SPMWHT541MP5WAWGS5 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MP5WAWGS5 is a Samsung Semiconductor LM561B Plus white warm LED (2700K) in 5630 surface mount package with 4-SMD flat leads configuration. 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, maintenance applications, and design revisions. Suitable alternatives must maintain compatibility across electrical characteristics, thermal properties, mechanical dimensions, and environmental compliance standards.

Substiute Parts

SPMWHT541MP5WAWGS5

Samsung Semiconductor, Inc.In Stock: 773SPMWHT541MP5WAWGS5 Datasheet

Current PartRFQ

SPMWHT541MP5WAWMS4

Samsung Semiconductor, Inc.In Stock: 26064SPMWHT541MP5WAWMS4 Datasheet

SimilarRFQ

SPMWH1228FD5W2W0SJ

Samsung Semiconductor, Inc.In Stock: 1080SPMWH1228FD5W2W0SJ Datasheet

Parametric EquivalentRFQ

SPMWH1228FD5W2WKSJ

Samsung Semiconductor, Inc.In Stock: 902SPMWH1228FD5W2WKSJ Datasheet

Parametric EquivalentRFQ

SPMWH1228FD5W2WMSJ

Samsung Semiconductor, Inc.In Stock: 913SPMWH1228FD5W2WMSJ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for SPMWHT541MP5WAWGS5 are classified into two categories based on substitution criteria:

Category 1: Direct Substitute (Same Series)

• SPMWHT541MP5WAWMS4: Identical LM561B Plus series with matching electrical and optical specifications. Differs only in physical dimensions (5.60mm length vs. 5.00mm) and thermal resistance (15°C/W vs. 20°C/W). Product status is Active, ensuring continued availability. This part is the primary direct substitute.

Category 2: Parametric Equivalents (Different Series)

• SPMWH1228FD5W2W0SJ
• SPMWH1228FD5W2WKSJ
• SPMWH1228FD5W2WMSJ

These three parts belong to the LM281B+ series and provide parametric equivalence based on the following allowed criteria:

• Identical color temperature (2700K warm white)
• Identical CRI (80)
• Identical viewing angle (120°)
• Identical package type (4-SMD, Flat Leads, 5630)
• Identical physical dimensions (5.00 × 3.00 mm)
• Identical height (0.80 mm)
• Active product status with ROHS3 compliance

Differences in test current (150mA vs. 65mA), forward voltage (2.9V vs. 2.95V), and thermal resistance (25°C/W vs. 20°C/W) represent parametric variations within acceptable substitution tolerance for this LED category.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): SPMWHT541MP5WAWMS4 is the recommended substitute. It maintains identical series designation (LM561B Plus), electrical characteristics (2.95V, 65mA test current), and optical properties (2700K, 80 CRI, 120° viewing angle). The part carries Active product status with RoHS compliance, ensuring long-term availability and regulatory compliance. The minor dimensional increase (5.60mm vs. 5.00mm length) and improved thermal resistance (15°C/W vs. 20°C/W) represent design enhancements. Inventory availability is significantly higher (25,996 pcs), supporting production continuity.

For Parametric Substitution (Alternative): SPMWH1228FD5W2W0SJ, SPMWH1228FD5W2WKSJ, and SPMWH1228FD5W2WMSJ are functionally equivalent alternatives from the LM281B+ series. All three maintain identical color temperature (2700K), CRI (80), viewing angle (120°), package configuration (4-SMD, 5630), and physical dimensions (5.00 × 3.00 mm). These parts carry Active status with ROHS3 compliance and REACH unaffected designation. The higher test current (150mA vs. 65mA) and forward voltage tolerance (2.9V vs. 2.95V) require circuit design verification to confirm compatibility with existing current-limiting and voltage regulation schemes. Thermal resistance increase (25°C/W vs. 20°C/W) may impact thermal management in high-density applications.

Compliance Considerations: All substitute parts maintain RoHS compliance. The parametric equivalents provide enhanced ROHS3 certification and REACH unaffected status, offering superior regulatory positioning for new designs and international markets.

Frequently Asked Questions (FAQ)

Q1: Can SPMWHT541MP5WAWMS4 be used as a direct drop-in replacement for SPMWHT541MP5WAWGS5?

A: Yes. SPMWHT541MP5WAWMS4 is a direct substitute within the same LM561B Plus series. Electrical specifications (2.95V, 65mA test current), optical properties (2700K, 80 CRI, 120° viewing angle), and package configuration (4-SMD, 5630, 5.00 × 3.00 mm footprint) are identical. The 0.60mm increase in length (5.60mm vs. 5.00mm) and improved thermal resistance (15°C/W) represent design refinements. PCB layout verification is required only if space constraints exist in the original design.

Q2: What are the key differences between LM561B Plus and LM281B+ series substitutes?

A: Both series maintain identical color temperature (2700K), CRI (80), viewing angle (120°), and package type (4-SMD, 5630). The primary differences are test current (LM561B: 65mA vs. LM281B+: 150mA) and forward voltage (LM561B: 2.95V vs. LM281B+: 2.9V). These parametric variations require circuit design review to confirm compatibility with existing current-limiting resistors and power supply voltage specifications. Thermal resistance also increases from 20°C/W to 25°C/W in the LM281B+ series.

Q3: Are the three LM281B+ variants (SPMWH1228FD5W2W0SJ, SPMWH1228FD5W2WKSJ, SPMWH1228FD5W2WMSJ) interchangeable?

A: Yes. All three LM281B+ variants are electrically and mechanically identical. Differences exist only in packaging or supplier designation codes (suffix variations: 0SJ, KSJ, MSJ). Selection among these three parts is based solely on inventory availability and supplier logistics. No circuit design changes are required when switching between these variants.

Q4: What is the impact of thermal resistance differences on component selection?

A: The main part SPMWHT541MP5WAWGS5 has 20°C/W thermal resistance, while SPMWHT541MP5WAWMS4 offers improved 15°C/W performance. The LM281B+ parametric equivalents have 25°C/W thermal resistance. In high-current or high-ambient-temperature applications, lower thermal resistance (15°C/W) provides better heat dissipation. For standard operating conditions, all three options are acceptable. Thermal analysis is required only if junction temperature limits are approached in the original design.

Q5: Can parametric equivalents (LM281B+ series) be used in existing designs without circuit modification?

A: Circuit design review is mandatory. The higher test current (150mA vs. 65mA) and lower forward voltage (2.9V vs. 2.95V) may require adjustment of current-limiting resistors and power supply voltage specifications. The maximum current rating increase (200mA vs. 180mA) provides additional operational margin. Compatibility assessment must include verification of LED driver circuit specifications, current regulation tolerance, and voltage supply headroom.

Q6: What is the significance of "Not For New Designs" status on the main part?

A: This designation indicates the SPMWHT541MP5WAWGS5 has reached end-of-life and is no longer recommended for new product development. Existing inventory (683 pcs) supports current production and maintenance applications. For new designs, SPMWHT541MP5WAWMS4 (Active status, 25,996 pcs inventory) is the preferred substitute, ensuring long-term supply chain stability and design continuity.

Q7: Are all substitute parts RoHS compliant?

A: Yes. SPMWHT541MP5WAWMS4 carries RoHS Compliant certification matching the main part. The three LM281B+ variants (SPMWH1228FD5W2W0SJ, SPMWH1228FD5W2WKSJ, SPMWH1228FD5W2WMSJ) provide enhanced ROHS3 Compliant certification with REACH Unaffected status, offering superior regulatory compliance for international applications and future regulatory requirements.

Q8: What packaging considerations apply to these LED substitutes?

A: All parts use identical 4-SMD flat leads configuration in 5630 supplier package. Physical dimensions are 5.00 × 3.00 mm (main part and parametric equivalents) or 5.60 × 3.00 mm (direct substitute SPMWHT541MP5WAWMS4). Height is uniform at 0.80mm maximum. MSL rating is 2A (4 Weeks) for all parts. PCB footprint compatibility is confirmed for all except SPMWHT541MP5WAWMS4, which requires 0.60mm additional length clearance. Tape & Reel (TR) packaging is standard for all variants.