LED LM231A WARM WHT 3000K 2323 (SPMWHT221MD5WAVHS0)

Part Overview

The Samsung Semiconductor LM231A warm white LED (SPMWHT221MD5WAVHS0) is a surface-mount light-emitting diode designed for general illumination applications requiring 3000K color temperature. This component operates at 2.86V forward voltage with a 65mA test current, delivering 25 lumens at 25°C with a 120° viewing angle in a compact 0909 (2323 metric) package.

The LM231A series is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this LED specification.

Key Parameters

Parameter	Value	Unit
Color	White, Warm	—
Correlated Color Temperature (CCT)	3000K	K
Flux @ 25°C, Test Current	25 lm (20–30 lm range)	lm
Test Current	65 mA	mA
Forward Voltage (Vf) Typical	2.86 V	V
Lumens per Watt @ Test Current	134 lm/W	lm/W
Color Rendering Index (CRI)	80	—
Maximum Current	150 mA	mA
Viewing Angle	120°	°
Package / Case	0909 (2323 Metric)	—
Mounting Type	Surface Mount	—
Thermal Resistance	20°C/W	°C/W
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	—

Substitute Part Grouping Explanation

Substitution of the Samsung LM231A LED is determined by alignment of the following critical parameters:

Color and Spectral Properties: The substitute part must operate at 3000K correlated color temperature with warm white color classification to maintain consistent color appearance in the application.

Luminous Flux: The substitute must deliver approximately 25 lumens at the 65mA test current, with acceptable tolerance range of 20–30 lumens to ensure comparable brightness output.

Electrical Characteristics: Forward voltage and test current must be compatible with existing circuit designs. The substitute forward voltage of 2.9V is within acceptable tolerance of the original 2.86V specification.

Color Rendering Index (CRI): A CRI value of 80 is required to maintain color fidelity equivalent to the original component.

Thermal Properties: Thermal resistance of 20°C/W ensures equivalent thermal performance in the application environment.

Compliance and Regulatory Status: Both the original and substitute parts must maintain RoHS compliance and REACH unaffected status to satisfy regulatory requirements.

Package Considerations: While the substitute part uses a larger 1212 (3030 metric) package compared to the original 0909 (2323 metric) package, this represents a physical size increase that may require PCB layout modification. The substitute is not a direct mechanical replacement without design revision.

Parameter Comparison

Parameter	SPMWHT221MD5WAVHS0 (Samsung LM231A)	XHGAWT-00-0000-00000HWE7 (CreeLED XLamp® XH-G)	Compatibility Notes
Manufacturer	Samsung Semiconductor, Inc.	CreeLED, Inc.	Different manufacturers
Series	LM231A	XLamp® XH-G	Different product lines
Product Status	Obsolete	Active	Substitute is in active production
Color	White, Warm	White, Warm	Matched
CCT (K)	3000K	3000K	Matched
Flux @ 25°C, Test Current	25 lm (20–30 lm)	25 lm (24–27 lm)	Equivalent; substitute range is tighter
Test Current	65 mA	65 mA	Matched
Forward Voltage (Vf) Typical	2.86 V	2.9 V	Within acceptable tolerance
Lumens/Watt @ Test Current	134 lm/W	133 lm/W	Equivalent efficiency
CRI	80	80	Matched
Maximum Current	150 mA	350 mA	Substitute supports higher current
Viewing Angle	120°	130°	Substitute has wider viewing angle
Package / Case	0909 (2323 Metric)	1212 (3030 Metric)	Different package sizes; PCB layout modification required
Size / Dimension	0.091" L × 0.091" W (2.30 mm × 2.30 mm)	0.118" L × 0.118" W (3.00 mm × 3.00 mm)	Substitute is larger
Height - Seated (Max)	0.031" (0.80 mm)	0.072" (1.83 mm)	Substitute is taller
Thermal Resistance	20°C/W	20°C/W	Matched
Mounting Type	Surface Mount	Surface Mount	Matched
RoHS Status	RoHS Compliant	RoHS Compliant	Matched
REACH Status	REACH Unaffected	REACH Unaffected	Matched
Packaging	—	Tape & Reel (TR)	Substitute supplied in tape and reel format

Engineering Selection Recommendations

The CreeLED XLamp® XH-G LED (XHGAWT-00-0000-00000HWE7) is an electrical and functional substitute for the obsolete Samsung LM231A. Both components share identical color temperature (3000K), color rendering index (80), test current (65mA), thermal resistance (20°C/W), and luminous flux output (25 lumens at 25°C). Forward voltage differs by 0.04V (2.9V versus 2.86V), which is within acceptable tolerance for most circuit designs.

The substitute part is currently in active production status, ensuring long-term supply availability compared to the obsolete LM231A. Both components maintain RoHS compliance and REACH unaffected regulatory status.

A critical design consideration is the package size difference. The substitute uses a 1212 (3030 metric) package measuring 3.00mm × 3.00mm with a maximum seated height of 1.83mm, compared to the original 0909 (2323 metric) package measuring 2.30mm × 2.30mm with a maximum seated height of 0.80mm. This represents a significant physical size increase that requires PCB layout modification, including footprint redesign and potential clearance adjustments for surrounding components.

The substitute part supports a maximum current of 350mA, compared to the original 150mA maximum, providing additional design margin for current-limited applications. The viewing angle increases from 120° to 130°, which may affect optical performance in applications requiring specific beam characteristics.

Frequently Asked Questions (FAQ)

Q: Can the CreeLED XLamp® XH-G (XHGAWT-00-0000-00000HWE7) be used as a direct replacement for the Samsung LM231A (SPMWHT221MD5WAVHS0) without PCB modification?

A: No. While the parts are electrically and functionally equivalent, the package sizes differ significantly. The substitute uses a 1212 (3030 metric) package versus the original 0909 (2323 metric) package. Direct substitution requires PCB footprint redesign and layout modification.

Q: Are the color characteristics identical between these two LEDs?

A: Yes. Both components operate at 3000K correlated color temperature with a color rendering index of 80, ensuring equivalent warm white color appearance and color fidelity in the application.

Q: What is the forward voltage difference, and does it affect circuit design?

A: The substitute forward voltage is 2.9V compared to the original 2.86V, a difference of 0.04V. This difference is within acceptable tolerance for most LED circuit designs and does not require circuit redesign in typical current-limited applications.

Q: Does the substitute part have better thermal performance?

A: Both components have identical thermal resistance of 20°C/W. Thermal performance is equivalent between the two parts.

Q: Why is the substitute part larger, and what are the implications?

A: The CreeLED XLamp® XH-G uses a larger 1212 (3030 metric) package to accommodate higher maximum current capability (350mA versus 150mA) and improved thermal dissipation. The larger package requires PCB layout modification but provides additional design flexibility for future current increases.

Q: Is the substitute part available in the same packaging format?

A: The substitute is supplied in Tape & Reel (TR) format, which is standard for high-volume production. The original part packaging format is not specified in the available data.

Q: Can the substitute part be used in applications requiring the original 120° viewing angle?

A: The substitute has a 130° viewing angle, which is wider than the original 120°. In applications where a narrower beam angle is critical, this difference may affect optical performance and should be evaluated for the specific application.

Q: What is the inventory status of these parts?

A: The original Samsung LM231A has 932 pieces in stock as new original inventory. The CreeLED substitute has 824 pieces in stock. Both are currently available, though the substitute is in active production status while the original is obsolete.

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