SPMWHT541MD5WAVHSD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAVHSD is a Samsung Semiconductor LM561B series warm white LED with a color temperature of 3000K, designed for surface mount applications in 5630 package format. This component delivers 33 lumens at 65mA test current with a forward voltage of 2.95V and 120° viewing angle. The part is classified as "Not For New Designs," indicating it has been superseded in Samsung's product portfolio. Identification of equivalent substitute parts is necessary for design continuity, inventory management, and sourcing optimization when this legacy component reaches end-of-life status.

Key Parameters

Parameter	Value	Unit
Series	LM561B	—
Color / CCT	White, Warm / 3000K	—
Flux @ 25°C, 65mA	33 lm (31–35 lm)	lm
Forward Voltage (Typ)	2.95V	V
Test Current	65mA	mA
Maximum Current	150mA	mA
Lumens/Watt @ Test Current	172 lm/W	lm/W
CRI	80	—
Viewing Angle	120°	—
Package / Case	4-SMD, Flat Lead Exposed Pad	—
Supplier Device Package	5630	—
Dimensions	5.00 × 3.00 mm	mm
Height (Max)	0.90mm	mm
Thermal Resistance	16°C/W	°C/W
RoHS Status	RoHS Compliant	—
MSL Rating	2A (4 Weeks)	—

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD5WAVHSD is determined by strict alignment of the following critical parameters:

Mandatory Matching Criteria:

Color and CCT: White, Warm 3000K
Series Family: LM561B or LM561B Plus
Forward Voltage (Typ): 2.95V
Test Current: 65mA
Viewing Angle: 120°
Package Type: 4-SMD, 5630 form factor
Mounting: Surface Mount
Compliance: RoHS status and MSL rating

Allowable Variation Ranges:

Flux @ 25°C: 31–35 lm range (nominal 33 lm)
Maximum Current: Equal to or greater than 150mA
Lumens/Watt: Efficiency improvements acceptable
Height (Max): Up to 0.90mm
Thermal Resistance: Equal to or lower than 16°C/W

The substitute part SPMWHT541MP5WAVMS5 meets all mandatory criteria and operates within allowable variation ranges, qualifying it as a direct electrical and mechanical equivalent.

Parameter Comparison

Parameter	SPMWHT541MD5WAVHSD (Main)	SPMWHT541MP5WAVMS5 (Substitute)	Match Status
Manufacturer	Samsung Semiconductor, Inc.	Samsung Semiconductor, Inc.	Identical
Series	LM561B	LM561B Plus	Compatible Family
Color / CCT	White, Warm / 3000K	White, Warm / 3000K	Identical
Flux @ 25°C, 65mA	33 lm (31–35 lm)	34 lm (33–35 lm)	Within Range
Forward Voltage (Typ)	2.95V	2.95V	Identical
Test Current	65mA	65mA	Identical
Maximum Current	150mA	180mA	Substitute Higher
Lumens/Watt @ Test Current	172 lm/W	177 lm/W	Substitute Higher
CRI	80	80	Identical
Viewing Angle	120°	120°	Identical
Package / Case	4-SMD, Flat Lead Exposed Pad	4-SMD, Flat Leads	Compatible
Supplier Device Package	5630	5630	Identical
Dimensions	5.00 × 3.00 mm	5.00 × 3.00 mm	Identical
Height (Max)	0.90mm	0.80mm	Substitute Lower
Thermal Resistance	16°C/W	15°C/W	Substitute Lower
RoHS Status	RoHS Compliant	ROHS3 Compliant	Substitute Higher Standard
MSL Rating	2A (4 Weeks)	2A (4 Weeks)	Identical
Product Status	Not For New Designs	Active	Substitute Active

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP5WAVMS5

The SPMWHT541MP5WAVMS5 is the qualified substitute for SPMWHT541MD5WAVHSD based on the following engineering factors:

Electrical Compatibility: All critical electrical parameters are identical or superior. Forward voltage, test current, and color temperature match exactly. The substitute delivers 34 lm versus 33 lm at the same 65mA test current, representing a 3% improvement in luminous flux within the specified tolerance range. Efficiency improves from 172 lm/W to 177 lm/W.

Mechanical Compatibility: Both components share identical 5630 package dimensions (5.00 × 3.00 mm) and surface mount configuration. The substitute's maximum height of 0.80mm is lower than the main part's 0.90mm, ensuring compatibility with existing PCB layouts and clearance constraints.

Thermal Performance: The substitute exhibits superior thermal characteristics with 15°C/W thermal resistance compared to 16°C/W, providing improved heat dissipation in thermal-constrained applications.

Compliance and Product Status: The substitute carries ROHS3 compliance, exceeding the RoHS Compliant status of the main part. The substitute maintains Active product status, ensuring long-term availability and supply chain continuity. The main part's "Not For New Designs" classification makes the substitute the appropriate choice for ongoing production and new design implementations.

Packaging and Availability: Both components are supplied in Tape & Reel format with identical MSL 2A (4 Weeks) moisture sensitivity ratings. The substitute maintains 26,898 units in stock, providing superior inventory availability compared to the main part.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAVMS5 be used as a direct replacement for SPMWHT541MD5WAVHSD in existing designs?

A: Yes. Both components share identical electrical specifications at the test current of 65mA, including forward voltage (2.95V), color temperature (3000K), and viewing angle (120°). The substitute's improved efficiency and lower thermal resistance present no compatibility issues. The 4-SMD 5630 package footprint is identical, allowing direct PCB substitution.

Q: What are the key differences between these two parts?

A: The substitute (SPMWHT541MP5WAVMS5) is the LM561B Plus variant with improved performance metrics. It delivers 34 lm versus 33 lm at 65mA, operates at 177 lm/W versus 172 lm/W, supports higher maximum current (180mA versus 150mA), exhibits lower thermal resistance (15°C/W versus 16°C/W), and maintains lower profile height (0.80mm versus 0.90mm). The substitute carries ROHS3 compliance and Active product status.

Q: Are there any package or lead configuration differences?

A: Both components use 4-SMD 5630 package format with identical 5.00 × 3.00 mm footprints. The main part features "Flat Lead Exposed Pad" configuration while the substitute features "Flat Leads." Both configurations are compatible with standard 5630 PCB pads and reflow soldering processes.

Q: What is the significance of the "Not For New Designs" status on the main part?

A: This classification indicates the SPMWHT541MD5WAVHSD has been superseded in Samsung's product portfolio. The substitute SPMWHT541MP5WAVMS5 is the recommended active alternative for new designs and ongoing production. Existing inventory of the main part may be used for legacy system support, but new designs should specify the substitute.

Q: Are the color rendering index (CRI) and viewing angle identical?

A: Yes. Both components maintain CRI of 80 and 120° viewing angle, ensuring identical color reproduction and light distribution characteristics in end-use applications.

Q: What is the impact of the improved thermal resistance in the substitute?

A: The substitute's 15°C/W thermal resistance (versus 16°C/W) provides approximately 6% better heat dissipation. This improvement reduces junction temperature rise under identical operating conditions, extending component lifespan and improving reliability in thermally constrained applications.

Q: Are moisture sensitivity levels identical?

A: Yes. Both components carry MSL 2A (4 Weeks) rating, requiring identical handling, storage, and reflow procedures. No changes to manufacturing processes or component storage protocols are necessary when transitioning to the substitute.

Q: Can the substitute handle higher current levels than the main part?

A: Yes. The substitute supports maximum current of 180mA compared to 150mA for the main part. However, at the standard test current of 65mA, both components operate identically. Higher current capability in the substitute provides design flexibility for applications requiring increased brightness without component replacement.

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