YB series maintains identical voltage ratings (125V AC, 30V DC), DPDT circuit configuration, On-Mom function, and 1.9VDC LED illumination. No circuit redesign is required. Panel cutout dimension differences require mechanical accommodation.

Q: What is the impact of the increased current rating (3A versus 1A)?

A: The higher current rating of the YB25CKW01-5C-JB provides operational margin and does not create incompatibility. Applications designed for 1A operation remain fully compatible. The substitute is suitable for applications requiring up to 3A switching capacity.

Q: Are the termination styles interchangeable?

A: The YB25CKW01-5C-JB provides both Solder Lug and Quick Connect 0.110" (2.8mm) termination options. Existing designs using Solder Lug connections remain compatible. Quick Connect termination is available as an alternative for new designs.

Q: Does the larger panel cutout dimension create compatibility issues?

A: The YB25CKW01-5C-JB requires a 16.00mm diameter circular panel cutout versus 12.30mm for the KB series. Panel redesign is necessary for mechanical fit. Electrical and functional compatibility remains unchanged.

Q: Are both parts compliant with current regulatory requirements?

A: Both the KB25CKW01-5C-JB and YB25CKW01-5C-JB are ROHS3 compliant with identical ECCN (EAR99) and HTSUS (8536.50.9031) classifications. Regulatory alignment is maintained for substitution.