Company News

Ⅰ.Overview of product

The SDR0805-471KL is a reliable fixed inductor manufactured by Bourns Inc., belonging to the SDR0805 series.Classified under inductors/coils/chokes, it adopts a wirewound drum core design with ferrite material, offering stable inductance performance and suitability for a wide range of power management and signal processing scenarios.

Ⅱ.Core parameter

Category:Inductors, Coils, Chokes,Fixed Inductors

Mfr:Bourns Inc.

Series:SDR0805

Packaging:Tape & Reel

Part Status;Active

Type:Drum Core, Wirewound

Material - Core:Ferrite

Inductance:470 µH

Tolerance:±10%

Current Rating (Amps):340 mA

Current - Saturation (Isat):500mA

DC Resistance (DCR):1.96Ohm Max

Frequency - Self Resonant:4MHz

Operating Temperature:-40°C ~ 125°C

Mounting Type:Surface Mount

Size / Dimension:0.307" L x 0.307" W (7.80mm x 7.80mm)

Height - Seated (Max):0.209" (5.30mm)

Ⅲ.Main characteristics

Consistent Inductance Performance:470 µH inductance with ±10% tolerance ensures stable operation in circuit designs, minimizing performance deviations.

Ferrite Drum Core:Ferrite core material optimizes magnetic properties, reducing core losses and enhancing energy storage efficiency.

Wirewound Construction:Delivers low DC resistance (1.96 Ohm Max) for reduced power consumption and improved current handling stability.

High Saturation Current:500 mA Isat exceeds the 340 mA operating current rating, providing a safety margin against overloads and saturation.

Wide Temperature Adaptability:Operates reliably from -40°C to 125°C, compatible with harsh industrial, automotive, and consumer electronics environments.

Surface Mount Package:Compact 7.80mm x 7.80mm footprint with 5.30mm max height enables space-saving PCB integration in dense layouts.

Elevated Self-Resonant Frequency:4 MHz SRF supports high-frequency applications such as switching power supplies and signal filtering.

Ⅳ.Application field

Power Management Systems:DC-DC converters in consumer electronics (smartphones, tablets), industrial controllers, and automotive electronics.

Signal Filtering Applications:EMI/RFI filters for audio devices, communication modules, and sensor circuits to reduce interference.

Voltage Regulation:Provides stable inductance for linear and switching voltage regulators in power supply units.

Portable Electronics:Ideal for battery-powered devices (wearables, portable chargers) due to its compact size and low power loss.

Automotive Electronics:Suitable for in-vehicle infotainment systems, LED lighting controls, and powertrain auxiliary circuits.

Telecom Equipment:Signal conditioning and power conversion in routers, network switches, and telecom base stations.

Ⅴ.Summary

The SDR0805-471KL fixed inductor integrates compact design,stable electrical performance, and robust environmental adaptability.