KB15SKW01-5F-JB Equivalent & Substitute Parts

Part Overview

The KB15SKW01-5F-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 includes green LED illumination at 2.1 VDC nominal. The product 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.

Key Parameters

Parameter	Value
Manufacturer Part Number	KB15SKW01-5F-JB
Manufacturer	NKK Switches
Circuit Configuration	SPDT
Current Rating	1A (AC/DC)
Voltage Rating - AC	125V
Voltage Rating - DC	30V
Mounting Type	Panel Mount, Front
Illumination Type	LED, Green
Illumination Voltage	2.1 VDC
Panel Cutout Diameter	12.30mm
Termination Style	Solder Lug
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

The YB15SKW01-5F-JB qualifies as a functional substitute based on the following alignment of critical parameters:

Matching Parameters:

SPDT circuit configuration
125V AC voltage rating
30V DC voltage rating
Panel mount, front mounting type
Green LED illumination
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
Illumination voltage: 2.1 VDC to 2.2 VDC
Panel cutout diameter: 12.30mm to 16.00mm
Termination includes Quick Connect option (0.110" / 2.8mm) in addition to solder
Mechanical life: 100,000 cycles to 1,000,000 cycles
Electrical life: 50,000 cycles to 100,000 cycles
Product status: Active (versus obsolete)

The YB15SKW01-5F-JB maintains electrical compatibility within the specified voltage and circuit parameters while providing enhanced current capacity and mechanical durability.

Parameter Comparison

Parameter	KB15SKW01-5F-JB (Main)	YB15SKW01-5F-JB (Substitute)
Manufacturer	NKK Switches	NKK Switches
Circuit Configuration	SPDT	SPDT
Switch Function	On-Mom	On-Mom
Current Rating (Amps)	1A (AC/DC)	3A (AC/DC)
Voltage Rating - AC	125V	125V
Voltage Rating - DC	30V	30V
Mounting Type	Panel Mount, Front	Panel Mount, Front
Type	Standard, Illuminated	Standard, Illuminated
Actuator Type	Square, Button	Square, Button
Color - Actuator/Cap	Clear (White Filter/Diffuser)	Clear (White Filter/Diffuser)
Illumination Type, Color	LED, Green	LED, Green
Illumination Voltage (Nominal)	2.1 VDC	2.2 VDC
Panel Cutout Dimensions	Circular - 12.30mm Dia	Circular - 16.00mm Dia
Operating Temperature	-25°C ~ 50°C	-25°C ~ 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 YB15SKW01-5F-JB is available as an active product from NKK Switches and maintains ROHS3 compliance equivalent to the KB15SKW01-5F-JB. Both components satisfy identical voltage and circuit requirements. Selection of the YB15SKW01-5F-JB provides the advantage of current product status with extended mechanical and electrical life ratings.

Physical panel cutout dimensions differ between the two parts (12.30mm versus 16.00mm). Panel modifications are required if substituting the YB15SKW01-5F-JB into existing KB15SKW01-5F-JB installations. The increased current rating (3A versus 1A) and enhanced cycle life of the substitute part support applications requiring higher reliability margins within the same voltage envelope.

Illumination voltage tolerance between 2.1 VDC and 2.2 VDC remains within typical LED operating specifications and does not require circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can YB15SKW01-5F-JB directly replace KB15SKW01-5F-JB in existing assemblies?

A: Electrical substitution is valid. The SPDT circuit, voltage ratings, and illumination specifications are compatible. Physical panel cutout diameter differs (16.00mm versus 12.30mm), requiring panel modification for mechanical installation.

Q: What is the significance of the current rating increase from 1A to 3A?

A: The YB15SKW01-5F-JB accommodates higher load currents while maintaining the same voltage ratings. This provides design flexibility for applications requiring increased current capacity without circuit redesign.

Q: Are there termination compatibility considerations?

A: The KB15SKW01-5F-JB uses solder lug termination exclusively. The YB15SKW01-5F-JB offers both solder and quick connect (0.110" / 2.8mm) termination options. Solder lug termination is available on the substitute part for direct electrical connection compatibility.

Q: How do the mechanical and electrical life ratings affect component selection?

A: The YB15SKW01-5F-JB provides 10-fold higher mechanical life (1,000,000 versus 100,000 cycles) and doubled electrical life (100,000 versus 50,000 cycles). These enhanced ratings support extended service intervals and higher-cycle applications.

Q: Is the illumination voltage difference significant?

A: The 0.1 VDC difference (2.1 to 2.2 VDC) falls within standard LED operating tolerance and does not require circuit modification. Both values support green LED illumination at equivalent brightness levels.

Q: What compliance certifications apply to both parts?

A: Both KB15SKW01-5F-JB and YB15SKW01-5F-JB are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory requirements.

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