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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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Rohs Verified
SCF20-05-1100, KEMET
328 In Stock
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5 +
£ 5.33
50 +
£ 3.47
125 +
£ 3.31
Rohs Verified
SU7VC-05011, KEMET
3362 In Stock
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10 +
£ 0.95
Rohs Verified
DR331-474BE, Bourns
4498 In Stock
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1500 +
£ 0.34
TRACOPOWER
TCK-059, TRACOPOWER
Pre Order
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1 +
£ 2.80
5 +
£ 2.72
10 +
£ 2.64
Wurth Elektronik
Rohs Verified
744227S, Wurth Elektronik
Pre Order
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1000 +
£ 1.40
TRACOPOWER
TCK-046, TRACOPOWER
Pre Order
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1 +
£ 2.80
5 +
£ 2.72
10 +
£ 2.64
Rohs Verified
DLW43SH101XK2L, Murata
Pre Order
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500 +
£ 0.38
1000 +
£ 0.32
2000 +
£ 0.31
TRACOPOWER
TCK-072, TRACOPOWER
2 In Stock
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1 +
£ 4.93
5 +
£ 4.79
10 +
£ 4.64
TRACOPOWER
TCK-075, TRACOPOWER
19 In Stock
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1 +
£ 4.93
5 +
£ 4.79
10 +
£ 4.64
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SSHB10H-R04760, KEMET
368 In Stock
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5 +
£ 1.04
Rohs Verified
SSHB10HS-R22027, KEMET
112 In Stock
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5 +
£ 1.47
25 +
£ 1.28
Rohs Verified
SSHB21H-R25056, KEMET
592 In Stock
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5 +
£ 2.00
25 +
£ 1.78
Rohs Verified
SSHB21HS-03656, KEMET
36 In Stock
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5 +
£ 1.50
25 +
£ 1.41
50 +
£ 1.31
Rohs Verified
SSHB21HS-10145, KEMET
151 In Stock
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5 +
£ 2.10
25 +
£ 1.82
Rohs Verified
SSRH7H-M15043, KEMET
746 In Stock
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5 +
£ 1.11
50 +
£ 1.04
100 +
£ 0.97
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SSRH7HS-M10084, KEMET
598 In Stock
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5 +
£ 1.11
50 +
£ 0.96
Rohs Verified
DLW43SH510XK2L, Murata
5998 In Stock
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500 +
£ 0.38
1000 +
£ 0.32
2000 +
£ 0.31
Wurth Elektronik
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7448021230, Wurth Elektronik
Pre Order
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40 +
£ 4.15
Wurth Elektronik
Rohs Verified
7448025003, Wurth Elektronik
38 In Stock
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40 +
£ 4.16
Wurth Elektronik
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744833027110, Wurth Elektronik
Pre Order
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9 +
£ 9.78
Wurth Elektronik
Rohs Verified
744223, Wurth Elektronik
5998 In Stock
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1000 +
£ 0.55
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SSR10HS-22026, KEMET
242 In Stock
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60 +
£ 1.08
Rohs Verified
SSRH24NH-30145, KEMET
675 In Stock
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60 +
£ 0.91
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HHBC12-1R0A0028V, KEMET
Pre Order
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40 +
£ 2.21
RS Pro
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104-8400, RS Pro
28 In Stock
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5 +
£ 2.21
25 +
£ 1.94
100 +
£ 1.70
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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.