KB03KW01-5C-JC LED Panel Indicator Equivalent & Substitute Parts

Part Overview

The KB03KW01-5C-JC is an LED panel indicator manufactured by NKK Switches, classified as a red LED with clear lens transparency. This component is designed for illuminated panel applications requiring a 1.9V forward voltage at 30mA maximum current. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where this indicator type is specified.

Substiute Parts

KB03KW01-5C-JC

NKK SwitchesIn Stock: 941KB03KW01-5C-JC Datasheet

Current PartRFQ

YB03KW01-5C-JC

NKK SwitchesIn Stock: 881YB03KW01-5C-JC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB03KW01-5C-JC is determined by the following critical parameters:

Electrical Compatibility:

• Lamp color must be red
• Forward voltage (Vf) must be 1.9V (typical)
• Maximum current rating must accommodate or exceed 30mA operational requirements

Mechanical Compatibility:

• Panel cutout shape must be round
• Physical lens dimensions and mounting interface must be compatible with the original 0.48" (12.19mm) round cutout specification
• Lens style classification must support the rectangle with flat top configuration

Regulatory & Environmental:

• RoHS3 compliance required
• MSL rating of 1 (unlimited moisture sensitivity level)
• REACH unaffected status

The YB03KW01-5C-JC qualifies as a direct substitute based on matching electrical parameters (1.9V, red lamp, red lens) and regulatory compliance. Variations in lens transparency (diffused vs. clear), current rating (40mA vs. 30mA), and panel cutout dimensions represent design trade-offs that must be evaluated within the specific application context.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: YB03KW01-5C-JC

The YB03KW01-5C-JC is the designated substitute for KB03KW01-5C-JC applications. Both components maintain identical electrical specifications (1.9V forward voltage, red lamp and lens colors) and regulatory compliance (ROHS3, REACH unaffected, MSL 1). The YB series component is currently in active production status, ensuring long-term availability and supply chain continuity.

Design Considerations:

Substitution requires evaluation of three specific differences:

1. Panel Cutout Dimensions: The YB03KW01-5C-JC requires a 0.63" (16.00mm) round cutout versus the original 0.48" (12.19mm) specification. Panel modifications or mechanical redesign may be necessary.

2. Lens Transparency: The substitute features diffused lens transparency compared to the clear lens of the original part. This affects light diffusion characteristics and may alter visual appearance in the application.

3. Termination Interface: The YB03KW01-5C-JC includes quick connect termination (0.110" / 2.8mm), whereas the original part termination style is not specified. Wiring interface compatibility must be confirmed.

4. Current Rating: The substitute supports 40mA maximum current, exceeding the original 30mA specification. This provides operational margin but does not affect compatibility for applications designed to the original 30mA rating.

All components meet identical regulatory and environmental requirements, supporting direct electrical substitution where mechanical and interface modifications are feasible.

Frequently Asked Questions (FAQ)

Q: Can YB03KW01-5C-JC be used as a direct drop-in replacement for KB03KW01-5C-JC?

A: Electrical substitution is valid based on matching 1.9V forward voltage and red lamp specifications. However, mechanical compatibility requires panel cutout modification from 0.48" (12.19mm) to 0.63" (16.00mm) diameter. Termination interface differences must also be addressed.

Q: What is the impact of diffused lens transparency versus clear lens?

A: Lens transparency affects light diffusion and visual appearance. Clear lenses provide focused light output, while diffused lenses scatter light over a wider area. Application requirements determine which characteristic is acceptable.

Q: Are both parts RoHS3 compliant?

A: Yes. Both KB03KW01-5C-JC and YB03KW01-5C-JC are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Why is the KB03KW01-5C-JC listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured by NKK Switches. The YB03KW01-5C-JC represents the active production alternative within the NKK Switches LED indicator portfolio.

Q: Can the higher 40mA current rating of YB03KW01-5C-JC cause issues in applications designed for 30mA?

A: No. The 40mA rating is the maximum current specification. Applications designed for 30mA operation will function within the substitute's rated limits, providing operational margin.

Q: What termination differences exist between these parts?

A: The KB03KW01-5C-JC termination style is not specified in available documentation. The YB03KW01-5C-JC features quick connect termination (0.110" / 2.8mm). Wiring interface compatibility must be confirmed for your specific application.

Q: Are moisture sensitivity levels identical?

A: Yes. Both parts carry MSL rating 1 (unlimited), indicating no moisture sensitivity restrictions for storage or handling.