SPMWHT541MD5WAVMSB LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAVMSB is a Samsung Semiconductor LM561B series warm white LED designed for surface mount applications. This component operates at 3000K color temperature with a forward voltage of 2.95V and test current of 65mA, delivering 29 lumens at 151 lm/W efficiency. The device features a 120° viewing angle and is housed in a 5630 package format with exposed pad configuration.

The SPMWHT541MD5WAVMSB carries a "Not For New Designs" product status. This designation indicates the component remains available but is no longer recommended for new product development. Identifying equivalent substitute parts ensures design continuity and supports long-term supply chain planning for existing applications.

Substiute Parts

SPMWHT541MD5WAVMSB

Samsung Semiconductor, Inc.In Stock: 940SPMWHT541MD5WAVMSB Datasheet

Current PartRFQ

SPMWHT541MP5WAVMS4

Samsung Semiconductor, Inc.In Stock: 50283SPMWHT541MP5WAVMS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAVMSB is determined by strict alignment across the following critical parameters:

Mandatory Matching Criteria:

• Color and CCT: White, Warm 3000K
• Forward Voltage (Typ): 2.95V
• Test Current: 65mA
• Viewing Angle: 120°
• Package Format: 5630 (4-SMD configuration)
• CRI: 80
• Thermal Resistance: 16°C/W
• Mounting Type: Surface Mount
• RoHS Compliance Status

Allowable Variation Parameters:

• Luminous Flux: Acceptable within typical manufacturing tolerance ranges
• Lumens per Watt: Acceptable within typical manufacturing tolerance ranges
• Maximum Current Rating: May exceed the main part specification
• Height (Seated): Minor dimensional variation acceptable if within package specification
• Product Status: Active status preferred for new inventory sourcing

The SPMWHT541MP5WAVMS4 qualifies as a direct substitute based on identical CCT, forward voltage, test current, viewing angle, package type, and thermal characteristics. The substitute exhibits improved luminous flux performance and higher maximum current rating, with active product status supporting ongoing availability.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SPMWHT541MP5WAVMS4

The SPMWHT541MP5WAVMS4 is the qualified substitute for SPMWHT541MD5WAVMSB applications. Selection rationale is based on the following engineering factors:

Product Status Alignment: The substitute carries Active product status, whereas the main part is designated "Not For New Designs." This status difference is significant for long-term supply chain security and component lifecycle management.

Electrical Compatibility: Both components share identical forward voltage (2.95V), test current (65mA), viewing angle (120°), and thermal resistance (16°C/W). These parameters ensure direct functional equivalence in circuit operation.

Performance Enhancement: The substitute delivers improved luminous flux (32lm vs. 29lm) and efficiency (167 lm/W vs. 151 lm/W) at identical operating conditions. These improvements result from the LM561B Plus variant technology and do not introduce incompatibility.

Mechanical Compatibility: Both parts use the 5630 package format with identical footprint dimensions (5.00mm × 3.00mm). The substitute exhibits a lower seated height (0.80mm vs. 0.90mm), which is advantageous for space-constrained applications and does not prevent substitution.

Compliance Status: The substitute meets ROHS3 compliance, exceeding the RoHS Compliant status of the main part. Both components share identical MSL ratings (2A, 4 Weeks).

Supply Availability: The substitute maintains significantly higher inventory (50200 pcs vs. 838 pcs), supporting sustained production requirements.

Lead Configuration Note: The main part features "Flat Lead Exposed Pad" while the substitute uses "Flat Leads." Both configurations are compatible with standard 5630 package assembly processes. PCB layout and solder paste stencil design may require minor verification to accommodate the lead configuration difference.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAVMS4 be used as a direct replacement for SPMWHT541MD5WAVMSB in existing designs?

A: Yes. The substitute meets all mandatory electrical and mechanical parameters. Forward voltage, test current, color temperature, viewing angle, and thermal characteristics are identical. The improved luminous flux and efficiency represent performance enhancements that do not compromise circuit operation. PCB assembly processes may require verification of the lead configuration difference (Flat Lead Exposed Pad vs. Flat Leads).

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

A: This designation indicates the component is in mature or declining production phase and is no longer recommended for new product development. Existing inventory remains available for current production needs. The SPMWHT541MP5WAVMS4 substitute, with Active status, is the recommended choice for new designs and long-term supply planning.

Q: Are there any thermal management differences between these parts?

A: Both components specify identical thermal resistance of 16°C/W. Thermal performance in application is equivalent. The substitute's lower seated height (0.80mm vs. 0.90mm) may provide marginal thermal benefits in space-constrained layouts due to improved PCB thermal coupling, but this difference is not a primary design factor.

Q: How do the luminous flux improvements affect circuit design?

A: The substitute delivers 3 lumens higher flux at identical test current (65mA). This improvement does not require circuit modifications. If the original design operated at maximum current (150mA), the substitute supports operation up to 180mA, providing additional design margin. Existing current-limiting circuits remain valid without adjustment.

Q: What is the impact of the lead configuration difference?

A: The main part uses "Flat Lead Exposed Pad" while the substitute uses "Flat Leads." Both are standard 5630 package configurations. The difference affects solder paste stencil design and reflow profile optimization. Assembly process validation is recommended to confirm solder joint quality and thermal performance with the substitute's lead geometry.

Q: Is the ROHS3 compliance upgrade a concern for existing applications?

A: No. ROHS3 compliance exceeds RoHS Compliant status and represents enhanced environmental and material standards. This upgrade is fully backward compatible and does not introduce any functional or compatibility issues.

Q: What inventory considerations apply to this substitution?

A: The main part has 838 pieces in stock, while the substitute has 50200 pieces available. For production planning, the substitute's significantly higher inventory supports sustained manufacturing schedules and reduces supply chain risk.