SPMWHT541ML5XAUMS5 LED LM561C Warm White 3500K 5630 Equivalent & Substitute Parts

Part Overview

The SPMWHT541ML5XAUMS5 is a Samsung Semiconductor LM561C series warm white LED with a correlated color temperature of 3500K, designed for surface mount applications in the 5630 package format. This component operates at 2.75V forward voltage with a test current of 65mA and delivers 34 lumens at 25°C, achieving 190 lumens per watt efficiency. The part is currently active in production and RoHS3 compliant.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications allow for compatible variants with different color temperature ratings or series designations while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Series	LM561C
Color	White, Warm
CCT (Correlated Color Temperature)	3500K	K
Flux @ 25°C, 65mA	34	lm
Forward Voltage (Vf) Typical	2.75	V
Test Current	65	mA
Maximum Current	200	mA
Lumens per Watt @ 65mA	190	lm/W
Color Rendering Index (CRI)	80
Viewing Angle	120	°
Package / Case	4-SMD, Flat Leads
Supplier Device Package	5630
Size / Dimension	5.00 x 3.00	mm
Height - Seated (Max)	0.80	mm
Thermal Resistance	12	°C/W
Mounting Type	Surface Mount
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	2A (4 Weeks)

Substitute Part Grouping Explanation

Substitution of the SPMWHT541ML5XAUMS5 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria (Must Match):

Package / Case: 4-SMD, Flat Leads
Supplier Device Package: 5630
Size / Dimension: 5.00mm x 3.00mm
Height - Seated (Max): 0.80mm
Mounting Type: Surface Mount
Color: White, Warm
Viewing Angle: 120°
Flux @ 25°C, 65mA: 34 lm (33lm ~ 35lm range)
Test Current: 65mA
CRI: 80

Secondary Substitution Criteria (Allowable Variations):

CCT (Correlated Color Temperature): 3000K or 3500K (warm white variants)
Series: LM561C or LM561B Plus (same base product family)
Forward Voltage (Vf): 2.75V (LM561C) or 2.95V (LM561B Plus)
Maximum Current: 200mA (LM561C) or 180mA (LM561B Plus)
Lumens per Watt: 190 lm/W (LM561C) or 177 lm/W (LM561B Plus)
Thermal Resistance: 12°C/W (LM561C) or 15°C/W (LM561B Plus)
Packaging Format: Tape & Reel (TR) or Cut Tape (CT)
RoHS Status: RoHS3 Compliant or RoHS Compliant
Product Status: Active or Not For New Designs

Substitutes are grouped into two categories: LM561C variants (same series, different CCT or packaging) and LM561B Plus variants (enhanced series with higher forward voltage and different thermal characteristics).

Parameter Comparison

Part Number	Series	CCT (K)	Vf (V)	Flux @ 25°C (lm)	lm/W	Max Current (mA)	Thermal Resistance (°C/W)	Packaging	Product Status	RoHS Status
SPMWHT541ML5XAUMS5	LM561C	3500	2.75	34	190	200	12	Tape & Reel	Active	RoHS3
SPMWHT541ML5XAU0S5	LM561C	3500	2.75	34	190	200	12	Cut Tape	Active	RoHS
SPMWHT541ML5XAV0S5	LM561C	3000	2.75	34	190	200	12	Tape & Reel	Active	RoHS
SPMWHT541ML5XAVMS5	LM561C	3000	2.75	34	190	200	12	Tape & Reel	Active	RoHS3
SPMWHT541MP5WAU0S5	LM561B Plus	3500	2.95	34	177	180	15	Tape & Reel	Active	RoHS3
SPMWHT541MP5WAUUS5	LM561B Plus	3500	2.95	34	177	180	15	Tape & Reel	Not For New Designs	RoHS
SPMWHT541MP5WAVMS5	LM561B Plus	3000	2.95	34	177	180	15	Tape & Reel	Active	RoHS3
SPMWHT541MP5WAVUS5	LM561B Plus	3000	2.95	34	177	180	15	Tape & Reel	Not For New Designs	RoHS

Engineering Selection Recommendations

For Active Production Designs:

Select SPMWHT541ML5XAVMS5 when 3000K color temperature is acceptable and RoHS3 compliance is required. This part maintains identical electrical performance to the primary part while offering the warmer color temperature variant within the LM561C series.

Select SPMWHT541MP5WAVMS5 when thermal management is a design consideration and the higher forward voltage of 2.95V is compatible with the power supply design. This LM561B Plus variant provides enhanced thermal characteristics (15°C/W vs. 12°C/W) and is RoHS3 compliant with Active product status.

For Cut Tape Packaging Requirements:

SPMWHT541ML5XAU0S5 provides identical electrical specifications to the primary part in Cut Tape format, suitable for lower-volume manufacturing or hand-assembly processes.

For Legacy or Existing Designs:

SPMWHT541MP5WAUUS5 and SPMWHT541MP5WAVUS5 are designated "Not For New Designs" and should only be used for sustaining production of existing products where design changes are not feasible.

Compliance Considerations:

All recommended substitutes maintain RoHS compliance. Parts designated RoHS3 Compliant are preferred for new designs. All parts share identical moisture sensitivity level (MSL 2A, 4 Weeks) and ECCN/HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541ML5XAU0S5 (Cut Tape) be used as a direct replacement for SPMWHT541ML5XAUMS5 (Tape & Reel)?

A: Yes, from an electrical and mechanical standpoint. Both are LM561C series with identical 3500K CCT, 2.75V forward voltage, 34 lm flux, and 190 lm/W efficiency. The difference is packaging format only. Cut Tape is suitable for lower-volume or hand-assembly processes, while Tape & Reel is optimized for automated pick-and-place equipment. Verify your assembly equipment compatibility before selection.

Q: What is the difference between LM561C and LM561B Plus variants?

A: LM561B Plus is an enhanced series with higher forward voltage (2.95V vs. 2.75V), slightly lower efficiency (177 lm/W vs. 190 lm/W), lower maximum current rating (180mA vs. 200mA), and higher thermal resistance (15°C/W vs. 12°C/W). Both deliver identical 34 lm flux at 65mA test current. LM561B Plus is suitable when power supply voltage is higher or when thermal dissipation is less critical.

Q: Can I substitute a 3000K part for a 3500K part?

A: Electrically and mechanically, yes. SPMWHT541ML5XAV0S5 and SPMWHT541ML5XAVMS5 (3000K) are fully compatible with SPMWHT541ML5XAUMS5 (3500K) in terms of voltage, current, flux output, and package dimensions. The only difference is color temperature. Verify that your application's color temperature specification allows for 3000K (warmer) instead of 3500K before substitution.

Q: Which substitute part has the best availability?

A: SPMWHT541MP5WAVMS5 has the highest inventory (26,898 pcs) among all substitutes. SPMWHT541ML5XAVMS5 has 10,671 pcs in stock. Both are Active status and RoHS3 compliant, making them suitable for new designs requiring high-volume supply.

Q: Are parts marked "Not For New Designs" still usable?

A: Parts with "Not For New Designs" status (SPMWHT541MP5WAUUS5 and SPMWHT541MP5WAVUS5) are suitable only for sustaining production of existing products. They should not be used in new product designs. For new designs, select parts with Active product status.

Q: What is the thermal resistance difference and when does it matter?

A: LM561C variants have 12°C/W thermal resistance, while LM561B Plus variants have 15°C/W. In high-power or thermally constrained applications, the lower thermal resistance of LM561C (12°C/W) provides better heat dissipation. If your design operates at maximum current (200mA for LM561C or 180mA for LM561B Plus) in a confined space, thermal resistance becomes a critical selection factor.

Q: Is RoHS3 compliance required for my application?

A: RoHS3 compliance is mandatory for products sold in the European Union and many other markets. SPMWHT541ML5XAUMS5, SPMWHT541ML5XAVMS5, SPMWHT541MP5WAU0S5, and SPMWHT541MP5WAVMS5 are all RoHS3 compliant. Parts marked only "RoHS Compliant" may not meet RoHS3 requirements for new designs.

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