SPMWHT541MD5WATHS3 Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WATHS3 is a Samsung Semiconductor LM561B series neutral white LED (4000K) designed for surface mount lighting applications. This component operates at 2.9V forward voltage with a 65mA test current and delivers 80 CRI performance in a compact 5630 package format (5.00mm x 3.00mm).

The SPMWHT541MD5WATHS3 carries a "Not For New Designs" product status, indicating Samsung has transitioned this model to end-of-life. This status necessitates identification of active substitute components that maintain electrical and mechanical compatibility for ongoing production requirements or design updates.

Substiute Parts

SPMWHT541MD5WATHS3

Samsung Semiconductor, Inc.In Stock: 1106SPMWHT541MD5WATHS3 Datasheet

Current PartRFQ

SPMWHT541MP5WATMS4

Samsung Semiconductor, Inc.In Stock: 600211SPMWHT541MP5WATMS4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WATHS3 is determined by strict alignment across the following critical parameters:

Mandatory Matching Criteria:

• Series family (LM561B)
• Color and correlated color temperature (White, Neutral, 4000K)
• Package type and supplier device package (4-SMD, 5630)
• Physical dimensions (5.00mm x 3.00mm footprint)
• CRI rating (80 minimum)
• Mounting type (Surface Mount)

Electrical Compatibility Range:

• Forward voltage tolerance: 2.9V ±0.1V
• Test current: 65mA nominal
• Maximum current rating: ≥150mA

Compliance Requirements:

• RoHS compliance status
• Moisture sensitivity level (MSL 2A)

The SPMWHT541MP5WATMS4 qualifies as a direct substitute based on full alignment with these criteria. This part maintains the LM561B Plus series designation, identical color temperature, matching package geometry, and equivalent thermal characteristics while offering active product status.

Parameter Comparison

Engineering Selection Recommendations

For Existing Designs Using SPMWHT541MD5WATHS3:

The SPMWHT541MP5WATMS4 is the qualified substitute for ongoing production. The transition from "Not For New Designs" status to an active product line ensures long-term supply continuity and manufacturing support. Both components share identical footprint geometry (5.00mm x 3.00mm), thermal resistance (16°C/W), and electrical test parameters (65mA at 2.9V nominal).

Key Advantages of SPMWHT541MP5WATMS4:

• Active product status with full Samsung manufacturing support
• Higher maximum current rating (180mA vs. 150mA) provides design margin
• Lower seated height (0.80mm vs. 0.90mm) improves PCB density options
• Enhanced RoHS3 compliance certification
• Documented luminous efficacy (172 lm/W) and viewing angle (120°)

Electrical Compatibility: Forward voltage differential of 0.05V (2.95V vs. 2.9V) falls within standard LED circuit tolerance and requires no redesign of current-limiting resistor networks. Test current remains constant at 65mA, ensuring identical brightness and thermal behavior in existing driver circuits.

Mechanical Compatibility: Both components utilize 4-SMD package architecture with 5630 supplier designation. The 0.10mm height reduction in the substitute part presents no assembly or clearance conflicts and may improve thermal dissipation in constrained layouts.

Compliance Posture: ROHS3 certification of the substitute part exceeds the RoHS Compliant status of the original component, supporting regulatory requirements in markets with enhanced environmental standards.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WATMS4 be used as a direct drop-in replacement for SPMWHT541MD5WATHS3?

A: Yes. Both components share identical footprint dimensions (5.00mm x 3.00mm), package type (4-SMD, 5630), and electrical test parameters (65mA, 2.9V nominal). The 0.05V forward voltage difference and 0.10mm height reduction present no compatibility issues for standard LED driver circuits.

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

A: This designation indicates Samsung has concluded active development and marketing of the SPMWHT541MD5WATHS3 and recommends customers transition to newer alternatives. The SPMWHT541MP5WATMS4 represents the active successor within the LM561B family, ensuring continued supply and technical support.

Q: Are there differences in thermal performance between these parts?

A: No. Both components specify identical thermal resistance of 16°C/W. The substitute part's lower seated height (0.80mm vs. 0.90mm) may provide marginal improvements in PCB-level thermal coupling but does not alter the package thermal rating.

Q: Does the higher maximum current rating (180mA vs. 150mA) of the substitute require circuit modifications?

A: No. The test current remains 65mA for both parts. The higher maximum rating on the substitute provides additional design margin and allows operation at higher brightness levels if required, but existing circuits designed for 150mA maximum will operate identically.

Q: How do the lead configurations differ between "Flat Lead Exposed Pad" and "Flat Leads"?

A: Both configurations are compatible for standard reflow soldering processes. The exposed pad variant on the original part provides enhanced thermal dissipation through direct solder connection to PCB copper. The flat leads variant on the substitute maintains equivalent thermal performance through the 16°C/W package rating and is suitable for identical thermal management designs.

Q: Is the 120° viewing angle specification on the substitute part a functional difference?

A: The viewing angle specification on the substitute part documents the light distribution characteristic. The original part does not specify this parameter. Both components are designed for general illumination applications and the 120° angle is typical for 5630 package LEDs. This represents documentation enhancement rather than functional change.

Q: What is the impact of ROHS3 compliance versus RoHS Compliant status?

A: ROHS3 represents the current regulatory standard with enhanced restrictions on hazardous substances. The substitute part's ROHS3 certification ensures compliance with current and anticipated environmental regulations in major markets. Both parts are suitable for RoHS-regulated applications; the substitute provides forward compliance assurance.

Q: Are there any inventory or lead time considerations for the substitute part?

A: The SPMWHT541MP5WATMS4 maintains significantly higher inventory levels (600,200 pcs vs. 1,040 pcs for the original part), indicating active production and reliable supply availability. This inventory differential reinforces the recommendation to transition to the substitute part for new production orders.