Spiral feedthrough capacitors L3325 manufacturers

  • Packing type: bulk
  • Rated voltage: 100 (V)
  • Tolerance: -20+80 (%)
  • Dielectric material: ceramic
  • Operating temperature range: -55+125
  • Lead type: Axial lead wire
  • Manufacturing material: ceramic medium


Spiral feedthrough capacitors L3325

Spiral feedthrough capacitors are mainly used to filter signal, data lines, and DC power lines; among them, micro-extrusion mounting or screw mounting is an ideal choice when welding is not suitable, and is suitable for microwave and other high-frequency applications.


There are several common circuit forms for EMI filters

There are many kinds of internal circuit forms of feedthrough capacitors. The combination of capacitors and ferrite beads according to different circuit structures can form C, LC, Pi, T-type filter circuits. These circuits provide different filtering characteristics. The more components of the filter, the shorter the transition band between passband and stopband, and the greater the insertion loss.

Type C filter, single capacitor structure. It is a low self-induction device that avoids high-frequency noise interference to the ground. It is suitable for signal line filtering and DC power line filtering, and is suitable for applications with high impedance sources and high loads.

LC type filter, this is an EMI filter with inductive and capacitive components. Different installation methods (directions) can be used for occasions with high source impedance and low load impedance, or low source impedance and high load impedance.

The Pi filter is composed of two capacitive elements and an inductive element between the two capacitive elements. Compared with C type, LC type structure provides better high frequency filtering performance. It is suitable for occasions where both the source impedance and load impedance are high and the interference suppression performance is high (insertion loss).

The T-type filter is composed of two inductive elements and one capacitive element. It is similar to the Pi-type filter structure, but it is not as widely used as the Pi-type filter. It is suitable for occasions where the source impedance and load impedance are low, and the interference suppression performance is high (insertion loss).

Our advantage:

  • We have a sound raw material cooperation system and cargo inspection mechanism.
  • Products with high stability, high temperature, small size, small tolerance and so on.
  • Product tolerances are strictly controlled between -15% to -10%.
  • We have the world’s most advanced production equipment, and improve the management process.
  • We can provide custom design of your needs and provide free sample for you.
  • Our products comply with the RoHS Directive and the factory conforms to the ISO 9001 management system.


Q1. Can i have some samples for capacitors?

A:  Yes, welcome sample to test and check quality,factory brand samples are free.

Q2. What about the lead time?

A:  The sample needs 3-5days, the mass products needs 2 weeks for order quantity.

Q3. How do you ship the goods and how long does it take to arrive?

A:   We usually ship by DHL,UPS,FEDEX or TNT, it usually takes 3-5 days to arrive.Airline and sea shipping also optional.

Q4. Is it OK to print my logo on capacitor?

A:   Yes,pls inform us formally before our production and confirm the design firstly based on our sample

Q5. Do you offer guarantee for the products?

A:   Yes,we offer 2-3years warranty to our products.

Q6. How to deal with the faulty?

A:   If the item you purchase from factory beacuse of quality problems, you can return them to us for replacement or refund. And any items returned must be in their original condition to qualify for a refund or replacement.

If you have any interesting and problems, please feel free to contact us!

Contact Us

Email: filmcap@xuanxcapaciors.com

Ph/(whatsapp): +86-18825879082

Skype: Coco.PSH

Website: xuanxcapacitors.com