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Breakover Diodes

Breakover Diodes
Breakover diodes (BODs) are solid‑state devices used for over‑voltage protection, fast switching, and controlled energy discharge in power electronic systems. Under normal operating conditions, BODs remain in a high‑impedance off‑state. When the applied voltage exceeds the specified breakover level, the device switches rapidly to a low‑impedance conducting state, helping divert transient energy away from sensitive components. Designers use BODs to protect thyristors, batteries, and other power semiconductors from lightning surges, arc‑flash events, and inductive switching transients. BODs are also commonly used as trigger devices in pulsed systems such as laser drivers and capacitor‑discharge circuits.
  • Defined breakover voltage (VBO) with low temperature dependence
  • Wide breakover voltage range across discrete and module variants
  • Controlled breakover and holding behavior (IBO, IH) for predictable operation
  • High surge current capability (IFSM / ISM) for transient protection events
  • Low average conduction current requirement depending on device variant
  • High dv/dt capability for robust operation in electrically noisy environments
  • Low off‑state leakage current (ID) under normal operating conditions
  • Robust discrete and module package options for reliable system integration
  • RoHS‑compliant construction
  • Fast and reliable breakover turn‑on for over‑voltage protection
  • Stable performance over temperature for consistent system behavior
  • Suitable for demanding applications with high dv/dt stress
  • Flexible implementation using discrete or module solutions
  • Package designs optimized for PCB mounting and long‑term reliability

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