SPMWHT541MD7WAUMS0 Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD7WAUMS0 is a Samsung Semiconductor LM561B warm white LED designed for general lighting applications. This 5630 package LED operates at 3500K color temperature with a typical forward voltage of 2.95V and test current of 65mA, delivering 25 lumens at 130 lm/W efficiency. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and replacement applications.

Substiute Parts

SPMWHT541MD7WAUMS0

Samsung Semiconductor, Inc.In Stock: 1051SPMWHT541MD7WAUMS0 Datasheet

Current PartRFQ

SPMWHT541MP7WAUMS0

Samsung Semiconductor, Inc.In Stock: 52149SPMWHT541MP7WAUMS0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD7WAUMS0 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Series family: LM561B
• Color specification: White, Warm
• Correlated color temperature: 3500K
• Forward voltage: 2.95V (typical)
• Test current: 65mA
• Viewing angle: 120°
• Package type: 4-SMD, 5630 form factor
• Physical dimensions: 5.00mm × 3.00mm
• CRI: 90

Allowable Variation Parameters:

• Flux output: Within specified range (22–28 lm at 25°C)
• Lumens/Watt efficiency: Variation acceptable within product line
• Height seated: Variation acceptable within PCB assembly constraints
• Thermal resistance: Variation acceptable within thermal design margins
• Maximum current rating: May exceed minimum requirement
• Packaging format: Tape & Reel acceptable as functional equivalent to bulk packaging

The SPMWHT541MP7WAUMS0 qualifies as a direct substitute based on identical electrical characteristics, matching color temperature, equivalent optical performance, and compatible mechanical form factor, despite product status and packaging differences.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWHT541MP7WAUMS0

The SPMWHT541MP7WAUMS0 is the direct functional equivalent for the obsolete SPMWHT541MD7WAUMS0. Selection is based on the following engineering criteria:

Electrical Compatibility: Both parts operate at identical forward voltage (2.95V) and test current (65mA), ensuring drop-in compatibility in existing circuit designs without modification to current-limiting resistor networks or power supply specifications.

Optical Performance: Both parts deliver 3500K warm white light with CRI 90 and 120° viewing angle. The substitute exhibits enhanced luminous efficacy (136 lm/W versus 130 lm/W), representing a performance improvement rather than degradation.

Mechanical Compatibility: Both parts use the 5630 package form factor with identical footprint dimensions (5.00mm × 3.00mm). The substitute features a lower seated height (0.80mm versus 0.90mm), which is advantageous for space-constrained PCB layouts and does not create assembly conflicts.

Thermal Performance: The substitute provides improved thermal resistance (15°C/W versus 16°C/W), enabling better heat dissipation in high-density lighting arrays.

Compliance and Product Status: The substitute is active product with ROHS3 compliance, ensuring long-term availability and regulatory alignment. The main part is classified as obsolete, making the substitute the appropriate choice for new designs and ongoing production.

Maximum Current Rating: The substitute supports higher maximum current (180mA versus 150mA), providing additional operational margin without affecting standard 65mA test conditions.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP7WAUMS0 be used as a direct replacement for SPMWHT541MD7WAUMS0 in existing designs?

A: Yes. Both parts share identical electrical specifications (2.95V forward voltage, 65mA test current), optical characteristics (3500K, CRI 90, 120° viewing angle), and mechanical footprint (5630 package, 5.00mm × 3.00mm). 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 surface mount 4-SMD configurations compatible with standard PCB assembly processes. The functional electrical and thermal performance remains equivalent for the specified application.

Q: Why does the substitute part have a higher lumens/watt rating?

A: The SPMWHT541MP7WAUMS0 represents an enhanced version within the LM561B product family, delivering 136 lm/W versus 130 lm/W. This improvement reflects manufacturing advances and does not affect compatibility. The part operates at identical test conditions (65mA, 2.95V).

Q: Is the lower seated height of the substitute part a concern for PCB assembly?

A: No. The substitute's 0.80mm seated height is lower than the main part's 0.90mm, which is beneficial for space-constrained designs. Standard PCB assembly equipment accommodates this variation without adjustment.

Q: What is the significance of "Active" versus "Obsolete" product status?

A: Obsolete parts have discontinued manufacturing and limited inventory availability. Active parts are in current production with guaranteed long-term supply. The substitute's active status ensures availability for new production runs and future replacement needs.

Q: Are both parts RoHS compliant?

A: Yes. The main part is RoHS Compliant; the substitute is ROHS3 Compliant. Both meet environmental and regulatory requirements for electronic component manufacturing and use.

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

A: The substitute supports maximum current of 180mA versus 150mA for the main part. However, both parts operate identically at the standard 65mA test current. The higher rating provides additional operational margin without affecting normal application performance.

Q: What is the moisture sensitivity level, and does it differ between parts?

A: Both parts are rated MSL 2A (4 Weeks), indicating identical moisture sensitivity. Standard dry storage and handling procedures apply to both components.