KB15CKW01-28-FF Equivalent & Substitute Parts

Part Overview

The KB15CKW01-28-FF 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 green illumination at 28 VAC. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and redesign applications where continued functionality is required.

Substiute Parts

KB15CKW01-28-FF

NKK SwitchesIn Stock: 1071KB15CKW01-28-FF Datasheet

Current PartRFQ

YB15CKW01-5F24-JF

NKK SwitchesIn Stock: 755YB15CKW01-5F24-JF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB15CKW01-28-FF is determined by the following critical parameters that must remain compatible:

Mandatory Compatibility Parameters:

• Circuit configuration: SPDT (maintained)
• Switch function: On-Mom (maintained)
• Mounting type: Panel Mount, Front (maintained)
• Actuator type: Round, Button (maintained)
• Voltage rating: 125V AC minimum (maintained or exceeded)
• Operating temperature range: -25°C ~ 50°C (maintained or exceeded)
• RoHS compliance: ROHS3 Compliant (maintained)

Allowable Variation Parameters:

• Current rating: May be increased from 1A to higher ratings (3A acceptable)
• Illumination type: May transition from incandescent to LED technology
• Illumination voltage: May differ (24 VDC acceptable as alternative supply)
• Termination style: May vary (Solder Lug to Solder/Quick Connect acceptable)
• Panel cutout diameter: May increase from 12.30mm to 16.00mm (requires panel modification)
• Mechanical/Electrical life: May be increased
• Product status: Active status preferred over obsolete

The substitute part YB15CKW01-5F24-JF meets all mandatory compatibility requirements while offering enhanced electrical characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The YB15CKW01-5F24-JF is a direct functional substitute for the obsolete KB15CKW01-28-FF. Both components maintain identical circuit configuration, switch function, voltage ratings, and operating temperature specifications. The substitute part offers enhanced reliability through increased current capacity (3A vs. 1A), extended mechanical life (1,000,000 vs. 100,000 cycles), and doubled electrical life (100,000 vs. 50,000 cycles).

The transition from incandescent to LED illumination in the substitute part provides improved energy efficiency and extended operational life. The change in illumination voltage from 28 VAC to 24 VDC requires corresponding modifications to the illumination supply circuit but does not affect switch functionality.

The panel cutout diameter increase from 12.30mm to 16.00mm necessitates panel modification during installation. The termination style change from Solder Lug to Solder/Quick Connect requires corresponding modifications to the circuit board or wiring harness.

Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory and environmental compatibility. The substitute part's active product status ensures continued availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can YB15CKW01-5F24-JF directly replace KB15CKW01-28-FF without any modifications?

A: The YB15CKW01-5F24-JF maintains functional compatibility for switch operation (SPDT, On-Mom, 125V AC, 30V DC). However, three modifications are required: (1) panel cutout diameter must be enlarged from 12.30mm to 16.00mm, (2) illumination supply voltage must be changed from 28 VAC to 24 VDC, and (3) termination connections must be adapted from Solder Lug to Solder/Quick Connect configuration.

Q: What are the key compatibility parameters for substituting KB15CKW01-28-FF?

A: The substitute must maintain SPDT circuit configuration, On-Mom switch function, 125V AC voltage rating, Panel Mount Front installation, Round Button actuator type, and -25°C to 50°C operating temperature range. Current rating may be increased, and illumination technology may be upgraded from incandescent to LED.

Q: Why is the current rating increased from 1A to 3A in the substitute part?

A: The increased current rating in YB15CKW01-5F24-JF provides enhanced design margin and reliability. This parameter is allowable for substitution as it does not reduce the component's capability to handle the original 1A requirement. The higher rating ensures the substitute part can support applications with increased current demands.

Q: What is the impact of changing from incandescent to LED illumination?

A: LED illumination provides extended operational life, reduced power consumption, and improved reliability compared to incandescent technology. The functional result—green illumination status indication—remains identical. The change requires modification of the illumination supply voltage from 28 VAC to 24 VDC.

Q: Are there any compliance or regulatory differences between the two parts?

A: Both KB15CKW01-28-FF and YB15CKW01-5F24-JF maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and identical ECCN and HTSUS classifications. No regulatory or compliance barriers exist for substitution.

Q: What is the significance of the product status change from Obsolete to Active?

A: The substitute part's Active status ensures continued manufacturer availability, technical support, and supply chain reliability. The original KB15CKW01-28-FF's Obsolete status indicates discontinued production and potential future unavailability, making the Active substitute part essential for long-term system support.