WE-CAIR/WE-ACHC Series Air Coils

Wurth Electronics’ WE-CAIR air coils and WE-ACHC high current air coils for use in radio-engineering applications

Image of Wurth's WE-CAIR and WE-ACHC SeriesWurth Electronics' WE-ACHC high current air coil features flat wire for high frequency applications. The WE-ACHC is available in two sizes, 1010 and 1212, with an IR up to 40 A and has up to 50% higher Q-factor than other products. The coil label enables pick-and-place assembly.

The WE-CAIR air coil inductors are characterized by very high quality factors and are also in the low-frequency range (Q greater than 100). The resonance frequency is very high. The air coil inductors also guarantee a greater rated current compared to other RF inductors. In addition, the WE-CAIR have a high-temperature stability. They are available in the following sizes: 1322, 3136, 1340, 4248, and 3168.

WE-CAIR’s design sizes 1322 and 1340 are one-third flatter than the other size of products. The 1322 type has a 20% higher rated current with the conventional ceramic coils in the 0805 chip format. Its high Q-factor remains stable even in the high MHz range thus enabling these extremely flat air coils to be used over a broad spectrum of frequencies.

Thanks to the air coil, the inductance can be kept constant all the way into the GHz range; meaning these air coils are predestined for use in radio-engineering applications. A compact design combined with a high Q-factor and a high-rated current enables use in HF front-ends of all kinds and for the adjustments of the impedance of antennas for diverse frequency bands.

WE-CAIR Features
  • Inductance values from 1.65 nH up to 120 nH
  • Very high quality factor (>100)
  • High self-resonant frequency
  • High currents up to 3.5 A
  • Inductance tolerances of 5% and 10%
  • Pick and place-process possible
  • Good solderability (tinned connector pins)
  • Operating temperature: -40°C to +125°C
  • Sizes: 1322, 1340, 3136, 3168, 4248
WE-CAIR Applications
  • Especially good for RF applications
  • Ideal for high-current applications
  • Broad band filters
  • RF-decoupling
WE-ACHC Features
  • High quality factor Q
  • High currents
  • Inductance tolerances: ±20%
  • Operating temperature: -40°C to +125°C
  • Sizes: 1010, 1212
WE-ACHC Applications
  • High power filters
  • RF voltage regulators
  • High current applications

WE-ACHC Series

ImageManufacturer Part NumberDescriptionInductanceCurrent RatingDC Resistance (DCR)Available QuantityView Details
7449150023 datasheet linkFIXED IND 23NH 30A 1.2 MOHM SMD7449150023FIXED IND 23NH 30A 1.2 MOHM SMD23nH30A1.2 mOhm Max1775 - Immediate
7449150023 product page link
7449150046 datasheet linkFIXED IND 46.5NH 28A 1.62 MOHM7449150046FIXED IND 46.5NH 28A 1.62 MOHM46.5nH28A1.62 mOhm Max1421 - Immediate
7449150046 product page link
7449150079 datasheet linkFIXED IND 79NH 23A 2.11 MOHM SMD7449150079FIXED IND 79NH 23A 2.11 MOHM SMD79nH23A2.11 mOhm Max1265 - Immediate
7449150079 product page link
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WE-CAIR Series

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
74491 product page link
744912122 datasheet linkFIXED IND 22NH 3A 4.2 MOHM SMD744912122FIXED IND 22NH 3A 4.2 MOHM SMD0744912122 product page link
744912127 datasheet linkFIXED IND 27NH 3.5A 4 MOHM SMD744912127FIXED IND 27NH 3.5A 4 MOHM SMD2667 - Immediate
744912127 product page link
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Published: 2017-11-21