ample-chip ample-chip
RFQ
BOM

Fixed Inductors

Image Part Number Description / PDF Quantity Rfq
L1210R100MDWIT

L1210R100MDWIT

KEMET

FIXED IND 10UH 900MA 133 MOHM

8916
L0603B1R0MDWFT

L0603B1R0MDWFT

KEMET

FIXED IND 1UH 770MA 90 MOHM SMD

2415
SBC9-150-362

SBC9-150-362

KEMET

FIXED IND 15UH 3.6A 40 MOHM TH

248
MPCH0740LR24

MPCH0740LR24

KEMET

FIXED IND 240NH 27A 1 MOHM SMD

364
L0603C2N7SRMST

L0603C2N7SRMST

KEMET

FIXED IND 2.7NH 300MA 100 MOHM

3045
MPEV1D1040L150

MPEV1D1040L150

KEMET

METAL INDUCTOR , A, MOHM, AEC-Q2

0
SBC4-332-161

SBC4-332-161

KEMET

FIXED IND 3.3MH 160MA 7.69 OHM

258
MPLCV0654L470

MPLCV0654L470

KEMET

FIXED IND 47UH 2.1A 175 MOHM SMD

1931
SBC1-100-172

SBC1-100-172

KEMET

FIXED IND 10UH 1.7A 80 MOHM TH

1796
MPCG0740LR42

MPCG0740LR42

KEMET

FIXED IND 420NH 22A 1.55 MOHM

188
SBCP-47HY2R7B

SBCP-47HY2R7B

KEMET

FIXED IND 2.7UH 2.45A 32 MOHM TH

597
SBC3-332-151

SBC3-332-151

KEMET

FIXED IND 3.3MH 150MA 7.66 OHM

333
SBCP-47HY3R3B

SBCP-47HY3R3B

KEMET

FIXED IND 3.3UH 2.3A 37 MOHM TH

2978
MPXV1D0618L1R0

MPXV1D0618L1R0

KEMET

FIXED IND 1UH 7.1A 19.3 MOHM SMD

994
MPX1D1040L330

MPX1D1040L330

KEMET

FIXED IND 33UH 3.7A 119.7 MOHM

439
MPXV1D2213L1R0

MPXV1D2213L1R0

KEMET

FIXED IND 1UH 74A 1 MOHM SMD

32
MPXV1D2213LR47

MPXV1D2213LR47

KEMET

FIXED IND 470NH 90A 0.48 MOHM

30
MPXV1D0624LR47

MPXV1D0624LR47

KEMET

FIXED IND 470NH 15.4A 5.2 MOHM

1000
SBC9-151-112

SBC9-151-112

KEMET

FIXED IND 150UH 1.1A 260 MOHM TH

249
SBCP-87HY221H

SBCP-87HY221H

KEMET

FIXED IND 220UH 650MA 570 MOHM

490

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