Seoulsemi

Seoul Semiconductor Manufacturer Skill

Overview

Seoul Semiconductor is a South Korean LED manufacturer producing a wide range of LED products for lighting, automotive, and specialty applications. The company is known for innovative LED technologies including:

• Acrich - AC-driven LED modules (no external driver needed)
• SunLike - Human-centric lighting LEDs with natural spectrum
• Z-Power - High-power LEDs for general illumination
• WICOP - Wafer-Level Integrated Chip on PCB (no wire bonding)
• MJT - Multi-Junction Technology for high-voltage LEDs
• UV/IR LEDs - Specialty LEDs for sterilization, sensing

MPN Structure

Seoul Semiconductor MPNs vary by product family, but follow these general patterns:

Z-Power Series (High-Power LEDs)

Z5-M0-W0-00
│  │  │  │
│  │  │  └── Options/variant
│  │  └── W0 = White color code
│  └── M0 = Power variant (M0, M1, M2)
└── Z5 = Z-Power family, generation 5

Acrich Series (AC-Driven LED Modules)

SMJHA-3V1W1P0S0
│     │ │ │ │ │
│     │ │ │ │ └── Options
│     │ │ │ └── P0 = Power factor
│     │ │ └── W1 = Wattage
│     │ └── V1 = Voltage variant
│     └── 3 = Series number
└── SMJHA = Acrich module prefix

SunLike Series (Human-Centric LEDs)

SPHWHTL3D50YE3KPH
│   │   │ │ │ │ │
│   │   │ │ │ │ └── Options (PH=tape/reel)
│   │   │ │ │ └── KP = Package variant
│   │   │ │ └── E3 = Efficiency bin
│   │   │ └── Y = Color bin
│   │   └── 50 = CCT (5000K)
│   └── HTL3D = Series variant
└── SPH = SunLike prefix

Standard White LEDs (STW/STN Series)

STW9Q14C-W9
│  │    │ │
│  │    │ └── W9 = Color temperature bin
│  │    └── C = Variant
│  └── 9Q14 = Series identifier
└── STW = Standard White prefix (STN = Neutral)

UV LEDs (CUD Series)

CUD6GF1B
│  │││ │
│  │││ └── B = Bin/variant
│  ││└── 1 = Generation
│  │└── F = Package
│  └── 6G = Power/wavelength class
└── CUD = UV LED prefix

Product Family Prefixes

Package Codes

Standard SMD Packages

Technology-Specific Packages

Color Codes

Color Code Extraction

Seoul Semi uses various conventions for color in MPNs:

Series Extraction Rules

The handler extracts series based on the product family:

Supported Component Types

The handler supports:

Note: All patterns are registered under both LED and IC types to ensure proper pattern matching in the registry.

Handler Implementation Notes

Package Code Extraction Priority

The handler checks patterns in a specific order to avoid false positives:

// 1. Check technology-specific patterns FIRST (before embedded size codes)
if (Z_POWER_PATTERN.matches()) return "Ceramic" or "High-Power";
if (ACRICH_PATTERN.matches()) return "Module";
if (WICOP_PATTERN.matches()) return "CSP";
if (MJT_PATTERN.matches()) return "MJT";
if (UV_LED_PATTERN.matches()) return "UV";
if (IR_LED_PATTERN.matches()) return "IR";
if (P_SERIES_PATTERN.matches()) return "High-Power";
if (X_SERIES_PATTERN.matches()) return "High-Power";

// 2. Then check for embedded package sizes in SunLike/STW
if (SUNLIKE_PATTERN.matches() || STW_STN_PATTERN.matches()) {
    // Extract 4-digit size code like "3030", "5050"
    return PACKAGE_CODES.getOrDefault(size, "SMD");
}

// 3. Fallback: check for ANY embedded size code
for (sizeCode : ["3030", "3535", "5050", ...]) {
    if (mpn.contains(sizeCode)) return sizeCode;
}

Color Code Extraction Priority

Color extraction checks specific patterns before generic ones:

// 1. UV/IR first (based on prefix)
if (mpn.startsWith("CUD") || mpn.contains("UV")) return "UV";
if (mpn.startsWith("SFH") || mpn.contains("IR")) return "IR";

// 2. White variants BEFORE generic white
if (contains("-CW") || contains("CW-")) return "CW";  // Cool White
if (contains("-WW") || contains("WW-")) return "WW";  // Warm White
if (contains("-NW") || contains("NW-")) return "NW";  // Neutral White

// 3. Generic white LAST
if (contains("-W0") || contains("-W-") || contains("WHT")) return "W";

Replacement Detection

Two MPNs are considered official replacements if:

1. Same series
2. Same color (or at least one unknown)
3. Same package (or at least one unknown)

Example MPN Decoding

Z-Power LED

Z5-M0-W0-00
├── Series: Z5-M0
├── Package: Ceramic (Z5-M0 variant)
├── Color: W (White)
└── Technology: High-Power LED

Acrich AC Module

SMJHA-3V1W1P0S0
├── Series: Acrich
├── Package: Module
├── Color: (not specified in MPN)
└── Technology: AC-Driven

SunLike LED

SPHWHTL3D50YE3KPH
├── Series: SunLike
├── Package: SMD (default for SunLike)
├── Color: (encoded in spec fields)
└── Technology: SunLike (Human-Centric)

Standard White LED

STW9Q14C-W9
├── Series: STW9Q14C
├── Package: SMD (default)
├── Color: W (White, bin 9)
└── Technology: Standard White

UV LED

CUD6GF1B
├── Series: CUD6
├── Package: UV
├── Color: UV (Ultraviolet)
└── Technology: UV LED

Infrared LED

SFH4550
├── Series: SFH4
├── Package: IR
├── Color: IR (Infrared)
└── Technology: Infrared LED

Related Files

• Handler: manufacturers/SeoulSemiHandler.java
• Component types: ComponentType.LED, ComponentType.IC
• Similarity: /similarity-led skill for LED comparison logic

Learnings & Edge Cases

• Hyphen variations: Some MPNs have optional hyphens (e.g., SMJHA3V1W1P0S0 vs SMJHA-3V1W1P0S0). Patterns must handle both.
• Z-Power variants: Z5-M0, Z5-M1, Z5-M2 are distinct power grades in the same family. M0 is typically lower power.
• SunLike spectrum: SunLike LEDs are designed to match natural sunlight spectrum for human-centric lighting.
• WICOP technology: No wire bonding or phosphor layer on LED chip - leads to smaller form factor and better thermal performance.
• Acrich modules: Self-contained AC LED modules that can run directly from mains voltage without external drivers.
• CUD UV series: Numbers after CUD (6, 8) typically indicate wavelength range (e.g., CUD6 = UVC ~275nm).
• Color code ordering: When extracting colors, check specific variants (CW, WW, NW) before generic white (W) to avoid false matches.
• Package embedded in MPN: SunLike and STW series may have 4-digit package codes embedded (e.g., 3030, 5050). Extract with regex.
• IC registration: Patterns are also registered under ComponentType.IC to ensure proper pattern matching in the handler factory.