XRCWHT-L1-0000-003F7 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-003F7 is a Cree XLamp® XR-C warm white LED (3200K) designed for surface mount applications in 3529 (9073 Metric) package format. This part operates at 4.6V forward voltage with 350mA test current, delivering 49lm at 25°C and 40 lm/W efficiency. The product is currently obsolete, necessitating identification of functionally equivalent active alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

XRCWHT-L1-0000-003F7

CreeLED, Inc.In Stock: 1060XRCWHT-L1-0000-003F7 Datasheet

Current PartRFQ

XREWHT-L1-0000-004F7

CreeLED, Inc.In Stock: 959XREWHT-L1-0000-004F7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The XREWHT-L1-0000-004F7 qualifies as a direct substitute based on the following alignment of critical parameters:

• Color Temperature Match: Both parts deliver warm white light at 3200K CCT
• Package Compatibility: Identical 3529 (9073 Metric) SMD package with matching footprint dimensions (9.00mm x 7.00mm) and seated height (4.60mm max)
• Viewing Angle: Both maintain 90° viewing angle
• Compliance Alignment: Both are RoHS Compliant with identical MSL rating (4, 72 Hours)
• Electrical Operating Range: Test current of 350mA falls within the substitute's maximum current specification (700mA), ensuring safe operation

The substitute represents an evolution within the XLamp® product family (XR-E vs. XR-C), offering improved performance metrics while maintaining mechanical and thermal compatibility.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-004F7 is the appropriate substitute for the obsolete XRCWHT-L1-0000-003F7 based on the following engineering criteria:

• Product Status: The substitute is Active, ensuring continued availability and manufacturing support, whereas the main part is Obsolete
• Regulatory Compliance: Both parts maintain identical RoHS Compliance and REACH Unaffected status, satisfying regulatory requirements without design modification
• Thermal Performance: The substitute exhibits superior thermal resistance (8°C/W vs. 12°C/W), reducing junction temperature rise and improving long-term reliability
• Electrical Compatibility: Lower forward voltage (3.3V vs. 4.6V) and higher maximum current rating (700mA vs. 500mA) provide improved operational margin
• Photometric Performance: Enhanced luminous flux (54lm vs. 49lm) and efficiency (47 lm/W vs. 40 lm/W) at identical test conditions deliver superior light output without circuit redesign
• Mechanical Fit: Identical package dimensions and footprint ensure direct PCB compatibility without layout modification

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-004F7 be used as a direct drop-in replacement for XRCWHT-L1-0000-003F7?

A: Yes. Both parts share identical 3529 (9073 Metric) package geometry, footprint dimensions (9.00mm x 7.00mm), and seated height (4.60mm). No PCB layout modification is required. The substitute operates at lower forward voltage (3.3V vs. 4.6V), which may reduce circuit power dissipation.

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

A: The substitute exhibits 0.2V lower forward voltage (3.3V vs. 4.6V) and higher maximum current rating (700mA vs. 500mA). At the standard 350mA test current, both parts operate safely. The substitute delivers 10% higher luminous flux (54lm vs. 49lm) and 18% higher efficiency (47 lm/W vs. 40 lm/W).

Q: Are there thermal considerations when substituting?

A: The substitute provides superior thermal performance with 8°C/W package thermal resistance compared to 12°C/W for the main part. This 33% improvement in thermal resistance reduces junction temperature rise, enhancing reliability and potentially extending operational life.

Q: Do both parts meet the same compliance standards?

A: Yes. Both XRCWHT-L1-0000-003F7 and XREWHT-L1-0000-004F7 are RoHS Compliant, REACH Unaffected, and carry identical Moisture Sensitivity Level (MSL 4, 72 Hours) ratings. No compliance documentation changes are required.

Q: What is the color temperature match between these parts?

A: Both parts deliver identical warm white light at 3200K CCT with 80 CRI (Color Rendering Index). Color appearance and rendering characteristics are matched for visual consistency in lighting applications.

Q: Are there any packaging format differences?

A: The substitute is supplied in Tape & Reel (TR) format, whereas the main part packaging is not specified. Both parts use identical SMD package specifications and are suitable for automated assembly processes.