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744821120 The 744821120 is a common mode choke from Würth Elektronik with 20mH inductance, 500mA rated current, and 250V AC voltage rating. It features a through hole vertical package with 4 PC pins.
Mfr Part #:

744821120

Available from 1 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
The 744821120 is a common mode choke from Würth Elektronik with 20mH inductance, 500mA rated current, and 250V AC voltage rating. It features a through hole vertical package with 4 PC pins.
✓ Total Stock: 14,911 pcs
$ Price Range: $2.63 - $3.87

744821120 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Braun Electronic Components ✓
Non-Authorised Inventory information
14,911 pcs
On Request
14911 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

744821120 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current Rating
Current Rating (Max)
DC Resistance (DCR)
DC Resistance (DCR) (Max)
Filter Type
Height (Max)
Inductance @ Frequency
Mounting Type
Number of Lines
Operating Temperature
Voltage Rating
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744821120 Description

Short technical summary and product information.

The 744821120 is a common mode power line choke from Würth Elektronik's WE-CMB series. It is designed for filtering common mode noise in power supply lines. The component offers an inductance of 20mH at 10kHz, with a tolerance of ±30%. The rated current is 500mA maximum at 70°C ambient temperature, and the DC resistance is 1 Ohm maximum. The insulation test voltage is 1500V AC. The operating temperature range is -40°C to +125°C. The component is mounted through hole with a vertical package style and 4 PC pins. Dimensions are 15mm length, 7.5mm width, and 17.5mm height maximum. It is RoHS compliant and has VDE and ENEC approvals.

744821120 Quick Information

Product Type: Common Mode Choke
Series: WE-CMB
Canonical Name: 744821120 Common Mode Power Line Choke
Subcategory: Through Hole Vertical Common Mode Choke

744821120 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 75
REACH Status: REACH Unaffected

744821120 Estimated Pricing

Qty Low High
1+ $3.87 $3.87
10+ $3.81 $3.81
50+ $3.02 $3.02
100+ $2.89 $2.89
300+ $2.63 $2.63

Estimated market price range - modelled values for guidance only, not live distributor offers.

744821120 Features

  • 20mH inductance at 10kHz.
  • 500mA rated current maximum.
  • 250V AC rated voltage.
  • Through hole vertical mounting.
  • VDE and ENEC approved.

744821120 Applications

  • Used in power line EMI filtering.
  • Suitable for switch-mode power supplies.
  • Ideal for common mode noise suppression.
  • Applicable in industrial electronics.
  • Compatible with AC line filtering.

744821120 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the 744821120?

The rated voltage is 250V AC at 50Hz.

What is the package type of the 744821120?

Through hole, vertical, 4 PC pin package.

What is the operating temperature range of the 744821120?

The operating temperature range is -40°C to +125°C.

Is the 744821120 RoHS compliant?

Yes, it is compliant with 2011/65/EU and 2015/863.

What is the inductance of the 744821120?

The inductance is 20 mH at 10 kHz, with a tolerance of ±30%.

What is the current rating of the 744821120?

The rated current is 500 mA maximum at 70°C ambient temperature.

What approvals does the 744821120 have?

The component has VDE approval 40042670 and ENEC 10 approval 40042670.

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