744834433 Würth Elektronik 744834433 is a 2-line common mode power line choke with 3.3 mH inductance and 5 A rated current. It features through-hole mounting in a horizontal 4-pin package.
Mfr Part #:

744834433

Available from 2 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
Würth Elektronik 744834433 is a 2-line common mode power line choke with 3.3 mH inductance and 5 A rated current. It features through-hole mounting in a horizontal 4-pin package.
✓ Total Stock: 308 pcs
$ Price Range: $4.56 - $6.72

744834433 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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306 pcs
306 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2 pcs
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744834433 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

744834433 Description

Short technical summary and product information.

The Würth Elektronik 744834433 is a common mode power line choke from the WE-CMBH series, designed for filtering common mode noise in power supply lines. It has a nominal inductance of 3.3 mH (measured at 10 kHz, 0.1 mA, ±30% tolerance) and a rated current of 5 A at 70°C ambient temperature. The DC resistance is a maximum of 37 mΩ at 20°C, and the rated voltage is 250 V AC at 50 Hz.

 

This choke features two lines (windings) and is housed in a horizontal, 4-pin through-hole package with a size code of L. The package dimensions are 32.5 mm length, 28.0 mm width, and a maximum height of 22.0 mm. The lead spacing is 27.5 mm between rows and 12.5 mm between pins within a row, with a pin diameter of 0.8 mm and a lead length of 3.5 mm. The recommended PCB hole diameter is 1.2 mm.

 

The component operates over a temperature range of -40°C to +125°C, with a maximum temperature rise of 55 K. It is rated for an insulation test voltage of 1500 V AC (50 Hz, 5 mA, 2 seconds). The choke is RoHS compliant, REACH conform, halogen-free, and has VDE and ENEC approvals (approval number 40042670). It is suitable for general electronic equipment requiring common mode noise suppression in power lines.

744834433 Quick Information

Product Type: Common Mode Choke
Series: WE-CMBH
Canonical Name: Common Mode Power Line Choke, 3.3 mH, 5 A, 2-Line, Through Hole
Subcategory: Power Line Choke

744834433 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): Level 1
REACH Status: REACH Unaffected

744834433 Estimated Pricing

Qty Low High
1+ $6.72 $6.72
10+ $6.61 $6.61
105+ $5.24 $5.24
280+ $5.02 $5.02
560+ $4.56 $4.56

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

744834433 Features

  • 3.3 mH inductance at 10 kHz.
  • 5 A rated current at 70°C.
  • 37 mΩ maximum DC resistance.
  • 250 V AC rated voltage.
  • Through-hole horizontal 4-pin package.

744834433 Applications

  • Suppresses common mode noise in power lines.
  • Used in switch-mode power supply input filtering.
  • Suitable for general electronic equipment.
  • Filters EMI in AC/DC converter circuits.

744834433 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance of the 744834433 common mode choke?

The inductance is 3.3 mH, measured at 10 kHz with 0.1 mA test current, with a tolerance of ±30%.

What is the rated current of this choke?

The rated current is 5 A maximum, specified at an ambient temperature of 70°C.

What is the operating temperature range?

The operating temperature range is -40°C to +125°C. The ambient temperature for rated current is -40°C to +70°C.

Is the 744834433 RoHS compliant?

Yes, it is RoHS compliant according to directive 2011/65/EU and 2015/863.

What is the package type and mounting style?

It uses a horizontal 4-pin through-hole package (size code L) with PC pin termination.

What is the DC resistance of this choke?

The maximum DC resistance is 37 mΩ, measured at 20°C.

What is the rated voltage of this choke?

The rated voltage is 250 V AC, tested at 50 Hz.

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