KB15SKW01B-5C12-JB Equivalent & Substitute Parts

Part Overview

The KB15SKW01B-5C12-JB is a miniature illuminated pushbutton switch manufactured by NKK Switches, configured as a Standard SPDT (Single Pole Double Throw) panel mount component with LED red illumination. This part is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and component procurement.

The switch is designed for applications requiring low-current switching (1A AC/DC) at 125V AC or 30V DC with integrated 12VDC LED indication. Its compact circular 12.30mm panel cutout and solder lug termination are typical for legacy industrial control and instrumentation panels.

Substiute Parts

KB15SKW01B-5C12-JB

NKK SwitchesIn Stock: 1191KB15SKW01B-5C12-JB Datasheet

Current PartRFQ

YB15SKW01-5C12-JB

NKK SwitchesIn Stock: 953YB15SKW01-5C12-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB15SKW01B-5C12-JB is evaluated based on electrical and mechanical compatibility within the constraints of the allowed parameter set. The primary substitute identified is the YB15SKW01-5C12-JB from NKK Switches.

Substitution is valid when the following core parameters are maintained or exceeded:

• Circuit configuration remains SPDT
• Switch function remains On-Momentary
• Voltage ratings meet or exceed the original (125V AC, 30V DC minimum)
• Illumination type and voltage remain consistent (LED, Red, 12VDC)
• Operating temperature range encompasses the original (-25°C to +50°C)
• RoHS3 compliance is maintained
• Mounting type and panel interface are compatible

The YB15SKW01-5C12-JB qualifies as a substitute because it maintains all critical electrical parameters while offering enhanced mechanical durability and improved current handling capacity. However, mechanical interface differences exist and must be evaluated for specific applications.

Parameter Comparison

Engineering Selection Recommendations

The YB15SKW01-5C12-JB is the identified substitute for the obsolete KB15SKW01B-5C12-JB. Selection of this substitute is supported by the following engineering factors:

Product Status: The KB15SKW01B-5C12-JB is classified as Obsolete, while the YB15SKW01-5C12-JB is Active. Active product status ensures ongoing availability, manufacturing support, and compliance maintenance.

Regulatory Compliance: Both parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) ratings, ensuring compatibility with current environmental and moisture sensitivity requirements.

Electrical Equivalence: The substitute maintains identical voltage ratings (125V AC, 30V DC) and illumination specifications (LED Red, 12VDC). The increased current rating (3A versus 1A) provides additional design margin without introducing incompatibility.

Mechanical Considerations: The substitute features an increased panel cutout diameter (16.00mm versus 12.30mm) and modified termination options (Quick Connect in addition to Solder). These differences require physical panel modification and wiring interface evaluation for specific applications.

Durability Enhancement: The substitute offers significantly improved mechanical life (1,000,000 cycles versus 100,000 cycles) and electrical life (100,000 cycles versus 50,000 cycles), extending component service life in high-cycle applications.

Frequently Asked Questions (FAQ)

Q: Can the YB15SKW01-5C12-JB directly replace the KB15SKW01B-5C12-JB without panel modification?

A: No. The panel cutout diameter differs (16.00mm versus 12.30mm). Panel drilling or enlargement is required. Additionally, termination style options differ; the substitute offers both Solder and Quick Connect options, requiring wiring interface evaluation.

Q: Are the electrical specifications identical between these parts?

A: The voltage ratings and illumination specifications are identical. The current rating differs (3A versus 1A); the substitute has higher capacity. Both maintain SPDT circuit configuration and On-Momentary function.

Q: Why is the substitute rated for higher current?

A: The YB series represents a later design generation with enhanced electrical and mechanical durability. The higher current rating reflects improved internal contact design and material specifications.

Q: Is the substitute compatible with existing 12VDC illumination circuits?

A: Yes. Both parts require identical 12VDC illumination voltage and use LED red indication. Illumination circuit compatibility is maintained.

Q: What is the impact of the larger panel cutout diameter?

A: The 16.00mm cutout (versus 12.30mm) requires panel modification. Existing panel holes cannot accommodate the substitute without enlargement. This is a mechanical interface consideration only and does not affect electrical function.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the KB15SKW01B-5C12-JB and YB15SKW01-5C12-JB maintain ROHS3 compliance and MSL Level 1 ratings.

Q: What is the difference in mechanical life between these parts?

A: The substitute offers 1,000,000 mechanical cycles compared to 100,000 cycles for the original. This represents a 10-fold improvement in durability for high-cycle applications.

Q: Can the Quick Connect termination option be used instead of solder lugs?

A: Yes. The substitute offers both Solder and Quick Connect (0.110" / 2.8mm) termination options. Selection depends on wiring interface requirements and panel design.