SPHWHTL3D305E6TPJ2 LED Equivalent & Substitute Parts

Part Overview

The SPHWHTL3D305E6TPJ2 is a Samsung Semiconductor LH351A series surface-mount LED with neutral white 4000K color temperature, rated for 350mA operation at 2.95V forward voltage. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives from active product lines. The LH351A series has been discontinued, making substitute parts essential for ongoing production and maintenance applications requiring compatible 3535 package LEDs with neutral white spectral output.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Color Temperature	4000K	K	Critical - defines spectral output
Forward Voltage (Typ)	2.95V	V	Critical - circuit compatibility
Test Current	350mA	mA	Critical - operating point
Luminous Flux @ 25°C	130lm (120-140lm)	lm	Important - brightness specification
Package / Case	1414 (3535 Metric)	—	Critical - mechanical fit
Viewing Angle	125°	°	Important - optical characteristics
Maximum Current	1.5A	A	Important - thermal limits
Thermal Resistance	4°C/W	°C/W	Important - thermal management
Mounting Type	Surface Mount	—	Critical - assembly compatibility
RoHS Status	RoHS Compliant	—	Important - regulatory compliance

Substitute Part Grouping Explanation

Substitution of the SPHWHTL3D305E6TPJ2 is determined by strict alignment of the following parameters:

Critical Matching Parameters:

Package / Case: 1414 (3535 Metric) — mechanical and thermal interface
Mounting Type: Surface Mount — assembly process compatibility
Test Current: 350mA — operating point specification
Forward Voltage Range: 2.85V to 2.95V — circuit voltage compatibility

Important Matching Parameters:

Color Temperature: 4000K neutral white — spectral output requirement
Luminous Flux: minimum 120lm at test current — brightness performance
Maximum Current: 1.5A — thermal and electrical limits
Viewing Angle: 115° to 125° — optical beam characteristics

Compliance Parameters:

RoHS Compliant status — regulatory requirement
ECCN: EAR99 — export classification alignment

All CreeLED XLamp® XT-E series parts listed meet the 3535 package, 350mA test current, and 2.85V forward voltage specifications. Neutral white variants (4000K to 4750K) provide closest spectral match to the original 4000K specification.

Parameter Comparison

Parameter	SPHWHTL3D305E6TPJ2 (Main)	XTEAWT-00-0000-000000EE4	XTEAWT-00-0000-000000HF4	XTEAWT-00-0000-00000BHF4	XTEAWT-00-0000-00000HDE8
Manufacturer	Samsung Semiconductor	CreeLED	CreeLED	CreeLED	CreeLED
Series	LH351A	XLamp® XT-E	XLamp® XT-E	XLamp® XT-E	XLamp® XT-E
Color / CCT	White, Neutral / 4000K	White, Neutral / 4500K	White, Neutral / 4750K	White, Neutral / 4750K	White, Warm / 2700K
Forward Voltage (Typ)	2.95V	2.85V	2.85V	2.85V	2.85V
Test Current	350mA	350mA	350mA	350mA	350mA
Flux @ 25°C	130lm (120-140lm)	118lm (114-122lm)	144lm (139-148lm)	144lm (139-148lm)	111lm (107-114lm)
Lumens/Watt	126 lm/W	118 lm/W	144 lm/W	144 lm/W	111 lm/W
CRI	80	—	—	70	80
Maximum Current	1.5A	1.5A	1.5A	1.5A	1.5A
Viewing Angle	125°	115°	115°	115°	115°
Package / Case	1414 (3535 Metric)	1414 (3535 Metric)	1414 (3535 Metric)	1414 (3535 Metric)	1414 (3535 Metric)
Size / Dimension	3.50mm x 3.50mm	3.45mm x 3.45mm	3.45mm x 3.45mm	3.45mm x 3.45mm	3.45mm x 3.45mm
Height - Seated (Max)	2.02mm	2.54mm	2.54mm	2.54mm	2.54mm
Thermal Resistance	4°C/W	5°C/W	5°C/W	5°C/W	5°C/W
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

Primary Substitute for Neutral White 4000K Applications:

XTEAWT-00-0000-000000HF4 (CreeLED XLamp® XT-E, 4750K) and XTEAWT-00-0000-00000BHF4 (CreeLED XLamp® XT-E, 4750K) provide the closest spectral match to the original 4000K specification within the active product portfolio. Both parts are classified as Active status with full RoHS compliance and REACH unaffected designation. The 4750K color temperature represents a 750K shift from the original 4000K, placing it within acceptable neutral white range for most general illumination applications.

Alternative Neutral White Option:

XTEAWT-00-0000-000000EE4 (CreeLED XLamp® XT-E, 4500K) offers a 500K shift from the original specification, providing closer spectral alignment with slightly lower luminous flux (118 lm/W versus 126 lm/W original). This part is Active status with RoHS compliance.

Electrical and Thermal Compatibility:

All recommended substitutes operate at 2.85V forward voltage, 0.10V lower than the original 2.95V specification. This voltage differential is within typical LED circuit tolerance ranges and does not preclude direct substitution in constant-current driver applications. All substitutes maintain 1.5A maximum current rating and operate at identical 350mA test current.

Mechanical Compatibility Considerations:

CreeLED XLamp® XT-E parts measure 3.45mm x 3.45mm versus the original 3.50mm x 3.50mm, representing a 0.05mm reduction per side. Seated height increases from 2.02mm to 2.54mm, a 0.52mm difference. These dimensional variations remain within standard PCB assembly tolerances for 3535 package footprints but require verification of clearance in height-constrained applications.

Thermal Performance:

Substitute parts exhibit 5°C/W thermal resistance versus 4°C/W for the original, representing a 25% increase in thermal impedance. This difference is acceptable for 350mA operation but requires consideration in high-ambient-temperature or thermally-constrained designs.

Regulatory and Compliance Status:

All CreeLED XLamp® XT-E substitutes maintain RoHS compliance and REACH unaffected status, ensuring regulatory alignment with the original component. ECCN classification remains EAR99 for all parts.

Frequently Asked Questions (FAQ)

Q: Can XTEAWT-00-0000-000000HF4 directly replace SPHWHTL3D305E6TPJ2 in existing PCB designs?

A: Direct PCB footprint replacement is mechanically feasible. The 3535 package dimensions are compatible (3.45mm versus 3.50mm original). However, the 0.52mm increase in seated height (2.54mm versus 2.02mm) must be verified against clearance constraints. Forward voltage reduction from 2.95V to 2.85V requires circuit validation in voltage-regulated applications but is transparent in constant-current driver designs.

Q: What is the color temperature difference between the original 4000K and the 4750K substitute?

A: The 750K shift places the substitute in the upper neutral white range. For general illumination applications, this difference is typically imperceptible to human vision. Applications requiring precise color matching (photography, display backlighting) should conduct spectral comparison testing.

Q: Are all listed CreeLED substitutes available in the same packaging format?

A: No. XTEAWT-00-0000-00000BGE2 is available in Cut Tape (CT) & Digi-Reel® packaging with significantly higher inventory (1,000,000 pcs), while most other substitutes are supplied in Tape & Reel (TR) format. Packaging selection depends on procurement volume and assembly line requirements.

Q: How does the luminous flux difference affect application performance?

A: The original part delivers 130lm at 350mA (126 lm/W). XTEAWT-00-0000-000000HF4 delivers 144lm (144 lm/W), representing an 11% brightness increase. XTEAWT-00-0000-000000EE4 delivers 118lm (118 lm/W), representing a 9% brightness reduction. Flux differences are application-dependent; constant-current designs maintain specified current regardless of flux variation.

Q: What thermal management changes are required due to the 5°C/W versus 4°C/W thermal resistance?

A: The 25% increase in thermal impedance requires evaluation in thermally-constrained designs. At 350mA operation, junction temperature rise increases proportionally. Designs operating near thermal limits should incorporate enhanced thermal interface materials or increased copper area on PCB thermal pads.

Q: Can warm white variants (2700K, 2850K, 2200K) substitute for the neutral white 4000K original?

A: Mechanical and electrical compatibility exists; however, spectral output differs significantly. Warm white variants are suitable only for applications where color temperature shift is acceptable or desired. XTEAWT-00-0000-00000HDE8 (2700K) and XTEAWT-00-0000-00000HDF8 (2850K) maintain 80 CRI matching the original specification.

Q: What is the significance of CRI (Color Rendering Index) differences?

A: The original part specifies CRI 80. Most CreeLED XLamp® XT-E neutral variants do not specify CRI in provided data. XTEAWT-00-0000-00000BHF4 and XTEAWT-00-0000-00000BHE1 specify CRI 70, representing reduced color rendering capability. Applications requiring high color fidelity should prioritize parts with CRI specifications matching or exceeding the original 80 value.

Q: Is the 115° viewing angle of substitutes acceptable for applications designed for 125° original?

A: The 10° reduction in viewing angle narrows the optical beam. Applications requiring wide-angle illumination should evaluate whether 115° meets performance requirements. Optical system redesign may be necessary for applications dependent on the original 125° specification.

Q: What inventory status should influence substitute selection?

A: XTEAWT-00-0000-00000BGE2 offers 1,000,000 pcs inventory in Cut Tape format, providing long-term supply security. Other substitutes range from 694 to 1,171 pcs in Tape & Reel format. High-volume production should prioritize parts with established inventory levels and active product status.

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