The 1.5KE440A-E3/73 is a transient voltage suppressor (TVS) diode manufactured by Vishay. This diode is designed to protect sensitive electronic components from voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD). It is part of the 1.5KE series, known for its robust surge handling capability.

Applications:

• Protection of I/O interfaces
• Overvoltage protection in power supplies
• Protection of signal lines
• Protection of microprocessors and memory devices
• Use in industrial and consumer electronics

Features:

• Glass passivated junction
• Uni-directional configuration
• High surge capability: 1500W peak pulse power capability with a 10/1000μs waveform
• Low clamping voltage
• Fast response time

Benefits:

• Protects sensitive electronic equipment from voltage transients
• Enhances system reliability by preventing damage from overvoltage events
• Provides a cost-effective solution for surge protection
• Simplifies circuit design due to its ease of implementation
• Increases product lifespan by safeguarding against electrical stress

Technical Specifications:

The 1.5KE440A-E3/73 has a standoff voltage of 440V, a breakdown voltage of typically 489V, and a clamping voltage of 701V at a peak pulse current (Ippm). The peak pulse power dissipation is 1.5kW. It is available in a DO-201 package. The operating temperature range is typically -55°C to +175°C. The device features a fast response time, typically in the picosecond range. The 'E3' suffix indicates compliance with RoHS standards, meaning it is lead-free. It is specifically designed to handle high energy transients and provide reliable protection.

The Vishay 1.5KE440A-E3/73 TVS diode offers robust transient voltage protection for a variety of electronic applications. Its high surge capability, low clamping voltage, and fast response time make it an excellent choice for safeguarding sensitive components against damaging voltage spikes and surges, thereby enhancing the overall reliability and longevity of electronic systems.