P4KE16A is a high-reliability 400W transient voltage suppressor (TVS) diode in a rugged DO-41 axial lead package, engineered to protect sensitive electronic circuits from damaging voltage transients such as ESD (electrostatic discharge), lightning-induced surges, inductive switching spikes, and power line overvoltage events. It works by rapidly clamping excessive voltage and safely diverting surge current away from critical components, ensuring stable operation and long-term circuit protection.
Built with a glass-passivated junction structure, the P4KE16A provides excellent electrical stability, low leakage current, and consistent breakdown characteristics even under repeated surge conditions. Its fast response time allows near-instantaneous protection, effectively safeguarding ICs, microcontrollers, communication ports, and power management circuits 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-grade, automotive, and harsh environment applications. The uni-directional configuration ensures efficient DC line protection, improving overall system reliability and durability.
The DO-41 package offers excellent mechanical strength, easy PCB mounting, and reliable thermal performance, making it suitable for both compact and robust 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 protection circuits
- Consumer electronics protection
- Telecom and communication systems
- Industrial control equipment
- Automotive electronic modules
- General-purpose transient voltage suppression applications
