The DIPTRONICS P4KE91 is a unidirectional Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic circuits from voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD). With a breakdown voltage of 91V and a peak pulse power dissipation of 400W, this TVS diode effectively clamps transient voltages to safe levels, preventing damage to downstream components. Housed in a DO-41 package, the P4KE91 offers easy installation and integration into existing circuit designs. Supreme Components International is an authorised distributor of DIPTRONICS components, ensuring you receive genuine and high-quality products. Ideal for use in telecommunications equipment, industrial controls, and consumer electronics.