SPMWHT541MP5WAQHSD Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAQHSD is a Samsung Semiconductor LM561B Plus white LED in 5630 package format, rated for cool white 5700K color temperature. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. The part delivers 35 lumens at 65mA test current with a forward voltage of 2.95V and 120° viewing angle, suitable for surface mount applications requiring cool white illumination.

Due to its discontinued design status, equivalent substitute parts from the active LM561C series are available to maintain functional compatibility in existing applications while ensuring access to current production inventory.

Substiute Parts

SPMWHT541MP5WAQHSD

Samsung Semiconductor, Inc.In Stock: 1025SPMWHT541MP5WAQHSD Datasheet

Current PartRFQ

SPMWHT541MP5WAQ0S5

Samsung Semiconductor, Inc.In Stock: 1106SPMWHT541MP5WAQ0S5 Datasheet

SimilarRFQ

SPMWHT541ML5XAQ0S0

Samsung Semiconductor, Inc.In Stock: 7948SPMWHT541ML5XAQ0S0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XAQKS0

Samsung Semiconductor, Inc.In Stock: 155506SPMWHT541ML5XAQKS0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XAR0S0

Samsung Semiconductor, Inc.In Stock: 1023SPMWHT541ML5XAR0S0 Datasheet

Parametric EquivalentRFQ

SPMWHT541ML5XARKS0

Samsung Semiconductor, Inc.In Stock: 1223SPMWHT541ML5XARKS0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped into two categories based on allowed electrical and mechanical parameters:

Category 1: Direct Series Substitutes (LM561B Plus) SPMWHT541MP5WAQ0S5 maintains identical series designation, color temperature (5700K), and electrical characteristics. This part is Active status and represents the primary substitute for the discontinued SPMWHT541MP5WAQHSD.

Category 2: Parametric Equivalents (LM561C Series) SPMWHT541ML5XAQ0S0, SPMWHT541ML5XAQKS0, SPMWHT541ML5XAR0S0, and SPMWHT541ML5XARKS0 are LM561C series components that maintain compatibility through:

• Identical package format (5630, 4-SMD, Flat Leads)
• Identical physical dimensions (5.00 × 3.00 × 0.80 mm)
• Identical viewing angle (120°)
• Identical test current (65mA)
• Identical maximum current (180mA)
• Identical CRI (80)
• Identical flux output at test current (35 lm)
• Identical color options (White, Cool)
• Identical mounting type (Surface Mount)

Variations within Category 2 address color temperature (5700K or 5000K) and forward voltage (2.75V or 2.8V) differences. These parameters remain within acceptable substitution ranges for the 5630 LED package category.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP5WAQ0S5

This part is the recommended first choice for direct replacement. It maintains Active product status, identical series designation (LM561B Plus), and matching electrical specifications (2.95V Vf, 5700K CCT). The part demonstrates improved thermal performance (15°C/W versus 16°C/W) and higher luminous efficacy (188 lm/W versus 183 lm/W). RoHS compliance is maintained. Tape & Reel packaging supports automated assembly processes.

Secondary Substitutes: LM561C Series (SPMWHT541ML5XAQ0S0, SPMWHT541ML5XAQKS0, SPMWHT541ML5XAR0S0, SPMWHT541ML5XARKS0)

These parts are suitable when the primary substitute is unavailable or when design flexibility permits series migration. All LM561C variants maintain identical package geometry, electrical test parameters, and mechanical compatibility. Key differences are:

• Forward voltage ranges from 2.75V to 2.8V (versus 2.95V in main part)
• Thermal resistance improves to 12°C/W
• Luminous efficacy increases to 192–196 lm/W
• Color temperature options include 5000K and 5700K

SPMWHT541ML5XAQKS0 offers the highest inventory availability (155,477 pcs) and ROHS3 compliance certification. Cut Tape packaging is suitable for lower-volume or manual assembly applications.

All substitute parts maintain identical CRI (80), viewing angle (120°), and maximum current rating (180mA), ensuring functional compatibility in existing circuit designs.

Frequently Asked Questions (FAQ)

Q1: Can SPMWHT541MP5WAQ0S5 be used as a direct replacement for SPMWHT541MP5WAQHSD?

Yes. Both parts are LM561B Plus series with identical 5700K color temperature, 2.95V forward voltage, 65mA test current, and 5630 package format. The substitute has Active product status and improved thermal characteristics (15°C/W versus 16°C/W).

Q2: What is the difference between LM561B Plus and LM561C series substitutes?

LM561B Plus and LM561C are different LED series from Samsung. Both are compatible within the 5630 package category and maintain identical mechanical dimensions, viewing angle, and test current specifications. LM561C parts offer lower forward voltage (2.75–2.8V versus 2.95V) and improved thermal resistance (12°C/W versus 16°C/W). Series migration is acceptable when circuit design permits voltage variation within the specified range.

Q3: Does forward voltage difference affect circuit compatibility?

Forward voltage differences between 2.75V and 2.95V must be evaluated in the context of the power supply design. Circuits with fixed current sources are unaffected. Circuits with series resistors require recalculation of resistor values to maintain desired LED current. Consult circuit design specifications before substitution.

Q4: What is the significance of color temperature options (5000K versus 5700K)?

Color temperature determines the perceived color of emitted light. 5700K produces cooler (more blue-white) illumination; 5000K produces slightly warmer (more neutral white) illumination. Selection depends on application requirements. Both maintain identical CRI (80) and flux output (35 lm at 65mA).

Q5: Why do some substitutes have ROHS3 certification while others have RoHS certification?

ROHS3 represents a more recent compliance standard. Both certifications indicate lead-free and hazardous substance compliance. ROHS3-certified parts (SPMWHT541ML5XAQKS0, SPMWHT541ML5XARKS0) meet current regulatory requirements and are preferred for new applications.

Q6: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

Tape & Reel packaging is supplied on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut Tape packaging is supplied as individual segments cut from the carrier tape, suitable for lower-volume or manual assembly applications. Both formats contain identical components; packaging choice depends on assembly process requirements.

Q7: How does thermal resistance affect LED performance?

Thermal resistance (°C/W) indicates the temperature rise per watt of dissipated power. Lower thermal resistance improves heat dissipation and extends LED lifespan. LM561C substitutes (12°C/W) offer superior thermal performance compared to the main part (16°C/W), resulting in cooler junction temperatures under identical operating conditions.

Q8: Are all substitute parts suitable for new designs?

SPMWHT541MP5WAQ0S5 and all LM561C variants have Active product status and are suitable for new designs. The original part (SPMWHT541MP5WAQHSD) is marked "Not For New Designs" and should be replaced in new applications.

Q9: What inventory considerations apply to these substitutes?

SPMWHT541ML5XAQKS0 has the highest inventory availability (155,477 pcs). SPMWHT541MP5WAQ0S5 has moderate availability (1,014 pcs). Inventory levels should be verified with the supplier before design finalization.

Q10: Can multiple substitute parts be mixed in a single assembly?

All substitute parts maintain identical flux output (35 lm), viewing angle (120°), and CRI (80) at the specified test current (65mA). Mixing parts with different forward voltages in series-connected strings requires circuit analysis to ensure current distribution remains within acceptable limits. Parallel-connected configurations are not recommended for LEDs without individual current-limiting resistors.