CL-425F-UCC-SD-TS RGB LED Equivalent & Substitute Parts

Part Overview

The CL-425F-UCC-SD-TS is a surface mount right-angle RGB LED from Citizen's CL-425 series featuring a diffused lens design with common anode configuration. This component is classified as obsolete, requiring identification of suitable substitute parts for ongoing applications. The primary need for alternative models stems from the obsolete product status and limited manufacturing availability, necessitating evaluation of compatible replacements with equivalent functional characteristics.

Substiute Parts

CL-425F-UCC-SD-TS

CitizenIn Stock: 769CL-425F-UCC-SD-TS Datasheet

Current PartRFQ

CL-426F-AACC-SD-TS

CitizenIn Stock: 1880CL-426F-AACC-SD-TS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution evaluation for the CL-425F-UCC-SD-TS is based on alignment of the following critical parameters:

Primary Compatibility Criteria:

• RGB color configuration (Red, Green, Blue)
• Surface mount, right-angle mounting type
• 4-SMD, no-lead package / case format
• Forward voltage characteristics (Vf) within acceptable operating range for each color channel
• Test current specifications (5mA per channel)
• Moisture sensitivity level (MSL 3)
• ECCN and HTSUS classification alignment

Secondary Considerations:

• Lens transparency and lens size characteristics
• Millicandela ratings (brightness specifications)
• Physical dimensions and height constraints
• Wavelength specifications

The CL-426F-AACC-SD-TS qualifies as a substitute candidate based on matching core electrical parameters and mechanical form factors, despite configuration differences and enhanced brightness characteristics.

Parameter Comparison

Engineering Selection Recommendations

CL-425F-UCC-SD-TS (Obsolete): The CL-425F-UCC-SD-TS is classified as an obsolete component with limited availability. Continued sourcing of this part for new designs or production runs is not recommended due to end-of-life status. Active inventory of 752 pieces may be available for current production requirements, but long-term supply assurance cannot be established.

CL-426F-AACC-SD-TS (Active - Recommended Substitute): The CL-426F-AACC-SD-TS is an active product in the Citizen CL-426 series with confirmed RoHS compliance and REACH unaffected status. This part is suitable for new applications requiring RGB LED functionality. The component demonstrates higher brightness levels across all color channels and smaller physical dimensions, offering design flexibility for space-constrained applications.

Configuration Change Consideration: The CL-426F-AACC-SD-TS employs common cathode configuration versus the common anode design of the CL-425F-UCC-SD-TS. This electrical configuration difference requires circuit design modification but does not prevent functional substitution when appropriate driver or control circuit adjustments are implemented.

Frequently Asked Questions (FAQ)

Q: Can the CL-426F-AACC-SD-TS directly replace the CL-425F-UCC-SD-TS without circuit modifications? A: Direct drop-in replacement is not possible due to the common anode versus common cathode configuration difference. Circuit design modification is required to accommodate the different electrical configuration of the substitute part.

Q: What are the key differences in electrical performance between these two RGB LEDs? A: The CL-426F-AACC-SD-TS exhibits higher brightness across all color channels (120mcd red, 250mcd green, 62mcd blue) compared to the CL-425F-UCC-SD-TS (20mcd red, 180mcd green, 45mcd blue). Forward voltage specifications differ slightly for red and green channels, with the CL-426F variant requiring 0.15V higher red voltage and 0.4V lower green voltage. Blue channel voltage is nearly identical.

Q: Are the physical dimensions compatible for PCB layout purposes? A: The CL-426F-AACC-SD-TS is smaller (2.80mm L x 0.85mm W x 0.35mm H) compared to the CL-425F-UCC-SD-TS (3.25mm L x 1.35mm W x 0.45mm H). Both parts maintain the same 4-SMD, no-lead package format and right-angle surface mount configuration. Layout footprint must be re-evaluated for the smaller dimensions.

Q: What regulatory and compliance certifications apply to these components? A: Both components are classified as ECCN EAR99 and HTSUS 8541.41.0000. The CL-426F-AACC-SD-TS carries RoHS compliance certification and REACH unaffected status, confirming environmental regulation alignment for regulated applications.

Q: What is the moisture sensitivity level for both parts? A: Both the CL-425F-UCC-SD-TS and CL-426F-AACC-SD-TS maintain MSL 3 (168 hours) moisture sensitivity rating, requiring equivalent moisture control during storage and assembly processing.