P4KE9.1A 400W 9.1V TVS Diode DO-41 | RUILON

The P4KE9.1A is a 400W transient voltage suppressor (TVS) diode designed to protect sensitive electronic circuits from electrostatic discharge (ESD), lightning surges, and fast transient voltage spikes. With a 9.1V standoff voltage, it provides precise low-voltage clamping, making it suitable for protecting modern electronic systems, ICs, and signal lines.

Encapsulated in a DO-41 axial leaded package, it supports reliable through-hole mounting and offers strong mechanical stability for industrial and general-purpose applications. The P4KE series features fast response time, enabling it to quickly suppress high-energy transient events before they can damage downstream components. Its glass-passivated junction ensures long-term reliability and stable electrical performance, while low leakage current supports efficient circuit operation under normal conditions.

The bidirectional (A-type) design allows effective suppression of voltage spikes in both positive and negative directions, making it a versatile protection solution for a wide range of electronic applications.

Key Features

• 400W peak pulse power capability
• 9.1V standoff voltage for low-voltage protection
• Fast response to ESD and transient surges
• DO-41 axial through-hole package
• Glass-passivated junction for high reliability
• Low leakage current for efficient operation
• Bidirectional protection design

Applications

• Power supply surge protection
• Consumer electronics input protection
• Industrial control systems
• Telecom and communication equipment
• Data and signal line ESD protection
• General-purpose transient voltage suppression