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Würth Elektronik SMD High-Current Coupled Inductors WE-CFWI

WE-CFWI high-current coupled inductors are equipped with two identical flat wire windings for high-current capabilities and ultra-low DC resistance for the best possible efficiency.

  • Very low DCR and very low leakage, typically <0.5%
  • Saturation current higher than 50 A
  • Low inductance drift over temperature
  • Operating temperature: -40°C up to +150°C
  • Coupled inductor with two identical windings

Product Description

Würth Elektronik has just released its innovative SMD high-current coupled inductors WE-CFWI.
The inductors are equipped with two identical flat wire windings for high-current capabilities and ultra-low DC resistance for the best possible efficiency.
Currents of up to 50A with DCRs as low as 1.6 mΩ are possible, and like other Würth Elektronik high-current flat-wire inductors, the WE-CFWI range is rated for an operating temperature of -40°C up to 150°C.

Typical applications

Coupled inductors in SEPIC or CUK converters, high-current power inductors connected in serial, common mode choke for filtering in circuits with high currents, and 1:1 transformer for flyback applications or decoupling.

High efficiency

Two identical flat wire windings for high-current capabilities and ultra-low DC resistance help ensure the best possible efficiency.

Electrical characteristics

Currents of up to 50A with DCRs as low as 1.6 mΩ are possible.

Product Series
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74485540290
74485540290

2336087

WURTH ELEKTRONIK - Inductor, Coupled, 2.9 µH, 20%, 5600 µohm, 17 A, 13.2mm x 13.2mm x 10.5mm

INDUCTOR, COUPLED, 2.9UH, 17A, 20%; Product Range:WE-CFWI Series; Inductance, Parallel:2.9µH; RMS Current - Parallel:17A; Saturation Current - Parallel:29A; Coupled Inductor Case:13.2mm x 13.2mm x 10.5mm; DC Resistance Max - Parallel:5600µohm; Packaging:

50 in stock

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50 UK Stock: Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

More stock available week commencing 25/12/17

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74485540440
74485540440

2336089

WURTH ELEKTRONIK - Inductor, Coupled, 4.4 µH, 20%, 9600 µohm, 12 A, 13.2mm x 13.2mm x 10.5mm

INDUCTOR, COUPLED, 4.4UH, 12A, 20%; Product Range:WE-CFWI Series; Inductance, Parallel:4.4µH; RMS Current - Parallel:12A; Saturation Current - Parallel:24A; Coupled Inductor Case:13.2mm x 13.2mm x 10.5mm; DC Resistance Max - Parallel:9600µohm; Packaging:

37 in stock

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37 UK Stock: Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

More stock available week commencing 25/12/17

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74485540080
74485540080

2336083

WURTH ELEKTRONIK - Inductor, Coupled, 800 nH, 20%, 1600 µohm, 28 A, 13.2mm x 13.2mm x 10.5mm

INDUCTOR, COUPLED, 0.8UH, 28A, 20%; Product Range:WE-CFWI Series; Inductance, Parallel:800nH; RMS Current - Parallel:28A; Saturation Current - Parallel:62A; Coupled Inductor Case:13.2mm x 13.2mm x 10.5mm; DC Resistance Max - Parallel:1600µohm; Packaging:

21 in stock

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21 UK Stock: Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

More stock available week commencing 25/12/17

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74485540220
74485540220

2336086

WURTH ELEKTRONIK - Inductor, Coupled, 2.2 µH, 20%, 4200 µohm, 18 A, 13.2mm x 13.2mm x 10.5mm

INDUCTOR, COUPLED, 2.2UH, 18A, 20%; Product Range:WE-CFWI Series; Inductance, Parallel:2.2µH; RMS Current - Parallel:18A; Saturation Current - Parallel:35A; Coupled Inductor Case:13.2mm x 13.2mm x 10.5mm; DC Resistance Max - Parallel:4200µohm; Packaging:

21 in stock

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1 Liege Stock: Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

20 UK Stock: Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

More stock available week commencing 25/12/17

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74485540120
74485540120

2336084

WURTH ELEKTRONIK - Inductor, Coupled, 1.2 µH, 20%, 2400 µohm, 23 A, 13.2mm x 13.2mm x 10.5mm

INDUCTOR, COUPLED, 1.2UH, 23A, 20%; Product Range:WE-CFWI Series; Inductance, Parallel:1.2µH; RMS Current - Parallel:23A; Saturation Current - Parallel:47A; Coupled Inductor Case:13.2mm x 13.2mm x 10.5mm; DC Resistance Max - Parallel:2400µohm; Packaging:

Awaiting Delivery (Available for backorder to lead times shown)

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74485540170
74485540170

2336085

WURTH ELEKTRONIK - Inductor, Coupled, 1.7 µH, 20%, 3300 µohm, 21 A, 13.2mm x 13.2mm x 10.5mm

INDUCTOR, COUPLED, 1.7UH, 21A, 20%; Product Range:WE-CFWI Series; Inductance, Parallel:1.7µH; RMS Current - Parallel:21A; Saturation Current - Parallel:39A; Coupled Inductor Case:13.2mm x 13.2mm x 10.5mm; DC Resistance Max - Parallel:3300µohm; Packaging:

Awaiting Delivery (Available for backorder to lead times shown)

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74485540350
74485540350

2336088

WURTH ELEKTRONIK - Inductor, Coupled, 3.5 µH, 20%, 7500 µohm, 14 A, 13.2mm x 13.2mm x 10.5mm

INDUCTOR, COUPLED, 3.5UH, 14A, 20%; Product Range:WE-CFWI Series; Inductance, Parallel:3.5µH; RMS Current - Parallel:14A; Saturation Current - Parallel:27A; Coupled Inductor Case:13.2mm x 13.2mm x 10.5mm; DC Resistance Max - Parallel:7500µohm; Packaging:

Awaiting Delivery (Available for backorder to lead times shown)

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  • 99 will be available for delivery on 20-Oct-2017
  • More stock available week commencing 25/12/17 Contact me when back in stock

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