KB15SKW01B-BB Equivalent & Substitute Parts

Part Overview

The KB15SKW01B-BB is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with 1A current rating at 125V AC. This component is designed for standard panel mount applications with front-facing actuator orientation. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and design continuity in legacy systems.

Substiute Parts

KB15SKW01B-BB

NKK SwitchesIn Stock: 901KB15SKW01B-BB Datasheet

Current PartRFQ

YB15SKW01-BB

NKK SwitchesIn Stock: 1036YB15SKW01-BB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The YB15SKW01-BB qualifies as a functional substitute based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Circuit configuration: SPDT (identical)
• Switch function: On-Mom momentary operation (identical)
• Voltage rating - AC: 125V (identical)
• Voltage rating - DC: 30V (identical)
• Mounting type: Panel Mount, Front (identical)
• Actuator type: Square Button (identical)
• Operating temperature range: -25°C to 70°C (identical)
• RoHS compliance: ROHS3 Compliant (identical)

Allowable Differences:

• Current rating: 3A vs. 1A (higher rating provides backward compatibility)
• Mechanical life: 1,000,000 cycles vs. 100,000 cycles (enhanced durability)
• Electrical life: 100,000 cycles vs. 50,000 cycles (extended operational life)
• Panel cutout diameter: 16.00mm vs. 12.30mm (requires panel modification)
• Termination style: Solder, Quick Connect vs. Solder Lug (requires wiring adaptation)
• Product status: Active vs. Obsolete (ensures ongoing availability)

Parameter Comparison

Engineering Selection Recommendations

The YB15SKW01-BB is electrically compatible with the KB15SKW01B-BB for applications requiring SPDT momentary switching at 125V AC / 30V DC. Both components maintain identical compliance certifications (ROHS3, REACH Unaffected, EAR99 classification).

The substitute part offers enhanced reliability through increased mechanical and electrical life ratings, suitable for applications where the original 1A current specification is not exceeded. The higher 3A current rating of the YB15SKW01-BB provides operational margin without compromising circuit performance.

Physical integration requires consideration of panel cutout diameter modification (16.00mm vs. 12.30mm) and termination style adaptation (Quick Connect vs. Solder Lug). These mechanical differences do not affect electrical function but require design review for panel layout and wiring harness compatibility.

Frequently Asked Questions (FAQ)

Q: Can YB15SKW01-BB directly replace KB15SKW01B-BB without modification?

A: Electrical substitution is direct. Mechanical integration requires panel cutout enlargement from 12.30mm to 16.00mm diameter and wiring harness adaptation for the Quick Connect termination option.

Q: What is the significance of the higher 3A current rating on the substitute part?

A: The YB15SKW01-BB 3A rating exceeds the original 1A specification, providing operational margin. Applications drawing 1A or less operate within the substitute's rated capacity without derating.

Q: Are both parts RoHS compliant?

A: Both KB15SKW01B-BB and YB15SKW01-BB are ROHS3 Compliant with identical REACH and ECCN classifications.

Q: Why does the substitute have different mechanical and electrical life ratings?

A: The YB15SKW01-BB demonstrates enhanced durability (1,000,000 mechanical cycles vs. 100,000; 100,000 electrical cycles vs. 50,000), reflecting design improvements in the active product line.

Q: What packaging differences exist between these parts?

A: KB15SKW01B-BB is supplied in standard packaging; YB15SKW01-BB is supplied in bulk packaging. Both are new original stock from NKK Switches.

Q: Are there temperature or environmental differences between the parts?

A: Both components operate across identical temperature ranges (-25°C to 70°C) with MSL 1 (Unlimited) moisture sensitivity classification.