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The DR 8055 Radial Leaded Wire Wound Inductor is a high-performance passive component developed by Infinity Electronics, specialized in EMI suppression and power filtering for industrial electronics. As a professional 8055 Filter Choke Inductor, it adopts a high-saturation magnetic core and radial through-hole design, combining compact size with excellent current handling capacity (up to 8.5A). This High Saturation Core Radial Inductor is engineered to avoid core saturation under high DC current conditions, a common pain point in SMPS design that causes efficiency loss and overheating. With 8 standard inductance models ranging from 100μH to 4700μH, the inductor provides versatile options for low-to-medium voltage power electronics. The EMI Suppression Wire Wound Inductor features low DC resistance and a high self-resonant frequency, ensuring superior filtering performance and signal integrity in power line and signal line applications. Its radial leaded structure enables easy through-hole soldering, suitable for automated PCB assembly and widely used in industrial SMPS and EMI filter designs.
Equipped with a high-saturation magnetic core, the DR 8055 Radial Leaded Wire Wound Inductor maintains inductance stability even when the current exceeds the rated value (10% inductance drop at saturation current), avoiding the nonlinear distortion and overheating caused by core saturation in traditional inductors. This feature is crucial for the reliable operation of DC-DC converters and switching power supplies.
The inductor supports a maximum rated current of 8.5A, with a low DC resistance design that minimizes power loss and heat generation. For example, the 100μH model has a DC resistance of only 1Ω, ensuring high energy efficiency in high-current applications.
The compact radial leaded structure of the Radial Leaded Filter Choke for SMPS saves PCB space and is compatible with automatic insertion and soldering processes, improving production efficiency and reducing assembly costs for customers.
With a high self-resonant frequency (1.3MHz-9.4MHz across models), the inductor effectively suppresses high-frequency electromagnetic interference in signal and power lines, meeting the EMC requirements of industrial electronic equipment and reducing system noise.
Offering 8 standard inductance values from 100μH to 4700μH, the inductor covers the filtering needs of most low-to-medium voltage SMPS and EMI filters, eliminating the need for custom mold development for general applications and shortening product R&D cycles.
Order Code | Inductance L (μH) | Rated Current IR (A) | 10% Saturation Current ISAT (A) | Max DC Resistance (Ω) | Self-Resonant Frequency fres (MHz) |
INF-8055-100μH | 100 | 1.1 | 1.2 | 1 | 9.4 |
INF-8055-220μH | 220 | 0.66 | 0.88 | 1.5 | 6 |
INF-8055-330μH | 330 | 0.5 | 0.77 | 2 | 5.1 |
INF-8055-470μH | 470 | 0.44 | 0.58 | 3 | 4.3 |
INF-8055-680μH | 680 | 0.33 | 0.51 | 4 | 3.3 |
INF-8055-1000μH | 1000 | 0.29 | 0.41 | 6 | 2.7 |
INF-8055-2200μH | 2200 | 0.21 | 0.28 | 11 | 1.9 |
INF-8055-4700μH | 4700 | 0.15 | 0.19 | 25 | 1.3 |
The EMI Suppression Wire Wound Inductor is the core component of signal and power line filtering, effectively suppressing high-frequency noise and electromagnetic interference, and ensuring the stable transmission of signals and power in industrial control systems and communication equipment.
As a dedicated Radial Leaded Filter Choke for SMPS, it is widely used in low-to-medium voltage switching power supplies (such as 12V/24V/48V industrial power supplies), providing energy storage and ripple filtering to improve the stability and efficiency of power supplies.
It is applied to the filtering circuit of power switching devices (MOSFET/IGBT), reducing the current ripple of switching devices, lowering switching loss, and extending the service life of devices.
The inductor is suitable for various industrial power electronics (frequency converters, UPS, power adapters) and consumer electronics (home appliances, smart devices) that require EMI suppression and power filtering, with broad application prospects.
The DR 8055 Radial Leaded Wire Wound Inductor complies with international environmental and safety standards for passive components, ensuring market access and product reliability:
RoHS 2.0 (2011/65/EU): Complies with the latest hazardous substance restriction requirements, with no lead, cadmium, or other prohibited substances in the production process.
REACH (EC 1907/2006): Meets the SVHC high-concern substance limits (≤0.1%), and the product material report is updated in real time with the latest SVHC list.
WEEE (2012/19/EU): Complies with the EU waste electrical and electronic equipment recycling regulation, with standardized product marking for easy recycling and disposal.
IEC 60384-1: Adheres to the international standard for fixed inductors for electronic equipment, with passed high-temperature, vibration, and aging tests.
In addition to the 8 standard models, we provide customized services for the DR 8055 Radial Leaded Wire Wound Inductor, including custom inductance values, rated current, and DC resistance, to meet the special filtering and energy storage requirements of customers’ customized products.
We offer tiered price discounts for bulk orders, with a stable supply chain and large inventory of standard models to ensure on-time delivery. For long-term cooperative customers, we provide exclusive stock reservation services to avoid supply chain risks.
Support OEM/ODM customization, including custom product marking, packaging, and lead length. Our R&D team provides professional technical solutions, including filter circuit design, inductor selection guidance, and EMC testing optimization, to help customers solve EMI and power filtering problems.
