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 Max1795 - 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 Max1467 - Immediate
7449150046 product page link
7449150079 datasheet linkFIXED IND 79NH 23A 2.11 MOHM SMD7449150079FIXED IND 79NH 23A 2.11 MOHM SMD79nH23A2.11 mOhm Max1284 - Immediate
7449150079 product page link
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WE-CAIR Series

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
744912127 datasheet linkFIXED IND 27NH 3.5A 4 MOHM SMD744912127FIXED IND 27NH 3.5A 4 MOHM SMD2679 - Immediate
744912127 product page link
744912133 datasheet linkFIXED IND 33NH 3A 4.8 MOHM SMD744912133FIXED IND 33NH 3A 4.8 MOHM SMD1814 - Immediate
744912133 product page link
74491 product page link
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Published: 2017-11-21