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Fixed Inductors

Image Part Number Description / PDF Quantity Rfq
LBM2016TR82J

LBM2016TR82J

TAIYO YUDEN

FIXED IND 820NH 390MA 340 MOHM

1092
LB3218T470M

LB3218T470M

TAIYO YUDEN

FIXED IND 47UH 205MA 920 MOHM

0
NR6012T220ME

NR6012T220ME

TAIYO YUDEN

FIXED IND 22UH 630MA 636 MOHM

0
CB2016T101KV

CB2016T101KV

TAIYO YUDEN

FIXED IND 100UH 90MA 5.85 OHM

0
CKP2012E1R0M-T

CKP2012E1R0M-T

TAIYO YUDEN

FIXED IND 1UH 1.7A 100 MOHM SMD

0
MAKK2016T1R0M

MAKK2016T1R0M

TAIYO YUDEN

FIXED IND 1UH 2.2A 75 MOHM SMD

78903
BRC1608T1R0M6

BRC1608T1R0M6

TAIYO YUDEN

FIXED IND 1UH 680MA 188 MOHM SMD

1758
MBKK1608TR68N

MBKK1608TR68N

TAIYO YUDEN

FIXED IND 680NH 1.2A 120 MOHM

866
NRS6020T2R2NMGJV

NRS6020T2R2NMGJV

TAIYO YUDEN

FIXED IND 2.2UH 2.9A 40.8 MOHM

0
LK16088R2M-T

LK16088R2M-T

TAIYO YUDEN

FIXED IND 8.2UH 10MA 1.5 OHM SMD

0
LK16082R2M-T

LK16082R2M-T

TAIYO YUDEN

FIXED IND 2.2UH 30MA 1 OHM SMD

0
LBC2518T330MV

LBC2518T330MV

TAIYO YUDEN

FIXED IND 33UH 185MA 1.95 OHM

0
NR6028T220M

NR6028T220M

TAIYO YUDEN

FIXED IND 22UH 1.4A 175.5 MOHM

77656
LK1005R56K-T

LK1005R56K-T

TAIYO YUDEN

FIXED IND 560NH 20MA 470 MOHM

0
LHL10NB270K

LHL10NB270K

TAIYO YUDEN

FIXED IND 27UH 2A 69 MOHM TH

0
NRS6045T220MMGK

NRS6045T220MMGK

TAIYO YUDEN

FIXED IND 22UH 1.6A 139.1 MOHM

22440
LBC2518T221K

LBC2518T221K

TAIYO YUDEN

FIXED IND 220UH 80MA 8.4 OHM SMD

3565
MDKK2020T1R0MMV

MDKK2020T1R0MMV

TAIYO YUDEN

FIXED IND 1UH 1.9A 85 MOHM SMD

0
NRS5014TR47NMGGV

NRS5014TR47NMGGV

TAIYO YUDEN

FIXED IND 470NH 3.3A 30 MOHM SMD

0
LBM2016T330JV

LBM2016T330JV

TAIYO YUDEN

FIXED IND 33UH 125MA 4.68 OHM

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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