CCL-CRS10USB-A Equivalent & Substitute Parts

Part Overview

The CCL-CRS10USB-A is a blue LED indication component manufactured by Lumex Opto/Components Inc., configured as a 4-SMD discrete surface mount device with a 4.6V forward voltage and 90mcd brightness rating. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The component features a clear, colorless square lens with a 180° viewing angle and is ROHS3 compliant with MSL 2A moisture sensitivity classification.

Substiute Parts

CCL-CRS10USB-A

Lumex Opto/Components Inc.In Stock: 1096CCL-CRS10USB-A Datasheet

Current PartRFQ

SML-LX2832USBC-TR

Lumex Opto/Components Inc.In Stock: 4483SML-LX2832USBC-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CCL-CRS10USB-A is determined by the following critical parameters:

Color Match: Blue LED specification is maintained across all alternatives.

Lens Transparency: Clear, colorless lens required for consistent optical performance.

Electrical Compatibility: Forward voltage (Vf) and test current (20mA) define the operating point. The substitute SML-LX2832USBC-TR operates at 3.1V, representing a 0.4V reduction within acceptable tolerance for blue LED applications.

Brightness Consideration: The substitute provides 126mcd versus the original 90mcd, representing a 40% increase in luminous intensity. This higher brightness is acceptable for indication applications where the original specification is a minimum requirement.

Viewing Angle: The original part specifies 180° viewing angle; the substitute provides 120°. This represents a narrower viewing cone and constitutes a functional change requiring circuit-level evaluation.

Mounting and Package: Both parts are surface mount devices. The original uses 4-SMD configuration; the substitute uses 2-PLCC (2832) package. Package footprint differences require PCB layout verification.

Compliance: Both parts maintain ROHS3 compliance and are unaffected by REACH regulations.

Parameter Comparison

Engineering Selection Recommendations

The SML-LX2832USBC-TR is an active production alternative to the obsolete CCL-CRS10USB-A. Both components are manufactured by Lumex Opto/Components Inc. and maintain ROHS3 compliance with equivalent regulatory status.

Electrical Substitution: The 0.4V reduction in forward voltage (4.6V to 3.1V) is within normal tolerance for blue LED applications and may reduce power dissipation in series resistor networks. The identical 20mA test current ensures compatibility with existing current-limiting circuit designs.

Optical Substitution: The 40% brightness increase (90mcd to 126mcd) is acceptable for indication applications. The 2nm wavelength shift (470nm to 468nm) is imperceptible to human vision and maintains blue color consistency.

Package Substitution: The transition from 4-SMD to 2-PLCC (2832) package requires PCB footprint redesign. The substitute is 0.65mm taller (2.10mm vs 1.45mm), which may affect clearance in constrained assemblies.

Viewing Angle Consideration: The reduction from 180° to 120° viewing angle narrows the optical cone. Applications requiring wide-angle visibility must evaluate whether 120° viewing angle meets functional requirements.

Compliance Status: Both parts are ROHS3 compliant and REACH unaffected, maintaining regulatory equivalence for procurement and deployment.

Frequently Asked Questions (FAQ)

Q: Can the SML-LX2832USBC-TR directly replace the CCL-CRS10USB-A without circuit modification?

A: Electrical substitution is possible without circuit changes due to compatible forward voltage and test current specifications. However, package footprint differences require PCB layout modification. The narrower 120° viewing angle may require functional validation depending on application requirements.

Q: What is the impact of the 0.4V forward voltage difference?

A: The SML-LX2832USBC-TR operates at 3.1V versus the original 4.6V. This reduction decreases voltage drop across the LED and increases voltage across the series resistor. For a fixed current-limiting resistor, this results in slightly higher LED current. Recalculation of series resistor values is recommended to maintain design current specifications.

Q: Does the higher brightness rating (126mcd vs 90mcd) affect circuit design?

A: The increased brightness is a performance enhancement for indication applications. No circuit modification is required. If the original design relied on the 90mcd brightness as a maximum specification, the higher output may require evaluation for visual comfort or power consumption impact.

Q: What are the package footprint differences?

A: The CCL-CRS10USB-A uses 4-SMD configuration (3.00mm L x 2.54mm W); the SML-LX2832USBC-TR uses 2-PLCC package (3.20mm L x 2.80mm W). The substitute is 0.2mm longer, 0.26mm wider, and 0.65mm taller. PCB layout and assembly clearance verification is required.

Q: Are there moisture sensitivity differences?

A: The original part specifies MSL 2A (4 weeks); the substitute specifies MSL 3 (168 hours). MSL 3 allows longer shelf life at controlled humidity. Both classifications are compatible with standard surface mount assembly processes.

Q: Is the wavelength shift (470nm to 468nm) significant?

A: The 2nm difference is within normal manufacturing tolerance for blue LEDs and is imperceptible to human vision. Color consistency is maintained across both parts.