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Fixed Inductors

Image Part Number Description / PDF Quantity Rfq
MGV1004150M-10

MGV1004150M-10

Laird - Performance Materials

FIXED IND 15UH 6.25A 45MOHM SMD

454
MGV12056R8M-10

MGV12056R8M-10

Laird - Performance Materials

FIXED IND 6.8UH 11A 18.5 MOHM

0
TYA2520122R2M-10

TYA2520122R2M-10

Laird - Performance Materials

FIXED IND 2.2UH 1.9A 120 MOHM

9825
TYA201610100M-10

TYA201610100M-10

Laird - Performance Materials

FIXED IND 10UH 600MA 875 MOHM

9720
MGV10042R2M-10

MGV10042R2M-10

Laird - Performance Materials

FIXED IND 2.2UH 12A 9 MOHM SMD

838
TYA252012R68M-10

TYA252012R68M-10

Laird - Performance Materials

FIXED IND 0.68UH 3.15A 45 MOHM

9950
MGV2520121R5M-10

MGV2520121R5M-10

Laird - Performance Materials

FIXED IND 1.5UH 2.5A 77MOHM SMD

14906
MGV1207R82M-10

MGV1207R82M-10

Laird - Performance Materials

FIXED IND 820NH 33A 1.9 MOHM SMD

0
CPI1008KR82R-10

CPI1008KR82R-10

Laird - Performance Materials

FIXED IND 820NH 1.7A 100 MOHM

0
MGV0625150M-10

MGV0625150M-10

Laird - Performance Materials

FIXED IND 15UH 2.5A 180MOHM SMD

0
TYS30156R8M-10

TYS30156R8M-10

Laird - Performance Materials

FIXED IND 6.8UH 850MA 200 MOHM

786
MGV0312R82M-10

MGV0312R82M-10

Laird - Performance Materials

FIXED IND 820NH 3.5A 48MOHM SMD

7979
TYA252010R68M-10

TYA252010R68M-10

Laird - Performance Materials

FIXED IND 0.68UH 2.75A 59 MOHM

9810
MGV0503R68M-10

MGV0503R68M-10

Laird - Performance Materials

FIXED IND 680NH 10.2A 8.96 MOHM

495
MGV1205R47M-10

MGV1205R47M-10

Laird - Performance Materials

FIXED IND 470NH 38A 1.3 MOHM SMD

0
MGV1207R40M-10

MGV1207R40M-10

Laird - Performance Materials

FIXED IND 400NH 44A 1 MOHM SMD

480
TYS40206R8M-10

TYS40206R8M-10

Laird - Performance Materials

FIXED IND 6.8UH 1.04A 125 MOHM

0
MGV252012R47M-10

MGV252012R47M-10

Laird - Performance Materials

FIXED IND 470NH 4.6A 25MOHM SMD

4860
MGV06251R5M-10

MGV06251R5M-10

Laird - Performance Materials

FIXED IND 1.5UH 7.5A 21.2 MOHM

2990
TYS8040100M-10

TYS8040100M-10

Laird - Performance Materials

FIXED IND 10UH 3.3A 29 MOHM SMD

1477

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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