Wurth Elektronik 20 mH Manganese Zinc Common Mode Choke, 2 A Idc, 220 mΩ Rdc 250V ac, WE-CMB
- RS Stock No.:
- 489-0352
- Distrelec Article No.:
- 301-89-721
- Mfr. Part No.:
- 744824220
- Manufacturer:
- Wurth Elektronik
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- RS Stock No.:
- 489-0352
- Distrelec Article No.:
- 301-89-721
- Mfr. Part No.:
- 744824220
- Manufacturer:
- Wurth Elektronik
Specifications
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Wurth Elektronik | |
| Inductance | 20mH | |
| Product Type | Common Mode Choke | |
| Maximum DC Current | 2A | |
| Mount Type | Radial | |
| Test Frequency | 50Hz | |
| Maximum DC Resistance | 220mΩ | |
| Lead Diameter | 1mm | |
| Automotive Standard | No | |
| Diameter | 27.5mm | |
| Height | 33mm | |
| Minimum Operating Temperature | -40°C | |
| Pin Count | 4 | |
| Core Material | Manganese Zinc | |
| Maximum Voltage | 250V ac | |
| Inductance Tolerance | ±30 % | |
| Maximum Operating Temperature | 125°C | |
| Lead Pitch | 10mm | |
| Standards/Approvals | VDE, RoHS, REACH, ENEC 10 | |
| Length | 27.5mm | |
| Termination Style | Solder | |
| Depth | 18.5mm | |
| Series | WE-CMB | |
| Select all | ||
|---|---|---|
Brand Wurth Elektronik | ||
Inductance 20mH | ||
Product Type Common Mode Choke | ||
Maximum DC Current 2A | ||
Mount Type Radial | ||
Test Frequency 50Hz | ||
Maximum DC Resistance 220mΩ | ||
Lead Diameter 1mm | ||
Automotive Standard No | ||
Diameter 27.5mm | ||
Height 33mm | ||
Minimum Operating Temperature -40°C | ||
Pin Count 4 | ||
Core Material Manganese Zinc | ||
Maximum Voltage 250V ac | ||
Inductance Tolerance ±30 % | ||
Maximum Operating Temperature 125°C | ||
Lead Pitch 10mm | ||
Standards/Approvals VDE, RoHS, REACH, ENEC 10 | ||
Length 27.5mm | ||
Termination Style Solder | ||
Depth 18.5mm | ||
Series WE-CMB | ||
Wurth Elektronik WE-CMB Series Common Mode Choke, 20mH Inductance, 250V AC Maximum Voltage - 744824220
This common mode choke is a radial, four-pin component designed to suppress differential and common-mode interference in AC systems up to 250V AC. It uses a manganese zinc core to provide the specified inductance and is intended for through-hole mounting with soldered leads. The component operates over a wide temperature span and carries multiple safety and environmental approvals for use in regulated applications.
Features and Benefits:
• 20mH inductance for effective high-frequency attenuation
• ±30% tolerance enabling predictable filtering performance
• 220mΩ maximum DCR for low insertion loss
• 2A maximum DC current supporting moderate-power circuits
• 125°C maximum operating temperature for elevated-heat environments
• ±30% tolerance enabling predictable filtering performance
• 220mΩ maximum DCR for low insertion loss
• 2A maximum DC current supporting moderate-power circuits
• 125°C maximum operating temperature for elevated-heat environments
Applications
• Suitable for mains EMI filtering in power supplies
• Ideal for suppression in switch-mode
• Used with industrial control equipment requiring noise reduction
• Can be used for audio-frequency interference mitigation in panels
• Suitable for retrofit filters where radial leads are required
• Ideal for suppression in switch-mode
• Used with industrial control equipment requiring noise reduction
• Can be used for audio-frequency interference mitigation in panels
• Suitable for retrofit filters where radial leads are required
What termination method does it use?
It features through-hole solder termination with 1mm lead diameter.
What lead spacing must the PCB accommodate?
The component requires a 10mm lead pitch for correct placement.
Which approvals indicate environmental and safety conformity?
It carries VDE, RoHS, REACH and ENEC 10 recognitions.
What core material influences magnetic properties?
The choke employs a manganese zinc core optimised for common-mode suppression.
What are the physical envelope temperature limits?
The operational range spans -40°C minimum to 125°C maximum.
Related links
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