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7427521 Common mode choke for power and signal line filtering. Features 19A max current, 52Ω common mode impedance at 100MHz, and surface mount 0302 package.
Mfr Part #:

7427521

Available from 2 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
Common mode choke for power and signal line filtering. Features 19A max current, 52Ω common mode impedance at 100MHz, and surface mount 0302 package.
✓ Total Stock: 3,336 pcs
$ Price Range: $1.91 - $2.53

7427521 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Partservice ✓
Non-Authorised Inventory information
2,100 pcs
On Request
2100 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,236 pcs
On Request
1236 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.

7427521 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
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7427521 Description

Short technical summary and product information.

The Würth Elektronik 7427521 is a surface mount common mode choke (CMC) in the WE-CMS series, designed for EMI suppression in power and signal lines. It offers two lines of common mode filtering with a nominal impedance of 52 Ω at 100 MHz (±25% tolerance) and 34 Ω at 25 MHz. The component is rated for a maximum continuous current of 19 A (ΔT = 40 K, common mode) and a DC resistance of 3 mΩ maximum. For applications requiring higher common mode attenuation, winding the conductor two turns through the bead increases typical impedance to 211 Ω at 100 MHz and 136 Ω at 25 MHz. The rated voltage is 80 V DC. Housed in a 0302 (0805 metric) package measuring 8.50 mm x 5.60 mm with a maximum height of 3.20 mm, the device supports surface mount assembly. It is qualified to AEC-Q200 Grade 1 for automotive applications and is RoHS, REACH, and halogen free compliant. Operating temperature range is -40 °C to 125 °C.

7427521 Quick Information

Product Type: Common Mode Choke
Series: WE-CMS
Canonical Name: Common Mode Choke, 19A, 2 Lines, 52 Ohm, SMD

7427521 Compliance

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

7427521 Estimated Pricing

Qty Low High
1+ $2.53 $2.53
10+ $2.48 $2.48
50+ $2.39 $2.39
100+ $2.29 $2.29
500+ $2.20 $2.20
1,000+ $2.10 $2.10
2,400+ $1.91 $1.91

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

7427521 Features

  • 19A maximum rated current at 40K rise.
  • 52Ω common mode impedance at 100MHz.
  • Surface mount 0302 (0805 metric) package.
  • AEC-Q200 Grade 1 automotive qualified.
  • RoHS, REACH, and halogen free compliant.

7427521 Applications

  • Power line common mode noise filtering.
  • Signal line EMI suppression in automotive.
  • DC/DC converter input/output filter.
  • Industrial and consumer power electronics.

7427521 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the rated voltage of the 7427521?

80 V DC.

What is the package size of this common mode choke?

0302 (0805 Metric); dimensions 8.50 mm x 5.60 mm, maximum height 3.20 mm.

What is the operating temperature range?

-40°C to +125°C.

Is the 7427521 RoHS compliant?

Yes, RoHS3 compliant (2011/65/EU & 2015/863).

What is the common mode impedance at 100 MHz?

52 Ω (±25% tolerance).

What is the maximum DC resistance?

3 mΩ maximum.

What is the moisture sensitivity level (MSL)?

MSL 1 (Unlimited).

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