SPMWHT541MP5WARGS5 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WARGS5 is a Samsung Semiconductor LM561B Plus white LED in 5630 surface mount package, rated for cool white 5000K color temperature. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. The part delivers 65mA test current at 2.95V forward voltage with 120° viewing angle and 80 CRI (Color Rendering Index). Due to its discontinued design status, equivalent substitute parts are necessary for ongoing production requirements and new design implementations.

Substiute Parts

SPMWHT541MP5WARGS5

Samsung Semiconductor, Inc.In Stock: 961SPMWHT541MP5WARGS5 Datasheet

Current PartRFQ

SPMWHT541MP5WARKS4

Samsung Semiconductor, Inc.In Stock: 73422SPMWHT541MP5WARKS4 Datasheet

SimilarRFQ

SPMWH1228FD5W2R0SJ

Samsung Semiconductor, Inc.In Stock: 1071SPMWH1228FD5W2R0SJ Datasheet

Parametric EquivalentRFQ

SPMWH1228FD5W2RKSJ

Samsung Semiconductor, Inc.In Stock: 1062SPMWH1228FD5W2RKSJ Datasheet

Parametric EquivalentRFQ

SPMWH1228FD5W2RMSJ

Samsung Semiconductor, Inc.In Stock: 1148SPMWH1228FD5W2RMSJ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MP5WARGS5 is determined by the following critical parameters that must remain constant or compatible:

Mandatory Matching Parameters:

• Color and CCT: White, Cool 5000K
• Package / Case: 4-SMD, Flat Leads
• Supplier Device Package: 5630
• Physical Dimensions: 0.197" L x 0.118" W (5.00mm x 3.00mm)
• Height - Seated (Max): 0.031" (0.80mm)
• Viewing Angle: 120°
• CRI: 80
• Mounting Type: Surface Mount

Allowable Parameter Variations:

• Forward Voltage (Vf): 2.9V to 2.95V (within typical operating range)
• Test Current: 65mA to 150mA (within maximum rating of 180mA to 200mA)
• Thermal Resistance: 15°C/W to 25°C/W (acceptable thermal performance range)
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) (both are standard SMD delivery methods)
• Product Status: Active status preferred over discontinued status
• RoHS Compliance: RoHS3 Compliant or RoHS Compliant (both acceptable)

Substitute parts are grouped into two categories: direct packaging equivalents and parametric equivalents with different LED series but identical optical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Direct Series Equivalent (Recommended for Existing Designs):

SPMWHT541MP5WARKS4 is the primary substitute for SPMWHT541MP5WARGS5. Both components belong to the LM561B Plus series and maintain identical electrical and optical specifications. The SPMWHT541MP5WARKS4 is currently in Active product status, whereas the main part is designated "Not For New Designs." The primary difference is packaging format: SPMWHT541MP5WARKS4 is supplied in Cut Tape (CT) format instead of Tape & Reel (TR). The SPMWHT541MP5WARKS4 features improved thermal resistance (15°C/W versus 20°C/W) and includes measured luminous flux data (34lm at 25°C, 177 lm/W), providing superior thermal performance and documented optical output. Both parts maintain RoHS compliance and identical mechanical dimensions.

Parametric Series Equivalents (For New Designs):

SPMWH1228FD5W2R0SJ, SPMWH1228FD5W2RKSJ, and SPMWH1228FD5W2RMSJ are parametric equivalents from the LM281B+ series. These parts maintain identical color temperature (5000K), viewing angle (120°), CRI (80), package type (4-SMD, Flat Leads), and physical dimensions. All three are in Active product status with ROHS3 compliance. The LM281B+ series operates at 150mA test current (versus 65mA for LM561B Plus) with maximum current rating of 200mA (versus 180mA). Forward voltage is 2.9V (versus 2.95V), representing a 0.05V reduction. Thermal resistance is 25°C/W (versus 20°C/W for the main part). These parts are functionally compatible for applications where the higher test current and slightly lower forward voltage are acceptable within circuit design parameters. All three LM281B+ variants are supplied in Tape & Reel (TR) format and are REACH Unaffected.

Compliance and Regulatory Status:

All substitute parts maintain RoHS compliance (either RoHS Compliant or ROHS3 Compliant). The SPMWH1228FD5W2R0SJ, SPMWH1228FD5W2RKSJ, and SPMWH1228FD5W2RMSJ carry REACH Unaffected status. All parts are classified under ECCN EAR99 and HTSUS 8541.41.0000.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WARKS4 be used as a direct replacement for SPMWHT541MP5WARGS5?

A: Yes. Both parts are LM561B Plus series LEDs with identical electrical specifications (2.95V, 65mA test current), optical properties (5000K, 120° viewing angle, 80 CRI), and mechanical dimensions (5630 package, 5.00mm x 3.00mm). The primary difference is packaging format: SPMWHT541MP5WARKS4 is Cut Tape (CT) while SPMWHT541MP5WARGS5 is Tape & Reel (TR). SPMWHT541MP5WARKS4 offers improved thermal resistance (15°C/W versus 20°C/W) and is in Active product status.

Q: What is the difference between the LM561B Plus and LM281B+ series?

A: The LM281B+ series operates at higher test current (150mA versus 65mA) with maximum current rating of 200mA (versus 180mA). Forward voltage is 2.9V (versus 2.95V). Thermal resistance is 25°C/W (versus 20°C/W). Color temperature, viewing angle, CRI, package type, and physical dimensions remain identical. The LM281B+ series is suitable for applications requiring higher current operation.

Q: Does packaging format (Tape & Reel versus Cut Tape) affect component performance?

A: No. Packaging format affects only handling, storage, and assembly processes. Tape & Reel (TR) and Cut Tape (CT) formats contain identical components with identical electrical and optical performance. Format selection depends on assembly equipment and production volume requirements.

Q: Are the LM281B+ equivalents suitable for new designs?

A: Yes. SPMWH1228FD5W2R0SJ, SPMWH1228FD5W2RKSJ, and SPMWH1228FD5W2RMSJ are all in Active product status and carry ROHS3 compliance, making them suitable for new designs. The LM281B+ series provides higher current capability and improved thermal characteristics compared to the discontinued LM561B Plus series.

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

A: "Not For New Designs" indicates the part has reached end-of-life and is no longer recommended for new product development. Existing inventory may be available, but long-term supply is not guaranteed. Active status parts (SPMWHT541MP5WARKS4 and all LM281B+ variants) are recommended for new designs to ensure sustained supply and support.

Q: Can I use SPMWH1228FD5W2RMSJ, SPMWH1228FD5W2RKSJ, or SPMWH1228FD5W2R0SJ interchangeably?

A: Yes. All three LM281B+ variants (SPMWH1228FD5W2RMSJ, SPMWH1228FD5W2RKSJ, and SPMWH1228FD5W2R0SJ) have identical electrical, optical, and mechanical specifications. They differ only in internal manufacturing or packaging lot designations. All are in Active status with equivalent inventory availability.

Q: What thermal considerations apply when substituting with LM281B+ series?

A: The LM281B+ series has thermal resistance of 25°C/W compared to 20°C/W for LM561B Plus. This represents a 5°C/W increase. At identical power dissipation, junction temperature will be approximately 5°C higher. Circuit thermal design must account for this difference if operating near maximum temperature limits.

Q: Are all substitute parts RoHS compliant?

A: Yes. SPMWHT541MP5WARKS4 is RoHS3 Compliant. SPMWH1228FD5W2R0SJ, SPMWH1228FD5W2RKSJ, and SPMWH1228FD5W2RMSJ are ROHS3 Compliant. All parts meet RoHS requirements for hazardous substance restrictions.