Low-Profile, High-Current Inductors Optimized for High-Frequency VRM10.0 Applications

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Offered in 2727, 4027, 4031, and 5151 Case Sizes, Devices Offer Frequency Range to 2 MHz and Current to 71 A

vishay-intertechnology-415x260Vishay Intertechnology, Inc. today introduced a new series of low-profile, high-current inductors for high-frequency VRM10.0 applications. Offered in the 2727, 4027, 4031, and 5151 case sizes, Vishay Dale IFLR series devices offer high saturation current to 71 A, very low DCR to 0.26 mΩ, and inductance down to 0.072 µH.

With a frequency range up to 2 MHz, the inductors released today serve as high-performing, space- and power-saving solutions for voltage regulator modules (VRMs) and DC/DC converters in notebooks, desktop computers, and servers; and low-profile, high-current power supplies and point of load (POL) converters.

Featuring a 100 % lead (Pb)-free shielded package, the RoHS-compliant devices are specified for an operating temperature range of 40 °C to +125 °C, with high resistance to thermal shock, moisture, mechanical shock, and vibration.

Device Specification Table:

Part # IFLR-2727EZ-01 IFLR-4027EZ-01 IFLR-4031GC-01 IFLR-5151HZ-01
Case size 2727 4027 4031 5151
Inductance (µH) 0.072 to 0.150 0.085 to 0.220 0.170 to 0.215 0.21 to 0.44
DCR typ. (mΩ) 0.32 0.38 0.26 0.32
DCR max. (mΩ) 0.35 0.42 0.29 0.35
Heat rating current (A) 45 50 61 50
Saturation current (A) 30 to 58 33 to 70 44 to 60 35 A to 71 A

Samples and production quantities of the IFLR series are available now, with lead times of 12 weeks for large orders.


Vishay Intertechnology, Inc.
, a Fortune 1000 Company listed on the NYSE (VSH), is one of the world’s largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay’s product innovations, successful acquisition strategy, and “one-stop shop” service have made it a global industry leader. Vishay can be found on the Internet at www.vishay.com.

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