SPMWH1228FD7WAVKS4 Equivalent & Substitute Parts

Part Overview

The SPMWH1228FD7WAVKS4 is a Samsung Semiconductor LM281B warm white LED in 2835 metric package (1113 case code) designed for surface mount applications. This component operates at 3000K color temperature with 150mA test current and delivers 59 lumens at 25°C. The part is designated as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support existing production requirements.

Substiute Parts

SPMWH1228FD7WAVKS4

Samsung Semiconductor, Inc.In Stock: 794SPMWH1228FD7WAVKS4 Datasheet

Current PartRFQ

SPMWH1228FD7WAVKSE

Samsung Semiconductor, Inc.In Stock: 793SPMWH1228FD7WAVKSE Datasheet

DirectRFQ

SPMWH1228FD7WAV0S4

Samsung Semiconductor, Inc.In Stock: 40960SPMWH1228FD7WAV0S4 Datasheet

Parametric EquivalentRFQ

SPMWH1228FD7WAVMS4

Samsung Semiconductor, Inc.In Stock: 36935SPMWH1228FD7WAVMS4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWH1228FD7WAVKS4 is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Color: White, Warm (3000K)
• Package / Case: 1113 (2835 Metric)
• Forward Voltage (Vf): 3.1V nominal
• Test Current: 150mA
• Maximum Current: 160mA
• Viewing Angle: 120°
• Mounting Type: Surface Mount
• RoHS Compliance: Required
• MSL Rating: 2A (4 Weeks)

Substitution Categories:

Direct Manufacturer Substitute (Series Upgrade): SPMWH1228FD7WAVKSE represents a direct upgrade path. This part maintains identical electrical and mechanical specifications while advancing to the LM281B+ series with active product status. Flux output remains within specification (57–59 lm range vs. 57–60 lm), and all dimensional and compliance parameters are preserved.

Parametric Equivalents (Same Series, Different Packaging Variants): SPMWH1228FD7WAV0S4 and SPMWH1228FD7WAVMS4 are parametric equivalents within the LM281B series. These parts deliver identical electrical performance (59 lm @ 25°C, 127 lm/W, 3.1V, 150mA) and mechanical compatibility. Differences exist only in packaging tape configuration and reel specifications, which do not affect component functionality or circuit performance.

Parameter Comparison

Engineering Selection Recommendations

For End-of-Life Replacement (Recommended Path): SPMWH1228FD7WAVKSE is the preferred substitute. This part carries Active product status, ensuring long-term supply availability and manufacturing support. The LM281B+ series represents Samsung's current generation warm white 2835 LED technology. Although thermal resistance increases from 17°C/W to 25°C/W and luminous efficacy decreases from 127 lm/W to 123 lm/W, flux output remains within the original specification range (55–59 lm vs. 57–60 lm). These minor variations are within acceptable engineering tolerances for most lighting applications.

For Direct Parametric Equivalence (Interim Supply): SPMWH1228FD7WAV0S4 and SPMWH1228FD7WAVMS4 provide identical electrical and optical performance to the original part. Both maintain 127 lm/W efficiency, 59 lm flux output, and 17°C/W thermal resistance. These parts differ only in tape and reel packaging configuration. Both carry "Not For New Designs" status, indicating limited future availability. Use these substitutes only for short-term supply continuity or existing inventory management.

Compliance Verification: All substitute parts maintain RoHS compliance and 2A MSL rating, ensuring compatibility with standard surface mount assembly processes and environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD7WAVKSE replace SPMWH1228FD7WAVKS4 in existing designs?

A: Yes. SPMWH1228FD7WAVKSE is a direct substitute with identical package dimensions (3.50 × 2.80 × 0.75 mm), electrical ratings (3.1V, 150mA), and optical properties (3000K, 90 CRI, 120° viewing angle). The flux specification range (55–59 lm) overlaps with the original (57–60 lm). The primary difference is series advancement (LM281B+ vs. LM281B) and thermal resistance increase (25°C/W vs. 17°C/W). Thermal performance should be evaluated in high-power or thermally constrained applications.

Q: What is the difference between SPMWH1228FD7WAV0S4 and SPMWH1228FD7WAVMS4?

A: Both parts are parametric equivalents with identical electrical and optical specifications. The difference lies in packaging tape configuration and reel specifications, which affect handling and assembly logistics but not component performance. Selection between these two depends on equipment compatibility and supply chain requirements.

Q: Why does SPMWH1228FD7WAVKSE have higher thermal resistance?

A: The LM281B+ series incorporates design improvements that result in 25°C/W thermal resistance compared to 17°C/W in the LM281B series. This difference reflects manufacturing process evolution. In applications with adequate thermal management, this increase does not impact performance. Verify thermal design margins in high-current or high-ambient-temperature applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. SPMWH1228FD7WAVKSE, SPMWH1228FD7WAV0S4, and SPMWH1228FD7WAVMS4 are all RoHS compliant with 2A MSL rating, meeting standard environmental and moisture sensitivity requirements for surface mount assembly.

Q: Which substitute should be used for new production?

A: SPMWH1228FD7WAVKSE is the recommended choice for new production. It carries Active product status, ensuring manufacturing continuity and long-term supply availability. The LM281B+ series represents current Samsung technology for warm white 2835 LEDs.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. All substitute parts share identical package dimensions, footprint, and mounting requirements (Surface Mount, 1113 case code). No PCB redesign or assembly process modification is required for substitution.