ample-chip ample-chip
RFQ
BOM

Fixed Inductors

Image Part Number Description / PDF Quantity Rfq
CKP2012N3R3M-T

CKP2012N3R3M-T

TAIYO YUDEN

FIXED IND 3.3UH 700MA 240 MOHM

0
NRS6028T0R9NMGJ

NRS6028T0R9NMGJ

TAIYO YUDEN

FIXED IND 900NH 4.6A 16.9 MOHM

4687
LBM2016T330J

LBM2016T330J

TAIYO YUDEN

FIXED IND 33UH 125MA 3.6 OHM SMD

0
NS12565T4R2NNV

NS12565T4R2NNV

TAIYO YUDEN

FIXED IND 4.2UH 5.91A 15.2MOHM

0
LB3218T150K

LB3218T150K

TAIYO YUDEN

FIXED IND 15UH 300MA 320 MOHM

1913
HK100556NJ-TV

HK100556NJ-TV

TAIYO YUDEN

FIXED IND 56NH 300MA 230 MOHM

0
HK10056N2S-T

HK10056N2S-T

TAIYO YUDEN

FIXED IND 6.2NH 430MA 250 MOHM

80827
NS12555T100MNV

NS12555T100MNV

TAIYO YUDEN

FIXED IND 10UH 5.04A 21 MOHM SMD

5488
NRH2410T2R2MNV

NRH2410T2R2MNV

TAIYO YUDEN

FIXED IND 2.2UH 970MA 180 MOHM

1247
CBC3225T330MRV

CBC3225T330MRV

TAIYO YUDEN

FIXED IND 33UH 400MA 533 MOHM

0
HK1005R10J-T

HK1005R10J-T

TAIYO YUDEN

FIXED IND 100NH 200MA 1.5 OHM

174174
LBM2016T5R6J

LBM2016T5R6J

TAIYO YUDEN

FIXED IND 5.6UH 255MA 880 MOHM

2292
LK1005R18M-TV

LK1005R18M-TV

TAIYO YUDEN

FIXED IND 180NH 25MA 760 MOHM

0
CBC3225T221KR

CBC3225T221KR

TAIYO YUDEN

FIXED IND 220UH 190MA 3.25 OHM

0
CB2016T470KV

CB2016T470KV

TAIYO YUDEN

FIXED IND 47UH 120MA 3.12 OHM

2000
NR4010T6R8M

NR4010T6R8M

TAIYO YUDEN

FIXED IND 6.8UH 620MA 360 MOHM

0
NR4018T221M

NR4018T221M

TAIYO YUDEN

FIXED IND 220UH 170MA 4.8 OHM

3440
LK16085R6K-T

LK16085R6K-T

TAIYO YUDEN

FIXED IND 5.6UH 10MA 1.1 OHM SMD

282
NRS6045T2R3NMGK

NRS6045T2R3NMGK

TAIYO YUDEN

FIXED IND 2.3UH 3.6A 28.6 MOHM

8183
LB3218T681KV

LB3218T681KV

TAIYO YUDEN

FIXED IND 680UH 45MA 22.1OHM SMD

5368

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
RFQ BOM Call Skype Email
Top