LED LH351B COOL WHITE 5000K 3535 (SPHWH2L3D30CD4RTM3) - Equivalent & Substitute Parts

Part Overview

The Samsung Semiconductor SPHWH2L3D30CD4RTM3 is a surface-mount LED lighting component from the LH351B series, specified for cool white 5000K color temperature applications. This part operates at 350mA test current with a forward voltage of 2.8V and delivers 155lm at 85°C operating conditions. The component is classified as "Not For New Designs," indicating that Samsung has discontinued active development for this product line. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where LH351B specifications remain functionally appropriate.

Substiute Parts

SPHWH2L3D30CD4RTM3

Samsung Semiconductor, Inc.In Stock: 953SPHWH2L3D30CD4RTM3 Datasheet

Current PartRFQ

XPGBWT-01-0000-00KE3

CreeLED, Inc.In Stock: 3105XPGBWT-01-0000-00KE3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SPHWH2L3D30CD4RTM3 are identified based on strict alignment of the following critical parameters:

Mandatory Matching Criteria:

• Color Temperature: 5000K (cool white)
• Test Current: 350mA
• Package / Case: 1414 (3535 Metric)
• Mounting Type: Surface Mount
• CRI: 70 or equivalent

Allowable Variation Ranges:

• Forward Voltage (Vf): ±0.15V from 2.8V nominal (2.65V to 2.95V acceptable)
• Flux @ 85°C: ±10% from 155lm (140lm to 170lm acceptable)
• Viewing Angle: ±10° from 120° (110° to 130° acceptable)
• Thermal Resistance: ≤4°C/W
• Current - Max: ≥1.5A

The CreeLED XPGBWT-01-0000-00KE3 (XLamp® XP-G2 series) meets all mandatory criteria and falls within allowable variation ranges for electrical and optical parameters, qualifying it as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CreeLED XPGBWT-01-0000-00KE3

The CreeLED XLamp® XP-G2 XPGBWT-01-0000-00KE3 is the qualified substitute for the Samsung LH351B SPHWH2L3D30CD4RTM3. Selection rationale is based on the following engineering factors:

Product Status Advantage: The substitute part carries "Active" product status, ensuring continued availability, manufacturing support, and technical documentation. The original Samsung LH351B is designated "Not For New Designs," making the active CreeLED alternative the appropriate choice for sustained production.

Electrical Compatibility: Forward voltage differential of -0.08V (2.72V vs. 2.8V) is within acceptable circuit design tolerance for LED driver circuits with current regulation. This variance does not require circuit redesign for applications using constant-current drivers.

Optical Performance: Flux output at 85°C is 160lm versus 155lm, representing a +3.2% improvement. Lumens per watt efficiency is 168 lm/W versus 158 lm/W, indicating superior energy conversion. Both parameters remain within the specified tolerance band and represent performance enhancement rather than degradation.

Mechanical Compatibility: Package dimensions are functionally equivalent (3.45mm vs. 3.50mm, -1.4% variance). Height difference of +0.33mm (2.39mm vs. 2.06mm) must be evaluated for clearance in applications with height-constrained PCB assembly. Standard surface-mount assembly processes accommodate this variance.

Regulatory Compliance: Both parts are RoHS Compliant and carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The substitute maintains full regulatory equivalence.

Optical Characteristics: Viewing angle variance of -5° (115° vs. 120°) represents a minor reduction in beam spread. Applications requiring the full 120° cone angle should evaluate whether 115° viewing angle meets optical system requirements.

Frequently Asked Questions (FAQ)

Q: Can the CreeLED XPGBWT-01-0000-00KE3 be used as a direct drop-in replacement for the Samsung LH351B SPHWH2L3D30CD4RTM3?

A: The CreeLED part is electrically and mechanically compatible for most applications. The primary consideration is the +0.33mm height difference (2.39mm vs. 2.06mm). Verify clearance in your specific PCB assembly design. Forward voltage difference of -0.08V is acceptable for constant-current LED driver circuits without modification.

Q: What is the impact of the -5° viewing angle difference (115° vs. 120°)?

A: The 5-degree reduction in viewing angle narrows the light distribution cone slightly. For applications requiring uniform illumination across a 120° field, measure the actual optical performance in your system. For most general lighting applications, 115° viewing angle provides equivalent practical performance.

Q: Are there any circuit design changes required when substituting the CreeLED part?

A: No circuit redesign is required if your application uses a constant-current LED driver. The -0.08V forward voltage difference is automatically compensated by current regulation. If your circuit uses a fixed resistor for current limiting, verify that the resistor value produces acceptable current at 2.72V instead of 2.8V.

Q: How does the improved efficiency (168 lm/W vs. 158 lm/W) affect my application?

A: The CreeLED substitute delivers approximately 6.3% higher lumens per watt. In constant-current operation at 350mA, this results in approximately 5lm additional light output and proportionally lower heat generation. This represents a performance improvement with no negative impact.

Q: Are both parts available in the same packaging format?

A: Yes. Both the Samsung LH351B and CreeLED XP-G2 are supplied in Tape & Reel (TR) packaging in the 1414 (3535 Metric) form factor, ensuring compatibility with standard surface-mount assembly equipment and processes.

Q: What is the thermal management difference between these parts?

A: Both parts specify identical thermal resistance of 4°C/W. Thermal management design remains unchanged. The slightly higher efficiency of the CreeLED part may result in marginally lower junction temperatures under identical operating conditions.

Q: Is the color rendering index (CRI) identical between the two parts?

A: Yes. Both parts specify CRI of 70, ensuring identical color rendering characteristics. The 5000K cool white color temperature is maintained in both parts.

Q: Can I mix Samsung LH351B and CreeLED XP-G2 parts in the same production batch?

A: Mixing is not recommended for applications where color consistency or brightness uniformity is critical. While both parts meet the same 5000K specification and CRI of 70, minor variations in flux output (155lm vs. 160lm) may be perceptible in side-by-side comparison. Maintain part segregation for color-critical applications.