XRCWHT-L1-0000-002B6 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-002B6 is a CreeLED XLamp® XR-C warm white LED in 3529 surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The XR-C series has been superseded by the XR-E series, which maintains mechanical and electrical compatibility while offering improved performance characteristics.

Substiute Parts

XRCWHT-L1-0000-002B6

CreeLED, Inc.In Stock: 978XRCWHT-L1-0000-002B6 Datasheet

Current PartRFQ

XREWHT-L1-0000-004E8

CreeLED, Inc.In Stock: 1113XREWHT-L1-0000-004E8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of XRCWHT-L1-0000-002B6 is based on the following criteria:

Mechanical Compatibility:

• Identical package type: 3529 (9073 Metric)
• Identical mounting type: Surface Mount
• Identical physical dimensions: 0.354" L x 0.276" W (9.00mm x 7.00mm)
• Identical maximum seated height: 0.181" (4.60mm)
• Identical viewing angle: 90°

Electrical Compatibility:

• Forward voltage (Vf) within acceptable range for warm white LED applications
• Current rating compatible with 350mA test conditions
• Maximum current rating sufficient for design requirements

Regulatory & Compliance:

• RoHS Compliant status maintained
• Moisture Sensitivity Level (MSL) 4 classification consistent
• REACH Unaffected status maintained

The XREWHT-L1-0000-004E8 qualifies as a direct substitute based on these parameters.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-004E8 is the qualified substitute for XRCWHT-L1-0000-002B6. Selection is based on:

Product Status: The substitute part is Active, ensuring long-term availability and supply chain stability compared to the obsolete main part.

Compliance: Both parts maintain RoHS Compliant status and REACH Unaffected classification, satisfying regulatory requirements for equivalent applications.

Mechanical Fit: Identical package dimensions and mounting characteristics ensure direct PCB compatibility without layout modifications.

Electrical Performance: The substitute operates at 3.3V typical forward voltage versus 4.6V for the main part, representing a 0.2V reduction. Both parts are rated for 350mA test current. The substitute's maximum current rating of 700mA provides greater operational headroom compared to the main part's 500mA maximum.

Thermal Characteristics: The substitute exhibits improved thermal resistance (8°C/W versus 12°C/W), resulting in better heat dissipation during operation.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-004E8 be used as a direct replacement for XRCWHT-L1-0000-002B6?

A: Yes. Both parts share identical mechanical specifications (3529 package, 9.00mm x 7.00mm dimensions, 4.60mm maximum height, 90° viewing angle) and are rated for the same 350mA test current. PCB footprints and mounting procedures are identical.

Q: What is the difference in forward voltage between these parts?

A: The main part operates at 4.6V typical forward voltage, while the substitute operates at 3.3V. This 0.2V difference must be considered in circuit design, particularly in current-limiting resistor calculations and power supply voltage margins.

Q: Are there differences in light output?

A: Yes. At 350mA test current and 25°C, the substitute produces 54lm (52lm ~ 57lm) compared to 43lm (40lm ~ 46lm) for the main part. The substitute also provides a specified CCT of 2700K and CRI of 80, whereas the main part does not specify these parameters.

Q: What is the significance of the thermal resistance difference?

A: The substitute's lower thermal resistance (8°C/W versus 12°C/W) indicates improved heat transfer from the LED junction to the PCB. This results in lower junction temperatures during operation, potentially extending component life and improving reliability in thermally constrained applications.

Q: Are packaging and handling requirements the same?

A: Yes. Both parts are classified as Moisture Sensitivity Level (MSL) 4 with a 72-hour floor life. Identical storage, handling, and reflow procedures apply to both components.

Q: What is the maximum current rating for each part?

A: The main part is rated for 500mA maximum current, while the substitute is rated for 700mA maximum current. The substitute provides greater current capacity for applications requiring higher drive levels.