KB15RKW01-12-JB Equivalent & Substitute Parts

Part Overview

The KB15RKW01-12-JB is an illuminated 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 panel-mounted front installation with incandescent white illumination at 12 VAC nominal voltage. The product is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

KB15RKW01-12-JB

NKK SwitchesIn Stock: 970KB15RKW01-12-JB Datasheet

Current PartRFQ

YB15RKW01-5F12-JB

NKK SwitchesIn Stock: 1121YB15RKW01-5F12-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB15RKW01-12-JB is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Circuit configuration: SPDT
• Switch function: On-Mom
• Mounting type: Panel Mount, Front
• Voltage rating: 125V AC minimum
• Operating temperature range: -25°C to 50°C minimum
• Actuator type: Rectangular, Button
• Termination style: Solder connection capability

Allowable Variation Parameters:

• Current rating: May exceed 1A (higher current capacity is acceptable for substitution)
• Illumination type: May differ (LED acceptable as alternative to incandescent)
• Illumination voltage: May differ if 12V supply is available (12 VAC or 12 VDC)
• Panel cutout diameter: Larger diameter acceptable if panel modification is feasible
• Mechanical and electrical life: Higher values acceptable

The substitute part YB15RKW01-5F12-JB meets all mandatory compatibility parameters while offering enhanced performance characteristics in current rating, mechanical life, and electrical life.

Parameter Comparison

Engineering Selection Recommendations

The YB15RKW01-5F12-JB is a qualified substitute for the KB15RKW01-12-JB based on the following engineering criteria:

Functional Compatibility: Both components maintain identical SPDT circuit configuration and On-Mom switch function, ensuring equivalent electrical behavior in control applications.

Electrical Ratings: The substitute part exceeds the original voltage and current specifications (3A versus 1A), providing enhanced capacity for higher-load applications while remaining compatible with 125V AC / 30V DC systems.

Environmental Compliance: Both parts are ROHS3 compliant with identical operating temperature ranges (-25°C to 50°C), ensuring regulatory alignment and thermal performance equivalence.

Product Status Advantage: The substitute part maintains active product status with NKK Switches, ensuring long-term availability and supply chain continuity compared to the obsolete original part.

Mechanical and Electrical Life Enhancement: The substitute demonstrates superior durability with 1,000,000 mechanical cycles and 100,000 electrical cycles versus 100,000 and 50,000 cycles respectively, extending component service life.

Installation Considerations: Panel cutout diameter increases from 12.30 mm to 16.00 mm, requiring panel modification for direct replacement. Illumination transitions from incandescent white (12 VAC) to LED green (12 VDC), necessitating illumination circuit verification.

Frequently Asked Questions (FAQ)

Q: Can YB15RKW01-5F12-JB directly replace KB15RKW01-12-JB without modifications?

A: Electrical and functional replacement is direct. Physical installation requires panel cutout enlargement from 12.30 mm to 16.00 mm diameter. Illumination circuit must supply 12 VDC instead of 12 VAC, and LED green illumination replaces incandescent white.

Q: What are the key differences in electrical performance?

A: The substitute part supports 3A current rating versus 1A in the original, providing higher load capacity. Both maintain 125V AC and 30V DC voltage ratings. SPDT circuit configuration and On-Mom function remain identical.

Q: Is the substitute part suitable for high-cycle applications?

A: Yes. The substitute demonstrates 10-fold improvement in mechanical life (1,000,000 versus 100,000 cycles) and doubled electrical life (100,000 versus 50,000 cycles), making it suitable for demanding cyclic applications.

Q: What illumination changes occur with substitution?

A: Original incandescent white illumination at 12 VAC is replaced with LED green illumination at 12 VDC. This requires illumination supply circuit modification and may alter visual indication appearance.

Q: Are both parts RoHS compliant?

A: Yes. Both KB15RKW01-12-JB and YB15RKW01-5F12-JB are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing.

Q: What is the availability status difference?

A: KB15RKW01-12-JB is classified as obsolete with limited inventory (936 pieces). YB15RKW01-5F12-JB maintains active product status with larger available inventory (1,091 pieces), ensuring supply continuity for new designs and ongoing maintenance.