XRCWHT-L1-0000-003B1 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-003B1 is a CreeLED XLamp® XR-C neutral white LED in 3529 surface mount package. This part is classified as obsolete, necessitating identification of active equivalent components for new designs and production continuity. The XR-C series has been superseded by newer XLamp® generations, requiring substitution analysis based on electrical and mechanical compatibility within the 3529 package form factor.

Substiute Parts

XRCWHT-L1-0000-003B1

CreeLED, Inc.In Stock: 1076XRCWHT-L1-0000-003B1 Datasheet

Current PartRFQ

XREWHT-L1-0000-006E5

CreeLED, Inc.In Stock: 2150XREWHT-L1-0000-006E5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XRCWHT-L1-0000-003B1 is determined by the following critical parameters:

Mechanical Compatibility: Package type (3529), mounting type (surface mount), and physical dimensions (0.354" L x 0.276" W, 4.60mm max height) must remain identical to ensure PCB layout compatibility without redesign.

Electrical Compatibility: Forward voltage (Vf), test current (350mA), and maximum current rating must be within acceptable operating ranges for the existing circuit design. Viewing angle (90°) must match the optical requirements.

Compliance & Status: RoHS compliance and REACH status must be maintained. Active product status is preferred for long-term supply assurance.

The XREWHT-L1-0000-006E5 qualifies as a direct substitute based on identical package, mounting type, dimensions, viewing angle, and compliance certifications, while offering improved performance characteristics within the same electrical operating envelope.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-006E5 is the qualified substitute for the obsolete XRCWHT-L1-0000-003B1. Selection is based on:

Mechanical Fit: Identical 3529 package dimensions and surface mount configuration ensure direct PCB compatibility without layout modification.

Electrical Compatibility: The substitute operates at 3.3V typical forward voltage versus 4.6V for the main part. This 0.2V difference is within typical circuit tolerance margins for LED driver designs. Both parts operate at 350mA test current with compatible maximum current ratings (500mA vs. 700mA).

Performance Enhancement: The substitute delivers 65lm at 350mA versus 49lm for the main part, representing a 33% luminous flux improvement at identical test current. Efficiency increases from 40 lm/W to 56 lm/W.

Thermal Advantage: Thermal resistance improves from 12°C/W to 8°C/W, providing better heat dissipation characteristics.

Compliance Assurance: Both parts maintain RoHS compliance, REACH unaffected status, and identical MSL rating (4, 72 Hours), ensuring regulatory and handling requirements remain unchanged.

Supply Continuity: The substitute is active product status with confirmed inventory availability (2132 pcs), versus obsolete status for the main part.

Frequently Asked Questions (FAQ)

Q: Can the XREWHT-L1-0000-006E5 be used as a direct drop-in replacement for the XRCWHT-L1-0000-003B1?

A: Yes. Both parts share identical package type (3529), mounting configuration (surface mount), and physical dimensions (0.354" L x 0.276" W, 4.60mm height). No PCB redesign is required. The 0.2V forward voltage difference (3.3V vs. 4.6V) is within standard LED driver tolerance.

Q: What is the impact of the forward voltage difference on circuit operation?

A: The substitute operates at 3.3V typical versus 4.6V for the main part. Modern LED drivers accommodate this variation through current regulation. Verify your specific driver design supports the 3.3V to 4.6V range. If your circuit is voltage-sensitive, consult the driver datasheet for acceptable Vf tolerance.

Q: Does the higher luminous flux of the substitute affect brightness uniformity in the application?

A: The substitute produces 65lm versus 49lm at 350mA test current. If brightness consistency is critical in multi-LED arrays, all LEDs should be sourced from the same production lot. The substitute's improved efficiency (56 lm/W vs. 40 lm/W) may require optical design review if the application has specific brightness targets.

Q: Are the handling and storage requirements identical?

A: Yes. Both parts carry MSL rating 4 (72 Hours), requiring identical moisture control during storage and handling. No changes to component management procedures are necessary.

Q: What is the significance of the CRI rating on the substitute?

A: The substitute specifies CRI 75 (typical), while the main part does not provide CRI data. CRI 75 indicates acceptable color rendering for general lighting applications. If your application requires specific color rendering performance, verify CRI 75 meets your requirements.

Q: Can I mix the main part and substitute in the same production run?

A: Not recommended. While electrically compatible, the luminous flux difference (49lm vs. 65lm) creates visible brightness variation in multi-LED designs. Maintain consistent sourcing to one part number per production batch.