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744231121 The 744231121 is a 2-line common mode choke from Würth Elektronik, featuring 120Ω impedance at 100MHz, 370mA rated current, and 50V voltage rating. It is AEC-Q200 qualified for automotive applications.
Mfr Part #:

744231121

Available from 3 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
The 744231121 is a 2-line common mode choke from Würth Elektronik, featuring 120Ω impedance at 100MHz, 370mA rated current, and 50V voltage rating. It is AEC-Q200 qualified for automotive applications.
✓ Total Stock: 546 pcs
$ Price Range: $0.35 - $1.13

744231121 Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Speed Components Ltd ✓
Non-Authorised Inventory information
320 pcs
On Request
320 pcs On Request 1 On Request On Request 07+ On Request On Request
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
207 pcs
On Request
207 pcs On Request 1 On Request On Request On Request On Request On Request
Braun Electronic Components ✓
Non-Authorised Inventory information
19 pcs
On Request
19 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.

744231121 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)
Impedance @ Frequency
Mounting Type
Number of Lines
Operating Temperature
Ratings
Voltage Rating
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744231121 Description

Short technical summary and product information.

The 744231121 is a 2-line common mode choke (CMC) from Würth Elektronik's WE-CNSW series. It is designed for signal line filtering applications, providing common mode noise suppression. Key electrical specifications include 120Ω typical impedance at 100MHz, 0.166µH inductance, and a maximum DC resistance of 0.3Ω. The component is rated for 370mA continuous current with a 40K temperature rise and has a 50V voltage rating.

 

This common mode choke is qualified to AEC-Q200 Grade 1, making it suitable for automotive and harsh environment applications. It operates over a temperature range of -40°C to 125°C. The component is RoHS compliant, REACH conform, and halogen free.

 

The 744231121 is housed in a surface mount 0805 package with a horizontal, 4 PC pad configuration. Dimensions are 2.00mm length, 1.20mm width, and 1.40mm maximum height. It is designed for automated assembly and is compatible with standard reflow soldering processes.

744231121 Quick Information

Product Type: Common Mode Choke
Series: WE-CNSW
Canonical Name: WE-CNSW SMT Common Mode Line Filter
Subcategory: Common Mode Chokes

744231121 Compliance

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

744231121 Estimated Pricing

Qty Low High
1+ $1.13 $1.13
10+ $1.07 $1.07
50+ $1.00 $1.00
100+ $0.95 $0.95
500+ $0.91 $0.91
1,000+ $0.75 $0.75
2,000+ $0.35 $0.35

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

744231121 Features

  • 2-line common mode EMI suppression.
  • 120Ω impedance at 100 MHz.
  • Rated for 370 mA continuous current.
  • AEC-Q200 Grade 1 qualified.
  • Surface mount 0805 package.

744231121 Applications

  • Signal line common mode noise filtering.
  • Automotive electronics EMI suppression.
  • Industrial control system noise reduction.
  • DC power line common mode filtering.

744231121 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the 744231121?

50 V.

What is the package/case of this common mode choke?

Horizontal, 4 PC Pad, 0805 case code.

What is the operating temperature range?

-40°C to 125°C.

Is the 744231121 RoHS compliant?

Yes, RoHS compliant.

What is the impedance at 100 MHz?

120 Ω typical.

What is the rated current?

370 mA maximum at ΔT=40K.

Is this component qualified for automotive applications?

Yes, AEC-Q200 Grade 1 qualified.

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