chilisin

name	chilisin
description	Chilisin Electronics inductor MPN encoding patterns, value decoding, and handler guidance. Use when working with Chilisin inductors or ChilisinHandler.

Chilisin Electronics Manufacturer Skill

MPN Structure

Chilisin MPNs follow this structure:

[SERIES][SIZE][HEIGHT][TYPE]-[VALUE][TOLERANCE]-[PACK]
   |      |     |       |      |        |         |
   |      |     |       |      |        |         +-- Packaging code
   |      |     |       |      |        +-- M=20%, K=10%, J=5%
   |      |     |       |      +-- Inductance code
   |      |     |       +-- Type/shield code
   |      |     +-- Height code (SQC only)
   |      +-- 4-digit size code
   +-- Series (SQC, MHCI, MHCC, CS)

Example Decoding

SQC453226T-100M-N
|  |  | |  |  | |
|  |  | |  |  | +-- Packaging (N=Tape/Reel)
|  |  | |  |  +-- Tolerance (M=+/-20%)
|  |  | |  +-- Inductance (100 = 10uH)
|  |  | +-- Type code (T=Shield type)
|  |  +-- Height (26 = 2.6mm)
|  +-- Size (4532 = 4.5mm x 3.2mm)
+-- SQC = Chip Inductor series

MHCI0504-1R0M-R8
|   |    |  | ||
|   |    |  | |+-- Reel option (8)
|   |    |  | +-- Reel marker (R)
|   |    |  +-- Tolerance (M=+/-20%)
|   |    +-- Inductance (1R0 = 1.0uH)
|   +-- Size (0504 = 5.0mm x 4.0mm)
+-- MHCI = Power Inductor series

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Series Reference

SQC - Chip Inductors

Feature	Description
Type	Multilayer chip inductor
Pattern	^SQC[0-9]{4}[0-9]{2}[A-Z]?-?[0-9R]+[A-Z]-?.*
Unique	Includes height code after size

MHCI - Power Inductors

Feature	Description
Type	Power inductor
Pattern	^MHCI[0-9]{4}-?[0-9R]+[A-Z]-?.*
Application	High current, low DCR

MHCC - Coupled Inductors

Feature	Description
Type	Coupled/dual winding inductor
Pattern	^MHCC[0-9]{4}-?[0-9R]+?[A-Z]?-?.*
Application	DC-DC converters

CS - Ferrite Chip Inductors

Feature	Description
Type	Ferrite chip inductor
Pattern	^CS[0-9]{4}-?[0-9R]+?[A-Z]?-?.*
Application	EMI filtering

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Inductance Encoding

Chilisin uses standard EIA encoding:

R-Notation (Decimal Point)

Code	Value	Notes
R10	0.10uH (100nH)	R at start
R22	0.22uH (220nH)	R at start
R47	0.47uH (470nH)	R at start
1R0	1.0uH	R in middle
2R2	2.2uH	R in middle
4R7	4.7uH	R in middle

3-Digit Multiplier Code

Code	Value	Calculation
100	10uH	10 x 10^0
101	100uH	10 x 10^1
102	1mH	10 x 10^2
220	22uH	22 x 10^0
221	220uH	22 x 10^1
470	47uH	47 x 10^0
471	470uH	47 x 10^1

Decoding Algorithm

// R at start (R10, R22, R47)
if (code.startsWith("R") && !code.substring(1).contains("R")) {
    String digits = code.substring(1);
    double value = Double.parseDouble("0." + digits);
    return formatInductance(value);  // Returns "100nH" etc.
}

// R in middle (1R0, 2R2)
if (code.contains("R")) {
    String normalized = code.replace("R", ".");
    double value = Double.parseDouble(normalized);
    return formatInductance(value);  // Returns "1.0uH" etc.
}

// 3-digit code
if (code.length() >= 3 && code.matches("\\d{3}")) {
    int mantissa = Integer.parseInt(code.substring(0, 2));
    int exponent = Integer.parseInt(code.substring(2, 3));
    double microhenries = mantissa * Math.pow(10, exponent);
    return formatInductance(microhenries);
}

---

Package Size Codes

Size Code to Dimensions

Code	Dimensions	Notes
0504	5.0 x 4.0mm	Power inductor
0403	4.0 x 3.0mm	Power inductor
0302	3.0 x 2.0mm	Power inductor
4532	4.5 x 3.2mm	Chip inductor
3225	3.2 x 2.5mm	Chip inductor
2520	2.5 x 2.0mm	Chip inductor
2016	2.0 x 1.6mm	Chip inductor
1608	1.6 x 0.8mm	Chip inductor
1005	1.0 x 0.5mm	Chip inductor
0603	0603 imperial	Small chip
0402	0402 imperial	Very small
0201	0201 imperial	Ultra small

---

Tolerance Codes

Code	Tolerance
J	+/- 5%
K	+/- 10%
M	+/- 20%

---

Handler Implementation Notes

Series Extraction

// Returns series + size as the full identifier
// SQC453226T-100M-N -> "SQC4532"
// MHCI0504-1R0M-R8 -> "MHCI0504"

Matcher m = SQC_PATTERN.matcher(upperMpn);
if (m.matches()) {
    return m.group(1) + m.group(2);  // SQC + size
}

m = MHCI_PATTERN.matcher(upperMpn);
if (m.matches()) {
    return m.group(1) + m.group(2);  // MHCI + size
}
// Similar for MHCC, CS

Package Code Extraction

// Extract size code and map to dimensions
String sizeCode = extractSizeCode(mpn);
if (SIZE_CODE_MAP.containsKey(sizeCode)) {
    return SIZE_CODE_MAP.get(sizeCode);  // e.g., "4.5x3.2mm"
}
return sizeCode;  // Return raw code if no mapping

SQC Height Code

SQC series uniquely includes a 2-digit height code:

// SQC453226T -> 4532 (size) + 26 (height = 2.6mm) + T (type)
Matcher m = SQC_PATTERN.matcher(mpn);
if (m.matches()) {
    String size = m.group(2);    // "4532"
    String height = m.group(3);  // "26" = 2.6mm
    String type = m.group(4);    // "T"
}

---

Pattern Details

SQC Pattern

Pattern.compile(
    "^(SQC)(\\d{4})(\\d{2})([A-Z])?[-]?([0-9R]+)([A-Z])[-]?([A-Z0-9]*)$"
);
// Groups: (1)series (2)size (3)height (4)type (5)value (6)tolerance (7)packaging

MHCI Pattern

Pattern.compile(
    "^(MHCI)(\\d{4})[-]?([0-9R]+)([A-Z])[-]?([A-Z0-9]*)$"
);
// Groups: (1)series (2)size (3)value (4)tolerance (5)packaging

MHCC Pattern

Pattern.compile(
    "^(MHCC)(\\d{4})[-]?([0-9R]+)?([A-Z])?[-]?([A-Z0-9]*)$"
);
// Optional value for coupled inductors

CS Pattern

Pattern.compile(
    "^(CS)(\\d{4})[-]?([0-9R]+)?([A-Z])?[-]?([A-Z0-9]*)$"
);
// CS has only 2-letter prefix

---

Component Types

Chilisin products map to:

• INDUCTOR - All inductor products
• IC - Also registered for pattern matching compatibility

---

Common Part Numbers

MPN	Description
SQC453226T-100M-N	10uH chip inductor, 4.5x3.2mm, 2.6mm height
MHCI0504-1R0M-R8	1.0uH power inductor, 5.0x4.0mm
MHCC0504-2R2M	2.2uH coupled inductor, 5.0x4.0mm
CS0402-R10M	0.1uH ferrite chip, 0402

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Related Files

• Handler: manufacturers/ChilisinHandler.java
• Supported types: INDUCTOR, IC
• No manufacturer-specific ComponentType enum entries

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Learnings & Edge Cases

• SQC height code: Unique to SQC series. The 2 digits after size encode height in 0.1mm units (26 = 2.6mm).
• CS prefix is short: Only 2 letters (CS), unlike others with 3-4 letters (SQC, MHCI, MHCC).
• Dashes are optional: MPNs may or may not include dashes between fields. Patterns must handle both.
• MHCC value optional: Coupled inductors may not include a value code in the MPN.
• R at start vs middle: R10 = 0.10uH, 1R0 = 1.0uH. Different parsing logic needed.
• Package code returns dimensions: Unlike other handlers, Chilisin handler returns "4.5x3.2mm" format, not imperial code.