Drawing Notes:
- A‑Outer diameter of product, B‑Product height, C‑Lead length, D‑Lead diameter, E‑Lead spacing
- Product equipped with sleeve (UL heat‑shrink tube)
Product Features: Adopts high‑frequency magnetic material, high‑current resistance & low DC resistance. With UL heat‑shrink tube or magnetic shielding encapsulation, it provides excellent mechanical protection and environmental protection.
DR Drum Core Inductor
Product Introduction
DR drum core inductor, also known as I‑shape inductor, is a radial through‑hole power choke coil built on ferrite drum core. Adopting open magnetic‑circuit structure, it delivers good energy‑storage and EMI filtering performance with cost‑effective advantages.
Qingda supplies complete DR series drum core inductors covering mainstream sizes: DR0406, DR0608, DR0810, DR1012, DR1215 and more. Inductance ranges from 1μH up to 10mH with various rated‑current options. Enameled copper wire is tightly wound on ferrite drum bobbin; finished products can be dipped varnish or sleeved for winding protection. Radial dual‑pin design supports convenient PCB through‑hole soldering, widely used for DC‑DC conversion, power input‑output filtering in electronic equipment.
Our drum core inductors feature high Q‑factor, low DC resistance and strong anti‑saturation capability. All Qingda DR inductors comply with RoHS lead‑free standards to satisfy global export electronic projects.
Key Features
- Radial through‑hole drum core / I‑shape structure
- Multiple standard sizes: DR0406, DR0608, DR0810, DR1012 etc.
- Wide inductance range: 1μH ~10mH
- High saturation current, low DCR, high Q value
- Varnish dipping or sleeve optional for coil protection
- Compact dimension, cost‑effective open‑core power choke
- RoHS & Lead‑free compliant
Typical Applications
LED driving power supplies, switching power adapters, household appliances, chargers, instrument modules, industrial control boards, lighting equipment and other power‑filter & energy‑storage circuits.