56K Dial-Up Modem

56K Dial-Up Modem

Circuits shown here can experience overload, short circuit conditions, or voltage transients (lightning, ESD, etc.) and may require protection components to meet Regulatory standards or to ensure reliable operation. Click on the green links to find Littelfuse circuit protection solutions.

Solutions By Circuit

DC input

  • Leaded

  • Resettable PTCs

  • LA

    Line Voltage Operation Radial Leaded Varistor

  • P4KE

    400W Axial Leaded Transient Voltage Supressors

  • P4SMA

    400W Surface Mount Transient Voltage (TVS) Diode - P4SMA