kds

# KDS (Daishinku Corporation) Manufacturer Skill ## Overview KDS (Daishinku Corporation) is a major Japanese manufacturer of frequency control products: - **DSX series**: SMD crystals - **DST series**: Tuning fork crystals (32.768kHz typical) - **DSO series**: Clock oscillators - **DSB series**: SAW filters and resonators - **1N series**: Through-hole crystal units - **DX/SM series**: Standard and surface mount crystals --- ## MPN Structure ### DSX Series (SMD Crystals) ``` DSX[SIZE][PACKAGE][OPTIONS]-[FREQUENCY] | | | | | | | | | +-- Optional frequency suffix | | | +-- GA = AEC-Q200, G = standard ceramic | | +-- Package suffix | +-- 3-digit size code (321 = 3.2x1.3mm) +-- DSX = SMD crystal series Example: DSX321G-12.000M | | || | | | || +-- 12 MHz frequency | | |+-- (SMD ceramic) | | +-- G = SMD ceramic package | +-- 321 = 3.2x1.3mm +-- DSX = SMD crystal Example: DSX530GA | | || | | |+-- A = AEC-Q200 automotive grade | | +-- G = SMD ceramic | +-- 530 = 5.0x3.2mm +-- DSX = SMD crystal ``` ### DST Series (Tuning Fork Crystals) ``` DST[SIZE][PACKAGE] | | | | | +-- S = SMD, other variants | +-- 3-digit size code (310 = 3.1x1.5mm) +-- DST = Tuning fork crystal series Example: DST310S | | | | | +-- S = SMD package | +-- 310 = 3.1x1.5mm +-- DST = Tuning fork (32.768kHz typical) ``` ### DSO Series (Clock Oscillators) ``` DSO[SIZE][PACKAGE][OPTIONS] | | | | | | | +-- SDH = high stability, R = tape reel | | +-- S = SMD | +-- 3-digit size code +-- DSO = Clock oscillator series Example: DSO321SR | | || | | |+-- R = Tape and reel | | +-- S = SMD package | +-- 321 = 3.2x2.5mm +-- DSO = Clock oscillator ``` ### DSB Series (SAW Filters/Resonators) ``` DSB[SIZE][PACKAGE][OPTIONS] | | | | | | | +-- SDA = automotive, other options | | +-- S = SMD | +-- 3-digit size code +-- DSB = SAW filter/resonator Example: DSB321SDA | | || | | |+-- A = AEC-Q200 automotive | | +-- SD = SMD automotive | +-- 321 = 3.2x1.3mm +-- DSB = SAW device ``` ### 1N Series (Through-Hole Crystals) ``` 1N-[FREQUENCY] | | | +-- Frequency in MHz (26.000 = 26 MHz) +-- 1N = Through-hole crystal unit Example: 1N-26.000 | | | +-- 26.000 MHz +-- 1N series, HC-49U package ``` --- ## Size Codes ### DSX Series (SMD Crystals) | Size Code | Dimensions | Common Frequencies | |-----------|------------|-------------------| | 211 | 2.0x1.2mm | 16-50 MHz | | 221 | 2.0x1.2mm | 16-50 MHz | | 321 | 3.2x1.3mm | 8-50 MHz | | 320 | 3.2x2.0mm | 8-40 MHz | | 530 | 5.0x3.2mm | 4-50 MHz | | 531 | 5.0x3.2mm | 4-50 MHz | | 750 | 7.0x5.0mm | 1-40 MHz | | 840 | 8.0x4.5mm | 1-25 MHz | | 860 | 8.6x3.7mm | 1-25 MHz | ### DST Series (Tuning Fork) | Size Code | Dimensions | Typical Frequency | |-----------|------------|-------------------| | 210 | 2.0x1.2mm | 32.768 kHz | | 310 | 3.1x1.5mm | 32.768 kHz | | 410 | 4.1x1.5mm | 32.768 kHz | | 520 | 5.0x2.0mm | 32.768 kHz | ### DSO Series (Oscillators) | Size Code | Dimensions | Output Type | |-----------|------------|-------------| | 211 | 2.0x1.6mm | CMOS | | 221 | 2.0x1.6mm | CMOS | | 321 | 3.2x2.5mm | CMOS | | 531 | 5.0x3.2mm | CMOS | | 750 | 7.0x5.0mm | CMOS/LVDS | --- ## Package Suffix Codes | Suffix | Meaning | Notes | |--------|---------|-------| | G | SMD ceramic | Standard ceramic package | | GA | SMD ceramic AEC-Q200 | Automotive qualified | | S | SMD | General SMD | | SR | SMD tape reel | Tape and reel packaging | | R | Tape reel | Tape and reel (any package) | | SDH | SMD high stability | Enhanced frequency stability | | SDA | SMD automotive | AEC-Q200 qualified | --- ## Replacement Compatibility KDS parts are compatible when: 1. **Same base series** (DSX vs DSX, DST vs DST) 2. **Same package dimensions** (321 matches 321) 3. **Same or higher grade** (AEC-Q200 can replace standard) ### Upgrade Paths | Original | Replacement | Notes | |----------|-------------|-------| | DSX321G | DSX321GA | AEC-Q200 upgrade | | DSO321S | DSO321SDH | High stability upgrade | | DSX530G | DSX530GA | Automotive upgrade | --- ## Common Part Numbers ### DSX SMD Crystals | Part Number | Size | Frequency | Grade | |-------------|------|-----------|-------| | DSX321G | 3.2x1.3mm | Various | Standard | | DSX321GA | 3.2x1.3mm | Various | AEC-Q200 | | DSX530G | 5.0x3.2mm | Various | Standard | | DSX530GA | 5.0x3.2mm | Various | AEC-Q200 | | DSX840GA | 8.0x4.5mm | Low freq | AEC-Q200 | ### DST Tuning Fork Crystals | Part Number | Size | Frequency | Notes | |-------------|------|-----------|-------| | DST310S | 3.1x1.5mm | 32.768 kHz | Standard | | DST410S | 4.1x1.5mm | 32.768 kHz | Standard | | DST520S | 5.0x2.0mm | 32.768 kHz | Large | ### DSO Clock Oscillators | Part Number | Size | Output | Notes | |-------------|------|--------|-------| | DSO321SR | 3.2x2.5mm | CMOS | Tape/reel | | DSO531SDH | 5.0x3.2mm | CMOS | High stability | | DSO750S | 7.0x5.0mm | CMOS | Large | ### 1N Through-Hole Crystals | Part Number | Frequency | Package | |-------------|-----------|---------| | 1N-8.000 | 8 MHz | HC-49U | | 1N-12.000 | 12 MHz | HC-49U | | 1N-16.000 | 16 MHz | HC-49U | | 1N-26.000 | 26 MHz | HC-49U | --- ## Handler Implementation Notes ### Pattern Matching ```java // DSX series - SMD crystals "^DSX[0-9].*" "^DSX[0-9]{3}G.*" // With package suffix // DST series - Tuning fork "^DST[0-9].*" // DSO series - Oscillators "^DSO[0-9].*" "^DSO[0-9]{3}S.*" // SMD variant // DSB series - SAW devices "^DSB[0-9].*" // 1N series - Through-hole "^1N-[0-9].*" "^1N[0-9].*" ``` ### Package Code Extraction ```java String extractPackageCode(String mpn) { String upperMpn = mpn.toUpperCase(); // DSX series: DSX321G -> 3.2x1.3mm if (upperMpn.startsWith("DSX")) { String sizeCode = upperMpn.substring(3, 6); // e.g., "321" String packageSuffix = ""; int idx = 6; while (idx < upperMpn.length() && Character.isLetter(upperMpn.charAt(idx))) { idx++; } packageSuffix = upperMpn.substring(6, idx); // e.g., "G", "GA" return mapSizeCodeToPackage(sizeCode, packageSuffix); } // 1N series: always HC-49U if (upperMpn.startsWith("1N")) { return "HC-49U"; } return ""; } ``` ### Frequency Extraction ```java String extractFrequencyCode(String mpn) { String upperMpn = mpn.toUpperCase(); // 1N series: 1N-26.000 -> 26.000 if (upperMpn.startsWith("1N-")) { return upperMpn.substring(3); // Everything after "1N-" } // DSX/DST/DSO: look for frequency suffix after last dash int lastDash = upperMpn.lastIndexOf('-'); if (lastDash >= 0 && lastDash < upperMpn.length() - 1) { String freqPart = upperMpn.substring(lastDash + 1); if (freqPart.matches(".*\\d.*")) { return freqPart; } } return ""; } ``` --- ## Related Files - Handler: `manufacturers/KDSHandler.java` - Component types: `CRYSTAL`, `OSCILLATOR`, `IC` (for SAW filters) - No manufacturer-specific types defined --- ## Learnings & Edge Cases - **DST always 32.768kHz**: The DST (tuning fork) series is almost exclusively for 32.768 kHz RTC crystals - **1N frequency in MPN**: The 1N series explicitly includes frequency in the part number (1N-26.000) - **GA vs G**: GA suffix indicates AEC-Q200 automotive qualification, can replace G but not vice versa - **SDH high stability**: DSO oscillators with SDH suffix have enhanced frequency stability, suitable for precision applications - **SAW devices (DSB)**: Registered under IC type as they perform signal filtering, not simple oscillation - **Size code interpretation**: First 2 digits = length in 0.1mm, third digit = width in 0.1mm (e.g., 321 = 3.2x1.3mm, but varies by series) <!-- Add new learnings above this line -->