XRCWHT-L1-0000-00AF4 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-00AF4 is a CreeLED XLamp® XR-C neutral white LED (4750K) in 3529 surface mount package, rated for 350mA operation at 4.6V forward voltage. This part is classified as obsolete. Equivalent substitute parts from the active XLamp® XR-E series are available to maintain design continuity and ensure supply chain availability for applications requiring neutral white LED lighting with compatible electrical and mechanical specifications.

Substiute Parts

XRCWHT-L1-0000-00AF4

CreeLED, Inc.In Stock: 812XRCWHT-L1-0000-00AF4 Datasheet

Current PartRFQ

XREWHT-L1-0000-00AE4

CreeLED, Inc.In Stock: 1207XREWHT-L1-0000-00AE4 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-0000-00AE5

CreeLED, Inc.In Stock: 1149XREWHT-L1-0000-00AE5 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-0000-00AF4

CreeLED, Inc.In Stock: 1056XREWHT-L1-0000-00AF4 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-0000-00AF5

CreeLED, Inc.In Stock: 865XREWHT-L1-0000-00AF5 Datasheet

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XREWHT-L1-R250-00AE4

CreeLED, Inc.In Stock: 920XREWHT-L1-R250-00AE4 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-R250-00AE5

CreeLED, Inc.In Stock: 1154XREWHT-L1-R250-00AE5 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-R250-00AF4

CreeLED, Inc.In Stock: 1108XREWHT-L1-R250-00AF4 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-R250-00AF5

CreeLED, Inc.In Stock: 921XREWHT-L1-R250-00AF5 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XRCWHT-L1-0000-00AF4 is based on the following critical parameters that must remain compatible:

Mechanical Compatibility:

• Package / Case: 3529 (9073 Metric) — identical across all substitutes
• Size / Dimension: 0.354" L x 0.276" W (9.00mm x 7.00mm) — identical across all substitutes
• Height - Seated (Max): 0.181" (4.60mm) — identical across all substitutes
• Mounting Type: Surface Mount — identical across all substitutes

Electrical Compatibility:

• Color: White, Neutral — maintained across all substitutes
• Viewing Angle: 90° — identical across all substitutes
• Current - Test: 350mA — identical across all substitutes
• Flux @ 25°C, 350mA: 91lm (87lm ~ 94lm) — identical across all substitutes
• CRI (Color Rendering Index): 75 (Typ) — identical across all substitutes

Acceptable Variations:

• CCT (K): Substitutes available in 4000K, 4300K, and 4750K to match application requirements
• Forward Voltage (Vf): XR-E series operates at 3.3V (versus 4.6V for XR-C), within acceptable design tolerance for neutral white LED applications
• Lumens/Watt: XR-E series delivers 79 lm/W (versus 74 lm/W for XR-C), representing improved efficiency
• Current - Max: XR-E series rated to 700mA (versus 500mA for XR-C), providing additional operational headroom
• Thermal Resistance: XR-E series rated at 8°C/W (versus 12°C/W for XR-C), indicating superior thermal performance

All substitute parts are from the active XLamp® XR-E series and maintain identical packaging, mounting, and optical specifications while offering improved electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts from the XLamp® XR-E series are active products with full RoHS compliance and REACH unaffected status, ensuring regulatory compliance for new designs and production continuity.

For 4750K Color Temperature Match: Select XREWHT-L1-0000-00AF4 or XREWHT-L1-R250-00AF4 to maintain the original 4750K neutral white specification. Both variants are electrically and mechanically identical, differing only in tape configuration.

For Alternative Color Temperatures: XREWHT-L1-0000-00AE4 (4500K), XREWHT-L1-0000-00AE5 (4000K), and XREWHT-L1-0000-00AF5 (4300K) provide correlated color temperature options within the neutral white range while maintaining identical optical output (91lm) and CRI (75).

Electrical Performance Advantage: All XR-E substitutes operate at 3.3V forward voltage versus 4.6V for the original XR-C part, reducing power dissipation by approximately 5.7% at 350mA test current. Maximum current rating increases from 500mA to 700mA, providing additional design margin.

Thermal Performance Advantage: XR-E series thermal resistance of 8°C/W versus 12°C/W for XR-C represents a 33% improvement in thermal efficiency, enabling better heat dissipation in thermally constrained applications.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-00AF4 directly replace XRCWHT-L1-0000-00AF4 without PCB modification?

A: Yes. Both parts use identical 3529 (9073 Metric) packages with matching footprints, dimensions (9.00mm x 7.00mm), and mounting heights (4.60mm maximum). No PCB layout changes are required.

Q: What is the difference between XREWHT-L1-0000-00AF4 and XREWHT-L1-R250-00AF4?

A: Both parts are electrically and optically identical. The designation difference indicates tape configuration variation. Selection depends on assembly equipment compatibility and reel specifications.

Q: How does the 3.3V forward voltage of XR-E compare to the 4.6V of XR-C?

A: The 0.2V reduction in forward voltage is within acceptable tolerance for neutral white LED applications. This results in lower power consumption and reduced thermal load. Existing current-limiting circuits designed for 4.6V will operate safely with 3.3V parts.

Q: Are all substitute parts RoHS compliant?

A: Yes. All XLamp® XR-E substitute parts listed carry RoHS Compliant status and REACH Unaffected designation, meeting regulatory requirements for EU and global markets.

Q: Can I select a different color temperature substitute?

A: Yes. XREWHT-L1-0000-00AE4 (4500K), XREWHT-L1-0000-00AE5 (4000K), and XREWHT-L1-0000-00AF5 (4300K) are valid substitutes if your application permits color temperature variation. All maintain identical luminous flux (91lm), CRI (75), and mechanical specifications.

Q: What is the inventory status of substitute parts?

A: All XLamp® XR-E substitutes are active products with current inventory availability ranging from 820 to 1111 pieces, ensuring supply chain continuity.

Q: Does the improved thermal resistance of XR-E affect circuit design?

A: The 8°C/W thermal resistance of XR-E versus 12°C/W for XR-C represents improved thermal performance. Existing thermal designs will operate with lower junction temperatures, extending component life and improving reliability margins.