Würth Electronics, as one of the leading manufacturers of miniature and high efficient power magnetics, is presenting with the WE-SPC the newest generation of power inductors for the DC/DC switching regulators of tomorrow!

Würth Electronics is manufacturing four inductor families for miniature DC/DC converter applications, which have outstanding characteristics in compact size, saturation and rated current capabilities as well as DC resistance. In addition those Würth Electronics inductors are recommended on the reference designs of integrated circuits of the leading manufacturers in this industry.

Würth's WE-PMIWE-PMI: SMD Power Multilayer Inductors
Sizes: 0603 / 0805 / 1008
Inductance range: 0.47µH – 10µH
View all WE-PMI products
Würth's WE-TPC 2828WE-TPC 2828: SMD Tiny Power Inductors
Size: 2.8 x 2.8 x 2.8mm
Inductance range: 0.30µH – 22µH
View all WE-TPC 2828 products
Würth's WE-LHMIWE-LHMI 4020: SMD High Current Molded Inductors
Size: 4.4 x 4.0 x 1.8mm
Inductance range: 0.10µH – 22µH
View all WE-LHMI 4020 products
Würth's WE-SPCWE-SPC 4838: SMD High Sat Current Power Inductors
Size: 4.8 x 4.8 x 3.8mm
Inductance range: 0.22µH – 100µH
View all WE-SPC 4838 products

Würth Electronics WE-PMI series provides advantages over other multilayer power inductors, including small size, small DCR, and high current capability of up to 2.4A.

The WE-PMI series finds its usage in DC/DC converters with high switching frequencies, which are typically found in portable devices such as PDA’s, MP3 players, and cameras. The full series has inductance values from 1.0µH up to 10µH.

Würth's WE-PMI



  • Suitable for applications with high currents up to 2.4A
  • Operating temperature: -40°C to +125°C
  • Recommended soldering profile: Reflow
  • Available in two types
  • Compact multilayer type
  • RoHS Compliant
  • Low clamping voltage
  • DCR values below 0.2Ω
  • No crosstalk
  • DC/DC converters especially at high switching frequencies
  • Portable devices such as PDA's and digital cameras
DC Resistance
732-2506-1-ND 74479887210 1µH 1.2A 1.2A 290 mOhm Datasheet
732-2507-1-ND 74479887222 2.2µH 1A 1A 430 mOhm Datasheet
732-2508-1-ND 74479887247 4.7µH 850mA 850mA 650 mOhm Datasheet
732-2509-1-ND 74479887268 6.8µH 600mA 600mA 790 mOhm Datasheet
732-2510-1-ND 74479887310 10µH 350mA 350mA 740 mOhm Datasheet
732-2952-1-ND 74479775210 1µH 1.1A 700mA 100 mOhm Datasheet
732-2953-1-ND 74479775222 2.2µH 700mA 500mA 230 mOhm Datasheet
732-2954-1-ND 74479776222 2.2µH 1.2A 400mA 110 mOhm Datasheet
732-2955-1-ND 74479776233 3.3µH 1.1A 260mA 130 mOhm Datasheet
732-2956-1-ND 74479776247 4.7µH 1A 140mA 160 mOhm Datasheet
732-3026-1-ND 74479775147 470nH 1.4A 900mA 85 mOhm Datasheet
732-3432-1-ND 74479763147 470nH 800mA 200mA 300 mOhm Datasheet
732-3433-1-ND 74479763210 1µH 750mA 350mA 300 mOhm Datasheet
732-3434-1-ND 74479775147A 470nH 1.4A 1A 100 mOhm Datasheet
732-3435-1-ND 74479787147A 470nH 1.8A 950mA 40 mOhm Datasheet
732-3436-1-ND 74479787210A 1µH 1.7A 900mA 55 mOhm Datasheet

Würth Electronics WE-TPC 2828 size is one of the best choices for LED driver applications. Due to the small footprint of the component (2.8 x 2.8) and the extended height of 2.8 mm the inductor fits in nearly all low power DC/DC Converter applications as well.

The TPC 2828 is available from 0.056 µH up to 22 µH and is tuned specially for converters which run with a high switching frequency.

Due to the 2.8 mm height the current capability of the TPC 2828 is respectively high and nearly unmatched within the market for an inductor with such a small footprint.

Würth's WE-TPC 2828



  • Flat power inductor 2.8 x 2.8 x 2.8 mm
  • High current capability up to 4.7 A
  • Magnetically shielded which results in a low leakage field
  • Recommended solder profile: Reflow
  • Operating temperature: –40 °C to +125 °C
  • Portable power like PDA, digital camera, PCMCIA cards and displays
  • DC/DC converters
  • Embedded PCs
  • Mobile data gathering, telemetrics
DC Resistance
732-2610-1-ND 74402500047 470nH 3.3A 4.7A 23 mOhm Max Datasheet
732-2611-1-ND 74402500072 720nH 3A 4A 28 mOhm Max Datasheet
732-2612-1-ND 744025001 1.2µH 2.6A 3A 42 mOhm Max Datasheet
732-2613-1-ND 744025002 2.2µH 1.8A 2.4A 66 mOhm Max Datasheet
732-2614-1-ND 744025003 3.3µH 1.5A 1.8A 101 mOhm Max Datasheet
732-2615-1-ND 744025004 4.7µH 1.35A 1.7A 120 mOhm Max Datasheet
732-2616-1-ND 744025006 6.8µH 1.1A 1.3A 165 mOhm Max Datasheet
732-2617-1-ND 744025100 10µH 1A 1.1A 190 mOhm Max Datasheet
732-2618-1-ND 744025150 15µH 720mA 900mA 400 mOhm Max Datasheet
732-2619-1-ND 744025220 22µH 500mA 750mA 575 mOhm Max Datasheet

Würth Electronics has introduced with the new WE-LHMI 4020 a compact sized high current inductor for Point of Load (PoL) Converters as well as switching regulators powered in battery powered devices.

The WE-LHMI 4020 is only 4x4x2mm small and is equipped with low DC resistances to increase the efficiency of the DC/DC converter applications. In addition there is wide breath of inductance values available (0.1µH up to 22µH) that you can find the right inductance value for your circuit. The maximum currents, depending on the inductance value, is up to 30A ISAT and 12A IDC.




  • Compact design
  • Magnetically shielded
  • High current capability
  • Handles high transient current spikes
  • No acoustic noise and no leakage field
  • Operating temperature: -40°C to +125°C
  • DC/DC Converters for high current power supplies
  • DC/DC Converters for Field Programmable Gate Arrays (FPGA)
  • POL Converters
  • Portable power like PDA, digital camera
  • Mainboards/ graphic cards
  • Battery powered devices
DC Resistance
732-3344-1-ND 744373240010 100nH 12A 30A 4 mOhm Max Datasheet
732-3345-1-ND 744373240022 220nH 9.5A 17A 7.3 mOhm Max Datasheet
732-3338-1-ND 744373240033 330nH 8A 16.5A 8.6 mOhm Max Datasheet
732-3332-1-ND 744373240047 470nH 6.8A 14.5A 14 mOhm Max Datasheet
732-3341-1-ND 744373240056 560nH 6A 10.5A 16 mOhm Max Datasheet
732-3334-1-ND 744373240068 680nH 5.5A 10A 19 mOhm Max Datasheet
732-3342-1-ND 74437324010 1µH 5A 9A 27 mOhm Max Datasheet
732-3347-1-ND 74437324012 1.2µH 4.7A 8.5A 30 mOhm Max Datasheet
732-3346-1-ND 74437324015 1.5µH 3.8A 8A 42 mOhm Max Datasheet
732-3331-1-ND 74437324022 2.2µH 3.25A 6.5A 61 mOhm Max Datasheet
732-3343-1-ND 74437324033 3.3µH 2.5A 4.2A 76 mOhm Max Datasheet
732-3333-1-ND 74437324047 4.7µH 2.2A 4A 105 mOhm Max Datasheet
732-3339-1-ND 74437324056 5.6µH 2A 3.8A 125 mOhm Max Datasheet
732-3335-1-ND 74437324068 6.8µH 1.75A 3.5A 172 mOhm Max Datasheet
732-3337-1-ND 74437324082 8.2µH 1.6A 2.8A 180 mOhm Max Datasheet
732-3336-1-ND 74437324100 10µH 1.5A 2.4A 243 mOhm Max Datasheet
732-3340-1-ND 74437324220 22µH 1A 2A 500 mOhm Max Datasheet

Würth Electronics power inductor line WE-SPC is designed for the newest generation of DC/DC converter ICs with high switching frequencies.

The WE-SPC series is tuned for high saturation currents to deliver the full specified inductance at and slightly above the rated current. The available inductance values go from 0.22 µH up to 100 µH and max saturation currents of up to 13 A are possible.

Due to the small footprint of 4.8 x 4.8 mm the WE-SPC series is well suited for mobile devices and applications with tight space requirements.

Würth's WE-SPC



  • Extremely small size
  • High saturation current, up to 13 A
  • Magnetic shielding which results in a low leakage field
  • High self-resonance frequency
  • Low self-losses
  • Optimized solderability characteristics
  • Constant saturation characteristics
  • Recommended solder profile: Reflow
  • Operating temperature: –40 °C up to +125 °C
  • Portable power devices
  • DC/DC converters
  • PCMCIA cards
  • Smart phones
  • PDAs
  • Digital cameras
DC Resistance
732-3027-1-ND 744089430039 390nH 4.2A 9.3A 16 mOhm Max Datasheet
732-3028-1-ND 74408943010 1µH 3.3A 6.5A 22 mOhm Max Datasheet
732-3029-1-ND 74408943022 2.2µH 3A 4.6A 30 mOhm Max Datasheet
732-3030-1-ND 74408943033 3.3µH 2.6A 3.6A 36 mOhm Max Datasheet
732-3031-1-ND 74408943047 4.7µH 2.2A 3.2A 52 mOhm Max Datasheet
732-3032-1-ND 74408943068 6.8µH 2A 2.7A 59 mOhm Max Datasheet
732-3033-1-ND 74408943100 10µH 1.65A 2.1A 94 mOhm Max Datasheet
732-3034-1-ND 74408943220 22µH 1.1A 1.4A 213 mOhm Max Datasheet
732-3035-1-ND 74408943330 33µH 900mA 1.2A 298 mOhm Max Datasheet
732-3036-1-ND 74408943470 47µH 800mA 1.05A 351 mOhm Max Datasheet
732-3038-1-ND 74408943680 68µH 600mA 850mA 700 mOhm Max Datasheet
732-3038-1-ND 74408943101 100µH 520mA 680mA 850 mOhm Max Datasheet
PI Chart

Würth Electronics low power POL solutions design kit includes single and dual channel DC-DC converters covering the 600 mA to 1.5 A current range

With this Low Power Point of Load (POL) Solution Design Kit, Exar and Würth Electronics proudly bring you a complete range of converter solutions from 600 mA up to 1,500 mA. This kit includes both single and dual channel options. It provides the latest synchronous step down ICs with best suitable and lowest profile inductors for your application needs.

WE-TPC 2828
Characteristics Applications
  • Synchronous buck regulator
  • 600 mA to 1,500 mA, single and dual channel converter
  • Low input voltage (2.5 V-5.5 V)
  • Constant operating frequency up to 1.5 MHz
  • Efficiency up to 97%
  • Adjustable output voltage as low as 0.6 V
  • Over temperature protection
  • Portable equipment
  • Set top box
  • Portable media players
  • Hard disk drives
  • Battery operated equipment
  • Audio-video equipment
  • Networking & telecom equipment
Digi-Key P/N Manufacturer P/N Description  
32-3616-ND IC-744721 LOW POWER DESIGN KIT Datasheet