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Bourns SRF1209U4 Common-Mode Chip Inductors

Bourns SRF1209U4 Common-Mode Chip Inductors provide high impedance over a high frequency range. These compact, low-profile inductors offer an operating temperature range of -40°C to +125°C and are RoHS-compliant and halogen-free. The SRF1209U4 is ideal for noise suppression in signal transmission lines and is compatible with USB 3.1 Gen. 1 and Gen. 2, HDMI 2.0 and 2.1, USB4™, and Thunderbolt™ interfaces.

Features

  • Small size and low profile
  • High impedance over high frequency range
  • RoHS-compliant and halogen-free

Applications

  • Noise suppression in signal transmission lines
  • USB 3.1 Gen. 1 and 2
  • HDMI 2.0 and 2.1
  • USB4
  • Thunderbolt

Specifications

  • 1.9Ω ±25% to 90Ω ±25% common-mode impedance
  • 100MHz test frequency
  • 18GHz typical cut-off frequency
  • 0.20Ω to 0.30Ω maximum DC resistance
  • 300mA to 400mA maximum rated current
  • 50VDC maximum rated voltage
  • 125VDC maximum withstand voltage
  • 10MΩ minimum insulation resistance
  • -40°C to +125°C operating temperature range

Schematic

Schematic - Bourns SRF1209U4 Common-Mode Chip Inductors

Dimensions

Mechanical Drawing - Bourns SRF1209U4 Common-Mode Chip Inductors
Published: 2025-05-29 | Updated: 2025-06-02