KB15SKW01-12-JB Equivalent & Substitute Parts

Part Overview

The KB15SKW01-12-JB is an illuminated pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuitry with a 1A current rating at 125V AC. This panel-mount component is designed for front-facing installation with incandescent white illumination powered at 12 VAC. The product is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

KB15SKW01-12-JB

NKK SwitchesIn Stock: 818KB15SKW01-12-JB Datasheet

Current PartRFQ

YB15SKW01-5F12-JB

NKK SwitchesIn Stock: 925YB15SKW01-5F12-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB15SKW01-12-JB is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Circuit configuration (SPDT)
• Switch function (On-Mom momentary operation)
• Voltage ratings (125V AC / 30V DC minimum)
• Mounting type (Panel Mount, Front)
• Panel cutout dimensions (circular, compatible with 12.30mm specification)
• Termination compatibility with solder lug connections

Allowable Variation Parameters:

• Current rating (may exceed 1A specification)
• Illumination type and color (incandescent to LED conversion acceptable)
• Illumination voltage (12V nominal acceptable in both AC and DC variants)
• Mechanical and electrical life cycles (higher values acceptable)
• Actuator marking and color options

The substitute part YB15SKW01-5F12-JB meets the mandatory compatibility criteria while offering enhanced performance characteristics in current capacity, mechanical durability, and illumination technology.

Parameter Comparison

Engineering Selection Recommendations

The YB15SKW01-5F12-JB qualifies as a direct substitute for the KB15SKW01-12-JB based on electrical and mechanical compatibility. Both components maintain identical SPDT circuit configuration, momentary switch function, and voltage specifications (125V AC / 30V DC). Both are ROHS3 compliant and manufactured by NKK Switches.

The substitute part offers significant advantages: active product status ensures ongoing availability and supply chain continuity, whereas the main part is obsolete. The YB15SKW01-5F12-JB provides enhanced current capacity (3A versus 1A), extended mechanical life (1,000,000 versus 100,000 cycles), and doubled electrical life (100,000 versus 50,000 cycles).

Physical integration requires consideration of panel cutout diameter differences: the substitute requires a 16.00mm circular cutout compared to the 12.30mm specification of the original part. Termination options differ, with the substitute offering both solder and quick-connect 0.110" (2.8mm) terminals. Illumination technology transitions from incandescent white to LED green, with voltage conversion from 12 VAC to 12 VDC.

Frequently Asked Questions (FAQ)

Q: Can the YB15SKW01-5F12-JB directly replace the KB15SKW01-12-JB without circuit modifications?

A: Electrical substitution is valid for applications where the 1A current rating of the original part is not exceeded. The substitute's 3A rating provides additional capacity margin. However, panel cutout diameter modification is required (12.30mm to 16.00mm), and illumination voltage conversion from 12 VAC to 12 VDC must be accommodated in the control circuit.

Q: What are the implications of the illumination technology change from incandescent to LED?

A: LED illumination (green) replaces incandescent white illumination. This requires 12 VDC supply instead of 12 VAC. LED operation provides extended service life, reduced power consumption, and different color indication. Control circuit power supply must be verified for DC compatibility.

Q: Are there mechanical compatibility concerns with the larger panel cutout diameter?

A: The substitute part requires a 16.00mm circular panel cutout versus the original 12.30mm specification. Existing panel installations designed for the KB15SKW01-12-JB will require mechanical modification to accommodate the larger diameter. New installations can be designed directly for the 16.00mm specification.

Q: How do the termination style differences affect installation?

A: The KB15SKW01-12-JB uses solder lug termination exclusively. The YB15SKW01-5F12-JB provides both solder and quick-connect 0.110" (2.8mm) terminal options. Existing solder-based connections are compatible with the solder termination option of the substitute part.

Q: What is the significance of the product status difference?

A: The KB15SKW01-12-JB is classified as obsolete, indicating discontinued manufacturing and limited availability. The YB15SKW01-5F12-JB maintains active status, ensuring reliable supply chain access and ongoing manufacturer support for new designs and maintenance applications.

Q: Are both parts equally suitable for all application environments?

A: Both components operate within the identical temperature range (-25°C to 50°C) and maintain ROHS3 compliance. The substitute part's extended mechanical life (1,000,000 cycles) and electrical life (100,000 cycles) provide enhanced reliability for high-cycle-count applications compared to the original part's specifications (100,000 and 50,000 cycles respectively).