Coilcraft MPN encoding patterns, inductance value decoding, and handler guidance. Use when working with Coilcraft inductors, transformers, or RF components.
Coilcraft is a leading manufacturer of magnetic components, specializing in:
Coilcraft MPNs follow this general structure:
[SERIES][SIZE][-][VALUE][TOLERANCE][PACKAGING]
| | | | | |
| | | | | +-- E=Embossed tape, B=Bulk
| | | | +-- M=+/-20%, L=+/-15%, K=+/-10%
| | | +-- 3-digit inductance code (or Rxx for sub-uH)
| | +-- Optional hyphen separator
| +-- 4-digit size code (e.g., 4020 = 4.0mm x 2.0mm)
+-- Series prefix (XAL, XEL, XFL, SER, LPS, MSS, DO, MSD, SLC, SLR)
XAL4020-222ME
| | | ||
| | | |+-- E = Embossed tape packaging
| | | +-- M = +/-20% tolerance
| | +-- 222 = 2.2uH (see value code section)
| +-- 4020 = 4.0mm x 2.0mm footprint
+-- XAL = Shielded power inductor series
LPS3015-103MLB
| | | |||
| | | ||+-- B = Bulk packaging
| | | |+-- L = +/-15% tolerance
| | | +-- M = +/-20% (sometimes double suffix for different specs)
| | +-- 103 = 10uH
| +-- 3015 = 3.0mm x 1.5mm footprint
+-- LPS = Low Profile Shielded series
| Series | Type | Description | Typical Use |
|---|---|---|---|
| XAL | Shielded Power | High current, low DCR | DC-DC converters |
| XAT | Shielded Power | XAL variant | Point-of-load regulators |
| XEL | Shielded Low DCR | Ultra-low DC resistance | High efficiency supplies |
| XFL | Low Profile | Thin shielded inductors | Height-constrained designs |
| SER | High Efficiency | Optimized for efficiency | High-frequency switching |
| LPS | Low Profile Shielded | Compact shielded | Mobile devices |
| MSS | Magnetically Shielded | Fully shielded | EMI-sensitive applications |
| Series | Type | Description | Typical Use |
|---|---|---|---|
| DO | Drum Core | Unshielded, high current | Cost-sensitive designs |
| MSD | Mid-Size Drum | Medium current | General purpose |
| Series | Type | Description | Typical Use |
|---|---|---|---|
| SLC | High-Q Chip | Ceramic chip, high Q | RF matching |
| SLR | High-Q Chip RF | RF-optimized | Wireless applications |
| 0402HP | High Performance | 0402 size, precision | Compact RF circuits |
| 0603HP | High Performance | 0603 size, precision | RF filter circuits |
Coilcraft uses a 3-digit code for inductance values:
[D1][D2][M]
| | |
| | +-- Multiplier (10^M in nanohenries)
| +-- Second significant digit
+-- First significant digit
Value (nH) = D1D2 x 10^M
Value (uH) = (D1D2 x 10^M) / 1000
| Code | Calculation | Value |
|---|---|---|
| 100 | 10 x 10^0 nH | 10 nH = 0.01 uH |
| 101 | 10 x 10^1 nH | 100 nH = 0.1 uH |
| 102 | 10 x 10^2 nH | 1000 nH = 1.0 uH |
| 222 | 22 x 10^2 nH | 2200 nH = 2.2 uH |
| 472 | 47 x 10^2 nH | 4700 nH = 4.7 uH |
| 103 | 10 x 10^3 nH | 10000 nH = 10 uH |
| 334 | 33 x 10^4 nH | 330000 nH = 330 uH |
For values less than 1 uH, the "R" notation indicates decimal placement:
| Code | Value |
|---|---|
| R10 | 0.10 uH |
| R22 | 0.22 uH |
| R33 | 0.33 uH |
| R47 | 0.47 uH |
| R68 | 0.68 uH |
| Code | Tolerance |
|---|---|
| K | +/- 10% |
| L | +/- 15% |
| M | +/- 20% |
| Code | Description |
|---|---|
| E | Embossed tape (pick-and-place ready) |
| B | Bulk packaging |
| R | Tape and reel (sometimes used instead of E) |
The 4-digit size code encodes physical dimensions:
XXYY
||++-- Height in 0.1mm (YY x 0.1mm)
++---- Length/Width in 0.1mm (XX x 0.1mm)
| Code | Dimensions (L x W x H) | Notes |
|---|---|---|
| 2006 | 2.0mm x 2.0mm x 0.6mm | Ultra-low profile |
| 3012 | 3.0mm x 3.0mm x 1.2mm | Low profile |
| 3015 | 3.0mm x 3.0mm x 1.5mm | Low profile |
| 4018 | 4.0mm x 4.0mm x 1.8mm | Standard |
| 4020 | 4.0mm x 4.0mm x 2.0mm | Standard |
| 4030 | 4.0mm x 4.0mm x 3.0mm | Higher current |
| 5030 | 5.0mm x 5.0mm x 3.0mm | High current |
| 1038 | 10.0mm x 10.0mm x 3.8mm | Large footprint |
| 1048 | 10.0mm x 10.0mm x 4.8mm | Large footprint |
The handler maps series prefixes to package types:
| Series | Extracted Package Type |
|---|---|
| XAL | Shielded Power |
| XAT | Shielded Power |
| XEL | Shielded Low DCR |
| XFL | Low Profile |
| SER | High Efficiency |
| LPS | Low Profile Shielded |
| MSS | Magnetically Shielded |
| DO | Drum Core |
| MSD | Mid-Size Drum |
| SLC | High Q Chip |
| SLR | High Q Chip RF |
| 0402HP | 0402 High Performance |
| 0603HP | 0603 High Performance |
The handler extracts series + size code as the full series identifier:
| MPN | Extracted Series |
|---|---|
| XAL4020-222ME | XAL4020 |
| XFL3012-102MEB | XFL3012 |
| LPS4018-473MLB | LPS4018 |
| DO3316P-472 | DO3316P |
| 0402HP-R47 | 0402HP |
The DO series may include an optional suffix letter before the value code:
DO3316P-472
| |
| +-- P = Variant suffix (C=Standard, P=Power, T=alternate)
+-- 3316 = Size code
The CoilcraftHandler supports:
ComponentType.INDUCTOR - Base inductor typeComponentType.INDUCTOR_CHIP_COILCRAFT - Coilcraft-specific inductor typeSeries: XAL (Shielded Power Inductor)
Size: 4020 (4.0mm x 4.0mm x 2.0mm)
Inductance: 222 = 22 x 10^2 nH = 2.2 uH
Tolerance: M = +/- 20%
Packaging: E = Embossed tape
Full Series: XAL4020
Package: Shielded Power
Series: XEL (Shielded Low DCR)
Size: 4030 (4.0mm x 4.0mm x 3.0mm)
Inductance: 102 = 10 x 10^2 nH = 1.0 uH
Tolerance: M = +/- 20%
Options: R = Tape, B = (possibly bulk variant)
Full Series: XEL4030
Package: Shielded Low DCR
Series: LPS (Low Profile Shielded)
Size: 3015 (3.0mm x 3.0mm x 1.5mm)
Inductance: 103 = 10 x 10^3 nH = 10 uH
Tolerance: L = +/- 15%
Packaging: B = Bulk
Full Series: LPS3015
Package: Low Profile Shielded
Series: 0402HP (0402 High Performance)
Inductance: R47 = 0.47 uH
Tolerance: K = +/- 10%
Packaging: B = Bulk
Full Series: 0402HP
Package: 0402 High Performance
Series: DO (Drum Core)
Size: 3316 (3.3mm x 3.3mm x 1.6mm)
Variant: P = Power variant
Inductance: 472 = 47 x 10^2 nH = 4.7 uH
Tolerance: L = +/- 15%
Packaging: B = Bulk
Full Series: DO3316P
Package: Drum Core
// Coilcraft patterns have consistent structure:
// - 2-3 letter series prefix
// - 4-digit size code
// - Optional hyphen
// - 3-digit value code (or Rxx)
// - Optional tolerance + packaging suffix
// Example pattern for XAL/XEL series:
"^(XA[LT]|XEL)(\\d{4})[-]?(\\d{3}|R\\d{2})([A-Z]*)$"
// | | | | |
// | | | | +-- Suffix group (tolerance+pkg)
// | | | +-- Value group (222 or R47)
// | | +-- Optional hyphen
// | +-- Size code group (4 digits)
// +-- Series group
The handler includes extractInductanceValue() method that:
Two Coilcraft parts are considered official replacements if:
Different tolerance or packaging options are compatible replacements.
manufacturers/CoilcraftHandler.javaINDUCTOR, INDUCTOR_CHIP_COILCRAFTCoilcraftHandlerTest.java in handlers packageXAL4020-222ME or XAL4020222MEextractSeries() returns "XAL4020" not just "XAL" because different sizes have different current ratingsDifferent series have different regex group structures:
XAL/XEL/XFL/SER/LPS/MSS/MSD/SLC/SLR patterns:
Group 1: Series prefix (XAL)
Group 2: Size code (4020)
Group 3: Value code (222)
Group 4: Suffix (ME)
DO pattern (has extra variant group):
Group 1: Series prefix (DO)
Group 2: Size code (3316)
Group 3: Variant suffix (P)
Group 4: Value code (472)
Group 5: Suffix (MLB)
HP pattern (no separate size):
Group 1: Series+size (0402HP)
Group 2: Value code (R47)
Group 3: Suffix (KB)