KB15RKW01-28-EB Equivalent & Substitute Parts

Part Overview

The KB15RKW01-28-EB is an illuminated pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with 1A current rating at 125V AC. This component is designed for panel-mount front installation with incandescent yellow illumination at 28 VAC nominal voltage. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where similar performance characteristics are required.

Substiute Parts

KB15RKW01-28-EB

NKK SwitchesIn Stock: 1141KB15RKW01-28-EB Datasheet

Current PartRFQ

YB15RKW01-5D24-JD

NKK SwitchesIn Stock: 773YB15RKW01-5D24-JD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB15RKW01-28-EB is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Circuit configuration (SPDT maintained)
• Mounting type (Panel Mount, Front)
• Switch function (On-Mom)
• Actuator type (Rectangular, Button)
• Operating temperature range (-25°C to 50°C)
• RoHS3 compliance status

Allowable Variation Parameters:

• Current rating (substitute may exceed 1A requirement)
• Illumination technology (incandescent to LED conversion acceptable)
• Illumination voltage (28 VAC to 24 VDC conversion acceptable)
• Mechanical and electrical life cycles (substitute may exceed minimum requirements)
• Panel cutout diameter (design accommodation required)
• Termination style (solder lug to solder/quick connect conversion acceptable)

The YB15RKW01-5D24-JD qualifies as a functional substitute based on maintained SPDT circuit, panel-mount front configuration, identical operating temperature range, and ROHS3 compliance. Enhanced current rating (3A), improved mechanical life (1,000,000 cycles), and LED illumination represent performance improvements over the obsolete KB15RKW01-28-EB.

Parameter Comparison

Engineering Selection Recommendations

The YB15RKW01-5D24-JD is an active-status substitute for the obsolete KB15RKW01-28-EB. Both components maintain ROHS3 compliance and identical voltage/circuit specifications. The substitute provides enhanced reliability through increased mechanical life (1,000,000 vs. 100,000 cycles) and electrical life (100,000 vs. 50,000 cycles), with higher current capacity (3A vs. 1A).

Design integration requires accommodation for the larger panel cutout diameter (16.00mm vs. 12.30mm) and illumination voltage conversion from 28 VAC to 24 VDC. Termination modification from solder lug to solder/quick connect is necessary. LED illumination (amber) replaces incandescent yellow illumination, affecting visual appearance and power consumption characteristics.

Frequently Asked Questions (FAQ)

Q: Can the YB15RKW01-5D24-JD directly replace the KB15RKW01-28-EB without modifications?

A: Direct mechanical and electrical substitution requires three design modifications: panel cutout enlargement from 12.30mm to 16.00mm diameter, illumination voltage supply change from 28 VAC to 24 VDC, and termination connection adaptation from solder lug to solder/quick connect configuration.

Q: Are the voltage ratings compatible between these two switches?

A: Both switches maintain identical AC voltage rating (125V) and DC voltage rating (30V) for switch operation. The difference exists only in illumination voltage supply: the main part requires 28 VAC while the substitute requires 24 VDC.

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

A: The substitute requires a 16.00mm diameter panel cutout compared to 12.30mm for the original part. Existing panel designs with 12.30mm cutouts require mechanical modification or panel replacement to accommodate the larger diameter.

Q: Does the LED illumination change affect system functionality?

A: LED illumination (amber) replaces incandescent yellow illumination. Both provide visual indication; however, LED technology offers reduced power consumption and extended operational life. Color perception shifts from yellow to amber.

Q: Are both components RoHS compliant?

A: Both the KB15RKW01-28-EB and YB15RKW01-5D24-JD are ROHS3 compliant, meeting environmental and hazardous substance restrictions.

Q: What are the mechanical life differences between these switches?

A: The KB15RKW01-28-EB provides 100,000 mechanical cycles, while the YB15RKW01-5D24-JD provides 1,000,000 mechanical cycles, representing a tenfold improvement in durability.