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Surface Mount Common Mode Choke with 60Ω to 1400Ω Impedance, 3.2A Rated Current, and Compact SMD Package for EMI Suppression

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Surface Mount Common Mode Choke with 60Ω to 1400Ω Impedance, 3.2A Rated Current, and Compact SMD Package for EMI Suppression
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Features
Specifications
Highlight:

60Ω to 1400Ω Impedance Common Mode Choke

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3.2A Rated Current Surface Mount Choke

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Compact SMD Package EMI Suppression Choke
Basic Infomation
Place of Origin: China
Brand Name: SHINHOM
Certification: RoHS
Model Number: SQD4520 Series
Document: SQD4520 Series_.pdf
Payment & Shipping Terms
Delivery Time: 2~8weeks
Payment Terms: L/C,T/T
Product Description
Surface-Mount Common Mode Chokes SQD4520 Series
Engineered for effective electromagnetic interference (EMI) filtering in modern electronic circuits, the SQD4520 series of surface mount chokes provides robust EMI suppression performance in a compact, low-profile package. Utilizing a durable ferrite core bobbin construction, these common mode chokes offer high impedance at 100MHz, effectively attenuating unwanted common-mode noise while allowing differential signals to pass with minimal loss. Designed for high-current applications, they combine excellent frequency performance with superior mechanical strength and solderability, making them a reliable and cost-effective solution for meeting EMC compliance in a wide range of power and data line interfaces.
Key Specifications
Impedance @100MHz60Ω Min to 1400Ω Typ (model dependent)
DC Resistance (DCR)35mΩ to 80mΩ Max
Rated CurrentUp to 3.2A Max
Rated Voltage50V Max
Operating Temperature-40°C to +125°C
Product Features
  • Compact SMD package with robust mechanical construction
  • Excellent high-frequency performance and solderability
  • High impedance for effective common-mode noise suppression
  • Low DC resistance for minimal signal loss
  • Designed for high-current applications
Applications
  • EMI filtering in DC/DC and AC/DC power converters
  • Noise suppression for video cameras and LCD televisions
  • Signal integrity enhancement in communication and network systems
  • Automotive electronics for conducted noise reduction
  • Data line filtering in hard disk drives (HDDs) and storage devices
Frequently Asked Questions
What is the primary function of a common mode choke?
Its primary function is to suppress common-mode electromagnetic interference (EMI) by providing high impedance to unwanted noise currents flowing in the same direction on a pair of lines, while offering low impedance to the desired differential signal.
How do I select the right impedance value for my application?
Selection depends on the frequency spectrum of the noise you need to suppress. The SQD4520 series offers a range from 60Ω to 1400Ω (Typ @100MHz). Higher impedance provides greater attenuation at the test frequency. Refer to your circuit's noise profile and EMC standards.
What does the rated current parameter signify?
The rated current is the maximum continuous current the choke can handle without exceeding its thermal or performance specifications. It's crucial to ensure the choke's current rating meets or exceeds the normal operating current of your circuit.
Are these chokes suitable for automotive applications?
Yes, with an operating temperature range of -40°C to +125°C and robust construction, they are well-suited for various automotive electronic systems where reliable EMI filtering is required.
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