XRCWHT-L1-0000-004B4 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-004B4 is an XLamp® XR-C White LED in 3529 (9073 Metric) surface mount package, rated for 350mA operation at 4.6V forward voltage. This component is classified as obsolete, making identification of compatible substitutes essential for ongoing production and maintenance applications. The part delivers 54lm at 25°C under test conditions with a 90° viewing angle and is RoHS compliant with MSL 4 moisture sensitivity rating.

Substiute Parts

XRCWHT-L1-0000-004B4

CreeLED, Inc.In Stock: 806XRCWHT-L1-0000-004B4 Datasheet

Current PartRFQ

XREWHT-L1-0000-006E5

CreeLED, Inc.In Stock: 2150XREWHT-L1-0000-006E5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the XRCWHT-L1-0000-004B4 is determined by the following critical parameters:

• Package / Case: 3529 (9073 Metric) surface mount footprint
• Mounting Type: Surface Mount
• Viewing Angle: 90°
• Forward Voltage Range: Compatible operation within typical circuit design tolerances
• Current Rating: Capable of 350mA test current operation
• Thermal Characteristics: Package thermal resistance suitable for application thermal management
• Compliance: RoHS compliant status and MSL rating

The XREWHT-L1-0000-006E5 qualifies as a substitute based on identical package geometry, surface mount configuration, 90° viewing angle, compatible forward voltage (3.3V vs. 4.6V), and equivalent current handling capability. Both parts maintain RoHS compliance and MSL 4 rating, ensuring regulatory and environmental compatibility.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-006E5 is the qualified substitute for the obsolete XRCWHT-L1-0000-004B4. Selection is supported by:

• Identical 3529 (9073 Metric) package footprint and surface mount configuration, ensuring PCB compatibility without layout modification
• Matching 90° viewing angle and current test rating of 350mA, maintaining optical and electrical performance characteristics
• Forward voltage differential of 0.2V (4.6V to 3.3V) is within typical circuit design tolerance for LED applications
• Active product status ensures ongoing availability and supply chain continuity
• RoHS compliance and MSL 4 rating maintain regulatory and environmental requirements
• Improved thermal resistance (8°C/W vs. 12°C/W) provides enhanced thermal management capability
• Higher luminous efficacy (56 lm/W vs. 44 lm/W) and flux output (65lm vs. 54lm) deliver improved performance metrics

Frequently Asked Questions (FAQ)

Q: Can the XREWHT-L1-0000-006E5 be used as a direct replacement for the XRCWHT-L1-0000-004B4?

A: Yes. Both parts share identical package geometry (3529 / 9073 Metric), surface mount configuration, and 90° viewing angle. The forward voltage difference of 0.2V is within standard circuit design tolerance for LED applications. Verify circuit design accommodates the 3.3V forward voltage specification of the substitute part.

Q: What are the key differences between these two parts?

A: The XREWHT-L1-0000-006E5 is from the XLamp® XR-E series with active product status, while the XRCWHT-L1-0000-004B4 is from the obsolete XLamp® XR-C series. The substitute delivers higher flux (65lm vs. 54lm), improved efficiency (56 lm/W vs. 44 lm/W), better thermal resistance (8°C/W vs. 12°C/W), and includes a defined CCT of 4000K with CRI of 75.

Q: Are there any PCB layout considerations for substitution?

A: No. Both parts use the identical 3529 (9073 Metric) package with matching dimensions (9.00mm x 7.00mm) and seated height (4.60mm). Existing PCB layouts require no modification.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both parts are RoHS compliant and carry MSL 4 (72 Hours) moisture sensitivity rating, ensuring equivalent regulatory and environmental compliance.

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

A: The XREWHT-L1-0000-006E5 operates at 3.3V versus 4.6V for the original part. This 0.2V reduction typically results in lower power dissipation and improved efficiency. Verify that the circuit design and current-limiting resistor values accommodate the lower forward voltage specification.