KB01KW01-12-JB Equivalent & Substitute Parts

Part Overview

The KB01KW01-12-JB is an incandescent panel indicator manufactured by NKK Switches, designed for 12V applications with a 60mA current rating. This component features a white diffused lens with a round panel cutout of 0.48" (12.19mm) and solder lug termination. The product is classified as obsolete, making identification of suitable alternatives essential for ongoing system maintenance and new design implementations.

Substiute Parts

KB01KW01-12-JB

NKK SwitchesIn Stock: 1045KB01KW01-12-JB Datasheet

Current PartRFQ

YB01KW01-5F12-JB

NKK SwitchesIn Stock: 968YB01KW01-5F12-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB01KW01-12-JB is determined by the following critical parameters:

• Voltage Compatibility: 12V nominal operating voltage
• Panel Cutout Geometry: Round shape with mechanical fit requirements
• Termination Interface: Connection method (solder lug vs. quick connect)
• Regulatory Compliance: ROHS3 and REACH status alignment
• Optical Characteristics: Lens color, transparency, and size considerations

The identified substitute YB01KW01-5F12-JB shares the same 12V voltage rating and ROHS3 compliance. However, this substitute represents a technology transition from incandescent to LED architecture, introducing differences in current consumption (20mA vs. 60mA), panel cutout dimensions (0.63" vs. 0.48"), lens color (white vs. green), and termination style (quick connect vs. solder lug).

Parameter Comparison

Engineering Selection Recommendations

The KB01KW01-12-JB is obsolete, requiring substitution for new procurements. The YB01KW01-5F12-JB is an active product from the same manufacturer with identical voltage rating and regulatory compliance (ROHS3, MSL 1).

Selection of this substitute requires evaluation of the following design-level considerations:

• Panel Cutout Modification: The substitute requires a larger panel cutout (0.63" vs. 0.48"), necessitating mechanical redesign of the mounting interface.
• Termination Compatibility: The substitute uses quick connect termination rather than solder lug, requiring circuit board or harness redesign.
• Optical Indication Change: The substitute produces green indication rather than white, altering the visual signaling scheme.
• Current Reduction: The substitute operates at 20mA versus 60mA, reducing power consumption and thermal load.

Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating, supporting deployment in equivalent environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can the YB01KW01-5F12-JB directly replace the KB01KW01-12-JB without modification?

A: Direct replacement is not possible. The substitute differs in panel cutout dimensions (0.63" vs. 0.48"), termination style (quick connect vs. solder lug), and lamp color (green vs. white). Panel cutout enlargement and termination interface redesign are required.

Q: What is the primary reason for substitution?

A: The KB01KW01-12-JB is classified as obsolete. The YB01KW01-5F12-JB is an active product from the same manufacturer with compatible voltage rating and regulatory status.

Q: Are both components ROHS3 compliant?

A: Yes. Both the KB01KW01-12-JB and YB01KW01-5F12-JB are ROHS3 compliant with MSL rating 1 (unlimited moisture sensitivity).

Q: What is the impact of the technology change from incandescent to LED?

A: The LED substitute reduces current consumption from 60mA to 20mA, decreasing power dissipation and thermal output. The optical output changes from white diffused to green clear, affecting visual indication characteristics.

Q: Are there mechanical compatibility issues?

A: Yes. The panel cutout dimensions differ (0.48" for the main part vs. 0.63" for the substitute), and the lens size increases from 11.60mm to 15.00mm. Panel mounting hardware and cutout geometry require redesign.

Q: What termination changes are required?

A: The main part uses solder lug termination for direct PCB soldering. The substitute uses quick connect termination (0.110" / 2.8mm), requiring harness or connector interface modification.