Broadcom AFBR-3905 High Voltage Galvanic Insulation Links

Broadcom AFBR-3905xxRZ are high voltage galvanic insulation links for DC to 5MBaud and DC to 50MBaud. They consists of an optical transmitter and receiver operating at 650nm wavelength. Pin-to-pin distance of approximately 25 to 101mm provides transient voltage suppression in the range of 15kV to 50kV.


  • Data transmission at signal rates of DC to 5MBaud
  • DC coupled receiver with CMOS/TTL output for easy designs: no data encoding or digitizing circuitry required
  • High noise immunity through receiver IC with integrated photodiode
  • Transient voltage suppression in the range of 15kV to 50kV according to IEC 60644
  • RoHS compliant
  • Laser class 1 according to IEC-60825
  • Tested according to IEC-60747-5-5
  • Housing Material UL-V0 with CTI ≥ 600
  • Optional 3.3V or 5V power supply


  • Drives/Inverters
  • Galvanic insulation on one single PCB
  • Medium Voltage Power Distributions
  • Regulated Distribution Transformers
  • Smart Grid on-board Insulations

Block Diagram

Publicado: 2015-04-23 | Actualizado: 2022-03-11