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Fixed Inductors

Image Part Number Description / PDF Quantity Rfq
CPI1008J3R3R-10

CPI1008J3R3R-10

Laird - Performance Materials

FIXED IND 3.3UH 1.2A 160 MOHM

0
MGV1004R36M-10

MGV1004R36M-10

Laird - Performance Materials

FIXED IND 360NH 31.5A 1.4 MOHM

2000
MGV05021R0M-10

MGV05021R0M-10

Laird - Performance Materials

FIXED IND 1UH 7A 20 MOHM SMD

5930
TYA40124R7M-10

TYA40124R7M-10

Laird - Performance Materials

FIXED IND 4.7UH 1.8A 175 MOHM

17694
TYS8040680M-10

TYS8040680M-10

Laird - Performance Materials

FIXED IND 68UH 1.25A 196 MOHM

501
MGV1205100M-10

MGV1205100M-10

Laird - Performance Materials

FIXED IND 10UH 9A 25.5 MOHM SMD

1425
1XC0394-1T0-10

1XC0394-1T0-10

Laird - Performance Materials

FIXED IND 10UH 12.5A 8.5 MOHM TH

0
1XC0394-2T0-10

1XC0394-2T0-10

Laird - Performance Materials

FIXED IND 6UH 19A 4 MOHM TH

0
IC0805B332R-10

IC0805B332R-10

Laird - Performance Materials

FIXED IND 3.3UH 200MA 800 MOHM

0
TYS40125R6N-10

TYS40125R6N-10

Laird - Performance Materials

FIXED IND 5.6UH 1A 140 MOHM SMD

0
TYS252010LR47N-10

TYS252010LR47N-10

Laird - Performance Materials

FIXED IND 470NH 2.35A 56 MOHM

0
TYS30101R5N-10

TYS30101R5N-10

Laird - Performance Materials

FIXED IND 1.5UH 1.3A 80 MOHM SMD

0
TYS60456R8M-10

TYS60456R8M-10

Laird - Performance Materials

FIXED IND 6.8UH 3A 31 MOHM SMD

0
TYS50401R5N-10

TYS50401R5N-10

Laird - Performance Materials

FIXED IND 1.5UH 4.3A 15 MOHM SMD

0
TYS30153R3M-10

TYS30153R3M-10

Laird - Performance Materials

FIXED IND 3.3UH 1.36A 88 MOHM

0
TYS80402R0N-10

TYS80402R0N-10

Laird - Performance Materials

FIXED IND 2UH 5.15A 12 MOHM SMD

0
1XC0236-1T0-10

1XC0236-1T0-10

Laird - Performance Materials

FIXED IND 4UH 8.5A 7 MOHM TH

0
IC1206B221R-10

IC1206B221R-10

Laird - Performance Materials

FIXED INDUCTOR 220NH SMD

0
IC1206A332R-10

IC1206A332R-10

Laird - Performance Materials

FIXED IND 3.33UH 50MA 700 MOHM

0
IC0805B101R-10

IC0805B101R-10

Laird - Performance Materials

FIXED IND 100NH 250MA 300 MOHM

0

Fixed Inductors

1. Overview

Fixed inductors are passive electronic components designed to store energy in magnetic fields when electrical current flows through them. Unlike variable inductors, their inductance values remain constant during operation. These components play critical roles in filtering, signal processing, energy storage, and electromagnetic interference (EMI) suppression across modern electronics, including power supplies, communication systems, and automotive electronics.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Wirewound InductorsHigh precision, high current handling, low resistancePower supplies, DC-DC converters
Chip InductorsCompact SMD package, stable performance at high frequenciesMobile devices, RF circuits
Ferrite Bead InductorsEffective high-frequency noise suppressionEMI filtering in digital circuits
Thin-Film InductorsUltra-compact, high Q-factor, tight tolerance5G communication modules, IoT devices

3. Structure and Composition

Typical fixed inductors consist of:

  • Magnetic Core: Made from ferrite, powdered iron, or composite materials to concentrate magnetic flux
  • Coil Structure: Copper wire wound around the core (enamelled or silver-plated)
  • Encapsulation: Molded resin or ceramic coating for mechanical protection and insulation
  • Terminations: Solder-coated ends for PCB mounting (for SMD types) or leaded connections

4. Key Technical Specifications

ParameterDescriptionImportance
Inductance (L)Measured in henrys (H), determines energy storage capacityDefines filtering/energy storage performance
Rated Current (Irated)Maximum DC current before saturationPrevents core saturation and failure
DC Resistance (DCR)Resistance of coil windingsAffects efficiency and thermal performance
Self-Resonant Frequency (SRF)Frequency where inductor behaves as capacitorLimits effective operating frequency range
Q FactorQuality factor indicating efficiencyHigher Q = lower energy losses

5. Application Fields

  • Consumer Electronics: Smartphones, laptops, LED drivers
  • Industrial Equipment: Motor drives, power inverters
  • Automotive Systems: ECU modules, EV battery management
  • Telecom Infrastructure: Base station filters, optical transceivers

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
MurataLQH3NPN100M10 H, 1.2A, 1.8 1.4mm chip inductor
TDKMLZ2012A100T100MHz SRF, 1.0 1.25mm for RF circuits
VishayIHLP2525CZER1R0M1 H, 12A, composite construction
Coilcraft0402DC-103J10 H, 5% tolerance, ultra-low profile

7. Selection Guidelines

Key considerations during selection:

  • Calculate required inductance based on switching frequency and ripple current
  • Verify rated current exceeds maximum operating current by 20-30%
  • Select SRF higher than circuit operating frequency
  • Consider package size vs. thermal dissipation requirements
  • For EMI suppression: Choose ferrite beads with impedance curves matching target frequencies

8. Industry Trends

Current development trends include:

  • Miniaturization: Sub-0.5mm size inductors for wearable devices
  • High-Frequency Operation: Components supporting >10GHz 5G applications
  • Integrated Solutions: Combined inductor-filter modules
  • Material Innovation: Nanocrystalline cores for higher saturation flux
  • Automotive Focus: AEC-Q qualified parts for EV/HEV systems
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