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KDS (Daishinku Corporation) MPN encoding patterns, crystal and oscillator decoding, and handler guidance. Use when working with KDS timing devices (DSX, DST, DSO, DSB series).
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SOC 職業分類に基づく
Use when refactoring, cleaning up, or enhancing the lib-electronic-components codebase. Provides guidance on architecture patterns, known issues, duplication hotspots, and recommended improvements.
Base skill for working with electronic components in this library. Use when adding new component types, manufacturer handlers, or working with MPN (Manufacturer Part Number) operations, BOM entries, or component classification.
Use this skill BEFORE creating a PR to ensure all documentation, skills, and learnings are updated. Critical for preserving institutional knowledge and preventing documentation drift.
Use when working with component similarity calculations - comparing MPNs, finding equivalent parts, implementing new similarity calculators, or understanding how component matching works.
Use when working with capacitor similarity calculations - comparing ceramic/electrolytic/film capacitor MPNs, understanding value/voltage/dielectric matching, or capacitor-specific similarity logic.
Use when working with connector similarity calculations - comparing connector MPNs, understanding pin count/pitch/family matching, or connector-specific similarity logic.
| name | kds |
| description | KDS (Daishinku Corporation) MPN encoding patterns, crystal and oscillator decoding, and handler guidance. Use when working with KDS timing devices (DSX, DST, DSO, DSB series). |
KDS (Daishinku Corporation) is a major Japanese manufacturer of frequency control products:
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[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[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[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-[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 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 |
| 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 |
| 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 |
| 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 |
KDS parts are compatible when:
| Original | Replacement | Notes |
|---|---|---|
| DSX321G | DSX321GA | AEC-Q200 upgrade |
| DSO321S | DSO321SDH | High stability upgrade |
| DSX530G | DSX530GA | Automotive upgrade |
| 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 |
| 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 |
| 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 |
| 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 |
// 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].*"
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 "";
}
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 "";
}
manufacturers/KDSHandler.javaCRYSTAL, OSCILLATOR, IC (for SAW filters)