LED LH351D COOL WHITE 6000K 3535 (SPHWHTL3DA0GF4PQR6) - Equivalent & Substitute Parts

Part Overview

The SPHWHTL3DA0GF4PQR6 is a surface-mount LED from Samsung Semiconductor's LH351D series, specified for cool white lighting applications at 6000K color temperature. This component is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. Identifying equivalent and substitute parts is necessary for ongoing production support, maintenance applications, and design transitions to current-generation alternatives within the same series.

Substiute Parts

SPHWHTL3DA0GF4PQR6

Samsung Semiconductor, Inc.In Stock: 930SPHWHTL3DA0GF4PQR6 Datasheet

Current PartRFQ

SPHWHTL3DA0GF4RTR6

Samsung Semiconductor, Inc.In Stock: 5630SPHWHTL3DA0GF4RTR6 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPHWHTL3DA0GF4PQR6 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Series designation (LH351D)
• Package type (1414 / 3535 Metric)
• Mounting type (Surface Mount)
• Forward voltage (3V nominal)
• Maximum current rating (3A)
• Thermal resistance (2.2°C/W)
• Physical footprint (3.50mm × 3.50mm)
• RoHS compliance status
• MSL rating (2A / 4 Weeks)

Allowable Variation Parameters:

• Color temperature (CCT): Substitutes within the cool white range (5000K–6500K) are acceptable where application requirements permit
• Luminous flux: Substitutes must maintain the specified flux range (360–420lm @ 85°C)
• CRI: Substitutes must maintain CRI ≥ 90

The substitute part SPHWHTL3DA0GF4RTR6 meets all critical matching parameters and operates within allowable variation limits for color temperature.

Parameter Comparison

Engineering Selection Recommendations

For Existing Production Support: The SPHWHTL3DA0GF4RTR6 is a direct parametric equivalent to the SPHWHTL3DA0GF4PQR6. Both components share identical electrical ratings, thermal characteristics, and mechanical specifications. The only difference is color temperature (5000K vs. 6000K), which falls within the cool white spectrum and is acceptable for applications where precise CCT matching is not a design-critical requirement.

Compliance and Certification: Both parts carry identical RoHS compliance status and MSL ratings. No additional qualification or testing documentation is required beyond standard component acceptance procedures for equivalent parts within the same manufacturer series.

Inventory and Availability: The substitute part SPHWHTL3DA0GF4RTR6 maintains significantly higher inventory levels (5,581 pcs vs. 917 pcs), providing improved supply chain continuity for ongoing production requirements.

Product Status Consideration: Both parts are designated "Not For New Designs." For new product development, evaluation of current-generation LH351D variants or alternative LED series from Samsung Semiconductor is recommended through official product selector tools and current datasheets.

Frequently Asked Questions (FAQ)

Q: Can SPHWHTL3DA0GF4RTR6 be used as a direct replacement for SPHWHTL3DA0GF4PQR6 in existing PCB assemblies?

A: Yes. Both parts are identical in electrical performance, forward voltage, current ratings, thermal characteristics, and physical footprint. The 1000K difference in color temperature (5000K vs. 6000K) represents a shift within the cool white spectrum and does not affect electrical compatibility or mechanical fit.

Q: What is the significance of the CCT difference between 6000K and 5000K?

A: Color temperature is a perceptual characteristic of light output, not an electrical parameter. Both 5000K and 6000K are classified as cool white. The 1000K difference results in a slightly warmer appearance at 5000K compared to 6000K. Substitution is appropriate for applications where color temperature tolerance is ±500K or greater. For applications requiring exact 6000K specification, the original part number should be retained.

Q: Are there any thermal or reliability differences between these parts?

A: No. Both parts have identical thermal resistance (2.2°C/W), identical maximum current ratings (3A), and identical luminous flux specifications (390lm @ 85°C). Thermal performance and reliability characteristics are equivalent.

Q: What does "Not For New Designs" mean for component selection?

A: This designation indicates the part has reached end-of-life status in Samsung's active product portfolio. While the part remains available for existing production support, Samsung does not recommend its use in new product designs. For new designs, current-generation LED alternatives should be evaluated through Samsung's current product documentation.

Q: Are the packaging and handling requirements identical?

A: Yes. Both parts share identical MSL rating (2A / 4 Weeks), identical packaging format (Tape & Reel), and identical RoHS compliance status. Standard component handling and storage procedures for MSL 2A components apply to both parts.

Q: Can these parts be mixed in the same production batch?

A: From an electrical and mechanical standpoint, yes. However, color temperature differences may result in visible variation in the final assembled product if both parts are used in the same application. Production planning should account for this perceptual difference if color uniformity is a design requirement.