KB15SKW01-6G-JB Equivalent & Substitute Parts

Part Overview

The KB15SKW01-6G-JB is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with illuminated panel mount design. This component is rated for 1A at 125V AC and 30V DC, with blue LED illumination at 3.6VDC nominal. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this series is no longer available.

Substiute Parts

KB15SKW01-6G-JB
NKK SwitchesIn Stock: 1238KB15SKW01-6G-JB Datasheet
KB15SKW01-6G-JB
Current Part
YB15SKW01-6G-JB
NKK SwitchesIn Stock: 749YB15SKW01-6G-JB Datasheet
YB15SKW01-6G-JB
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Key Parameters

Parameter Value
Manufacturer NKK Switches
Circuit Configuration SPDT
Switch Function On-Momentary
Current Rating 1A (AC/DC)
Voltage Rating - AC 125V
Voltage Rating - DC 30V
Mounting Type Panel Mount, Front
Illumination Type LED, Blue
Illumination Voltage 3.6VDC
Actuator Type Square Button
Termination Style Solder Lug
Panel Cutout Diameter 12.30mm
Operating Temperature Range -25°C to 50°C
Mechanical Life 100,000 Cycles
Electrical Life 50,000 Cycles
RoHS Status ROHS3 Compliant
Product Status Obsolete

Substitute Part Grouping Explanation

The YB15SKW01-6G-JB qualifies as a functional substitute based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

  • SPDT circuit configuration
  • On-Momentary switch function
  • 125V AC voltage rating
  • 30V DC voltage rating
  • Panel mount, front installation
  • Blue LED illumination at 3.6VDC nominal
  • Square button actuator with no marking
  • Clear actuator cap with white filter/diffuser
  • Operating temperature range (-25°C to 50°C)
  • ROHS3 compliance
  • Solder termination capability

Differing Parameters:

  • Current rating increased from 1A to 3A
  • Panel cutout diameter increased from 12.30mm to 16.00mm
  • Mechanical life upgraded from 100,000 to 1,000,000 cycles
  • Electrical life upgraded from 50,000 to 100,000 cycles
  • Termination includes Quick Connect option (0.110" / 2.8mm) in addition to solder
  • Product status is Active (versus Obsolete)
  • Includes tactile feedback feature

The YB15SKW01-6G-JB represents an enhanced variant within the same manufacturer's illuminated pushbutton switch portfolio, offering superior electrical and mechanical durability while maintaining core functional compatibility.

Parameter Comparison

Parameter KB15SKW01-6G-JB (Main) YB15SKW01-6G-JB (Substitute)
Manufacturer NKK Switches NKK Switches
Circuit Configuration SPDT SPDT
Switch Function On-Momentary On-Momentary
Current Rating (AC/DC) 1A 3A
Voltage Rating - AC 125V 125V
Voltage Rating - DC 30V 30V
Mounting Type Panel Mount, Front Panel Mount, Front
Illumination Type, Color LED, Blue LED, Blue
Illumination Voltage (Nominal) 3.6VDC 3.6VDC
Actuator Type Square Button Square Button
Color - Actuator/Cap Clear (White Filter/Diffuser) Clear (White Filter/Diffuser)
Termination Style Solder Lug Solder, Quick Connect - 0.110" (2.8mm)
Panel Cutout Dimensions Circular - 12.30mm Dia Circular - 16.00mm Dia
Operating Temperature -25°C to 50°C -25°C to 50°C
Mechanical Life 100,000 Cycles 1,000,000 Cycles
Electrical Life 50,000 Cycles 100,000 Cycles
RoHS Status ROHS3 Compliant ROHS3 Compliant
Product Status Obsolete Active

Engineering Selection Recommendations

The YB15SKW01-6G-JB is available as an active product from NKK Switches and maintains ROHS3 compliance, providing regulatory continuity with the obsolete KB15SKW01-6G-JB. Both components share identical voltage ratings, circuit topology, and illumination specifications, establishing functional equivalence for standard circuit applications.

Selection of the YB15SKW01-6G-JB requires verification of two mechanical constraints: panel cutout diameter (16.00mm versus 12.30mm) and termination compatibility. The larger panel cutout necessitates modification of existing panel mounting holes. The substitute offers both solder lug and quick connect termination options, providing flexibility for different wiring configurations.

The increased current rating (3A versus 1A) and enhanced mechanical/electrical life cycles position the YB15SKW01-6G-JB as a higher-performance alternative suitable for applications requiring extended operational durability. These enhancements do not introduce incompatibility with circuits designed for the original 1A specification.

Frequently Asked Questions (FAQ)

Q: Can YB15SKW01-6G-JB directly replace KB15SKW01-6G-JB without circuit modifications?

A: Electrical circuit compatibility is confirmed. Both components share identical SPDT configuration, voltage ratings (125V AC / 30V DC), and illumination specifications (3.6VDC blue LED). The higher current rating of the substitute (3A) is backward-compatible with 1A circuit designs. Panel mounting modifications are required due to the larger cutout diameter (16.00mm versus 12.30mm).

Q: What are the termination differences between these parts?

A: The KB15SKW01-6G-JB uses solder lug termination exclusively. The YB15SKW01-6G-JB provides dual termination options: solder lug and quick connect (0.110" / 2.8mm). Selection depends on the wiring harness configuration of the target application.

Q: Are there compliance or certification differences?

A: Both components are ROHS3 compliant and carry identical ECCN (EAR99) and HTSUS classifications. No compliance gaps exist between the main part and substitute.

Q: What mechanical life improvement does the substitute offer?

A: The YB15SKW01-6G-JB provides 1,000,000 mechanical cycles versus 100,000 cycles for the KB15SKW01-6G-JB, representing a 10-fold increase in rated mechanical durability. Electrical life is similarly upgraded from 50,000 to 100,000 cycles.

Q: Is the panel cutout size difference a critical constraint?

A: Yes. The 3.70mm increase in panel cutout diameter (from 12.30mm to 16.00mm) requires physical modification of existing panel mounting holes. This constraint must be evaluated against application-specific panel design flexibility.

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