XRCWHT-L1-0000-003F6 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-003F6 is a CreeLED XLamp® XR-C warm white LED (3700K) designed for surface mount applications in 3529 metric packaging. This part is classified as obsolete, making identification of compatible substitutes essential for ongoing production and maintenance applications. The XR-C series has been superseded by newer generations within the XLamp® product line, requiring engineers to evaluate functionally equivalent alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

XRCWHT-L1-0000-003F6

CreeLED, Inc.In Stock: 815XRCWHT-L1-0000-003F6 Datasheet

Current PartRFQ

XREWHT-L1-0000-004F6

CreeLED, Inc.In Stock: 921XREWHT-L1-0000-004F6 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The XREWHT-L1-0000-004F6 qualifies as a direct substitute based on the following alignment of critical parameters:

Electrical Compatibility:

• Identical color temperature (3700K warm white)
• Identical CRI rating (75 Typ)
• Identical viewing angle (90°)
• Compatible test current (350mA nominal operation)
• Forward voltage within acceptable operating range (3.3V vs. 4.6V)

Mechanical Compatibility:

• Identical package type (3529 / 9073 Metric)
• Identical physical dimensions (9.00mm × 7.00mm × 4.60mm max height)
• Identical mounting type (Surface Mount, SMD)

Regulatory & Compliance:

• Identical RoHS compliance status
• Identical MSL rating (4, 72 Hours)
• Identical REACH and ECCN classifications

The substitute part represents an evolution within the XLamp® product family (XR-E generation), offering improved performance metrics while maintaining full mechanical and electrical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-004F6 is the appropriate substitute for the obsolete XRCWHT-L1-0000-003F6 based on the following factors:

Product Status: The substitute part carries Active status, ensuring continued availability and manufacturing support from CreeLED, Inc., whereas the main part is classified as Obsolete.

Regulatory Compliance: Both parts maintain identical RoHS compliance, REACH status, and MSL ratings, eliminating compliance-related redesign requirements.

Electrical Performance: The substitute delivers measurable improvements in luminous flux (54 lm vs. 49 lm at 350mA test current) and efficiency (47 lm/W vs. 40 lm/W), while operating at a lower forward voltage (3.3V vs. 4.6V). These characteristics result in reduced power dissipation and improved thermal performance.

Thermal Characteristics: The substitute exhibits superior thermal resistance (8°C/W vs. 12°C/W), enabling better heat dissipation in thermally constrained applications.

Mechanical Interchangeability: Identical package dimensions and mounting type ensure direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the XREWHT-L1-0000-004F6 be used as a direct drop-in replacement for the XRCWHT-L1-0000-003F6?

A: Yes. Both parts share identical package type (3529 metric), physical dimensions, mounting method (surface mount), and electrical operating parameters at the nominal test current of 350mA. No PCB redesign or circuit modification is required.

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

A: The substitute represents a newer generation (XR-E vs. XR-C) with improved performance: higher luminous flux output (54 lm vs. 49 lm), better efficiency (47 lm/W vs. 40 lm/W), lower forward voltage (3.3V vs. 4.6V), higher maximum current rating (700mA vs. 500mA), and superior thermal resistance (8°C/W vs. 12°C/W).

Q: Are there any circuit design considerations when switching to the substitute part?

A: The lower forward voltage (3.3V vs. 4.6V) of the substitute may require minor adjustment to current-limiting resistor values if the circuit was precisely tuned to the original part's specifications. However, at the standard 350mA test current, both parts operate within compatible electrical ranges. Verify that your current-limiting circuit accommodates the substitute's 700mA maximum rating if higher currents are anticipated.

Q: Do both parts have the same color temperature and CRI?

A: Yes. Both parts are specified at 3700K warm white with a CRI of 75 (Typ), ensuring identical color characteristics and rendering properties.

Q: What is the packaging difference between these parts?

A: The main part is supplied in standard packaging, while the substitute is available in Tape & Reel (TR) format. Both use the same 3529 metric package. Tape & Reel packaging is standard for high-volume production and does not affect component performance or compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the XRCWHT-L1-0000-003F6 and XREWHT-L1-0000-004F6 are RoHS compliant with identical MSL ratings (4, 72 Hours), meeting the same environmental and handling requirements.