XRCWHT-L1-0000-003A2 Equivalent & Substitute Parts

Part Overview

The XRCWHT-L1-0000-003A2 is an XLamp® XR-C series neutral white LED (4750K) designed for surface mount applications in the 3529 (9073 Metric) package. This component operates at 4.6V forward voltage with a 350mA test current, delivering 49lm at 25°C and 40 lm/W efficiency. The product is currently obsolete, necessitating identification of functionally equivalent alternatives to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

XRCWHT-L1-0000-003A2

CreeLED, Inc.In Stock: 909XRCWHT-L1-0000-003A2 Datasheet

Current PartRFQ

XREWHT-L1-0000-005F4

CreeLED, Inc.In Stock: 818XREWHT-L1-0000-005F4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XRCWHT-L1-0000-003A2 is determined by the following critical parameters:

• Color and CCT Match: Neutral white at 4750K
• Package Compatibility: 3529 (9073 Metric) surface mount package with identical footprint dimensions (9.00mm x 7.00mm) and maximum seated height (4.60mm)
• Electrical Operating Range: Forward voltage and current ratings must support the original circuit design
• Compliance and Environmental: RoHS compliance and MSL rating must meet or exceed original specifications

The XREWHT-L1-0000-005F4 qualifies as a direct substitute based on matching color, CCT, package geometry, and compliance certifications. This part represents an upgrade within the same XLamp® family (XR-E series) with improved performance characteristics while maintaining mechanical and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The XREWHT-L1-0000-005F4 is the designated substitute for the obsolete XRCWHT-L1-0000-003A2. Selection is based on the following engineering criteria:

• Product Status: The substitute is active and currently in production, ensuring long-term availability and supply chain continuity.
• Compliance Alignment: Both parts maintain RoHS compliance and REACH unaffected status, meeting regulatory requirements without modification.
• Package Compatibility: Identical 3529 (9073 Metric) package dimensions and footprint allow direct PCB placement without layout redesign.
• Electrical Compatibility: The substitute operates at a lower forward voltage (3.3V vs. 4.6V) and supports higher maximum current (700mA vs. 500mA), providing design flexibility for existing circuits.
• Performance Enhancement: The XR-E series delivers 20% higher luminous flux (59lm vs. 49lm) and 27.5% improved efficiency (51 lm/W vs. 40 lm/W) at the same test current, with superior thermal characteristics (8°C/W vs. 12°C/W).

Frequently Asked Questions (FAQ)

Q: Can the XREWHT-L1-0000-005F4 be used as a direct replacement in existing designs?

A: Yes. Both parts share identical package geometry (3529 / 9073 Metric), footprint dimensions (9.00mm x 7.00mm), and seated height (4.60mm). The substitute operates at a lower forward voltage (3.3V vs. 4.6V), which may reduce circuit power consumption. Verify that your current-limiting circuit accommodates the voltage difference.

Q: What are the key differences between the XR-C and XR-E series?

A: The XR-E series (XREWHT-L1-0000-005F4) provides higher luminous flux output (59lm vs. 49lm), improved efficiency (51 lm/W vs. 40 lm/W), and better thermal performance (8°C/W vs. 12°C/W). Both maintain the same color temperature (4750K) and package form factor.

Q: Are there any compliance or environmental concerns with substitution?

A: No. Both parts are RoHS compliant, REACH unaffected, and carry identical MSL ratings (4 / 72 Hours). No design or procurement modifications are required from a regulatory standpoint.

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

A: The substitute operates at 3.3V versus the original 4.6V. In constant-current driver circuits, this 0.2V reduction will decrease power dissipation in the LED. In series resistor designs, recalculation of the resistor value may be necessary to maintain the desired 350mA test current.

Q: Can the substitute handle higher current levels than the original part?

A: Yes. The XREWHT-L1-0000-005F4 supports a maximum current of 700mA compared to 500mA for the XRCWHT-L1-0000-003A2. However, operation at elevated currents should be evaluated based on thermal management and application requirements.