UB1111C-TR LED Blue Diffused 0603 SMD Equivalent & Substitute Parts

Part Overview

The UB1111C-TR is a blue diffused LED indicator manufactured by Stanley Electric Co, designed for discrete indication applications in the 0603 (1608 Metric) surface mount package. This component features a dominant wavelength of 470nm with a forward voltage of 3.4V at 10mA test current and a brightness rating of 34mcd. The UB1111C-TR is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support, production continuity, and component sourcing.

Substiute Parts

UB1111C-TR

Stanley Electric CoIn Stock: 824UB1111C-TR Datasheet

Current PartRFQ

CDB1111C-TR

Stanley Electric CoIn Stock: 917CDB1111C-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete UB1111C-TR is determined by the following critical parameters:

Package Compatibility: The substitute part must use the 0603 (1608 Metric) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Optical Characteristics: The substitute must provide blue LED indication with a dominant wavelength in the 470nm range to maintain visual consistency and functional performance in indication circuits.

Electrical Parameters: Forward voltage (Vf) and test current specifications must align with the original 3.4V at 10mA to ensure proper operation within existing circuit designs without requiring modifications to current-limiting resistor values.

Lens Properties: The diffused lens with white color and rectangular flat-top geometry must be maintained to preserve the optical appearance and light distribution characteristics of the original design.

Regulatory Compliance: REACH and ECCN classifications must remain consistent to support supply chain compliance requirements.

The substitute part CDB1111C-TR from Stanley Electric Co meets these substitution criteria as a functionally equivalent alternative.

Parameter Comparison

Engineering Selection Recommendations

Active Product Status: The CDB1111C-TR is classified as Active, providing long-term availability and supply chain stability compared to the obsolete UB1111C-TR. This status supports sustained production and future component sourcing without discontinuation risk.

Regulatory Compliance: Both parts maintain REACH Unaffected and EAR99 ECCN classifications, ensuring consistent compliance with export control and environmental regulations. The CDB1111C-TR additionally carries ROHS3 Compliant certification, meeting enhanced environmental and hazardous substance restrictions.

Moisture Sensitivity Consideration: The UB1111C-TR carries MSL 1 (Unlimited), while the CDB1111C-TR carries MSL 3 (168 Hours). This difference requires attention to storage and handling procedures during component receipt and PCB assembly to prevent moisture-induced failures. Standard MSL 3 handling protocols must be implemented.

Package Equivalence: Both parts use compatible 0603 (1608 Metric) surface mount packages, confirming mechanical and electrical interchangeability on existing PCB designs without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the CDB1111C-TR directly replace the UB1111C-TR without circuit modifications?

A: The CDB1111C-TR is mechanically and electrically compatible with the UB1111C-TR in the 0603 (1608 Metric) package. Both parts share the same package footprint and mounting type. However, the increased MSL rating (3 versus 1) requires implementation of appropriate moisture control procedures during storage and assembly.

Q: What is the significance of the MSL rating difference between these parts?

A: MSL 1 (Unlimited) indicates the UB1111C-TR has no moisture sensitivity restrictions. MSL 3 (168 Hours) for the CDB1111C-TR specifies that the component must be used within 168 hours of package opening under controlled humidity conditions (typically ≤30% relative humidity at 23°C). Exceeding this window requires baking the component at specified temperature and duration before assembly.

Q: Are there differences in optical or electrical performance between these parts?

A: The provided data does not include complete optical and electrical specifications for the CDB1111C-TR. Substitution is based on package compatibility, manufacturer consistency, and regulatory compliance. Detailed performance specifications should be obtained from the manufacturer datasheet for the CDB1111C-TR to confirm functional equivalence in specific application requirements.

Q: Why is the CDB1111C-TR preferred despite the higher MSL rating?

A: The CDB1111C-TR is classified as Active, ensuring continued availability and supply chain support. The UB1111C-TR is obsolete, creating sourcing risk and potential discontinuation. The MSL 3 requirement is manageable through standard industry handling procedures and does not prevent substitution.

Q: What compliance advantages does the CDB1111C-TR offer?

A: The CDB1111C-TR carries ROHS3 Compliant certification in addition to REACH Unaffected and EAR99 classifications. This provides enhanced environmental compliance documentation and supports supply chain requirements for restricted substance management.