WE-CST High-Frequency Transformers

Würth Elektronik WE-CST High-Frequency Transformers feature a frequency up to 1MHz, 80V rated voltage, and 500VAC to 750VAC insulation test voltage. An innovative manufacturing process makes these transformers extremely small, with better insulation. The type EE4.4 transformers are offered in nine winding ratios from 1:20 to 1:150. With an insulation voltage of 750VAC, type EE4.4 transformers are suitable for a broad range of high-frequency applications up to 1MHz with currents up to 7A. The Würth type EE5 transformers double the current rating from 10A to 20A and are available in eight ratios from 1:20 to 1:124. Other EE5 features include an insulation test voltage of 500VAC, 7.7mm x 6.9mm x 5.33mm dimensions, and a low profile. 

Results: 29
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 Mfr.
Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
Inductance
Current Rating
Turns Ratio
Secondary Resistance
Termination Style
Length
Width
Height
Frequency Range
Wurth Elektronik Current Transformers - Board Mount WE-CST 820Uh 7A 1:100 DCR=9.5ohms
Datasheet
1,065In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

PCB Mount 820 uH 7 A 1:100 9.5 Ohms SMD/SMT 4.7 mm 4.65 mm 3.55 mm
Wurth Elektronik Current Transformers - Board Mount Current Sense Transformer 33uH, 7A, 80V
Datasheet
1,864In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

PCB Mount 33 uH 7 A 1:20 350 mOhms SMD/SMT 4.7 mm 4.65 mm 3.55 mm
Wurth Elektronik Current Transformers - Board Mount WE-CST 205uH 7A 1:50 DCR=2.5ohms
Datasheet
1,895In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

PCB Mount 205 uH 7 A 1:50 2.5 Ohms SMD/SMT 4.7 mm 4.65 mm 3.55 mm
Wurth Elektronik Current Transformers - Board Mount WE-CST 400uH 7A 1:70 DCR=4.6ohms
Datasheet
1,936In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

PCB Mount 400 uH 7 A 1:7 4.6 Ohms SMD/SMT 4.7 mm 4.65 mm 3.55 mm
Wurth Elektronik Current Transformers - Board Mount WE-CST 0.224mH 1:20 40A EE13/7/4 SMT
Datasheet
814In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 225

SMD/SMT 224 uH 40 A 1:20 33 mOhms SMD/SMT 14.48 mm 13.3 mm 10.5 mm 1 MHz
Wurth Elektronik Current Transformers - Board Mount WE-CST 135mH 1:500 40A EE13/7/4 SMT
Datasheet
541In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 225

SMD/SMT 135 mH 40 A 1:500 21.2 mOhms SMD/SMT 14.48 mm 13.3 mm 10.5 mm 1 MHz
Wurth Elektronik Current Transformers - Board Mount WE-CST 1.4mH 1:50 40A EE13/7/4 SMT
Datasheet
629In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 225

SMD/SMT 1.4 mH 40 A 1:50 202 mOhms SMD/SMT 14.48 mm 20.2 mm 10.5 mm 1 MHz
Wurth Elektronik Current Transformers - Board Mount WE-CST 22.4mH 1:200 40A EE13/7/4 SMT
Datasheet
683In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 225

SMD/SMT 22.4 mH 40 A 1:200 2.63 Ohms SMD/SMT 14.48 mm 13.3 mm 10.5 mm 1 MHz
Wurth Elektronik Current Transformers - Board Mount WE-CST 540mH 1:1000 40A EE13/7/4 SMT
Datasheet
907In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 225

SMD/SMT 540 mH 40 A 1:1000 87.64 Ohms SMD/SMT 14.48 mm 13.3 mm 10.5 mm 1 MHz
Wurth Elektronik Current Transformers - Board Mount WE-CST 80uH 20A 1:2 DCR=.75mOhms
Datasheet
238In Stock
Min.: 1
Mult.: 1
: 750

Wurth Elektronik Current Transformers - Board Mount Current Sense Transformer 500uH, 20A, 1:50 Turns Ratio
Datasheet
644In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 750

PCB Mount 500 uH 20 A 1:50 1.4 Ohms SMD/SMT 7.7 mm 6.9 mm 5.33 mm
Wurth Elektronik Current Transformers - Board Mount WE-CST 980uH 20A 1:7 DCR=.75mOhms
Datasheet
191In Stock
Min.: 1
Mult.: 1
: 750

PCB Mount 980 uH 1:70 SMD/SMT 7.7 mm 6.9 mm 5.33 mm
Wurth Elektronik Current Transformers - Board Mount WE-CST 1.8mH 7A 1:150 DCR=21ohms
Datasheet
82In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

PCB Mount 1.8 mH 7 A 1:150 21 Ohms SMD/SMT 4.7 mm 4.65 mm 3.55 mm
Wurth Elektronik Current Transformers - Board Mount WE-CST 0.896mH 1:40 40A EE13/7/4 SMT
Datasheet
35In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 225

SMD/SMT 896 uH 40 A 1:40 130 mOhms SMD/SMT 14.48 mm 20.2 mm 10.5 mm 1 MHz
Wurth Elektronik Current Transformers - Board Mount WE-CST 5.6mH 1:100 40A EE13/7/4 SMT
Datasheet
315In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 225

SMD/SMT 5.6 mH 40 A 1:100 805 mOhms SMD/SMT 14.48 mm 13.3 mm 10.5 mm 1 MHz
Wurth Elektronik Current Transformers - Board Mount WE-CST 300mH 1:750 40A EE13/7/4 SMT
Datasheet
202In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 225

SMD/SMT 300 mH 40 A 1:750 50.1 Ohms SMD/SMT 14.48 mm 13.3 mm 10.5 mm 1 MHz
Wurth Elektronik Current Transformers - Board Mount WE-CST 2mH 10A 1:1 DCR=5.5Ohms
Datasheet
4,500Expected 29/5/2026
MouseReel Available
Min.: 1
Mult.: 1
: 750

PCB Mount 2 mH 10 A 1:100 5.5 Ohms SMD/SMT 7.7 mm 6.9 mm 5.33 mm
Wurth Elektronik Current Transformers - Board Mount WE-CST Current Sense Transformer
Datasheet
Non-Stocked Lead-Time 19 Weeks
Min.: 750
Mult.: 750
: 750

Wurth Elektronik Current Transformers - Board Mount WE-CST Current Sense Transformer
Datasheet
Non-Stocked Lead-Time 19 Weeks
Min.: 750
Mult.: 750
: 750

Wurth Elektronik Current Transformers - Board Mount WE-CST Current Sense Transformer
Datasheet
Non-Stocked Lead-Time 19 Weeks
Min.: 750
Mult.: 750
: 750

Wurth Elektronik Current Transformers - Board Mount WE-CST 3KuH 20A 1:125 DCR=.75mOhms
Datasheet
Non-Stocked Lead-Time 19 Weeks
Min.: 1
Mult.: 1
: 750

Wurth Elektronik Current Transformers - Board Mount WE-CST 74uH 7A 1:30 DCR=0.8ohms
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 2,000
Mult.: 2,000
: 2,000

PCB Mount 74 uH 7 A 1:30 800 mOhms SMD/SMT 4.7 mm 4.65 mm 3.55 mm
Wurth Elektronik Current Transformers - Board Mount WE-CST 132uH 7A 1:40 DCR=1.6ohms
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 2,000
Mult.: 2,000
: 2,000

PCB Mount 132 uH 7 A 1:4 1.6 Ohms SMD/SMT 4.7 mm 4.65 mm 3.55 mm
Wurth Elektronik Current Transformers - Board Mount WE-CST 295uH 7A 1:60 DCR=3.6ohms
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 2,000
Mult.: 2,000
: 2,000

PCB Mount 295 uH 7 A 1:60 3.6 Ohms SMD/SMT 4.7 mm 4.65 mm 3.55 mm
Wurth Elektronik Current Transformers - Board Mount WE-CST 1.28mH 7A 1:125 DCR=13ohms
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 2,000
Mult.: 2,000
: 2,000

PCB Mount 1.28 mH 7 A 1:125 13 Ohms SMD/SMT 4.7 mm 4.65 mm 3.55 mm