SPMWHT541MD5WAVMS1 LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAVMS1 is a Samsung Semiconductor LM561B series warm white LED (3000K) designed for surface mount lighting applications. This component features a 5630 package format with 4-SMD configuration and exposed pad construction. The part is classified as "Not For New Designs," indicating it has reached end-of-life status in Samsung's product portfolio. For ongoing production requirements or new design implementations, equivalent substitute parts with active product status are available within the same LM561B series family.

Substiute Parts

SPMWHT541MD5WAVMS1

Samsung Semiconductor, Inc.In Stock: 1061SPMWHT541MD5WAVMS1 Datasheet

Current PartRFQ

SPMWHT541MP7WAVMS0

Samsung Semiconductor, Inc.In Stock: 34087SPMWHT541MP7WAVMS0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAVMS1 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Color Temperature: 3000K warm white
• Package Format: 5630 (4-SMD, Surface Mount)
• Physical Dimensions: 5.00mm x 3.00mm footprint
• Forward Voltage: 2.95V nominal
• Test Current: 65mA
• Viewing Angle: 120°
• Mounting Type: Surface Mount

Acceptable Variation Parameters:

• Luminous Flux tolerance range: 23lm to 29lm (specification allows ±3lm from nominal 26lm)
• Maximum Current rating: Equal to or greater than 150mA
• Thermal Resistance: Equal to or lower than 16°C/W
• CRI: Equal to or greater than 80
• Height variation: Within PCB assembly clearance limits

The SPMWHT541MP7WAVMS0 (LM561B Plus variant) qualifies as a direct substitute based on these parameters. Both parts share identical color temperature, package geometry, electrical operating point, and mounting characteristics. The substitute part offers enhanced specifications in several non-critical areas while maintaining full compatibility with existing circuit designs and PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

For Existing Production (SPMWHT541MD5WAVMS1):

The SPMWHT541MD5WAVMS1 remains functionally suitable for ongoing production runs where existing inventory is available. Current stock of 1032 units supports near-term manufacturing requirements. However, the "Not For New Designs" status indicates Samsung has discontinued active support and future availability cannot be guaranteed. Long-term supply chain planning should account for potential stock depletion.

For New Design Implementation:

The SPMWHT541MP7WAVMS0 is the recommended substitute for all new product development. This part carries "Active" product status with substantially higher inventory (33,985 units), ensuring reliable long-term supply. The substitute meets all electrical and mechanical compatibility requirements while offering measurable improvements:

• Enhanced CRI rating (90 vs. 80) provides superior color rendering for applications requiring higher visual quality
• Increased maximum current rating (180mA vs. 150mA) provides additional thermal headroom and operational margin
• Improved thermal resistance (15°C/W vs. 16°C/W) supports higher ambient temperature operation
• Lower profile height (0.80mm vs. 0.90mm) accommodates tighter PCB assembly constraints
• ROHS3 compliance exceeds RoHS baseline requirements

Compliance Considerations:

Both parts maintain full RoHS compliance and identical MSL ratings (2A, 4 Weeks). No additional handling or storage protocol changes are required when transitioning from the main part to the substitute. Moisture sensitivity management procedures remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP7WAVMS0 be used as a direct replacement in existing circuit designs?

A: Yes. The substitute part maintains identical forward voltage (2.95V), test current (65mA), color temperature (3000K), and package footprint (5630, 5.00mm x 3.00mm). No circuit modifications or PCB layout changes are required. The part is electrically and mechanically interchangeable.

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

A: Both configurations use the same 5630 package footprint and are mechanically compatible. The exposed pad variant (main part) includes an additional thermal pad for enhanced heat dissipation. The flat leads variant (substitute) achieves equivalent thermal performance through improved package design (15°C/W vs. 16°C/W thermal resistance). PCB pad patterns remain identical.

Q: Why does the substitute part have a wider luminous flux tolerance (23-29lm vs. 25-27lm)?

A: The LM561B Plus series (substitute) employs enhanced manufacturing processes that maintain tighter average performance (26lm nominal) while allowing broader specification limits. This reflects improved process control and does not indicate reduced quality. The nominal 26lm output remains identical to the main part.

Q: Is the lower height of the substitute part (0.80mm vs. 0.90mm) a concern for PCB assembly?

A: No. The lower profile is advantageous for space-constrained applications and provides additional clearance margin. Standard pick-and-place equipment and reflow processes accommodate this variation without adjustment. Verify PCB design clearance specifications if height is a critical constraint.

Q: What is the significance of ROHS3 compliance versus RoHS compliance?

A: ROHS3 represents the current regulatory standard with enhanced restrictions on hazardous substances. The substitute part's ROHS3 certification exceeds baseline RoHS requirements and ensures compliance with current and anticipated regulatory frameworks. Both parts are suitable for regulated markets.

Q: Can inventory of SPMWHT541MD5WAVMS1 be mixed with SPMWHT541MP7WAVMS0 in production?

A: Yes. Both parts are electrically and mechanically identical at the circuit level. Mixed inventory can be used interchangeably without affecting product performance, reliability, or compliance. Component-level traceability records should document which part number was used in specific production batches if required by quality procedures.

Q: What is the recommended transition timeline from the main part to the substitute?

A: Transition timing depends on existing inventory levels and production volume. With 1,032 units of the main part in stock and 33,985 units of the substitute available, immediate transition is feasible. Recommend completing qualification testing of the substitute part in your specific application before full production switchover.