SEO Description
P4KE18A is a high-performance 400W transient voltage suppressor (TVS) diode in a reliable DO-41 axial lead package, designed to protect sensitive electronic circuits from damaging voltage transients such as ESD (electrostatic discharge), lightning surges, inductive switching spikes, and power line overvoltage events. It provides fast and effective clamping of transient voltages, safely diverting surge energy away from critical components and ensuring stable system operation.
Built with a glass-passivated junction structure, the P4KE18A offers excellent electrical stability, low leakage current, and consistent breakdown characteristics even under repeated surge stress. Its fast response time enables near-instant protection, making it highly effective in safeguarding ICs, microcontrollers, communication interfaces, 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 demanding industrial, automotive, and harsh environmental applications. The uni-directional design ensures efficient DC line protection and improves overall circuit reliability and safety.
The DO-41 package provides strong mechanical durability, easy PCB mounting, and good thermal performance, making it ideal for both compact and rugged 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 configuration
- DO-41 axial lead package
- Strong ESD, surge, and lightning protection capability
Applications
- Power supply protection circuits
- Consumer electronic devices
- Telecom and networking systems
- Industrial control equipment
- Automotive electronics protection
- General-purpose transient voltage suppression applications
