LED LH351B Cool White 5000K 3535 (SPHWH2L3D30DD4RTK3) - Equivalent & Substitute Parts

Part Overview

The SPHWH2L3D30DD4RTK3 is a surface-mount LED from Samsung Semiconductor's LH351B series, specified for cool white lighting applications at 5000K color temperature. This component is classified as "Not For New Designs," indicating it has reached end-of-life status within Samsung's product portfolio. The part delivers 145 lm at 85°C under 350mA test current with a 120° viewing angle in a compact 3535 metric package (1414 case code).

Due to its discontinued design status, equivalent substitute parts from active product lines are necessary for ongoing production requirements, maintenance applications, and design continuity. Substitutes must maintain electrical compatibility across forward voltage, current ratings, and thermal characteristics while preserving the 5000K color temperature specification and 3535 package footprint.

Substiute Parts

SPHWH2L3D30DD4RTK3

Samsung Semiconductor, Inc.In Stock: 927SPHWH2L3D30DD4RTK3 Datasheet

Current PartRFQ

SPHWH2L3D30CD4RTK3

Samsung Semiconductor, Inc.In Stock: 1747SPHWH2L3D30CD4RTK3 Datasheet

Parametric EquivalentRFQ

XPGBWT-01-0000-00KE3

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPHWH2L3D30DD4RTK3 is determined by strict adherence to the following parameters:

Critical Matching Parameters (Non-Negotiable):

• Color specification: White, Cool white at 5000K ± tolerance
• Package footprint: 1414 (3535 Metric) surface-mount configuration
• Forward voltage range: 2.8V ± acceptable circuit tolerance
• Maximum current rating: 1.5A minimum
• Mounting type: Surface Mount

Important Compatibility Parameters (Functional Equivalence):

• Test current: 350mA nominal operating point
• Luminous flux: 145 lm minimum at 85°C (130-160 lm range acceptable)
• Viewing angle: 120° ± 5° acceptable for most applications
• Thermal resistance: 4°C/W ± 0.5°C/W
• CRI: 70 minimum (original part specifies 75; lower CRI acceptable for general lighting)

Regulatory & Compliance Parameters:

• RoHS Compliant status required
• ECCN: EAR99 classification maintained
• Moisture Sensitivity Level: 2A (4 Weeks) or better

Substitutes identified below meet all critical parameters and maintain functional equivalence within the specified tolerance ranges.

Parameter Comparison

Engineering Selection Recommendations

SPHWH2L3D30CD4RTK3 (Samsung LH351B Series - Parametric Equivalent)

This part represents the closest parametric match to the main part number. Both components are from Samsung's LH351B series and share identical electrical specifications: 2.8V forward voltage, 350mA test current, 1.5A maximum current, 145 lm flux output at 85°C, 120° viewing angle, and 4°C/W thermal resistance. The only variance is CRI specification (70 versus 75), which remains within acceptable tolerance for general lighting applications. Both parts carry "Not For New Designs" status, indicating they are in the same product lifecycle phase. This substitute is optimal for direct replacement in existing designs where Samsung component continuity is required and inventory availability is a secondary consideration.

XPGBWT-01-0000-00KE3 (CreeLED XLamp® XP-G2 Series - Similar Substitute)

This part from CreeLED's active XLamp® XP-G2 product line meets all critical substitution parameters while offering enhanced performance characteristics. Forward voltage is 2.72V (0.08V lower than the main part), which is within typical circuit tolerance margins. Luminous flux output is 160 lm at 85°C, exceeding the main part's 145 lm specification. Efficiency is superior at 168 lm/W versus 148 lm/W. The viewing angle is 115° (5° narrower than the main part's 120°), which may require optical design consideration in wide-distribution applications. Physical dimensions are marginally smaller (3.45mm versus 3.50mm), and seated height is 0.33mm greater (2.39mm versus 2.06mm). This substitute is recommended for new production where active product status, superior efficiency, and long-term availability are prioritized over exact parameter matching.

Selection Criteria Summary:

• For existing design continuity with Samsung components: Select SPHWH2L3D30CD4RTK3
• For active product status and enhanced efficiency: Select XPGBWT-01-0000-00KE3
• For thermal management-critical applications: Both substitutes maintain 4°C/W thermal resistance
• For optical distribution requirements: Verify 115° (CreeLED) versus 120° (Samsung) viewing angle compatibility

All three parts maintain RoHS compliance, EAR99 ECCN classification, and 5000K cool white color temperature specification.

Frequently Asked Questions (FAQ)

Q1: Can SPHWH2L3D30CD4RTK3 be used as a direct drop-in replacement for SPHWH2L3D30DD4RTK3?

A: Yes. Both parts are from Samsung's LH351B series with identical electrical specifications: 2.8V forward voltage, 350mA test current, 1.5A maximum current, 145 lm flux at 85°C, 120° viewing angle, and 4°C/W thermal resistance. The CRI difference (70 versus 75) does not affect electrical compatibility. Package footprint, mounting type, and thermal characteristics are identical. This is a parametric equivalent suitable for direct substitution in existing PCB designs without layout modifications.

Q2: What are the key differences between the Samsung LH351B and CreeLED XLamp® XP-G2 substitutes?

A: The primary differences are: (1) Forward voltage: 2.72V (CreeLED) versus 2.8V (Samsung), a 0.08V difference within typical circuit tolerance; (2) Luminous flux: 160 lm (CreeLED) versus 145 lm (Samsung), representing 10% higher brightness; (3) Efficiency: 168 lm/W (CreeLED) versus 148 lm/W (Samsung); (4) Viewing angle: 115° (CreeLED) versus 120° (Samsung); (5) Product status: Active (CreeLED) versus Not For New Designs (Samsung); (6) Seated height: 2.39mm (CreeLED) versus 2.06mm (Samsung). All other critical parameters including package footprint, thermal resistance, and color temperature are equivalent.

Q3: Will the 0.08V forward voltage difference between Samsung and CreeLED parts affect circuit operation?

A: No. The 0.08V difference (2.72V versus 2.8V) is within standard circuit design tolerance for LED driver circuits. Most constant-current LED drivers operate with forward voltage headroom of ±0.2V or greater. This voltage variance will not affect brightness, color output, or reliability. However, if the circuit operates with minimal voltage headroom (less than 0.1V margin), the lower CreeLED voltage may provide marginal benefit for thermal management.

Q4: Can the CreeLED XLamp® XP-G2 be used in applications requiring exactly 120° viewing angle?

A: The CreeLED part specifies 115° viewing angle, which is 5° narrower than the Samsung 120° specification. For applications requiring wide optical distribution (such as general area lighting or flood applications), this difference may be significant. For focused or directional lighting applications, the 115° angle is typically acceptable. Optical design review is recommended if the application specifically requires 120° or greater viewing angle for uniform illumination patterns.

Q5: What is the impact of the 0.33mm height difference (2.39mm CreeLED versus 2.06mm Samsung)?

A: The CreeLED part is 0.33mm taller when seated on the PCB. This difference is negligible for most applications and will not affect standard PCB assembly processes. However, in space-constrained designs with tight vertical clearance (such as thin-profile fixtures or enclosures), this height variance should be verified against mechanical design constraints. The difference does not affect electrical performance or thermal characteristics.

Q6: Are both substitute parts RoHS compliant?

A: Yes. Both SPHWH2L3D30CD4RTK3 (Samsung) and XPGBWT-01-0000-00KE3 (CreeLED) are RoHS Compliant. Both maintain EAR99 ECCN classification. Both are suitable for applications requiring regulatory compliance with RoHS directives.

Q7: Which substitute should be selected for long-term production availability?

A: The CreeLED XLamp® XP-G2 (XPGBWT-01-0000-00KE3) is classified as "Active" product status, indicating ongoing production and long-term availability. The Samsung SPHWH2L3D30CD4RTK3 is classified as "Not For New Designs," indicating limited future availability. For production programs requiring multi-year component supply, the CreeLED substitute is recommended.

Q8: Is the 10% higher luminous flux of the CreeLED part a concern for brightness-sensitive applications?

A: The 10% higher flux (160 lm versus 145 lm) may require brightness adjustment in applications with fixed optical output requirements. If the application uses constant-current drivers with fixed current settings, the CreeLED part will produce proportionally higher brightness. This can be compensated by reducing driver current by approximately 10% or by optical design adjustments. For applications where brightness variation is acceptable within ±10%, no adjustment is necessary.

Q9: Can these parts be used interchangeably in the same PCB assembly?

A: Yes, with the following considerations: (1) All three parts use identical 1414 (3535 Metric) package footprint and surface-mount configuration; (2) PCB pad layouts are compatible; (3) Reflow soldering profiles are standard for all three parts; (4) The 0.33mm height difference of the CreeLED part does not affect assembly compatibility; (5) Forward voltage differences (0.08V) do not require circuit modifications if the driver circuit has standard voltage headroom. No PCB redesign is required for substitution.

Q10: What is the Moisture Sensitivity Level (MSL) for the substitute parts?

A: The main part SPHWH2L3D30DD4RTK3 specifies MSL 2A (4 Weeks). The Samsung substitute SPHWH2L3D30CD4RTK3 also specifies MSL 2A (4 Weeks). The CreeLED part does not specify MSL in the provided data. Standard handling procedures for MSL 2A components (storage in dry conditions, baking before reflow if exposed to moisture) should be applied to all parts.