SMT flat-wire inductor

31 August 2026 Passive Components

Würth Elektronik introduces its new WE-SFIA series of flat-wire inductors in 2010, 2013, and 2016 packages. The inductors feature exceptionally low DC resistance and extended operating temperature range from -40°C to +180°C. The WE-SFIA series is available as catalogue components, but can also be adapted to meet customer-specific requirements.The WE-SFIA inductors are designed for high-efficiency DC/DC converters in the automotive field, such as single- and multiphase converters, as well as buck and boost converters with high saturation currents of up to 150 A. Other filter choke applications include battery management, motor, audio, and infotainment systems.

Flat-wire technology used in the chokes offers a host of advantages: It is mechanically more robust and enables tighter, more even windings as well as improved heat dissipation. Flat-wire windings also offer a larger cross-sectional area, thus reducing electrical resistance. This results in a higher current-carrying capacity, which provides significant advantages in handling transient current peaks. AC losses, such as the skin effect, are also significantly lower in high-frequency applications than in comparable round-wire variants.

The WE-SFIA product series is characterised by its compact design, high temperature resistance, and energy efficiency. The flat-wire inductors are available with values from 0,33 µH to 4,7 µH. Further inductance values are available on request.

For more information contact Würth Elektronik, +49 7942 945 5186, sarah.hurst@we-online.de, www.we-online.com

Further reading:

Harnessing Leakage Inductance
Würth Electronics South Africa Passive Components
Würth Electronics has expanded its WE-MCRI product series with the new 1090HL variant (HL = High Leakage), a coupled inductor specifically designed to improve the performance of SEPIC, ZETA and Cuk converters.

Read more...

---

Ultra-slim 30 W DIN Rail AC/DC
Brabek Passive Components
RECOM is extending its REFIN family with the new REFIN2U-S30.

Read more...

---

Panasonic thick film current sense resistors
Avnet Abacus Passive Components
Panasonic thick film current sense resistors enable potential cost savings up to 50% as an alternative to metal shunts

Read more...

---

Space saving SMD common-mode chokes
Electrocomp Passive Components
TDK Corporation presents the EP21 series of flat-wire double chokes designed for common-mode EMI filtering and available in an SMD format with dimensions of only 23,8 x 17,7 mm and heights ranging from 21,6 to 22,3 mm

Read more...

---

Highly rugged GAPS and HAPS proximity sensors
IOT Electronics Passive Components
Now available through Powell Electronics are the GAPS (General Aerospace Proximity Sensors) and HAPS (Harsh Application Proximity Sensors) proximity sensors from Honeywell.

Read more...

---

Understanding EMI Filters and their applications
Vepac Electronics Passive Components
Electromagnetic Interference (EMI) Filters are essential for maintaining electromagnetic compatibility (EMC), allowing multiple devices to function together without interference.

Read more...

---

Compact SSI family for industrial automation
Altron Arrow Passive Components
Infineon Technologies has introduced the ISSI20BxxF Solid State Isolator (SSI) family, bringing solid-state isolation technology into high-volume applications traditionally served by photovoltaic isolators (PVIs), photovoltaic relays (PVRs), and electromechanical relays (EMRs).

Read more...

---

SGMICRO expands analogue IC portfolio
iCorp Technologies Passive Components Telecoms, Datacoms, Wireless, IoT
SGMICRO continues to add to its analogue IC portfolio at a steady pace, with new devices released across power protection, power conversion, current sensing and RF signal-chain categories.

Read more...

---

SMT flat-wire inductor for automotive electronics
Würth Electronics South Africa Passive Components
Würth Elektronik introduces its new WE-SFIA series of flat-wire inductors in 2010, 2013, and 2016 packages.

Read more...

---

Nanocrystalline cores for cable assembly
Würth Electronics South Africa Passive Components
Conventional MnZn and NiZn ferrite cores for cable assembly are now complemented by nanocrystalline cable cores.

Read more...

---