LED LH351B SPHWH2L3D30CD4TPJ3 Equivalent & Substitute Parts

Part Overview

The SPHWH2L3D30CD4TPJ3 is a surface-mount LED from Samsung Semiconductor's LH351B series, featuring neutral white 4000K color temperature in a 3535 metric package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. Organizations requiring this LED for ongoing production, maintenance, or legacy system support must identify functionally equivalent alternatives that maintain electrical and mechanical compatibility with existing designs.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Color Temperature (CCT)	4000K	Kelvin	Critical - defines color appearance
Forward Voltage (Vf)	2.8V	Volts	Critical - affects circuit design
Test Current	350mA	Milliamps	Critical - standard operating point
Luminous Flux @ 85°C	135lm	Lumens	Important - brightness specification
Viewing Angle	120°	Degrees	Important - light distribution
Package Type	3535 Metric (1414)	-	Critical - PCB footprint compatibility
Maximum Current	1.5A	Amperes	Important - thermal limits
Thermal Resistance	4°C/W	°C/W	Important - heat dissipation
CRI (Color Rendering Index)	70	-	Important - color accuracy
RoHS Compliance	Compliant	-	Critical - regulatory requirement

Substitute Part Grouping Explanation

Substitution of the SPHWH2L3D30CD4TPJ3 is determined by strict alignment of the following parameters:

Mandatory Matching Criteria:

Color Temperature: 4000K (neutral white)
Package Type: 3535 Metric (1414) for PCB footprint compatibility
Test Current: 350mA nominal operation
Forward Voltage: Within acceptable circuit design tolerance (2.72V–2.8V range)
Viewing Angle: 115°–120° for equivalent light distribution
CRI: 70 or higher for color rendering consistency
RoHS Compliance: Required for regulatory alignment

Acceptable Variation Ranges:

Luminous Flux: ±10% variance acceptable (120lm–150lm range)
Maximum Current: 1.5A or higher
Thermal Resistance: 4°C/W or lower
Physical Dimensions: ±0.005" tolerance on length/width; height variation acceptable if mounting compatibility maintained

The XPGBWT-01-0000-00HE5 from CreeLED meets all mandatory criteria and falls within acceptable variation ranges for luminous flux and electrical parameters.

Parameter Comparison

Parameter	SPHWH2L3D30CD4TPJ3 (Samsung)	XPGBWT-01-0000-00HE5 (CreeLED)	Compatibility Status
Manufacturer	Samsung Semiconductor, Inc.	CreeLED, Inc.	Different manufacturer
Series	LH351B	XLamp® XP-G2	Different series
Color Temperature	4000K	4000K	Match
Forward Voltage (Vf)	2.8V	2.72V	Compatible (0.08V difference)
Test Current	350mA	350mA	Match
Luminous Flux @ 85°C	135lm (120–150lm range)	144lm (139–148lm range)	Compatible (within tolerance)
Lumens/Watt	138 lm/W	152 lm/W	Compatible (higher efficiency)
CRI	70	70 (Typ)	Match
Maximum Current	1.5A	1.5A	Match
Viewing Angle	120°	115°	Compatible (5° difference)
Package Type	3535 Metric (1414)	3535 Metric (1414)	Match
Physical Dimensions (L×W)	3.50mm × 3.50mm	3.45mm × 3.45mm	Compatible (0.05mm difference)
Height - Seated (Max)	2.06mm	2.39mm	Compatible (0.33mm difference)
Thermal Resistance	4°C/W	4°C/W	Match
RoHS Status	Compliant	Compliant	Match
Product Status	Not For New Designs	Active	Substitute is active

Engineering Selection Recommendations

Primary Substitute: XPGBWT-01-0000-00HE5 (CreeLED XLamp® XP-G2)

The XPGBWT-01-0000-00HE5 is the qualified equivalent for SPHWH2L3D30CD4TPJ3 replacement based on the following engineering factors:

Electrical Compatibility: The forward voltage difference of 0.08V (2.72V vs. 2.8V) is within acceptable circuit design tolerance for constant-current LED drivers. This minor variance does not require circuit redesign for standard applications operating at 350mA.

Optical Compatibility: Both components deliver 4000K neutral white light with CRI 70. The luminous flux of 144lm from the CreeLED part exceeds the Samsung specification minimum (120lm) and falls within the Samsung tolerance band (120–150lm). The 5° viewing angle difference (115° vs. 120°) is negligible for most lighting applications.

Mechanical Compatibility: The 3535 metric package footprint is identical. Physical dimension differences (0.05mm on length/width, 0.33mm on height) are within standard PCB assembly tolerances and do not affect mounting or thermal performance.

Regulatory & Compliance: Both components are RoHS Compliant and carry identical ECCN (EAR99) and HTSUS classifications. The CreeLED part includes REACH Unaffected status, providing additional regulatory clarity.

Product Status Advantage: The CreeLED XLamp® XP-G2 series maintains Active product status, ensuring long-term availability and supply chain stability compared to the Samsung LH351B "Not For New Designs" classification.

Thermal Performance: Identical thermal resistance (4°C/W) ensures equivalent heat dissipation characteristics in existing thermal designs.

Frequently Asked Questions (FAQ)

Q: Can the XPGBWT-01-0000-00HE5 be used as a direct drop-in replacement for SPHWH2L3D30CD4TPJ3?

A: Yes. Both components share identical 3535 metric package footprints, matching test current (350mA), color temperature (4000K), and thermal resistance (4°C/W). The 0.08V forward voltage difference and 5° viewing angle variance are within acceptable engineering tolerances for standard lighting applications and do not require circuit modification.

Q: What is the impact of the 0.08V forward voltage difference?

A: For constant-current LED drivers (the standard topology for 350mA operation), this difference is negligible. Constant-current sources maintain the specified current regardless of forward voltage within their compliance range. For constant-voltage applications, verify the driver's voltage regulation capability; most designs accommodate ±0.1V variation without performance degradation.

Q: Are there any thermal design considerations when substituting?

A: No. Both components specify 4°C/W thermal resistance. Existing thermal management designs (heatsinks, thermal vias, PCB copper area) require no modification. The CreeLED part's slightly higher height (2.39mm vs. 2.06mm) does not affect thermal performance and remains within standard assembly clearances.

Q: Does the higher luminous flux (144lm vs. 135lm) affect circuit operation?

A: No. The CreeLED part operates at identical test current (350mA) and forward voltage (2.72V). The increased flux represents improved efficiency (152 lm/W vs. 138 lm/W) and does not alter electrical circuit behavior. Applications requiring specific brightness levels should verify the 144lm output meets or exceeds design requirements.

Q: What is the significance of the 5° viewing angle difference?

A: The CreeLED part has a 115° viewing angle versus 120° for the Samsung part. This 5° difference is negligible for most lighting applications. For applications requiring precise light distribution (e.g., narrow-beam spotlights), measure the actual beam pattern to confirm suitability. For general illumination, this difference is imperceptible.

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

A: Yes. The XPGBWT-01-0000-00HE5 is supplied in Tape & Reel (TR) packaging, matching the Samsung part's packaging format. Current inventory shows 1,743 pieces available, providing supply security for production requirements.

Q: Are there any compliance or certification differences?

A: Both parts are RoHS Compliant with identical ECCN (EAR99) and HTSUS classifications. The CreeLED part includes REACH Unaffected status, which provides additional regulatory documentation. No compliance barriers exist for substitution.

Q: Can I use the XPGBWT-01-0000-00HE5 in new designs?

A: Yes. The CreeLED XLamp® XP-G2 series maintains Active product status, making it suitable for new designs. The Samsung LH351B is classified "Not For New Designs," making the CreeLED substitute the preferred choice for ongoing and future production.

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