SPMWH3326MS3WAT3SD LED Equivalent & Substitute Parts

Part Overview

The SPMWH3326MS3WAT3SD is a Samsung Semiconductor LM301Z+ neutral white LED designed for surface mount applications. This 5630 package LED operates at 4000K color temperature with a 3-Step MacAdam Ellipse specification, delivering 65mA test current at 2.75V forward voltage. The component is actively produced and maintains ROHS3 compliance with full REACH unaffected status. Substitute parts are identified when inventory constraints, lead time requirements, or design flexibility necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

SPMWH3326MS3WAT3SD

Samsung Semiconductor, Inc.In Stock: 951SPMWH3326MS3WAT3SD Datasheet

Current PartRFQ

SPMWHD32AMV3XAT3SX

Samsung Semiconductor, Inc.In Stock: 40860SPMWHD32AMV3XAT3SX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The SPMWHD32AMV3XAT3SX qualifies as a parametric equivalent based on the following critical substitution criteria:

Matching Parameters:

• Identical color specification: White, Neutral
• Identical CCT: 4000K 3-Step MacAdam Ellipse
• Identical test current: 65mA
• Identical forward voltage: 2.75V
• Identical CRI: 70
• Identical viewing angle: 120°
• Identical package type: 4-SMD, Flat Leads
• Identical supplier device package: 5630
• Identical physical dimensions: 0.197" L x 0.118" W (5.00mm x 3.00mm)
• Identical seated height: 0.031" (0.80mm)
• Identical mounting type: Surface Mount
• Identical compliance status: ROHS3 Compliant, REACH Unaffected

Allowable Variation:

• Current - Max: 200mA (substitute) vs. 400mA (main part) — lower maximum rating does not affect operation at specified 65mA test current
• Thermal Resistance: 7.5°C/W (substitute) vs. 12°C/W (main part) — improved thermal performance is acceptable
• Moisture Sensitivity Level: 2A (4 Weeks) specified only for substitute — does not affect compatibility

The LM301B series substitutes for LM301Z+ within the same Samsung Semiconductor product family, maintaining full electrical and mechanical compatibility for the specified application parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the SPMWH3326MS3WAT3SD and SPMWHD32AMV3XAT3SX maintain active product status with full regulatory compliance. Selection between these parts is determined by application requirements and availability:

SPMWH3326MS3WAT3SD (LM301Z+): Select when maximum current headroom is required. The 400mA maximum rating provides design margin for transient conditions or future application scaling. Current inventory: 872 units.

SPMWHD32AMV3XAT3SX (LM301B): Select when thermal performance is prioritized or when the lower 200mA maximum rating satisfies application requirements. The improved thermal resistance (7.5°C/W vs. 12°C/W) reduces junction temperature rise during operation. Current inventory: 40,752 units. Moisture sensitivity level 2A (4 Weeks) requires standard handling procedures for surface mount assembly.

Both parts satisfy ROHS3 and REACH compliance requirements for regulated markets. No performance degradation occurs when operating at the specified 65mA test current with either part.

Frequently Asked Questions (FAQ)

Q: Can SPMWHD32AMV3XAT3SX replace SPMWH3326MS3WAT3SD in existing designs?

A: Yes. Both parts share identical electrical specifications at the 65mA test current, forward voltage, color temperature, CRI, and viewing angle. Physical dimensions and package type are identical, enabling direct PCB substitution without layout modification.

Q: What is the significance of the different maximum current ratings (400mA vs. 200mA)?

A: The maximum current rating defines the absolute limit for safe operation. At the specified 65mA test current, both parts operate well within their respective ratings. The lower 200mA maximum of the LM301B does not restrict operation at design current. Selection depends on whether your application requires the additional headroom of the 400mA rating.

Q: Does the thermal resistance difference affect circuit design?

A: The LM301B substitute exhibits superior thermal performance (7.5°C/W vs. 12°C/W). This results in lower junction temperature at identical operating current, which may extend component life or allow higher ambient temperature operation. No circuit redesign is required; the improved thermal characteristic is beneficial.

Q: Are there PCB assembly considerations for the substitute part?

A: The LM301B substitute specifies Moisture Sensitivity Level 2A (4 Weeks). This requires standard moisture control procedures during storage and assembly. The main part does not specify MSL, but both parts use identical 5630 package geometry and 4-SMD flat lead configuration, requiring no assembly process changes.

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

A: Yes. Both parts are mechanically and electrically compatible at the specified operating parameters. Mixed usage in the same assembly is permissible if inventory or supply chain conditions require it. Ensure consistent solder reflow profiles and moisture handling for the LM301B per its 2A MSL specification.

Q: What compliance certifications apply to both parts?

A: Both SPMWH3326MS3WAT3SD and SPMWHD32AMV3XAT3SX are ROHS3 Compliant and REACH Unaffected, meeting regulatory requirements for EU and equivalent markets.