ample-chip ample-chip
RFQ
BOM

Fixed Inductors

Image Part Number Description / PDF Quantity Rfq
AH3740A-80K

AH3740A-80K

ITG Electronics, Inc.

0.08UH, 10%, 0.145MOHM, 118.0AMP

2000
AH43328B-R15KHF

AH43328B-R15KHF

ITG Electronics, Inc.

FIXED IND 150NH 70A 0.2 MOHM SMD

450
L201204-162MHF

L201204-162MHF

ITG Electronics, Inc.

1634UH, 20%, 186 MOHM DCR, 4.2A

6
SM1608A-6R8MHF

SM1608A-6R8MHF

ITG Electronics, Inc.

6.8UH, 20%, 162.8MOHM, 2.5AMP MA

0
SL2026B-R08LHF

SL2026B-R08LHF

ITG Electronics, Inc.

80NH, 15%, 0.27MOHM, 52A MAX. SM

800
L201204-161MHF

L201204-161MHF

ITG Electronics, Inc.

165UH, 20%, 23.5 MOHM DCR, 13A D

6
SMHC2511-2R2MHF

SMHC2511-2R2MHF

ITG Electronics, Inc.

2.2UH, 20%, 18MOHM, 14AMP MAX. S

10000
SL1616A-R10MHF

SL1616A-R10MHF

ITG Electronics, Inc.

0.1UH, 20%, 0.32MOHM, 17AMP MAX.

500
DHP106095S-620MHF

DHP106095S-620MHF

ITG Electronics, Inc.

FIXED IND 62UH 12A 14.7 MOHM TH

30
AH43328B-R17KHF

AH43328B-R17KHF

ITG Electronics, Inc.

FIXED IND 170NH 70A 0.2 MOHM SMD

900
SLM534214A-1R5MHF

SLM534214A-1R5MHF

ITG Electronics, Inc.

1.5UH, 20%, 0.42MOHM, 25AMP MAX.

250
SLM40327A-R53MHF

SLM40327A-R53MHF

ITG Electronics, Inc.

0.53UH, 20%, 0.85MOHM, 28AMP MAX

900
SLM534214A-R80MHF

SLM534214A-R80MHF

ITG Electronics, Inc.

0.8UH, 20%, 0.42MOHM, 50AMP MAX.

250
SM1608A-R56MHF

SM1608A-R56MHF

ITG Electronics, Inc.

0.56UH, 20%, 10.9MOHM, 9.5AMP MA

0
SL3732C-R30KHF

SL3732C-R30KHF

ITG Electronics, Inc.

0.3UH, 10%, 0.29MOHM, 25AMP MAX.

0
SL2026-R08LHF

SL2026-R08LHF

ITG Electronics, Inc.

0.08UH, 15%, 0.47MOHM, 52AMP MAX

0
SL1616B-R06LHF

SL1616B-R06LHF

ITG Electronics, Inc.

0.065UH, 15%, 1MOHM, 26AMP MAX.

0
PQ108081-150MHF

PQ108081-150MHF

ITG Electronics, Inc.

FIXED IND 15UH 25.5A 3.5 MOHM

20
SM1608A-R33MHF

SM1608A-R33MHF

ITG Electronics, Inc.

0.33UH, 20%, 7.1MOHM, 12AMP MAX.

6000
PQ108081-180MHF

PQ108081-180MHF

ITG Electronics, Inc.

FIXED IND 19UH 22A 4.5 MOHM SMD

20

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