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Fixed Inductors

Image Part Number Description / PDF Quantity Rfq
TYS60454R5M-10

TYS60454R5M-10

Laird - Performance Materials

FIXED IND 4.5UH 3.3A 26 MOHM SMD

0
MGV0502R33M-10

MGV0502R33M-10

Laird - Performance Materials

FIXED IND 330NH 12A 8.2 MOHM SMD

484
MGV1205R82M-10

MGV1205R82M-10

Laird - Performance Materials

FIXED IND 820NH 31A 2.3 MOHM SMD

1975
MGV03124R7M-10

MGV03124R7M-10

Laird - Performance Materials

FIXED IND 4.7UH 1.6A 293MOHM SMD

0
MGV0402R68M-10

MGV0402R68M-10

Laird - Performance Materials

FIXED IND 680NH 7A 19MOHM SMD

155
TYS4012330M-10

TYS4012330M-10

Laird - Performance Materials

FIXED IND 33UH 420MA 810 MOHM

0
MGV252010R22M-10

MGV252010R22M-10

Laird - Performance Materials

FIXED IND 220NH 5.9A 12.5MOHM SM

6929
MGV03021R0M-10

MGV03021R0M-10

Laird - Performance Materials

FIXED IND 1UH 4A 38MOHM SMD

0
TYS5040330M-10

TYS5040330M-10

Laird - Performance Materials

FIXED IND 33UH 1.2A 188 MOHM SMD

0
MGV03121R5M-10

MGV03121R5M-10

Laird - Performance Materials

FIXED IND 1.5UH 3A 85MOHM SMD

8000
TYS252010LR68N-10

TYS252010LR68N-10

Laird - Performance Materials

FIXED IND 680NH 2A 74 MOHM SMD

0
MGV12054R7M-10

MGV12054R7M-10

Laird - Performance Materials

FIXED IND 4.7UH 12A 15 MOHM SMD

1991
TYA30124R7M-10

TYA30124R7M-10

Laird - Performance Materials

FIXED IND 4.7UH 1.15A 255 MOHM

9890
TYS4018101M-10

TYS4018101M-10

Laird - Performance Materials

FIXED IND 100UH 250MA 1.75 OHM

1942
TYA4012100M-10

TYA4012100M-10

Laird - Performance Materials

FIXED IND 10UH 850MA 360 MOHM

16900
MGV0502R47M-10

MGV0502R47M-10

Laird - Performance Materials

FIXED IND 470NH 11.5A 9.4 MOHM

6000
TYS4018220M-10

TYS4018220M-10

Laird - Performance Materials

FIXED IND 22UH 590MA 360 MOHM

4290
TYS252010L100M-10

TYS252010L100M-10

Laird - Performance Materials

FIXED IND 10UH 500MA 1.092 OHM

0
TYA2520103R3M-10

TYA2520103R3M-10

Laird - Performance Materials

FIXED IND 3.3UH 1.2A 235 MOHM

9979
MGV0625R82M-10

MGV0625R82M-10

Laird - Performance Materials

FIXED IND 820NH 10A 11.8 MOHM

2836

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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