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Fixed Inductors

Image Part Number Description / PDF Quantity Rfq
MGV2520121R0M-10

MGV2520121R0M-10

Laird - Performance Materials

FIXED IND 1UH 3.5A 49MOHM SMD

6840
TYS4020150M-10

TYS4020150M-10

Laird - Performance Materials

FIXED IND 15UH 770MA 230 MOHM

0
MGV0603R33M-10

MGV0603R33M-10

Laird - Performance Materials

FIXED IND 330NH 20A 3.9 MOHM SMD

2980
MGV12035R6M-10

MGV12035R6M-10

Laird - Performance Materials

FIXED IND 5.6UH 9.5A 19 MOHM SMD

354
MGV252010R68M-10

MGV252010R68M-10

Laird - Performance Materials

FIXED IND 680NH 3.4A 44MOHM SMD

14990
TYS60282R2N-10

TYS60282R2N-10

Laird - Performance Materials

FIXED IND 2.2UH 3.75A 20 MOHM

5204
TYS4020101M-10

TYS4020101M-10

Laird - Performance Materials

FIXED IND 100UH 310MA 1.55 OHM

0
TYS40301R0N-10

TYS40301R0N-10

Laird - Performance Materials

FIXED IND 1UH 4.15A 18.2 MOHM

8435
MGV06251R0M-10

MGV06251R0M-10

Laird - Performance Materials

FIXED IND 1UH 9A 14.2 MOHM SMD

0
MGV12076R8M-10

MGV12076R8M-10

Laird - Performance Materials

FIXED IND 6.8UH 11.5A 14 MOHM

475
MGV0625R10N-10

MGV0625R10N-10

Laird - Performance Materials

FIXED IND 100NH 30A 1.7MOHM SMD

845
MGV1207470M-10

MGV1207470M-10

Laird - Performance Materials

FIXED IND 47UH 6.5A 90MOHM SMD

1419
MGV06051R0M-10

MGV06051R0M-10

Laird - Performance Materials

FIXED IND 1UH 13A 6.5 MOHM SMD

9
MGV1004R20N-10

MGV1004R20N-10

Laird - Performance Materials

FIXED IND 200NH 35A 1MOHM SMD

0
MGV1207R30M-10

MGV1207R30M-10

Laird - Performance Materials

FIXED IND 300NH 48A 0.8 MOHM SMD

0
TYA3015R68M-10

TYA3015R68M-10

Laird - Performance Materials

FIXED IND 0.68UH 3.8A 36.5 MOHM

9995
MGV0603R68M-10

MGV0603R68M-10

Laird - Performance Materials

FIXED IND 680NH 15.5A 5.5 MOHM

0
TYS4020220M-10

TYS4020220M-10

Laird - Performance Materials

FIXED IND 22UH 620MA 350 MOHM

0
TYS3015470M-10

TYS3015470M-10

Laird - Performance Materials

FIXED IND 47UH 350MA 1.25 OHM

19208
MGV252010SR47M-10

MGV252010SR47M-10

Laird - Performance Materials

FIXED IND 470NH 5.2A 29MOHM SMD

13698

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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