T8 Series Toroidal Power Inductor Common Mode Choke For Inverter UPS OBC
T8 Series High Current Toroidal Inductor / Common Mode Choke
T8 Series toroidal inductors and common mode chokes are custom-wound magnetic components built on a coated toroidal core with 100% pure copper enameled wire. Mounted on a flame-retardant plastic base with through-hole pins, they deliver low core loss, high saturation current and strong EMI/EMC suppression in a compact PCB footprint - a reliable choice for switching power supplies, solar inverters, UPS systems, EV on-board chargers (OBC), LED drivers, and industrial control equipment.
Every unit is engineered to the customer's electrical drawing: inductance, current rating, wire gauge, number of turns, core material and pin layout are all made to order. Free technical drawings are provided within 3 working days and samples within 7 days.
- Pure copper winding - full-copper enameled wire (no CCA), lower DCR, lower temperature rise and higher current-carrying capability.
- Toroidal core structure - closed magnetic path means minimal flux leakage, low EMI radiation and excellent common mode noise attenuation over a wide frequency band.
- High-voltage safety verified - Hi-Pot test 1500~3000VAC / 1 minute (wire to wire), no breakdown, no flashover.
- UL recognized raw materials, fully RoHS and REACH compliant - ready for EU, North America and global markets.
- Robust mechanical design - core fixed with epoxy/adhesive on a high-temperature plastic base; vertical or horizontal through-hole mounting to suit your PCB layout.
- 100% customizable - inductance, rated current, core material (ferrite / sendust / high flux / iron powder / nanocrystalline), wire diameter, pin count and pin pitch all built to your specification.
- Wide operating temperature - designed for -40°C to +125°C environments (subject to final material selection).
| Product Name | High Current Toroidal Inductor / Common Mode Choke |
|---|---|
| Model Number | T8 Series (customized part number available) |
| Core Type | Coated toroidal core - ferrite / sendust / high flux / iron powder / nanocrystalline (optional) |
| Winding Wire | 100% pure copper enameled wire (TIW / triple insulated wire optional) |
| Inductance | 1mH - 50mH - customized to drawing |
| Inductance Tolerance | ±10% / ±20% |
| Rated Current | 1A - 20A - customized |
| DC Resistance (DCR) | per drawing |
| Test Frequency | 10kHz / 100kHz, 0.25V |
| Hi-Pot Test | 1500~3000VAC / 1 minute (wire to wire) |
| Mounting Type | Through hole (vertical / horizontal) |
| Pin Configuration | 4-pin plastic base (2/5/6 pin available on request) |
| Operating Temperature | -40°C to +125°C |
| Certification | UL recognized material, RoHS, REACH |
| Place of Origin | China |
| Sample Lead Time | 7 days (technical drawing within 3 days) |
- Switching mode power supplies (SMPS), adapters and chargers
- Solar / PV inverters and energy storage systems (ESS)
- UPS and industrial power equipment
- EV on-board chargers (OBC), DC-DC converters and charging piles
- LED drivers and lighting power modules
- EMI / EMC input filters, home appliances and automation control boards
- Engineering support, not just parts - send us your circuit conditions (input voltage, switching frequency, current, space limit) and our engineers recommend the right core material and winding structure.
- Fast response - drawing in 3 days, sample in 7 days, mass production scheduled right after your sample approval.
- Full-process QC - incoming material inspection, in-process control, 100% LCR and Hi-Pot testing before shipment.
- Flexible order model - MTO (make-to-order) production with stable monthly capacity; OEM / ODM welcome.
- Export-ready packing - anti-static tray or blister + carton, safe for air and sea freight worldwide.
A: A power inductor stores energy and smooths current on a single winding, while a common mode choke uses two symmetrical windings on one toroidal core to cancel common mode noise. The T8 series can be wound in either configuration on the same core platform.
A: Yes. Send us your drawing, specification sheet or a physical sample and we will reverse-engineer it and quote within 24-48 hours.
A: MOQ is flexible and depends on the specification. Trial orders and small-batch pilot runs are accepted.
A: Yes - inductance, DCR, saturation current, temperature rise and Hi-Pot test reports can be supplied with each shipment, together with RoHS / REACH declarations.
A: Technical drawing within 3 working days and physical samples within 7 working days after specification confirmation.
Need a custom toroidal inductor or common mode choke? Send us your inductance, rated current and dimension limit - our engineering team will reply with a drawing and quotation within 24 hours.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.