P4KE22A is a high-performance 400W transient voltage suppressor (TVS) diode in a rugged DO-41 axial lead package, designed to protect sensitive electronic circuits from damaging voltage transients such as ESD (electrostatic discharge), lightning-induced surges, inductive switching spikes, and power line overvoltage conditions. It operates by rapidly clamping excessive voltage levels and safely diverting surge energy away from critical components, ensuring stable circuit operation and long-term system reliability.
Built with a glass-passivated junction structure, the P4KE22A provides excellent electrical stability, low leakage current, and consistent breakdown characteristics even under repeated surge events. Its fast response time allows near-instant protection, effectively safeguarding ICs, microcontrollers, communication interfaces, and power management systems from transient damage.
With a 400W peak pulse power rating (10/1000 μs waveform), this device delivers strong surge absorption capability, making it suitable for industrial, automotive, and harsh environment applications. The uni-directional configuration ensures efficient DC line protection and enhances overall system safety and durability.
The DO-41 package offers strong mechanical durability, easy PCB mounting, and reliable thermal performance, making it ideal for both compact and high-reliability electronic designs.
Key Features
- 400W peak pulse power dissipation (10/1000 μs)
- Fast response time for transient suppression
- Glass-passivated junction for high reliability
- Low leakage current for efficient operation
- Uni-directional TVS diode design
- DO-41 axial lead package
- Strong ESD, surge, and lightning protection capability
Applications
- Power supply surge protection circuits
- Consumer electronic devices
- Telecom and communication systems
- Industrial control equipment
- Automotive electronics modules
- General-purpose transient voltage suppression applications
