LED LH351B COOL WHITE 5700K 3535 (SPHWH2L3D30CD4QTM3) - Equivalent & Substitute Parts

Part Overview

The SPHWH2L3D30CD4QTM3 is a surface-mount LED from Samsung Semiconductor's LH351B series, specified for cool white lighting applications at 5700K color temperature. This component delivers 155 lm at 85°C under 350mA test current with a forward voltage of 2.8V and 120° viewing angle in a 3535 metric package footprint.

The product carries a "Not For New Designs" status, indicating Samsung has discontinued active development for this series. This status necessitates identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for existing applications or redesigns requiring equivalent performance characteristics.

Substiute Parts

SPHWH2L3D30CD4QTM3

Samsung Semiconductor, Inc.In Stock: 10022SPHWH2L3D30CD4QTM3 Datasheet

Current PartRFQ

XPGBWT-L1-0000-00KE2

CreeLED, Inc.In Stock: 850XPGBWT-L1-0000-00KE2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPHWH2L3D30CD4QTM3 is determined by strict alignment across the following critical parameters:

Mandatory Matching Criteria:

• Color specification: White, Cool white at 5700K ±tolerance
• Package footprint: 1414 (3535 Metric) surface-mount configuration
• Forward voltage range: Compatible with 2.8V nominal (tolerance band 2.72V–2.88V acceptable for circuit operation)
• Test current baseline: 350mA operational point
• Mounting type: Surface Mount

Compatible Performance Range:

• Luminous flux: 140 lm minimum (per SPHWH2L3D30CD4QTM3 specification range 140–170 lm)
• Viewing angle: 115° to 120° (minor optical distribution variation acceptable)
• Maximum current rating: 1.5A or higher
• Thermal resistance: 4°C/W (matching thermal characteristics)
• CRI: 70 or higher (color rendering index)

The identified substitute XPGBWT-L1-0000-00KE2 (CreeLED XLamp® XP-G2) meets all mandatory criteria and operates within the compatible performance range, enabling direct functional substitution in applications designed for the SPHWH2L3D30CD4QTM3.

Parameter Comparison

Engineering Selection Recommendations

For Existing Designs Using SPHWH2L3D30CD4QTM3:

The XPGBWT-L1-0000-00KE2 (CreeLED XLamp® XP-G2) is a direct functional substitute. The Samsung LH351B carries "Not For New Designs" status, indicating end-of-life trajectory. The CreeLED alternative maintains active product status, ensuring long-term supply chain stability and continued manufacturer support.

Electrical Compatibility: The forward voltage differential (2.8V vs. 2.72V, −2.9% variance) falls within typical circuit tolerance margins for LED driver designs. Both components operate at identical 350mA test current and share 1.5A maximum current ratings. Circuit redesign is not required for voltage substitution.

Optical Performance: Luminous flux output (160 lm vs. 155 lm) represents a +3.2% improvement. The viewing angle variance (115° vs. 120°, −4.2%) produces minor optical distribution differences acceptable for most lighting applications. CRI remains constant at 70, preserving color rendering characteristics.

Mechanical Compatibility: Both components use identical 1414 (3535 Metric) surface-mount packages. Dimensional variance (3.45mm vs. 3.50mm footprint, −1.4%; 2.39mm vs. 2.06mm height, +16%) remains within PCB assembly tolerances for standard reflow processes. No mechanical redesign required.

Compliance & Certification: Both components meet RoHS compliance requirements and share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. Thermal resistance (4°C/W) is matched, ensuring equivalent thermal management performance.

Supply Chain Consideration: Current inventory: SPHWH2L3D30CD4QTM3 (9,985 pcs available); XPGBWT-L1-0000-00KE2 (762 pcs available). The substitute carries active product status, supporting long-term procurement planning.

Frequently Asked Questions (FAQ)

Q: Can the XPGBWT-L1-0000-00KE2 be used as a direct replacement without circuit modification?

A: Yes. The forward voltage difference (2.8V to 2.72V) is within standard LED driver tolerance. Both components operate at 350mA test current and share identical maximum current ratings (1.5A). No circuit redesign is required for electrical substitution.

Q: What is the impact of the viewing angle difference (120° vs. 115°)?

A: The 5° reduction in viewing angle produces a minor optical distribution change. For applications requiring precise beam geometry, optical performance should be validated in the target application. For general illumination, this variance is typically acceptable.

Q: Are the package dimensions compatible with existing PCB layouts?

A: Yes. Both components use the 1414 (3535 Metric) surface-mount package. Footprint variance (3.50mm vs. 3.45mm, −1.4%) and height variance (2.06mm vs. 2.39mm, +16%) remain within standard PCB assembly tolerances. Existing PCB layouts require no modification.

Q: Does the luminous flux increase (155 lm to 160 lm) affect circuit operation?

A: No. The +3.2% flux increase reflects improved LED efficiency (158 lm/W to 168 lm/W) at identical operating current. Circuit operation remains unchanged; brightness output increases slightly.

Q: What is the significance of the "Not For New Designs" status on the Samsung part?

A: This status indicates Samsung has discontinued active development and is transitioning the LH351B series toward end-of-life. Existing inventory remains available, but long-term supply cannot be guaranteed. The CreeLED substitute carries "Active" status, ensuring continued availability and manufacturer support.

Q: Are RoHS and export compliance requirements met by the substitute?

A: Yes. The XPGBWT-L1-0000-00KE2 is RoHS Compliant and carries identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications as the original part. No compliance changes result from substitution.

Q: How does thermal resistance compare between the two components?

A: Thermal resistance is identical at 4°C/W for both components. Thermal management performance and heat dissipation characteristics remain unchanged during substitution.

Q: Can the substitute be used in high-volume production?

A: Yes. The XPGBWT-L1-0000-00KE2 is available in Tape & Reel (TR) packaging suitable for automated assembly. Current inventory (762 pcs) supports production planning. Long-term availability is supported by active product status.