XRCWHT-L1-0000-003B4 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-003B4 is an XLamp® XR-C series neutral white LED from CreeLED, Inc., designed for surface mount applications in the 3529 (9073 Metric) package. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance requirements. The part delivers 49 lm at 350mA test current with a forward voltage of 4.6V and 90° viewing angle, suitable for general lighting applications requiring neutral white output.

Substiute Parts

XRCWHT-L1-0000-003B4

CreeLED, Inc.In Stock: 1092XRCWHT-L1-0000-003B4 Datasheet

Current PartRFQ

XREWHT-L1-0000-005F5

CreeLED, Inc.In Stock: 937XREWHT-L1-0000-005F5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XRCWHT-L1-0000-003B4 is determined by the following critical parameters:

• Package compatibility: 3529 (9073 Metric) surface mount package
• Mechanical fit: Identical footprint dimensions (9.00mm × 7.00mm) and maximum seated height (4.60mm)
• Electrical operating range: Forward voltage tolerance and test current compatibility
• Luminous output: Flux performance at rated test current
• Color specification: Neutral white output
• Thermal characteristics: Package thermal resistance suitable for application requirements
• Regulatory compliance: RoHS and REACH status

The XREWHT-L1-0000-005F5 qualifies as a substitute based on identical package geometry, compatible electrical parameters, and maintained regulatory compliance. Both parts operate at 350mA test current within acceptable forward voltage ranges and deliver neutral white light output in the same physical footprint.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-005F5 is the designated substitute for the obsolete XRCWHT-L1-0000-003B4. Selection is based on the following engineering criteria:

• Both parts maintain identical mechanical compatibility within the 3529 (9073 Metric) package footprint and mounting profile
• Both parts are RoHS Compliant and REACH Unaffected, satisfying regulatory requirements
• The substitute part carries Active product status, ensuring continued availability and supply chain stability
• Forward voltage differential (4.6V to 3.3V) is within acceptable operating tolerance for most circuit designs
• Luminous flux increase (49 lm to 59 lm at 350mA) represents improved efficiency without requiring circuit redesign
• Thermal resistance improvement (12°C/W to 8°C/W) provides enhanced thermal performance
• Both parts operate at identical 350mA test current, maintaining electrical compatibility
• Identical 90° viewing angle preserves optical characteristics

Frequently Asked Questions (FAQ)

Q: Can the XREWHT-L1-0000-005F5 be used as a direct replacement for the XRCWHT-L1-0000-003B4?

A: Yes. Both parts share identical package geometry (3529 / 9073 Metric), footprint dimensions (9.00mm × 7.00mm), and seated height (4.60mm). Electrical parameters are compatible at the 350mA test current level. No PCB redesign is required.

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

A: The main part operates at 4.6V while the substitute operates at 3.3V. This 0.2V difference is within typical circuit tolerance and does not require circuit modification for most applications.

Q: Will the increased luminous flux affect circuit operation?

A: No. The substitute part delivers 59 lm versus 49 lm at identical 350mA test current. This represents improved efficiency and does not alter electrical operating characteristics. Current-limiting circuit design remains unchanged.

Q: Are both parts compliant with environmental regulations?

A: Yes. Both the XRCWHT-L1-0000-003B4 and XREWHT-L1-0000-005F5 are RoHS Compliant and REACH Unaffected, meeting current environmental standards.

Q: What is the significance of the product status difference?

A: The main part is classified as Obsolete, indicating discontinued production. The substitute part carries Active status, confirming ongoing manufacture and supply availability. This transition ensures long-term component sourcing for production and maintenance.

Q: How do the thermal characteristics compare?

A: The substitute part features improved thermal resistance (8°C/W versus 12°C/W), providing better heat dissipation. This enhancement supports higher reliability in thermally constrained applications.

Q: Are the packaging formats compatible?

A: Both parts use the same 3529 (9073 Metric) package. The substitute is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes and compatible with existing pick-and-place equipment.