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Common Mode Chokes

Common mode (CM) chokes are a kind of electrical filter designed to reduce unnecessary interfaces by blocking high-frequency noise while allowing the desired signals to pass. Devices like inverters, motors, unshielded electronics, or unwanted signals are common mode noise current sources. CM chokes are essential to reduce such noise as this may cause electronic and electrical circuit problems. 

Why are Common Mode Chokes Important?

Common mode chokes are indispensable tools to use as they help prevent electromagnetic interference (EMI) and radio frequency interface (RFI). These versatile devices help stop your electronic devices from malfunctioning and prevent them from causing problems during operation. 

Factors Necessary for CM Choke Selection

Before you intend to buy a CM choke, it is crucial to consider the following criteria for your desired device. They include:

  • Impedance (noise attenuation)
  • Frequency bandwidth, and 
  • Current handling (amount of current needed to handle the CM choke)

What are the Typical Uses of Common Mode Choke?

Common mode chokes have a wide range of applications in electrical, industrial, and telecommunication applications to help reduce or remove noise and electromagnetic interference. They can be found in:

Why Enrgtech?

Enrgtech stocks a wide range of common mode chokes with various inductance values and robust attenuation over a wide frequency range. Visit our website to get your desired product or other products at reasonable prices on a market with efficient delivery.


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SC-02-D100, KEMET
538 In Stock
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5 +
£ 1.97
50 +
£ 1.34
250 +
£ 1.16
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SS11VL-05230, KEMET
182 In Stock
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5 +
£ 1.27
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SSHB10HS-R17046, KEMET
21 In Stock
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5 +
£ 1.47
25 +
£ 1.28
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SSHB21H-03770, KEMET
149 In Stock
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5 +
£ 2.10
25 +
£ 1.89
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SSHB21H-20046, KEMET
Pre Order
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5 +
£ 2.27
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SSHB21HS-08200, KEMET
156 In Stock
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5 +
£ 2.12
25 +
£ 1.84
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DR331-475BE, Bourns
4498 In Stock
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1500 +
£ 0.30
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SRF0602-101Y, Bourns
Pre Order
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1000 +
£ 0.67
Wurth Elektronik
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744822110, Wurth Elektronik
13 In Stock
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1 +
£ 3.33
10 +
£ 3.20
50 +
£ 2.56
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DLW31SN102SQ2L, Murata
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2000 +
£ 0.34
Schaffner
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RD5132-16-1M0, Schaffner
Pre Order
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105 +
£ 10.49
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SCF25XV-110-1R4A013JV, KEMET
171 In Stock
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35 +
£ 6.81
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SCF25XV-170-1R7A009JH, KEMET
238 In Stock
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30 +
£ 7.03
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SCF29XV-050-1R0A044JH, KEMET
143 In Stock
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20 +
£ 7.60
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SCF29XV-080-1R3A026JH, KEMET
155 In Stock
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20 +
£ 7.65
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SCF29XV-150-1R7A015JH, KEMET
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20 +
£ 7.75
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SCF29XV-180-1R8A013JH, KEMET
135 In Stock
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20 +
£ 7.88
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SCF29XV-200-2R0A011JV, KEMET
208 In Stock
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30 +
£ 8.36
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SCF29XV-210-2R1A010JH, KEMET
184 In Stock
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20 +
£ 8.63
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SCF29XV-250-2R2A008JV, KEMET
232 In Stock
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30 +
£ 7.87
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SCF19XV-100-1R1A009JV, KEMET
512 In Stock
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42 +
£ 4.47
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SCF19XV-190-1R5A005JH, KEMET
263 In Stock
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30 +
£ 4.87
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SCF19XV-220-1R6A004JV, KEMET
360 In Stock
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42 +
£ 4.71
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SCF25XV-050-1R0A027JV, KEMET
357 In Stock
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35 +
£ 6.79
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SCF25XV-070-1R1A022JV, KEMET
138 In Stock
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35 +
£ 6.79
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FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Common Mode Chokes and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Common Mode Chokes or any other product.
This depends on the Common Mode Chokes individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Common Mode Chokes and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Common Mode Chokes.
Yes. We keep updating our stock frequently and if a product like Common Mode Chokes is not in stock then we will let you know.