微信扫一扫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:
- Same base series (DSX vs DSX, DST vs DST)
- Same package dimensions (321 matches 321)
- 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
// 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
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
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)