KB26CKW01-5F12-JB Equivalent & Substitute Parts

Part Overview

The KB26CKW01-5F12-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 a green LED illumination system at 12VDC nominal. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations.

Substiute Parts

KB26CKW01-5F12-JB

NKK SwitchesIn Stock: 717KB26CKW01-5F12-JB Datasheet

Current PartRFQ

YB26CKW01-5F12-JB

NKK SwitchesIn Stock: 1015YB26CKW01-5F12-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB26CKW01-5F12-JB is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration (DPDT)
• Switch function (On-On)
• Mounting type (Panel Mount, Front)
• Voltage ratings (125V AC minimum, 30V DC minimum)
• Illumination type (LED, Green)
• Operating temperature range (-25°C to 50°C minimum)
• Termination compatibility with solder lug applications

Allowable Variation Parameters:

• Current rating: Substitute must meet or exceed 1A (AC/DC)
• Illumination voltage: Substitute may differ if system design accommodates
• Panel cutout diameter: Substitute may differ if mechanical integration is feasible
• Mechanical and electrical life: Substitute may exceed specified cycles
• Product status: Active status preferred for long-term availability

The YB26CKW01-5F12-JB qualifies as a substitute based on matching core electrical and functional parameters while offering enhanced performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The YB26CKW01-5F12-JB serves as the primary substitute for the obsolete KB26CKW01-5F12-JB. Selection is justified on the following basis:

Electrical Compatibility: Both parts maintain identical DPDT circuit configuration, On-On switch function, and voltage ratings (125V AC / 30V DC). The YB26CKW01-5F12-JB provides 3A current capacity, exceeding the original 1A specification, ensuring compatibility with existing circuit designs.

Functional Equivalence: Illumination characteristics remain consistent with green LED operation. The illumination voltage differs (2VDC vs. 12VDC), requiring verification of power supply availability in the target application.

Mechanical Integration: Panel mount front configuration matches the original design. Panel cutout diameter increases from 12.30mm to 16.00mm, necessitating mechanical evaluation for panel compatibility.

Reliability Enhancement: The substitute offers extended mechanical life (200,000 cycles vs. 100,000 cycles) and electrical life (100,000 cycles vs. 50,000 cycles), providing improved longevity.

Availability: Active product status ensures continued supply and support, addressing the obsolescence constraint of the original part.

Compliance: Both parts maintain ROHS3 compliance and EAR99 ECCN classification, preserving regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the YB26CKW01-5F12-JB directly replace the KB26CKW01-5F12-JB without modifications?

A: Electrical and functional compatibility is confirmed. Two design considerations require evaluation: (1) Illumination voltage differs (2VDC vs. 12VDC)—verify power supply capability; (2) Panel cutout diameter increases from 12.30mm to 16.00mm—confirm mechanical fit within the panel assembly.

Q: What is the primary difference in current rating between these parts?

A: The substitute YB26CKW01-5F12-JB is rated for 3A (AC/DC) compared to the original 1A (AC/DC). This higher rating provides design margin and is backward compatible with circuits designed for 1A operation.

Q: Are both parts RoHS compliant?

A: The KB26CKW01-5F12-JB is explicitly ROHS3 compliant. RoHS status for the YB26CKW01-5F12-JB is not specified in available documentation.

Q: What is the significance of the different panel cutout diameters?

A: The KB26CKW01-5F12-JB requires a 12.30mm circular cutout, while the YB26CKW01-5F12-JB requires 16.00mm. Mechanical integration must accommodate this larger diameter. Panel modification may be necessary.

Q: How do the mechanical and electrical life ratings compare?

A: The substitute offers superior durability: mechanical life increases from 100,000 to 200,000 cycles, and electrical life increases from 50,000 to 100,000 cycles. Both parts maintain identical operating temperature range (-25°C to 50°C).

Q: What termination options are available?

A: The original part uses solder lug termination. The substitute offers solder and quick connect (0.110" / 2.8mm) termination options, providing flexibility for different assembly methods.