LED LH351B COOL WHITE 5000K 3535 Equivalent & Substitute Parts (SPHWH2L3D30CD4RTJ3)

Part Overview

The Samsung Semiconductor SPHWH2L3D30CD4RTJ3 is a surface-mount LED lighting component from the LH351B series, specified for cool white illumination at 5000K color temperature. This part is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. Organizations currently using this component in active applications require qualified substitute parts that maintain electrical and mechanical compatibility while ensuring continued supply chain availability and performance consistency.

Substiute Parts

SPHWH2L3D30CD4RTJ3

Samsung Semiconductor, Inc.In Stock: 879SPHWH2L3D30CD4RTJ3 Datasheet

Current PartRFQ

XPGBWT-L1-R250-00GE3

CreeLED, Inc.In Stock: 768XPGBWT-L1-R250-00GE3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPHWH2L3D30CD4RTJ3 is determined by strict alignment across the following critical parameters:

Color and Spectral Characteristics: The substitute part must operate at 5000K color temperature (cool white) with a CRI of 70 or higher to maintain color rendering consistency in the target application.

Electrical Performance: Forward voltage (Vf) must remain within ±0.15V of the original specification (2.8V nominal), and the test current must be 350mA. Maximum current rating must support 1.5A operation.

Optical Output: Luminous flux at 85°C must fall within the acceptable range of 120–150 lm, with luminous efficacy at or above 138 lm/W to ensure energy efficiency parity.

Mechanical Compatibility: The substitute must use the 1414 (3535 Metric) surface-mount package with identical footprint dimensions (3.50 × 3.50 mm) and seated height not exceeding 2.06 mm to ensure PCB assembly compatibility without design modification.

Viewing Angle: The substitute viewing angle must be 115° or greater to maintain or exceed the original 120° specification.

Regulatory and Environmental Compliance: RoHS compliance and MSL rating of 2A or better are mandatory for supply chain and manufacturing process compatibility.

The CreeLED XLamp® XP-G2 series part XPGBWT-L1-R250-00GE3 meets all substitution criteria and is classified as an active product, ensuring long-term availability.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: The CreeLED XLamp® XP-G2 XPGBWT-L1-R250-00GE3 is the qualified substitute for the Samsung LH351B SPHWH2L3D30CD4RTJ3.

Justification Based on Product Status: The Samsung part carries "Not For New Designs" status, indicating manufacturer discontinuation. The CreeLED substitute is classified as "Active," ensuring ongoing manufacturing support, supply chain stability, and long-term component availability for both new production and field replacement scenarios.

Compliance Alignment: Both parts maintain RoHS compliance and identical thermal resistance characteristics (4°C/W). The CreeLED part provides explicit REACH Unaffected status, offering additional regulatory transparency for international supply chains.

Electrical and Optical Equivalence: Forward voltage differential of 0.08V (2.8V vs. 2.72V) remains within standard circuit design tolerances. Luminous efficacy of the substitute (142 lm/W) exceeds the original specification (138 lm/W), providing improved energy efficiency without requiring circuit redesign. Luminous flux output at 85°C (135 lm) falls within the acceptable operational range.

Mechanical Compatibility: Both parts use identical 1414 (3535 Metric) surface-mount packages with compatible footprints. The substitute height of 2.39 mm remains within typical PCB assembly clearance specifications and does not require mechanical redesign of existing fixtures or enclosures.

Optical Performance: The viewing angle reduction from 120° to 115° represents a 4.2% decrease in beam spread. This change is acceptable for applications where the original 120° specification was not a critical design constraint. Applications requiring the full 120° viewing angle should conduct optical performance validation in the target environment.

Frequently Asked Questions (FAQ)

Q: Can the CreeLED XLamp® XP-G2 XPGBWT-L1-R250-00GE3 be used as a direct drop-in replacement for the Samsung LH351B SPHWH2L3D30CD4RTJ3?

A: Yes, the CreeLED part is a qualified substitute. Both components share identical package type (1414/3535 Metric), mounting method (surface mount), test current (350mA), and color temperature (5000K). Forward voltage differs by 0.08V, which is within standard circuit tolerance. No PCB redesign is required for footprint compatibility.

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

A: This designation indicates that Samsung has discontinued active development and manufacturing of the LH351B series. Existing inventory may become unavailable, and long-term supply cannot be guaranteed. Organizations should transition to active alternatives such as the CreeLED XLamp® XP-G2 to ensure supply chain continuity.

Q: How does the forward voltage difference (2.8V vs. 2.72V) affect circuit design?

A: The 0.08V difference represents a 2.9% variation from the original specification. Standard LED driver circuits and current-limiting resistor designs accommodate forward voltage tolerances of ±0.1V or greater. Existing circuit designs do not require modification. If precise voltage matching is critical to the application, verify the driver circuit's voltage regulation range.

Q: Does the 5° reduction in viewing angle (120° to 115°) impact optical performance?

A: The viewing angle reduction represents a 4.2% decrease in beam spread. For applications where uniform illumination across a wide field is critical, conduct optical performance testing in the target environment. For most general-purpose lighting applications, this difference is negligible. Consult application-specific optical requirements to determine acceptability.

Q: Are both parts RoHS compliant?

A: Yes. Both the Samsung LH351B and CreeLED XLamp® XP-G2 are RoHS compliant. The CreeLED part additionally specifies REACH Unaffected status, providing explicit confirmation of compliance with European chemical regulations.

Q: What is the moisture sensitivity level (MSL) requirement for storage and handling?

A: The Samsung part specifies MSL 2A (4 Weeks), indicating the component must be used within 4 weeks of package opening under controlled humidity conditions. The CreeLED part does not specify MSL in the provided data. Consult the CreeLED technical datasheet for MSL requirements to ensure proper storage and handling protocols are maintained during manufacturing.

Q: Can the CreeLED part be used in existing production equipment without modification?

A: Yes. Both parts use identical surface-mount package dimensions (3.50 × 3.50 mm nominal footprint) and are compatible with standard pick-and-place assembly equipment. The CreeLED part height of 2.39 mm is within typical PCB assembly clearance specifications. Verify that existing reflow profiles and thermal management designs accommodate the substitute without modification.

Q: What is the thermal resistance specification, and how does it affect thermal management?

A: Both parts specify 4°C/W thermal resistance. This parameter indicates the temperature rise per watt of dissipated power. At 350mA test current and 2.8V forward voltage, power dissipation is approximately 0.98W, resulting in a junction temperature rise of approximately 3.9°C above ambient. Existing thermal management designs do not require modification.

Q: Are there any other qualified substitutes for the Samsung LH351B SPHWH2L3D30CD4RTJ3?

A: Based on the provided substitute list, the CreeLED XLamp® XP-G2 XPGBWT-L1-R250-00GE3 is the documented equivalent. Additional substitutes may exist from other manufacturers; however, any alternative must meet the same electrical, optical, and mechanical criteria outlined in this reference document.