KB15CKW01-12-FF Equivalent & Substitute Parts

Part Overview

The KB15CKW01-12-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-mounted front applications with incandescent green illumination at 12 VAC. The product is currently obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and new design implementations where equivalent functionality is required.

Substiute Parts

KB15CKW01-12-FF

NKK SwitchesIn Stock: 756KB15CKW01-12-FF Datasheet

Current PartRFQ

YB15CKW01-5F12-JF

NKK SwitchesIn Stock: 985YB15CKW01-5F12-JF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB15CKW01-12-FF is determined by the following critical parameters:

Mandatory Compatibility Parameters:

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

Allowable Variation Parameters:

• Current rating: May exceed 1A (higher ratings are backward compatible)
• Illumination type: Incandescent or LED (both provide visual indication)
• Illumination voltage: 12V nominal (VAC or VDC acceptable)
• Panel cutout diameter: Larger diameters require panel modification
• Mechanical/Electrical life: Higher cycle ratings are acceptable
• Termination style: Solder Lug or Quick Connect acceptable

The YB15CKW01-5F12-JF meets all mandatory compatibility parameters while offering enhanced performance characteristics in current rating, mechanical life, and electrical life.

Parameter Comparison

Engineering Selection Recommendations

The YB15CKW01-5F12-JF is a suitable substitute for the obsolete KB15CKW01-12-FF based on the following engineering criteria:

Product Status Alignment: The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity compared to the obsolete original component.

Compliance Certification: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent component selection.

Functional Equivalence: The substitute maintains identical circuit configuration (SPDT), switch function (On-Mom), voltage ratings (125V AC / 30V DC), and operating temperature range (-25°C to 50°C), ensuring direct functional compatibility in existing applications.

Performance Enhancement: The substitute provides superior electrical and mechanical characteristics with 3A current rating (versus 1A), 1,000,000 mechanical cycles (versus 100,000), and 100,000 electrical cycles (versus 50,000), delivering extended component life in the same form factor.

Implementation Considerations: Panel cutout diameter increases from 12.30mm to 16.00mm, requiring panel modification for installation. Illumination transitions from incandescent to LED technology with VDC supply (versus VAC), necessitating circuit-level evaluation for power supply compatibility. Termination options expand to include Quick Connect capability alongside solder connection.

Frequently Asked Questions (FAQ)

Q: Can the YB15CKW01-5F12-JF directly replace the KB15CKW01-12-FF without circuit modifications?

A: The substitute maintains identical electrical ratings and circuit configuration. However, illumination voltage changes from 12 VAC to 12 VDC, and panel cutout diameter increases from 12.30mm to 16.00mm. Circuit-level power supply evaluation and panel modification are required.

Q: What is the primary reason for substitution?

A: The KB15CKW01-12-FF is obsolete. The YB15CKW01-5F12-JF is an active product from the same manufacturer with equivalent functionality and enhanced performance characteristics.

Q: Are there differences in illumination performance between incandescent and LED?

A: Both provide green visual indication. LED illumination (YB15CKW01-5F12-JF) operates on 12 VDC with extended operational life. Incandescent illumination (KB15CKW01-12-FF) operates on 12 VAC. Power supply compatibility must be evaluated for each application.

Q: What panel modifications are necessary for the substitute part?

A: The substitute requires a larger panel cutout diameter of 16.00mm compared to the original 12.30mm. Mechanical panel drilling or modification is necessary for proper installation.

Q: Are the electrical ratings compatible with the original application?

A: Yes. The substitute maintains 125V AC and 30V DC ratings. The increased current rating (3A versus 1A) is backward compatible with applications designed for 1A operation.

Q: What termination options are available for the substitute?

A: The YB15CKW01-5F12-JF offers both Solder and Quick Connect - 0.110" (2.8mm) termination styles, providing installation flexibility compared to the original Solder Lug termination.