KB15SKW01-6B-JB Equivalent & Substitute Parts

Part Overview

The KB15SKW01-6B-JB is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with integrated LED illumination. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The switch is rated for 1A at 125V AC and 30V DC, with a panel-mount front installation configuration and white LED illumination at 3.3VDC nominal voltage.

Key Parameters

Parameter	KB15SKW01-6B-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, White
Illumination Voltage	3.3VDC
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

Substitution eligibility for the KB15SKW01-6B-JB is determined by the following critical parameters:

Circuit configuration must remain SPDT to maintain electrical functionality. Voltage ratings (125V AC, 30V DC) establish the maximum operational envelope and cannot be reduced. Mounting type (panel mount, front) and panel cutout diameter (12.30mm) define mechanical compatibility with existing enclosures. Illumination specifications (LED, white, 3.3VDC) must match to preserve indicator functionality.

The YB15SKW01-6B-JB qualifies as a substitute based on matching these core parameters. However, this substitute introduces differences in current rating (3A versus 1A), mechanical life (1,000,000 versus 100,000 cycles), electrical life (100,000 versus 50,000 cycles), panel cutout diameter (16.00mm versus 12.30mm), and termination style (solder and quick connect versus solder lug only). These differences must be evaluated against specific application requirements.

Parameter Comparison

Parameter	KB15SKW01-6B-JB	YB15SKW01-6B-JB
Manufacturer	NKK Switches	NKK Switches
Series	KB	YB
Product Status	Obsolete	Active
Circuit Configuration	SPDT	SPDT
Switch Function	On-Mom	On-Mom
Current Rating	1A (AC/DC)	3A (AC/DC)
Voltage Rating - AC	125V	125V
Voltage Rating - DC	30V	30V
Mounting Type	Panel Mount, Front	Panel Mount, Front
Actuator Type	Square, Button	Square, Button
Illumination Type	LED, White	LED, White
Illumination Voltage	3.3VDC	3.3VDC
Operating Temperature Range	-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
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The KB15SKW01-6B-JB is obsolete; therefore, the YB15SKW01-6B-JB is the designated substitute from NKK Switches. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent substitution.

The YB15SKW01-6B-JB is active in production and provides enhanced reliability characteristics: 10-fold increase in mechanical life (1,000,000 cycles) and doubled electrical life (100,000 cycles) compared to the original part. Current rating is increased to 3A, which is backward compatible with 1A applications. Both components share identical voltage ratings, illumination specifications, and operating temperature range.

Mechanical integration requires consideration: the YB15SKW01-6B-JB has a 16.00mm panel cutout diameter versus the KB15SKW01-6B-JB's 12.30mm diameter. Panel modifications may be necessary for direct substitution. Termination style differs; the substitute offers both solder and quick connect options versus solder lug only on the original.

Frequently Asked Questions (FAQ)

Q: Can the YB15SKW01-6B-JB directly replace the KB15SKW01-6B-JB without modification?

A: Electrical substitution is valid. Mechanical integration requires panel cutout diameter verification. The YB series requires a 16.00mm diameter opening versus 12.30mm for the KB series. Panel modification or adapter mounting may be necessary.

Q: Are the voltage and illumination specifications identical between these parts?

A: Yes. Both components operate at 125V AC and 30V DC with white LED illumination at 3.3VDC nominal voltage. Operating temperature range is identical at -25°C to 50°C.

Q: What is the significance of the higher current rating on the YB15SKW01-6B-JB?

A: The YB series is rated for 3A versus 1A on the KB series. This higher rating is backward compatible with 1A applications and provides additional design margin for current-limited circuits.

Q: How do the mechanical and electrical life ratings compare?

A: The YB15SKW01-6B-JB provides significantly extended life: 1,000,000 mechanical cycles versus 100,000 on the KB series, and 100,000 electrical cycles versus 50,000. This represents a 10-fold improvement in mechanical durability and a 2-fold improvement in electrical durability.

Q: Are there termination style differences that affect installation?

A: Yes. The KB15SKW01-6B-JB uses solder lug termination only. The YB15SKW01-6B-JB offers both solder and quick connect (0.110" / 2.8mm) options, providing greater installation flexibility.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both components are ROHS3 compliant and REACH unaffected, with identical ECCN (EAR99) classification.

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