LED LH351B SPHWH2L3D30CD4UPK3 Equivalent & Substitute Parts

Part Overview

The SPHWH2L3D30CD4UPK3 is a Samsung Semiconductor LH351B series warm white LED designed for surface mount lighting applications. This component operates at 3500K color temperature with a forward voltage of 2.8V and rated current of 350mA, delivering 145lm at 85°C. The product is classified as "Not For New Designs," indicating that Samsung has discontinued active development for this model line. Engineers and procurement teams requiring equivalent functionality must identify substitute components that maintain electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

SPHWH2L3D30CD4UPK3

Samsung Semiconductor, Inc.In Stock: 975SPHWH2L3D30CD4UPK3 Datasheet

Current PartRFQ

XPGBWT-01-0000-00JE6

CreeLED, Inc.In Stock: 853XPGBWT-01-0000-00JE6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPHWH2L3D30CD4UPK3 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Color temperature: 3500K warm white
• Package form factor: 1414 (3535 Metric) surface mount
• Forward voltage range: Compatible with 2.8V ±tolerance
• Test current: 350mA nominal operation
• Maximum current rating: ≥1.5A
• CRI: 70 or higher
• Viewing angle: 115° to 120°
• Thermal resistance: 4°C/W
• RoHS compliance: Required

The CreeLED XLamp® XP-G2 series component XPGBWT-01-0000-00JE6 meets all substitution criteria within the allowed parameter envelope. Both components share identical package dimensions, thermal characteristics, and electrical operating points within acceptable tolerances.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: XPGBWT-01-0000-00JE6 (CreeLED XLamp® XP-G2)

The CreeLED XLamp® XP-G2 component is the qualified substitute for the discontinued Samsung LH351B. Selection is based on the following engineering criteria:

1. Product Status: The XP-G2 series maintains Active product status, ensuring continued availability and supply chain stability. The Samsung LH351B is classified as "Not For New Designs," making substitution necessary for ongoing production.

2. Electrical Compatibility: Forward voltage differential of 0.08V (2.72V vs. 2.8V) is within acceptable circuit tolerance for constant-current LED driver applications. Both components operate at identical 350mA test current and 1.5A maximum current ratings.

3. Optical Performance: The XP-G2 delivers 152lm at 85°C, exceeding the LH351B specification of 145lm. Luminous efficacy of 160 lm/W represents a 12 lm/W improvement over the original 148 lm/W, providing enhanced energy efficiency.

4. Mechanical Compatibility: Package form factor, thermal resistance, and mounting type are identical. Dimensional variance (0.05mm in lateral dimensions, 0.33mm in height) is within standard PCB assembly tolerances and does not affect reflow soldering or thermal performance.

5. Regulatory Compliance: Both components are RoHS Compliant and carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, ensuring regulatory equivalence for export and procurement documentation.

6. Color and CRI Specifications: Both components deliver 3500K warm white light with CRI of 70, maintaining identical color rendering characteristics for lighting applications.

Frequently Asked Questions (FAQ)

Q: Can the XPGBWT-01-0000-00JE6 be used as a direct drop-in replacement for SPHWH2L3D30CD4UPK3?

A: Yes. Both components share identical package form factor (1414/3535 Metric), thermal resistance (4°C/W), and electrical operating points (350mA test current, 1.5A maximum). The 0.08V forward voltage difference is accommodated by standard LED driver circuits using constant-current regulation. PCB footprints and reflow profiles are compatible.

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

A: In constant-current driver applications, forward voltage variance of this magnitude does not affect circuit operation. The driver regulates current independently of voltage drop across the LED. In series-connected applications, the cumulative voltage difference across multiple LEDs must be verified against power supply headroom, but individual component substitution does not introduce functional incompatibility.

Q: Are there viewing angle differences that affect optical performance?

A: The XP-G2 features a 115° viewing angle compared to the LH351B's 120°. This 5° difference represents a minor reduction in lateral light distribution. For applications requiring specific beam geometry, optical simulation or prototype testing may be warranted. For general illumination applications with diffusers or secondary optics, this difference is negligible.

Q: How do the luminous flux specifications compare?

A: The XP-G2 delivers 152lm at 85°C versus 145lm for the LH351B, representing a 4.8% increase in light output. This improvement results from higher luminous efficacy (160 lm/W vs. 148 lm/W). For applications with fixed brightness targets, the XP-G2 may allow reduced drive current or improved thermal margin.

Q: Are there supply chain or lead time considerations?

A: The XP-G2 series maintains Active product status with established distribution channels. The LH351B is classified as "Not For New Designs," indicating Samsung has transitioned away from this product line. Substitution ensures long-term component availability and reduces obsolescence risk.

Q: What is the MSL (Moisture Sensitivity Level) rating for the substitute?

A: The input data specifies MSL 2A (4 Weeks) for the Samsung LH351B. The CreeLED XP-G2 MSL rating is not provided in the available parameters. Procurement teams must obtain this specification from CreeLED technical documentation or the component distributor to ensure proper storage and handling protocols align with manufacturing requirements.

Q: Can both components be used interchangeably in existing designs?

A: Yes, for designs currently using the SPHWH2L3D30CD4UPK3. The XP-G2 meets all electrical, optical, and mechanical specifications within acceptable engineering tolerances. Design verification should confirm that the minor viewing angle reduction and luminous flux increase do not conflict with specific application requirements. No circuit redesign is required.