DIP direct insertion custom coils high current common mode inductor power supply EMI filtering

 

        T22148 product adopts a regular layered winding process, featuring low leakage inductance and small switching spikes. It has excellent EMI interference suppression capability and can easily pass the overall machine EMC debugging. It has excellent DC biasing characteristics, with small inductance attenuation and low susceptibility to magnetic saturation under high current conditions, making it suitable for high-frequency power conversion circuits.

 

Product parameters

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Rated current	0.2mA	Inductance	4.7μH
DC resistance (DCR)	0.02Ω	Package	Non-standard
Operating temperature range	-40°C to 85°C	Shielding type	No shielding
Core material	Ferrite	Saturation current (lsat)	10mA
Self-resonant frequency (SRF)	10MHz	Test frequency	120Hz
Reactance (XL)	2Ω	Brand	CXWON

 

Common models

 

Core advantages of Inductor

1. High-quality iron-silicon-aluminum magnetic core material, with much lower loss in medium and high frequency ranges compared to iron core materials. The overall temperature rise is significantly lower, and the power conversion efficiency is greatly improved.
2. Distributed air gap structure design, with excellent DC bias performance. Under large current and full load conditions, the inductance attenuation is minimal, and the anti-magnetic saturation ability is strong.
3. Adopting regular layered winding process, the wiring is uniform and neat, with extremely low leakage inductance, effectively suppressing the sharp voltage spikes in the circuit.
4. Large-sized magnetic ring window is sufficient, suitable for thick wire diameter copper wire winding, with strong rated current carrying capacity, and suitable for medium and large power circuit conditions.
5. Ultra-low DCR DC resistance, with low copper loss. It does not get hot during long-term continuous operation, and the operational stability is fully achieved.

 

Flowchart

Why choose us

Q: What is the normal range of inductance for T22148?
A: The normal production inductance range is 10μH to 120μH. Customization with ±5% or ±10% tolerance is supported. The parameters can be precisely matched according to the number of circuit turns.

Q: What is the maximum current carrying capacity of T22148?
A: The normal rated current is 3A to 15A. The saturation current margin is sufficient. The specific current-carrying capacity can be customized and upgraded by adjusting the copper wire diameter.

Q: Why does T22148 have better EMI performance?
A: The regular layered winding process results in low leakage inductance and small switching spikes. It can effectively suppress high-frequency electromagnetic interference and significantly reduce the EMI radiation of the entire device, easily passing EMC debugging and certification.

Q: What are the advantages of T22148 compared to ordinary iron powder core magnetic rings?
A: The iron-silicon-aluminum material has lower high-frequency loss and lower temperature rise. It is less prone to magnetic saturation under high current, has stronger inductance stability, and has a much higher EMC pass rate than iron powder core products.

Q: How many insulation protection methods does T22148 have?
A: It supports three insulation schemes: bare ring, full coating with epoxy, and high-temperature heat shrinkable sleeve. These are suitable for different assembly processes, safety standards, and usage environment requirements.