Inductor Component Skill

Name: inductor
Rating: 76
Author: Cantara

Guidance for working with inductor components in the lib-electronic-components library.

Supported Manufacturers & Patterns

Manufacturer	Handler	MPN Patterns	Example
Murata	`MurataHandler`	`LQG...`, `LQH...`, `LQW...`, `LQM...`	`LQG15HS2N2S02D`
TDK	`TDKHandler`	`MLF#...`, `NLV...`, `SDR...`	`MLF2012A100KT000`
Bourns	`BournsHandler`	`SRR...`, `SRN...`, `SRP...`	`SRR1208-100M`

ComponentTypes

java

// Base type
ComponentType.INDUCTOR

// Manufacturer-specific types
ComponentType.INDUCTOR_CHIP_MURATA
ComponentType.INDUCTOR_POWER_MURATA
ComponentType.INDUCTOR_CHIP_TDK
ComponentType.INDUCTOR_POWER_TDK
ComponentType.INDUCTOR_CHIP_BOURNS
ComponentType.INDUCTOR_THT_BOURNS
ComponentType.INDUCTOR_CHIP_YAGEO
ComponentType.INDUCTOR_CHIP_COILCRAFT
ComponentType.INDUCTOR_PANASONIC

MPN Structure

Murata LQG Series (Chip Inductor)

code

LQG 15 HS 2N2 S 02 D
│   │  │  │   │ │  │
│   │  │  │   │ │  └── Packaging (D=180mm Reel)
│   │  │  │   │ └───── Special code
│   │  │  │   └──────── Tolerance (S=±0.3nH)
│   │  │  └──────────── Value (2N2=2.2nH)
│   │  └─────────────── Series (HS=High Frequency)
│   └────────────────── Size (15=0402)
└────────────────────── Family (LQG=Chip)

TDK MLF Series

code

MLF 2012 A 100 K T 000
│   │    │ │   │ │ │
│   │    │ │   │ │ └── Special code
│   │    │ │   │ └──── Packaging (T=Taping)
│   │    │ │   └────── Tolerance (K=±10%)
│   │    │ └────────── Value (100=10µH)
│   │    └──────────── Type (A=Standard)
│   └───────────────── Size (2012=0805)
└────────────────────── Series (MLF=Multilayer)

Inductor Types

Type	Description	Applications
Chip	Multilayer ceramic/ferrite	RF, filtering
Power	Shielded/unshielded wound	DC-DC, power
Common Mode Choke	Coupled inductors	EMI filtering
Ferrite Bead	Lossy inductor	Noise suppression

Related ComponentTypes for EMI

java

ComponentType.FERRITE_BEAD_TDK
ComponentType.FERRITE_BEAD_YAGEO
ComponentType.EMI_FILTER_MURATA
ComponentType.EMI_FILTER_TDK
ComponentType.COMMON_MODE_CHOKE_MURATA
ComponentType.COMMON_MODE_CHOKE_TDK

Adding New Inductor Patterns

•In the manufacturer handler's initializePatterns():

java

registry.addPattern(ComponentType.INDUCTOR, "^NEWIND[0-9]{4}.*");
registry.addPattern(ComponentType.INDUCTOR_CHIP_MANUFACTURER, "^NEWIND[0-9]{4}.*");

•Add to getSupportedTypes():

java

types.add(ComponentType.INDUCTOR);
types.add(ComponentType.INDUCTOR_CHIP_MANUFACTURER);

Value Notation

Notation	Value
2N2	2.2 nH
10N	10 nH
R10	0.10 µH
100	10 µH (10 × 10^0)
101	100 µH (10 × 10^1)
102	1000 µH (10 × 10^2)

Murata Size Codes

Code	Imperial	Metric
15	0402	1005
18	0603	1608
21	0805	2012
31	1206	3216

Learnings & Quirks