Inductors and chokes store energy, shape waveforms, and suppress EMI in modern electronics. Nanjing Infinity Technology, a China‑based high‑tech manufacturer founded in 2003, designs and supplies high‑frequency magnetic components for global B2B markets. In‑house R&D and production enable fast prototypes, free samples, and reliable series supply for power, industrial, automotive, telecom, computing, medical, new energy, and aerospace.
Types of Inductors and Chokes We Manufacture
We offer a broad portfolio tailored by function, frequency, current, and EMC goals. Core options include ferrite and powdered iron with optimized windings for low loss and stable inductance. Standard radial and toroidal constructions are available, with custom shielding, lead pitch, and form factors on request.
Power Inductors
High Current Power inductors for DC‑DC converters and power rails feature low DCR, high saturation current, and predictable thermal rise. Options include radial wire‑wound and compact rod‑core styles. We tune core mix, turns, and wire gauge to meet ripple current, SRF, and efficiency targets.
Common Mode Chokes
Miniaturized SMT Common mode chokes suppress line‑borne noise while preserving differential signals. SQ, ET, and UU frames address AC mains, DC distribution, and data or power interfaces. Designs emphasize controlled parasitics, low leakage inductance, and impedance profiles aligned with real noise spectra and EMC standards. Toroidal versions minimize stray fields in compact layouts.
Applications for Inductors and Chokes
Typical uses include DC‑DC modules, PFC stages, inverters, motor drives, chargers, and UPS inputs. Telecom and networking deployments cover base stations, RRUs, and PoE interfaces. We also support servers, medical equipment, security electronics, and aerospace. Designs account for thermal management, vibration, creepage and clearance, and documentation for regulated markets.
How to Select Inductors and Chokes
| Selection Factor | Why It Matters | Key Considerations |
| Inductance & Tolerance | Sets ripple and filter corner | DC bias shift, temperature stability |
| Current & Saturation | Limits heating and nonlinearity | Peak/RMS current, duty cycle |
| DCR & Loss | Impacts efficiency and temperature rise | Wire gauge, core material, frequency |
| SRF & Q | Ensures intended frequency behavior | Keep SRF above operating band |
| EMI Mode | Meets emissions targets | Common vs differential, shielding |
| Mechanical & Safety | Assures fit and compliance | Mounting, creepage/clearance, vibration |
Quick checklist: frequency, inductance and tolerance, peak and RMS current, DCR/SRF goals, EMI mode, dimensions, and safety requirements.
Customization and Quality for Inductors and Chokes
We provide OEM/ODM engineering with co‑design, simulation, and rapid prototyping. Testing covers inductance, tolerance, DCR, saturation current, thermal rise, and hipot as required. Operations follow ISO9001, with UL, CE, and RoHS support where applicable. Automotive‑oriented validation is available on request.
Request Samples or a Quote for Inductors and Chokes
Accelerate your design with a dedicated Inductors and Chokes manufacturer. Send your target inductance, tolerance, peak/RMS current and ripple, DCR/SRF goals, frequency, core preference, dimensions, temperature range, insulation needs, and applicable standards. Our engineers will propose a standard fit or a tailored design, with free samples for validation.
