KB16MKW01-28-JC Equivalent & Substitute Parts

Part Overview

The KB16MKW01-28-JC is an illuminated pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuitry with On-On switching function. This component is rated for 1A at 125V AC and 30V DC, with incandescent red illumination at 28VAC nominal voltage. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

KB16MKW01-28-JC

NKK SwitchesIn Stock: 931KB16MKW01-28-JC Datasheet

Current PartRFQ

YB16MKW01-5C24-JC

NKK SwitchesIn Stock: 1149YB16MKW01-5C24-JC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB16MKW01-28-JC is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Circuit configuration (SPDT required)
• Switch function (On-On required)
• Voltage ratings (125V AC minimum, 30V DC minimum)
• Mounting type (Panel Mount, Snap-In required)
• Actuator type (Round, Button required)
• Operating temperature range (-25°C to 50°C minimum)

Allowable Variations:

• Current rating may exceed 1A (higher current capability is acceptable)
• Illumination type may differ (LED acceptable as alternative to incandescent)
• Illumination voltage may differ (24VDC acceptable as alternative to 28VAC)
• Panel cutout diameter may increase (16.00mm acceptable for 12.30mm requirement)
• Mechanical and electrical life may exceed specified values
• Termination style may vary (Quick Connect acceptable as alternative to Solder Lug)

The YB16MKW01-5C24-JC meets all mandatory compatibility parameters while exceeding performance specifications in current rating, mechanical life, and electrical life.

Parameter Comparison

Engineering Selection Recommendations

The YB16MKW01-5C24-JC is a direct functional substitute for the KB16MKW01-28-JC. Both components maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for equivalent applications.

Key Considerations:

The substitute part provides enhanced performance specifications: 3A current rating versus 1A, 200,000 mechanical cycles versus 100,000, and 100,000 electrical cycles versus 50,000. These improvements ensure extended operational life and greater current-handling capacity.

The illumination system differs from incandescent (28VAC) to LED (24VDC). This transition requires verification that the control circuit can supply 24VDC instead of 28VAC. LED illumination provides improved reliability and reduced power consumption compared to incandescent technology.

Panel cutout diameter increases from 12.30mm to 16.00mm. Mechanical panel modifications are required if the original mounting hole cannot accommodate the larger diameter. Alternatively, a panel adapter or bezel may be necessary.

Termination options expand from Solder Lug only to include Quick Connect - 0.110" (2.8mm) in addition to solder connections, providing flexibility in circuit integration methods.

The substitute part is currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete original component.

Frequently Asked Questions (FAQ)

Q: Can the YB16MKW01-5C24-JC directly replace the KB16MKW01-28-JC without any modifications?

A: The YB16MKW01-5C24-JC is functionally equivalent in circuit configuration, voltage ratings, and mounting type. However, three modifications are required: (1) the control circuit must supply 24VDC instead of 28VAC for illumination, (2) the panel cutout must accommodate a 16.00mm diameter instead of 12.30mm, and (3) termination connections must be adapted to the Quick Connect or solder options provided.

Q: What is the impact of changing from incandescent to LED illumination?

A: LED illumination provides superior reliability, longer operational life, and reduced power consumption. The color output remains red in both cases. The primary requirement is that the control circuit must supply 24VDC instead of 28VAC. Existing 28VAC supplies cannot directly power the LED variant without voltage conversion.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the KB16MKW01-28-JC and YB16MKW01-5C24-JC are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component use in applicable markets.

Q: What are the implications of the larger panel cutout diameter?

A: The substitute part requires a 16.00mm diameter panel cutout compared to 12.30mm for the original. If the existing panel has a 12.30mm hole, mechanical modification is necessary. Options include enlarging the hole, using a panel adapter, or installing a bezel ring to accommodate the larger diameter.

Q: Does the higher current rating of the substitute part affect compatibility?

A: No. The 3A rating of the YB16MKW01-5C24-JC exceeds the 1A requirement of the original circuit. Higher current capability is always acceptable in substitution scenarios, provided the circuit design does not depend on the lower current rating for protective functions.

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

A: The KB16MKW01-28-JC is obsolete, meaning NKK Switches no longer manufactures or supports this component. The YB16MKW01-5C24-JC is active production, ensuring continued availability, technical support, and supply chain reliability for future procurement and maintenance needs.