SPMWHT541MD5WAUHS1 Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAUHS1 is a Samsung Semiconductor LM561B series warm white LED in 5630 package format, rated at 3500K color temperature with 2.9V forward voltage and 65mA test current. This component is classified as Not For New Designs, indicating it has reached end-of-life status in Samsung's product portfolio. The warm white 3500K specification makes it suitable for general illumination applications requiring color temperatures in the warm spectrum. Due to its discontinued status, equivalent substitute parts from the active LM561B Plus series are available to maintain design continuity and ensure supply chain reliability.

Substiute Parts

SPMWHT541MD5WAUHS1

Samsung Semiconductor, Inc.In Stock: 1079SPMWHT541MD5WAUHS1 Datasheet

Current PartRFQ

SPMWHT541MP5WAU0S5

Samsung Semiconductor, Inc.In Stock: 3242SPMWHT541MP5WAU0S5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT541MD5WAUHS1 is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Color specification: White, Warm
• CCT (Correlated Color Temperature): 3500K
• Package type: 5630 (4-SMD configuration)
• Mounting type: Surface Mount
• Base product number: SPMWHT541

Secondary Compatibility Parameters:

• Forward voltage (Vf) tolerance: Typical values within 0.05V variation (2.9V to 2.95V)
• Test current: 65mA standard
• Maximum current rating: Must support minimum 150mA
• Physical dimensions: 5.00mm x 3.00mm footprint
• Thermal resistance: 16°C/W or lower
• RoHS compliance status

The SPMWHT541MP5WAU0S5 qualifies as a direct substitute based on matching all primary criteria and maintaining compatibility within secondary parameters. The LM561B Plus variant represents an active product status alternative with enhanced specifications while preserving electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Existing Designs Using SPMWHT541MD5WAUHS1:

The SPMWHT541MP5WAU0S5 is the qualified substitute for continued production and supply chain continuity. This substitution is supported by:

1. Product Status Alignment: The substitute part maintains Active status, ensuring long-term availability and supply reliability compared to the Not For New Designs status of the original part.

2. Compliance Enhancement: The substitute achieves ROHS3 Compliant certification, representing an upgrade from RoHS Compliant status and meeting current regulatory requirements.

3. Electrical Compatibility: Forward voltage variation of 0.05V (2.9V to 2.95V) falls within acceptable tolerance for LED driver circuits designed for the original specification. Test current remains at 65mA with improved maximum current rating of 180mA versus 150mA.

4. Mechanical Compatibility: Identical footprint (5.00mm x 3.00mm) and package type (5630, 4-SMD) ensure direct PCB placement compatibility. The reduced seated height (0.80mm versus 0.90mm) provides additional design margin.

5. Thermal Performance: Improved thermal resistance (15°C/W versus 16°C/W) enhances heat dissipation characteristics, supporting equivalent or improved operational reliability.

For New Designs:

The SPMWHT541MP5WAU0S5 should be selected as the primary component choice, as it represents the active product line continuation with enhanced specifications and regulatory compliance.

Frequently Asked Questions (FAQ)

Q1: Can SPMWHT541MP5WAU0S5 be used as a direct replacement for SPMWHT541MD5WAUHS1 in existing PCB assemblies?

A: Yes. Both parts share identical footprint dimensions (5.00mm x 3.00mm), package type (5630, 4-SMD), and mounting type (Surface Mount). The forward voltage difference of 0.05V (2.9V to 2.95V) is within standard LED driver tolerance. No PCB redesign is required.

Q2: What is the significance of the product status change from "Not For New Designs" to "Active"?

A: Product status indicates Samsung's commitment to supply and support. "Not For New Designs" signals end-of-life phase-out, while "Active" status guarantees continued manufacturing and availability. For production continuity, migration to the Active substitute part is recommended.

Q3: Are there differences in color temperature or light output between the two parts?

A: Both parts are specified at 3500K warm white color temperature. The substitute part provides measured flux output of 34lm at 65mA test current with 177 lm/W efficiency and 80 CRI (Color Rendering Index). The original part does not specify these photometric parameters in the provided data.

Q4: Does the improved thermal resistance of the substitute part affect circuit design?

A: The substitute part's thermal resistance of 15°C/W versus 16°C/W represents improved heat dissipation. This enhancement does not require circuit modifications and provides additional thermal margin for reliability.

Q5: What is the difference between "Flat Lead Exposed Pad" and "Flat Leads" package descriptions?

A: Both descriptions refer to 4-SMD package configurations with identical mechanical compatibility. The terminology variation reflects different documentation standards between product generations. Electrical and mechanical performance remain equivalent.

Q6: Is the higher maximum current rating (180mA versus 150mA) of the substitute part relevant for standard applications?

A: The maximum current rating defines the absolute limit for component operation. Standard applications operate at the 65mA test current for both parts. The higher rating on the substitute part provides additional design margin and does not affect normal operation at specified test current.

Q7: What is the impact of ROHS3 compliance upgrade on supply chain requirements?

A: ROHS3 Compliant status represents enhanced environmental and regulatory compliance. This upgrade ensures compatibility with current and future regulatory requirements in electronics manufacturing and does not impose additional supply chain constraints.

Q8: Are there any viewing angle or optical performance differences?

A: The substitute part specifies a 120° viewing angle. The original part does not provide viewing angle specification in the available data. Both parts maintain identical color temperature (3500K) and warm white color specification.