en.Wedoany.com Reported - Bourns Inc. has introduced the MH3261‑T series of high-current chip ferrite beads, targeting high-density power applications where PCB space is limited and current handling requirements are stringent. This series is a compact EMI suppression component that provides effective electromagnetic interference mitigation within a constrained PCB footprint while avoiding excessive power loss.
The new series features a 3.2 mm × 1.6 mm package with a rated current of up to 11 A. As power density continues to increase and device form factors shrink, passive components face greater challenges. The MH3261‑T series helps engineers achieve efficient EMI filtering without sacrificing valuable board space.
As power distribution networks become more compact, ferrite beads must maintain impedance characteristics while supporting higher operating currents. Excessive DC resistance can lead to power loss and additional temperature rise, thereby reducing overall system efficiency. Addressing these challenges, the MH3261‑T series reduces DC resistance to as low as 0.0025 Ω, supporting stable high-current operation while minimizing conduction losses.
The series offers impedance options ranging from 30 Ω to 1000 Ω at 100 MHz, allowing flexible matching for specific EMI frequency bands and noise suppression requirements. This wide impedance range enables engineers to optimize filtering performance for various power and signal integrity applications.
According to Bourns, these ferrite beads have a rated operating temperature range of -55 °C to +125 °C (including self-heating effects at rated current). The components are housed in a low-profile 3.2 mm × 1.6 mm × 1.1 mm package, suitable for high-density PCB layouts and compact electronic systems.
Typical application scenarios include EMI suppression on power rails, power distribution lines, and other high-current paths requiring low insertion loss and good thermal stability. These devices are particularly suited for space-constrained systems where a balance between noise suppression and efficient power transfer is needed.
The MH3261‑T series ferrite beads are RoHS-compliant and halogen-free, available through Bourns' global distribution network. Samples and additional technical information can be obtained directly from Bourns customer service.
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