SPMWHT541MD5WAPMS1 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAPMS1 is a Samsung Semiconductor LM561B series cool white LED (6500K) in 5630 surface mount package format. This component is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. The part delivers 2.9V forward voltage at 65mA test current and is housed in a 4-SMD flat lead exposed pad configuration with 0.90mm maximum seated height.

Due to its discontinued design status, identifying functionally equivalent substitute components is essential for ongoing production support, maintenance applications, and design continuity where this LED specification remains required.

Substiute Parts

SPMWHT541MD5WAPMS1

Samsung Semiconductor, Inc.In Stock: 893SPMWHT541MD5WAPMS1 Datasheet

Current PartRFQ

SPMWHT541MP5WAPKS4

Samsung Semiconductor, Inc.In Stock: 48537SPMWHT541MP5WAPKS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAPMS1 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, Cool white
• Correlated color temperature: 6500K
• Package type: 4-SMD, 5630 form factor
• Mounting method: Surface Mount
• Footprint dimensions: 5.00mm × 3.00mm
• Compliance: RoHS status (RoHS Compliant or ROHS3 Compliant acceptable)
• Moisture sensitivity: MSL 2A or better

Electrical Compatibility Range:

• Forward voltage (Vf): 2.9V to 2.95V (±0.05V tolerance)
• Test current: 65mA nominal
• Maximum current rating: ≥150mA
• Thermal resistance: ≤16°C/W

Substitute parts must maintain identical mechanical fit, electrical operating point, and environmental compliance to ensure direct replacement without circuit redesign or PCB modification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP5WAPKS4

The SPMWHT541MP5WAPKS4 is the direct equivalent for SPMWHT541MD5WAPMS1 applications. Selection rationale is based on the following engineering factors:

Product Status Alignment: The substitute part carries "Active" product status, ensuring ongoing availability and manufacturing support. This addresses the obsolescence risk of the main part's "Not For New Designs" classification.

Electrical Compatibility: Forward voltage differential of 0.05V (2.9V vs. 2.95V) falls within standard LED tolerance ranges and requires no circuit modification. Test current remains identical at 65mA. Maximum current rating increases from 150mA to 180mA, providing improved design margin without affecting nominal operation.

Mechanical Fit: Identical 5.00mm × 3.00mm footprint and 4-SMD 5630 package ensure direct PCB compatibility. The substitute's 0.80mm seated height is 0.10mm lower than the main part, presenting no clearance issues in standard surface mount applications.

Thermal Performance: Thermal resistance improves from 16°C/W to 15°C/W, reducing junction temperature rise by approximately 6% under identical operating conditions.

Compliance Enhancement: The substitute meets ROHS3 Compliant status versus RoHS Compliant, representing alignment with current environmental standards. Both parts maintain identical MSL 2A (4 Weeks) moisture sensitivity rating.

Performance Metrics: The substitute provides documented CRI of 80, 120° viewing angle, and 167 lm/W efficiency at test current—specifications not provided for the main part but consistent with LM561B Plus series performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAPKS4 be used as a direct drop-in replacement for SPMWHT541MD5WAPMS1?

A: Yes. Both parts share identical footprint dimensions (5.00mm × 3.00mm), 4-SMD 5630 package configuration, and surface mount mounting method. Forward voltage tolerance (2.9V to 2.95V) is within standard LED operating range. No PCB redesign or circuit modification is required.

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

A: Both designations refer to the same 4-SMD 5630 package type with surface mount leads. The terminology variation reflects different manufacturer documentation conventions but does not indicate functional or mechanical differences. Footprint compatibility is confirmed.

Q: Why does the substitute part have a lower seated height (0.80mm vs. 0.90mm)?

A: The 0.10mm height reduction reflects manufacturing improvements in the LM561B Plus series. This lower profile is mechanically compatible with all applications designed for the original 0.90mm height specification and presents no clearance or assembly issues.

Q: Is the forward voltage difference (0.05V) significant for circuit design?

A: No. The 0.05V difference (2.9V to 2.95V) is within standard LED manufacturing tolerance and does not require circuit recalculation. Current-limiting resistor values remain valid across this voltage range for typical LED driver circuits.

Q: What does "Active" product status mean compared to "Not For New Designs"?

A: "Active" status indicates the substitute part is in current production with guaranteed long-term availability and manufacturing support. "Not For New Designs" indicates the main part is end-of-life and should not be specified for new product development. The substitute ensures supply chain continuity for existing applications.

Q: Are there any compliance or certification differences between the two parts?

A: The substitute meets ROHS3 Compliant status versus RoHS Compliant for the main part. ROHS3 represents a more recent environmental compliance standard. Both parts maintain identical MSL 2A (4 Weeks) moisture sensitivity rating and EAR99 export classification.

Q: Can the substitute handle higher current than the original part?

A: Yes. Maximum current rating increases from 150mA to 180mA. However, both parts are tested and specified at 65mA nominal current. The higher maximum rating provides improved design margin but does not change the recommended operating point for this application.

Q: What is the inventory status for the substitute part?

A: SPMWHT541MP5WAPKS4 maintains significantly higher inventory (48,482 pcs) compared to the main part (804 pcs), ensuring reliable supply availability for production requirements.