BZX55C13 – FSC

Overview

The onsemi BZX55C13 is a robust 13V Zener diode designed for precise voltage regulation in sensitive electronic circuits. Its primary function is to maintain a stable output voltage of 13V, even under fluctuating input conditions, with a maximum power dissipation of 500mW. A critical design consideration for this component, and indeed for all Zener diodes, is the trade-off between dynamic impedance (Zzt) and power rating; while the 26 Ohms Zzt offers reasonable regulation, designers must account for potential voltage overshoot during rapid current transients, especially in high-speed switching applications where a lower impedance might be preferred, often necessitating external stabilization circuitry.

Key Features

• Zener Voltage (Vz): 13 V
• Tolerance: ±6%
• Maximum Power Dissipation: 500 mW
• Maximum Dynamic Impedance (Zzt): 26 Ohms
• Reverse Leakage @ Vr: 100 nA @ 10 V
• Package: DO-35, Axial

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Precision voltage reference generation in analog signal chains.
• Overvoltage protection clamping for sensitive IC inputs.
• Stabilization of bias voltages in discrete transistor amplifiers.
• Low-frequency ripple filtering in DC power supply outputs.