744777133 The Würth Elektronik 744777133 is a 33 µH shielded wirewound power inductor rated for 1.13 A with a maximum DC resistance of 170 mOhm. It is housed in a 7345 SMD package and qualified to AEC-Q200 for automotive applications.
Mfr Part #:

744777133

Available from 2 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
The Würth Elektronik 744777133 is a 33 µH shielded wirewound power inductor rated for 1.13 A with a maximum DC resistance of 170 mOhm. It is housed in a 7345 SMD package and qualified to AEC-Q200 for automotive applications.
Total Stock: 629 pcs
$ Price Range: $1.33 - $2.36

744777133 Available from 2 distributors

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744777133 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current Rating (Amps)
DC Resistance (DCR)
Frequency
Halogen Free
Height
Inductance
Length
Material
Mounting Type
Operating Temperature
Operating Voltage
Performance Rated Current
Ratings
Saturation Current (Typical @ |ΔL/L| < 30%)
Shielding
Supplier Device Package
Tape & Reel
Termination Style
Tolerance
Type
Width

744777133 Description

Short technical summary and product information.

The Würth Elektronik 744777133 is a surface-mount shielded power inductor from the WE-PD series. It features a ferrite drum core with wirewound construction, providing an inductance of 33 µH at 1 kHz and 250 mV with a tolerance of ±20%. The component is rated for a continuous current of 1.13 A based on a 40 K temperature rise, with a performance rated current of 1.9 A per IEC 62024-2-2020 Class C. Saturation current is typically 1.4 A at 10% inductance drop and 1.7 A at 30% drop.

 

The inductor offers a typical DC resistance of 140 mOhm and a maximum of 170 mOhm, with a self-resonant frequency of 13 MHz. It is designed for a maximum operating voltage of 120 V and operates over a temperature range of -40 °C to +125 °C. The component is shielded to minimize electromagnetic interference and is qualified to AEC-Q200 Grade 1 for automotive reliability.

 

Packaged in a 7345 (Nonstandard) SMD format measuring 7.3 mm x 7.3 mm with a maximum height of 4.5 mm, this inductor is suitable for power supply and DC-DC converter circuits in space-constrained designs. It is RoHS, REACH, and halogen-free compliant, with an MSL of 1 for unlimited floor life.

744777133 Quick Information

Product Type: Fixed Inductor
Series: WE-PD
Canonical Name: Würth Elektronik WE-PD 744777133 SMT Shielded Power Inductor, 33 µH, 1.13 A, 170 mOhm
Subcategory: Fixed Inductors

744777133 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: Conform or declared

744777133 Estimated Pricing

Qty Low High
1+ $2.36 $2.36
10+ $2.10 $2.10
50+ $1.95 $1.95
100+ $1.88 $1.88
250+ $1.37 $1.37
500+ $1.34 $1.34
1,000+ $1.33 $1.33

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

744777133 Features

  • Shielded ferrite core wirewound construction.
  • Rated current of 1.13 A at 40 K rise.
  • AEC-Q200 qualified for automotive use.
  • Low 170 mOhm maximum DC resistance.
  • Compact 7345 SMD package (7.3 mm square).

744777133 Applications

  • Ideal for DC-DC converter output filtering.
  • Used in automotive power management systems.
  • Suitable for EMI-sensitive power supply designs.
  • Applicable in industrial and consumer electronics.

744777133 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance value and tolerance of the 744777133?

The inductance is 33 µH at 1 kHz and 250 mV, with a tolerance of ±20%.

What is the rated current of this inductor?

The rated current is 1.13 A maximum, based on a temperature rise of 40 K. The performance rated current per IEC 62024-2-2020 Class C is 1.9 A maximum.

What is the DC resistance (DCR) of the 744777133?

The typical DC resistance is 140 mOhm, with a maximum of 170 mOhm at 20 °C.

What is the self-resonant frequency of this inductor?

The typical self-resonant frequency is 13 MHz.

What is the package size and mounting type?

The package is 7345 (Nonstandard) measuring 7.3 mm x 7.3 mm with a maximum height of 4.5 mm. It is a surface-mount device.

Is the 744777133 qualified for automotive applications?

Yes, it is AEC-Q200 qualified (Grade 1).

What is the operating temperature range?

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

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