XRCWHT-L1-0000-00B01 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-00B01 is a CreeLED XLamp® XR-C cool white LED in 3529 SMD package, rated for 350mA operation at 4.6V forward voltage with 97lm luminous flux at 25°C. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The XLamp® XR-C series has been superseded by the XLamp® XR-E series, which maintains electrical and mechanical compatibility while offering improved thermal characteristics and extended current ratings.

Substiute Parts

XRCWHT-L1-0000-00B01

CreeLED, Inc.In Stock: 1150XRCWHT-L1-0000-00B01 Datasheet

Current PartRFQ

XREWHT-L1-0000-00B01

CreeLED, Inc.In Stock: 841XREWHT-L1-0000-00B01 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-R250-00B01

CreeLED, Inc.In Stock: 849XREWHT-L1-R250-00B01 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XRCWHT-L1-0000-00B01 is based on the following critical parameters that must remain constant or compatible:

Mandatory Matching Parameters:

• Color and CCT Range: White, Cool (5000K ~ 10000K)
• Luminous Flux @ 25°C: 97lm (94lm ~ 100lm) at 350mA test current
• CRI: 75 (Typ)
• Package / Case: 3529 (9073 Metric)
• Physical Dimensions: 0.354" L x 0.276" W (9.00mm x 7.00mm)
• Height - Seated (Max): 0.181" (4.60mm)
• Viewing Angle: 90°
• Mounting Type: Surface Mount
• RoHS Compliance: RoHS Compliant
• MSL: 4 (72 Hours)

Allowable Parameter Variations:

• Forward Voltage (Vf): 3.3V to 4.6V (within typical operating range)
• Maximum Current: 500mA to 1A (higher rating acceptable for same test current)
• Thermal Resistance: 8°C/W to 12°C/W (lower values indicate improved thermal performance)
• Lumens/Watt: 79 lm/W to 84 lm/W (efficiency improvement acceptable)
• Product Status: Active substitutes preferred over obsolete

Both substitute parts (XREWHT-L1-0000-00B01 and XREWHT-L1-R250-00B01) meet all mandatory parameters and fall within allowable variations, making them direct parametric equivalents for the XRCWHT-L1-0000-00B01.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-00B01 and XREWHT-L1-R250-00B01 are direct parametric equivalents for the obsolete XRCWHT-L1-0000-00B01. Both substitute parts are classified as Active products, ensuring long-term availability and supply chain continuity.

Key advantages of the XLamp® XR-E substitutes:

• Active product status provides extended procurement window and supply reliability
• Improved thermal resistance (8°C/W vs. 12°C/W) enables better heat dissipation in thermal-constrained applications
• Enhanced efficiency (84 lm/W vs. 79 lm/W) at identical test current and luminous flux
• Lower forward voltage (3.3V vs. 4.6V) reduces power consumption in constant-current driver circuits
• Higher maximum current rating (1A vs. 500mA) provides design flexibility for future applications

Both substitute parts maintain identical electrical performance at the 350mA test current, identical optical characteristics (97lm, 90° viewing angle, 75 CRI), and identical mechanical compatibility (3529 package, 9.00mm x 7.00mm footprint, 4.60mm height).

The choice between XREWHT-L1-0000-00B01 and XREWHT-L1-R250-00B01 is determined by packaging requirements: standard Tape & Reel (TR) packaging is available for both part numbers, with the R250 designation indicating a specific reel configuration. Selection should be based on assembly equipment compatibility and procurement specifications.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-00B01 and XREWHT-L1-R250-00B01 be used interchangeably with XRCWHT-L1-0000-00B01?

A: Yes. Both XLamp® XR-E substitutes meet all mandatory electrical, optical, and mechanical parameters. At the 350mA test current, luminous flux output is identical (97lm). Package dimensions, viewing angle, CRI, and color temperature range are identical. The substitutes are direct drop-in replacements for PCB assembly and reflow soldering processes.

Q: What is the difference between XREWHT-L1-0000-00B01 and XREWHT-L1-R250-00B01?

A: Both parts are electrically and optically identical. The difference is in packaging configuration. The R250 designation indicates a specific reel size or quantity per reel for automated assembly lines. Selection depends on your pick-and-place equipment specifications and procurement volume requirements. Consult your assembly equipment documentation or supplier for reel compatibility details.

Q: Why is the forward voltage lower on the XR-E substitutes (3.3V vs. 4.6V)?

A: The XLamp® XR-E series represents an improved generation of the XR-C series with enhanced semiconductor design. The lower forward voltage is a result of improved die efficiency and does not affect compatibility. In constant-current driver circuits (standard for LED applications), this voltage difference is automatically compensated by the driver. In constant-voltage applications, the lower voltage may result in slightly reduced power consumption.

Q: Are there any thermal design considerations when substituting to XR-E?

A: The XR-E substitutes have improved thermal resistance (8°C/W vs. 12°C/W), meaning they dissipate heat more efficiently. This is a performance improvement that does not create compatibility issues. Existing thermal designs will continue to function correctly; thermal performance will be enhanced.

Q: Do the substitute parts have the same compliance certifications?

A: Yes. Both XREWHT-L1-0000-00B01 and XREWHT-L1-R250-00B01 are RoHS Compliant, REACH Unaffected, classified as EAR99, and carry HTSUS code 8541.41.0000, identical to the original XRCWHT-L1-0000-00B01. MSL rating is 4 (72 Hours) for all three parts.

Q: What is the maximum current rating difference, and does it affect my application?

A: The original part is rated for 500mA maximum current; the XR-E substitutes are rated for 1A maximum current. Your application operates at 350mA test current, well within both specifications. The higher maximum rating on the substitutes provides design margin and does not affect current operation or reliability.

Q: Can I mix XRCWHT-L1-0000-00B01 and XREWHT-L1-0000-00B01 in the same assembly?

A: Yes. Both parts are electrically and mechanically compatible. At the 350mA operating current, they produce identical luminous flux (97lm) and have identical optical characteristics. Mixed populations in the same assembly will have identical color temperature and brightness performance.