sumida

# Sumida Corporation Manufacturer Skill ## Overview Sumida Corporation is a leading manufacturer of magnetic components, specializing in: - **Power Inductors** - SMD and through-hole designs for DC-DC converters - **Drum Core Inductors** - High current applications - **Shielded Inductors** - EMI-sensitive designs - **Chip Inductors** - Compact surface mount applications - **Common Mode Chokes** - EMI/EMC filtering - **Edge-Wound Inductors** - High frequency applications ## MPN Structure Sumida MPNs follow this general structure: ``` [SERIES][SIZE][SUFFIX]-[VALUE][TOLERANCE][TERMINATION] | | | | | | | | | | | +-- Termination code (NC, MC, etc.) | | | | +-- Tolerance: M=+/-20%, N=+/-30%, J=+/-5% | | | +-- Inductance value (R-notation: 4R7 = 4.7uH) | | +-- Optional suffix (NP=Non-magnetic, etc.) | +-- Size code (series-dependent encoding) +-- Series prefix (CDRH, CDR, CDEP, CR, CLF, etc.) ``` ### Example Decoding ``` CDRH6D28NP-4R7NC | | | | | | | | | | | +-- NC = Non-magnetic terminals | | | | +-- 4R7 = 4.7uH inductance (R = decimal) | | | +-- NP = Non-magnetic core/shield | | +-- 28 = 2.8mm height | +-- 6D = 6mm x 6mm footprint +-- CDRH = SMD Power Inductor series CDR125NP-100MC | | | | | | | | | +-- MC = Magnetic terminals | | | +-- 100 = 10uH (EIA code: 10 x 10^0) | | +-- NP = Non-magnetic | +-- 125 = 12.5mm diameter drum +-- CDR = Drum Core Inductor series ``` --- ## Product Series ### SMD Power Inductors | Series | Type | Description | Typical Use | |--------|------|-------------|-------------| | CDRH | SMD Power | Standard SMD power inductor | DC-DC converters | | CDEP | Shielded SMD | Shielded power inductor | EMI-sensitive designs | | CDEF | High Efficiency | Low DCR, high efficiency | High-efficiency PSUs | | CLF | Low Profile | Thin power inductor | Height-constrained designs | ### Drum Core Inductors | Series | Type | Description | Typical Use | |--------|------|-------------|-------------| | CDR | Drum Core | High current drum inductor | High current applications | | RCH | High Current | Very high saturation current | Power supplies | | CEP | Edge-Wound | Edge-wound construction | High frequency | ### Chip Inductors | Series | Type | Description | Typical Use | |--------|------|-------------|-------------| | CR | Chip Inductor | Multilayer chip inductor | General SMD circuits | ### EMI Components | Series | Type | Description | Typical Use | |--------|------|-------------|-------------| | CDC | Common Mode Choke | EMI suppression | Power line filtering | --- ## Inductance Value Code Sumida uses two notation systems for inductance values: ### R-Notation (Primary) The "R" character represents the decimal point: | Code | Calculation | Value | |------|-------------|-------| | R47 | 0.47 | 0.47 uH | | 1R5 | 1.5 | 1.5 uH | | 4R7 | 4.7 | 4.7 uH | | 10R | 10.0 | 10 uH | | 22R | 22.0 | 22 uH | | 47R | 47.0 | 47 uH | ### EIA 3-Digit Code Standard EIA multiplier format (first two digits x 10^third digit): | Code | Calculation | Value | |------|-------------|-------| | 100 | 10 x 10^0 | 10 uH | | 220 | 22 x 10^0 | 22 uH | | 470 | 47 x 10^0 | 47 uH | | 101 | 10 x 10^1 | 100 uH | | 221 | 22 x 10^1 | 220 uH | | 102 | 10 x 10^2 | 1000 uH = 1 mH | --- ## Tolerance Codes | Code | Tolerance | |------|-----------| | J | +/- 5% | | K | +/- 10% | | M | +/- 20% | | N | +/- 30% | --- ## Termination Codes | Code | Description | |------|-------------| | NC | Non-magnetic terminals (tin-plated) | | MC | Magnetic terminals | | C | Standard terminals | --- ## Size Code Reference by Series ### CDRH Series Size Codes CDRH uses format `[L]D[H]` where L=length/width, D=delimiter, H=height: | Code | Dimensions (L x W x H) | Notes | |------|------------------------|-------| | 4D28 | 4.0mm x 4.0mm x 2.8mm | Compact | | 6D28 | 6.0mm x 6.0mm x 2.8mm | Standard | | 8D43 | 8.0mm x 8.0mm x 4.3mm | Higher current | | 10D43 | 10.0mm x 10.0mm x 4.3mm | High current | | 12D58 | 12.0mm x 12.0mm x 5.8mm | Very high current | Height decoding: `28` = 2.8mm, `43` = 4.3mm, `58` = 5.8mm ### CDR Series Size Codes CDR uses diameter encoding: | Code | Diameter | Notes | |------|----------|-------| | 74 | 7.4mm | Standard | | 104 | 10.4mm | Higher current | | 125 | 12.5mm | High current | | 127 | 12.7mm | Alternative 12.5mm | ### CDEP Series Size Codes CDEP uses format `[WW][H]` where WW=width, H=height: | Code | Dimensions (L x W x H) | Notes | |------|------------------------|-------| | 104 | 10.0mm x 10.0mm x 4.0mm | Standard | | 105 | 10.0mm x 10.0mm x 5.0mm | Taller version | | 126 | 12.0mm x 12.0mm x 6.0mm | Large footprint | ### CR Series Size Codes CR chip inductors use millimeter encoding: | Code | Size | EIA Equivalent | |------|------|----------------| | 16 | 1.6mm x 0.8mm | 0603 | | 21 | 2.1mm x 1.2mm | 0805 | | 32 | 3.2mm x 1.6mm | 1206 | ### CLF Series Size Codes CLF uses format `[LL][WW][H]` (5 digits): | Code | Dimensions (L x W x H) | Notes | |------|------------------------|-------| | 10040 | 10.0mm x 10.0mm x 4.0mm | Standard low profile | | 12060 | 12.0mm x 12.0mm x 6.0mm | Large low profile | --- ## Package Code Extraction The handler extracts and decodes size codes to human-readable dimensions: | MPN | Extracted Package | |-----|-------------------| | CDRH6D28NP-4R7NC | 6x6x2.8mm | | CDRH4D28NP-1R5NC | 4x4x2.8mm | | CDRH8D43NP-100MC | 8x8x4.3mm | | CDR74NP-100MC | 7.4mm | | CDR125NP-220MC | 12.5mm | | CDEP104NP-1R5MC | 10x10x4mm | | CDEP105NP-4R7MC | 10x10x5mm | | CR21-100JM | 2.1mm | | CLF10040-470MC | 10x10x4.0mm | --- ## Series Extraction The handler extracts the series prefix (without size code): | MPN | Extracted Series | |-----|------------------| | CDRH6D28NP-4R7NC | CDRH | | CDRH4D28NP-1R5NC | CDRH | | CDR125NP-100MC | CDR | | CDEP104NP-1R5MC | CDEP | | CDEF38NP-100MC | CDEF | | CR21-100JM | CR | | RCH110NP-1R0MC | RCH | | CEP105NP-4R7MC | CEP | | CDC2G2NP-100MC | CDC | | CLF10040-470MC | CLF | ### Series Extraction Order (Important) Due to prefix overlap, series must be checked in this order: 1. `CDRH` (before CDR) 2. `CDEP` (before CDE) 3. `CDEF` (before CDE) 4. `CDC` 5. `CDR` (generic CD prefix) 6. `CLF` 7. `CR` 8. `RCH` 9. `CEP` --- ## Supported Component Types The SumidaHandler supports: - `ComponentType.INDUCTOR` - Base inductor type Note: Sumida does not have a manufacturer-specific inductor type (e.g., `INDUCTOR_SUMIDA`) in this codebase. --- ## Example MPNs with Full Decoding ### CDRH6D28NP-4R7NC ``` Series: CDRH (SMD Power Inductor) Size: 6D28 (6.0mm x 6.0mm x 2.8mm) Suffix: NP = Non-magnetic core Inductance: 4R7 = 4.7 uH Tolerance: N = +/- 30% Termination: C = Standard Full Series: CDRH Package: 6x6x2.8mm ``` ### CDR125NP-100MC ``` Series: CDR (Drum Core Inductor) Size: 125 (12.5mm diameter) Suffix: NP = Non-magnetic core Inductance: 100 = 10 x 10^0 = 10 uH Tolerance: M = +/- 20% Termination: C = Standard Full Series: CDR Package: 12.5mm ``` ### CDEP104NP-1R5MC ``` Series: CDEP (Shielded SMD Power Inductor) Size: 104 (10.0mm x 10.0mm x 4.0mm) Suffix: NP = Non-magnetic core Inductance: 1R5 = 1.5 uH Tolerance: M = +/- 20% Termination: C = Standard Full Series: CDEP Package: 10x10x4mm ``` ### CR21-100JM ``` Series: CR (Chip Inductor) Size: 21 (2.1mm x 1.2mm, ~0805) Inductance: 100 = 10 uH Tolerance: J = +/- 5% Suffix: M = (variant) Full Series: CR Package: 2.1mm ``` ### CLF10040-470MC ``` Series: CLF (Low Profile Power Inductor) Size: 10040 (10.0mm x 10.0mm x 4.0mm) Inductance: 470 = 47 x 10^0 = 47 uH Tolerance: M = +/- 20% Termination: C = Standard Full Series: CLF Package: 10x10x4.0mm ``` ### CDC2G2NP-100MC ``` Series: CDC (Common Mode Choke) Size: 2G2 (variant designation) Suffix: NP = Non-magnetic core Inductance: 100 = 10 uH Tolerance: M = +/- 20% Termination: C = Standard Full Series: CDC Package: 2G2 ``` --- ## Handler Implementation Notes ### Pattern Matching ```java // Sumida patterns have series-specific structures: // CDRH series: CDRH + size code (nDnn format) + optional suffix + hyphen + value