SPMWH3326MD3WATYSA LED Equivalent & Substitute Parts

Part Overview

The SPMWH3326MD3WATYSA is a Samsung Semiconductor LM301Z series LED lighting component featuring neutral white 4000K color temperature in a 1212 (3030 Metric) surface mount package. This part is classified as obsolete, making identification of compatible substitute components essential for ongoing production and maintenance applications. The LM301Z series delivers 33 lumens at 25°C under 65mA test current with a forward voltage of 2.75V and 120° viewing angle, suitable for general illumination and display backlighting applications.

Substiute Parts

SPMWH3326MD3WATYSA

Samsung Semiconductor, Inc.In Stock: 1179SPMWH3326MD3WATYSA Datasheet

Current PartRFQ

SPMWH3326MP3WATYS0

Samsung Semiconductor, Inc.In Stock: 958SPMWH3326MP3WATYS0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWH3326MD3WATYSA is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Color specification: White, Neutral
• CCT (Correlated Color Temperature): 4000K
• Package / Case: 1212 (3030 Metric)
• Forward Voltage (Vf): 2.75V nominal
• Test Current: 65mA
• Viewing Angle: 120°
• Mounting Type: Surface Mount
• CRI: 70

Allowable Variation Parameters:

• Flux output at 25°C, 65mA: Substitute parts must fall within acceptable lumen ranges for the application
• Lumens/Watt efficiency: Higher efficiency values indicate improved performance
• Height - Seated (Max): Minor variations acceptable if within PCB assembly clearance specifications
• Product Status: Active status preferred for long-term availability

The SPMWH3326MP3WATYS0 qualifies as a direct substitute based on matching all mandatory parameters while offering improved luminous flux (36 lm vs. 33 lm) and efficiency (201 lm/W vs. 185 lm/W) with active product status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWH3326MP3WATYS0

The SPMWH3326MP3WATYS0 is the recommended substitute for the obsolete SPMWH3326MD3WATYSA based on the following engineering criteria:

1. Product Status Alignment: The substitute carries Active product status, ensuring long-term component availability and supply chain continuity compared to the Obsolete main part.

2. Electrical Compatibility: Both components share identical forward voltage (2.75V), test current (65mA), maximum current rating (400mA), and thermal resistance (12°C/W), enabling direct circuit-level substitution without redesign.

3. Optical Specifications: Identical color temperature (4000K), CRI (70), and viewing angle (120°) ensure optical performance consistency in lighting applications.

4. Package Compatibility: Both parts use the 1212 (3030 Metric) surface mount package with 3.00mm × 3.00mm footprint. The substitute's maximum seated height of 0.75mm versus 0.60mm represents a 0.15mm increase, which remains within standard PCB assembly tolerances for most applications.

5. Performance Enhancement: The substitute delivers improved luminous flux (36 lm vs. 33 lm) and efficiency (201 lm/W vs. 185 lm/W), providing measurable performance gains without additional circuit modifications.

6. Compliance and Handling: Both components maintain identical MSL rating (2A, 4 Weeks) and ECCN classification (EAR99), requiring no changes to procurement, storage, or handling procedures.

Frequently Asked Questions (FAQ)

Q: Can the SPMWH3326MP3WATYS0 be used as a direct replacement for the SPMWH3326MD3WATYSA in existing designs?

A: Yes. The substitute matches all critical electrical and optical parameters: 4000K color temperature, 2.75V forward voltage, 65mA test current, 120° viewing angle, 1212 (3030 Metric) package, and 70 CRI. The 0.15mm increase in seated height is within standard PCB assembly tolerances. No circuit redesign is required.

Q: What is the difference between the LM301Z and LM301Z+ series?

A: Both series share identical electrical and optical specifications for this application. The LM301Z+ designation indicates an improved generation with enhanced luminous flux (36 lm vs. 33 lm) and efficiency (201 lm/W vs. 185 lm/W) while maintaining backward compatibility.

Q: Are there any packaging differences between the main part and substitute?

A: Both components use the 1212 (3030 Metric) surface mount package with identical 3.00mm × 3.00mm footprint. The substitute's maximum seated height is 0.75mm compared to 0.60mm for the main part. This 0.15mm difference is negligible for standard PCB assembly and does not affect component placement or soldering processes.

Q: What is the significance of the "Active" product status for the substitute?

A: Active product status indicates that the SPMWH3326MP3WATYS0 is in current production and supported by the manufacturer. This ensures ongoing availability, consistent quality, and long-term supply chain reliability, contrasting with the Obsolete status of the main part.

Q: Do both parts require identical handling and storage procedures?

A: Yes. Both components carry identical MSL (Moisture Sensitivity Level) rating of 2A with 4-week floor life. Storage, handling, and reflow procedures remain unchanged between the main part and substitute.

Q: Will the improved efficiency of the substitute affect circuit design?

A: No. The substitute operates at identical voltage (2.75V) and current (65mA) specifications. The improved efficiency (201 lm/W vs. 185 lm/W) results in higher light output without requiring circuit modifications. Existing current-limiting resistors and power supply designs remain valid.

Q: Is the substitute suitable for applications requiring specific lumen output ranges?

A: The substitute's flux output of 36 lm (34–38 lm range) is higher than the main part's 33 lm (31–34 lm range). Applications with strict lumen specifications should verify that the increased output falls within acceptable tolerances. For most general illumination and backlighting applications, the higher output provides performance improvement.