KB15MKG01-FF Equivalent & Substitute Parts

Part Overview

The KB15MKG01-FF is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuitry with momentary operation. This component is rated for 0.4VA at 28V AC/DC with panel mount, snap-in installation. The part is currently obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and new design applications where equivalent functionality is required.

Substiute Parts

KB15MKG01-FF

NKK SwitchesIn Stock: 762KB15MKG01-FF Datasheet

Current PartRFQ

YB15MKW01-FB

NKK SwitchesIn Stock: 855YB15MKW01-FB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB15MKG01-FF is determined by the following critical parameters:

Electrical Compatibility: The substitute must support SPDT circuit configuration with momentary (On-Mom) operation. The substitute part must be rated for voltage and current values equal to or greater than the original specification (28V AC/DC, 0.4VA minimum).

Mechanical Compatibility: Panel mount, snap-in installation is required. The substitute must accommodate the same or smaller panel cutout diameter to ensure physical fit within existing enclosures. Round button actuator type must be maintained.

Termination Compatibility: The original part uses solder lug termination. Substitutes with alternative termination styles (such as quick connect) may be used if the circuit design permits modification of connection methodology.

Environmental & Compliance: Operating temperature range (-25°C to 70°C) and RoHS3 compliance are baseline requirements. Mechanical and electrical life ratings of the substitute should meet or exceed the original specification.

The YB15MKW01-FB meets these substitution criteria with enhanced electrical ratings (3A at 125V AC, 30V DC) and improved mechanical durability (1,000,000 mechanical cycles), while maintaining SPDT momentary operation and panel mount snap-in installation.

Parameter Comparison

Engineering Selection Recommendations

The YB15MKW01-FB is a direct functional substitute for the obsolete KB15MKG01-FF. Both components are manufactured by NKK Switches and maintain identical circuit topology (SPDT momentary operation) and mounting methodology (panel mount snap-in).

The YB15MKW01-FB provides superior electrical ratings (3A at 125V AC versus 0.4VA at 28V) and enhanced mechanical durability (1,000,000 cycles versus 100,000 cycles), making it suitable for applications requiring higher switching capacity or extended operational life.

Both parts maintain ROHS3 compliance and identical operating temperature specifications (-25°C to 70°C). The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Panel cutout diameter increases from 12.30mm to 16.00mm. Enclosure modifications may be required if the original panel opening cannot accommodate the larger diameter. Termination style changes from solder lug to solder with quick connect options; circuit board modifications may be necessary to accommodate the alternative termination methodology.

Frequently Asked Questions (FAQ)

Q: Can the YB15MKW01-FB directly replace the KB15MKG01-FF without circuit modifications?

A: Electrical and functional compatibility is confirmed. Circuit board modifications are required due to differences in termination style (solder lug versus solder/quick connect) and panel cutout diameter (12.30mm versus 16.00mm). Enclosure modifications may be necessary.

Q: What are the key differences in electrical ratings between these parts?

A: The KB15MKG01-FF is rated for 0.4VA at 28V AC/DC. The YB15MKW01-FB is rated for 3A at 125V AC and 30V DC. The substitute provides significantly higher current and voltage capacity, making it suitable for higher-power switching applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the KB15MKG01-FF and YB15MKW01-FB are ROHS3 compliant.

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

A: The YB15MKW01-FB requires a 16.00mm circular panel opening compared to 12.30mm for the original part. Existing panel cutouts must be enlarged or new panels fabricated to accommodate the substitute component.

Q: How do the mechanical life ratings compare?

A: The KB15MKG01-FF is rated for 100,000 mechanical cycles. The YB15MKW01-FB is rated for 1,000,000 mechanical cycles, providing tenfold improvement in mechanical durability.

Q: What termination options are available with the substitute part?

A: The YB15MKW01-FB offers both solder and quick connect (0.110" / 2.8mm) termination options, providing flexibility in circuit board integration compared to the solder lug termination of the original part.