SPMWHT541MD5WAT0SC LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAT0SC is a Samsung Semiconductor LM561B series white neutral LED with 4000K color temperature, designed for surface mount applications in 5630 package format. This component delivers 32 lumens at 65mA forward current with 2.95V typical forward voltage and 120° viewing angle. The part is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. Identification of equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for existing applications.

Substiute Parts

SPMWHT541MD5WAT0SC

Samsung Semiconductor, Inc.In Stock: 985SPMWHT541MD5WAT0SC Datasheet

Current PartRFQ

SPMWHT541MP5WATMS4

Samsung Semiconductor, Inc.In Stock: 600211SPMWHT541MP5WATMS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAT0SC is determined by strict alignment across the following critical parameters:

Mandatory Matching Criteria:

• Series family: LM561B or LM561B Plus (same base product number SPMWHT541)
• Color specification: White, Neutral
• CCT: 4000K
• Package format: 5630 (4-SMD configuration)
• Mounting type: Surface Mount
• Viewing angle: 120°
• Thermal resistance: 16°C/W
• MSL rating: 2A (4 Weeks)

Allowable Parameter Variations:

• Forward voltage (Vf): 2.95V nominal (component-level tolerance acceptable)
• Flux output: 30–34 lm range at 65mA test current
• Maximum current rating: May exceed 150mA if base electrical characteristics remain compatible
• Lumens per watt efficiency: May vary within product line improvements
• Height (seated): Variation within 0.80–0.90mm acceptable for PCB assembly compatibility
• RoHS compliance: May upgrade from RoHS Compliant to ROHS3 Compliant
• Product status: Active status preferred over "Not For New Designs"

The SPMWHT541MP5WATMS4 qualifies as a direct substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP5WATMS4

The SPMWHT541MP5WATMS4 is the qualified substitute for SPMWHT541MD5WAT0SC based on the following engineering factors:

Compliance & Status: The substitute part carries Active product status, whereas the main part is designated "Not For New Designs." This status difference indicates that SPMWHT541MP5WATMS4 is the current production equivalent within Samsung's LM561B product family and is recommended for ongoing supply chain continuity.

Regulatory Compliance: Both parts meet RoHS requirements. The substitute achieves ROHS3 Compliant status, representing an upgrade in environmental compliance standards. This enhancement does not introduce incompatibility and supports stricter regulatory environments.

Electrical & Optical Compatibility: Forward voltage, test current, color temperature, CRI, and viewing angle are identical across both parts. Flux output of the substitute (33 lm) falls within the acceptable range (30–34 lm) specified for the main part. The improved efficiency rating (172 lm/W vs. 167 lm/W) reflects product line advancement and does not compromise circuit-level compatibility.

Mechanical & Thermal Compatibility: Both parts share identical footprint dimensions (5.00mm × 3.00mm), package type (5630), and thermal resistance (16°C/W). The substitute's reduced seated height (0.80mm vs. 0.90mm) provides improved PCB assembly clearance and is mechanically compatible with existing designs.

Current Rating Enhancement: The substitute supports a maximum current of 180mA compared to 150mA for the main part. This higher rating provides additional design margin and does not affect operation at the standard 65mA test current.

Moisture Sensitivity: Both parts carry identical MSL 2A (4 Weeks) ratings, ensuring equivalent handling and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WATMS4 be used as a direct drop-in replacement for SPMWHT541MD5WAT0SC?

A: Yes. Both parts share identical electrical characteristics at the 65mA test current (2.95V forward voltage, 32–33 lm flux output, 4000K CCT, 80 CRI). Mechanical compatibility is confirmed through matching footprint dimensions (5.00mm × 3.00mm), package type (5630), and thermal resistance (16°C/W). The substitute's lower seated height (0.80mm) is compatible with existing PCB designs. No circuit modifications are required.

Q: What is the difference between "Flat Lead Exposed Pad" and "Flat Leads" package designations?

A: Both designations refer to 4-SMD surface mount configurations within the 5630 package family. The primary difference is in lead frame design detail. Both are compatible with standard reflow soldering processes and PCB footprints designed for 5630 LEDs. The thermal and electrical performance remains equivalent.

Q: Why is the main part marked "Not For New Designs"?

A: This designation indicates that SPMWHT541MD5WAT0SC has reached end-of-life status in Samsung's product portfolio. The SPMWHT541MP5WATMS4 (LM561B Plus variant) is the active production equivalent. For new designs, SPMWHT541MP5WATMS4 is the recommended selection. For existing designs using the main part, substitution to the active variant ensures long-term supply availability.

Q: Are there differences in flux output between the two parts?

A: The main part specifies 32 lm (30–34 lm range) at 65mA. The substitute specifies 33 lm (32–34 lm range) at 65mA. Both values fall within overlapping acceptable ranges. The substitute's slightly higher nominal output (33 lm vs. 32 lm) reflects product line efficiency improvements and does not introduce incompatibility. Optical performance remains equivalent for lighting applications.

Q: What is the significance of the improved lumens per watt rating?

A: The substitute achieves 172 lm/W compared to 167 lm/W for the main part. This 3% efficiency improvement reflects Samsung's product development advances within the LM561B family. At the standard 65mA operating current, this translates to marginally improved power efficiency. The improvement does not affect circuit compatibility or thermal management requirements.

Q: Can the substitute's higher maximum current rating (180mA vs. 150mA) affect circuit design?

A: No. The higher maximum current rating of the substitute provides additional design margin but does not require circuit modifications. If the original design operates at 65mA (the specified test current), the substitute performs identically. The higher rating simply indicates the substitute can tolerate greater current stress if needed, offering flexibility for future design iterations.

Q: Are storage and handling requirements identical?

A: Yes. Both parts carry MSL 2A (4 Weeks) moisture sensitivity ratings. Storage conditions, reflow profiles, and handling procedures are identical. No changes to supply chain logistics or assembly processes are required.

Q: Is the ROHS3 compliance upgrade significant?

A: ROHS3 Compliant status represents an upgrade from RoHS Compliant and reflects stricter environmental standards. This enhancement is compatible with all existing applications and does not introduce material or performance changes. It supports compliance with evolving regulatory requirements in markets with stricter environmental standards.