XRCWHT-L1-0000-008E4 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-008E4 is a CreeLED XLamp® XR-C neutral white LED (4500K) in 3529 surface mount package, rated for 350mA operation at 4.6V forward voltage with 90° viewing angle. This part is classified as obsolete. Equivalent substitute parts from the active XLamp® XR-E series are available to maintain design continuity and ensure ongoing component availability for production and maintenance applications.

Substiute Parts

XRCWHT-L1-0000-008E4

CreeLED, Inc.In Stock: 1085XRCWHT-L1-0000-008E4 Datasheet

Current PartRFQ

XREWHT-L1-0000-008E4

CreeLED, Inc.In Stock: 1106XREWHT-L1-0000-008E4 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-0000-008E5

CreeLED, Inc.In Stock: 1264XREWHT-L1-0000-008E5 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-0000-008F5

CreeLED, Inc.In Stock: 727XREWHT-L1-0000-008F5 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-R250-008E4

CreeLED, Inc.In Stock: 796XREWHT-L1-R250-008E4 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-R250-008E5

CreeLED, Inc.In Stock: 840XREWHT-L1-R250-008E5 Datasheet

Parametric EquivalentRFQ

XREWHT-L1-R250-008F5

CreeLED, Inc.In Stock: 1099XREWHT-L1-R250-008F5 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete XRCWHT-L1-0000-008E4 is determined by the following critical parameters:

Mechanical Compatibility:

• Package type: 3529 (9073 Metric) surface mount
• Physical dimensions: 0.354" L x 0.276" W (9.00mm x 7.00mm)
• Height - Seated (Max): 0.181" (4.60mm)
• Mounting type: Surface Mount

Optical & Electrical Compatibility:

• Color: White, Neutral
• CCT (K): 4500K (primary match) or adjacent CCT values (4000K, 4300K) for neutral white applications
• Flux @ 25°C, 350mA: 77lm (74lm ~ 81lm) range
• Current - Test: 350mA
• Viewing Angle: 90°
• CRI (Color Rendering Index): 75 (Typ)

Regulatory & Environmental Compliance:

• RoHS Compliant
• REACH Unaffected
• Moisture Sensitivity Level (MSL): 4 (72 Hours)

All substitute parts listed are from the active XLamp® XR-E series, which maintains identical mechanical form factor, optical output specifications, and regulatory compliance while offering improved electrical efficiency and higher maximum current ratings.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Exact CCT Match): XREWHT-L1-0000-008E4 and XREWHT-L1-R250-008E4 are direct functional equivalents for the XRCWHT-L1-0000-008E4, maintaining 4500K CCT specification. Both parts are active products with RoHS compliance and REACH unaffected status. The primary difference is packaging format: standard Tape & Reel (TR) versus R250 reel configuration. Selection between these two depends on assembly line reel handling requirements.

Secondary Substitutes (Adjacent CCT Range): XREWHT-L1-0000-008E5, XREWHT-L1-R250-008E5 (4000K) and XREWHT-L1-0000-008F5, XREWHT-L1-R250-008F5 (4300K) are suitable for applications where neutral white CCT tolerance permits operation within the 4000K to 4500K range. All substitute parts maintain identical optical flux output (77lm at 350mA), viewing angle (90°), and CRI (75 Typ).

Electrical Considerations: XLamp® XR-E substitutes operate at 3.3V forward voltage compared to the 4.6V of the XR-C series. Circuit designs must accommodate this 0.2V reduction. XR-E parts support higher maximum current (700mA vs. 500mA), providing design margin for future performance optimization. Thermal resistance improvement (8°C/W vs. 12°C/W) reduces junction temperature rise under identical operating conditions.

Compliance & Availability: All substitute parts maintain RoHS compliance, REACH unaffected status, and MSL 4 (72 Hours) moisture sensitivity rating. Active product status ensures long-term availability and supply chain continuity compared to the obsolete XR-C series.

Frequently Asked Questions (FAQ)

Q: Can XREWHT-L1-0000-008E5 (4000K) be used as a direct replacement for XRCWHT-L1-0000-008E4 (4500K)?

A: XREWHT-L1-0000-008E5 is mechanically and electrically compatible but operates at 4000K CCT versus the original 4500K specification. Substitution is valid only if the application design permits neutral white operation within the 4000K to 4500K range. Optical flux output remains identical at 77lm.

Q: What is the difference between XREWHT-L1-0000-008E4 and XREWHT-L1-R250-008E4?

A: Both parts are electrically and optically identical. The difference is packaging format: XREWHT-L1-0000-008E4 uses standard Tape & Reel (TR) packaging, while XREWHT-L1-R250-008E4 uses R250 reel configuration. Selection depends on assembly equipment compatibility and reel handling specifications.

Q: Why is the forward voltage different between the XR-C and XR-E series?

A: The XLamp® XR-E series operates at 3.3V typical forward voltage compared to 4.6V for the XR-C series. This 0.2V difference reflects improved LED junction design in the newer XR-E generation. Circuit current-limiting resistors or driver circuits must be adjusted accordingly to maintain 350mA test current.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts (XREWHT series) maintain RoHS compliance and REACH unaffected status, matching the regulatory requirements of the original XRCWHT-L1-0000-008E4.

Q: What is the thermal advantage of XR-E substitutes?

A: XLamp® XR-E parts feature 8°C/W thermal resistance compared to 12°C/W for the XR-C series. Under identical operating conditions and ambient temperature, XR-E substitutes operate at lower junction temperature, extending LED lifetime and improving color stability.

Q: Can I mix different CCT variants in the same assembly?

A: Mixing 4000K, 4300K, and 4500K variants in a single assembly is not recommended if uniform color appearance is required. Each CCT variant maintains identical flux output (77lm) but produces visually distinct color temperatures. Application-specific color uniformity requirements determine whether CCT mixing is acceptable.

Q: What is MSL 4 (72 Hours) moisture sensitivity?

A: MSL 4 indicates the component requires dry storage and has a 72-hour floor life after moisture exposure. Upon removal from moisture-barrier packaging, the part must be soldered within 72 hours or returned to dry storage. All listed parts share this MSL rating.