Overvoltage - LITTELFUSE, BUSSMANN, MERSEN
Available from Fuses Unlimited, Inc.
Metal Oxide Varistors (MOV's), TVS Diodes, ESD Suppressors, Gas Discharge Tubes (GDT's), SIDACtor safety devices like fuses provide protection against excess current, but do nothing for transients and short duration spikes of high voltage on the power supply lines. This circuit uses the "crowbar" method and
provides fast protection against transient voltage spikes, transients that could cause damage to sensitive components.