The 1SMC43A is a transient voltage suppressor (TVS) diode manufactured by Central Semiconductor Corp. It is designed to protect sensitive electronic components from voltage transients caused by electrostatic discharge (ESD), inductive switching, and lightning. This unidirectional TVS diode is part of the 1SMC series, known for its robust construction and high surge current capability. The 1SMC43A is specifically designed to provide overvoltage protection in various applications.

Applications

• Protection of I/O interfaces
• Voltage surge protection in power supplies
• Overvoltage protection in industrial equipment
• Protection against EFT (Electrical Fast Transient)
• Protection of telecom equipment

Features

• Unidirectional TVS diode
• Surface mount SMC package
• Glass passivated chip junction
• Excellent clamping capability
• High surge capability: 1500W peak pulse power capability with a 10/1000μs waveform
• Fast response time: typically less than 1.0ps from 0 Volts to BV min
• Low incremental surge resistance
• RoHS compliant

Benefits

• Protects sensitive electronic components from damaging voltage transients
• Increases the reliability and lifespan of electronic equipment
• Reduces downtime and maintenance costs associated with surge-related failures
• Provides a cost-effective solution for high-power surge protection
• Simplifies circuit design and implementation

Additional Details

The 1SMC43A features a stand-off voltage of 43V, which makes it suitable for protecting circuits operating at or near this voltage level. The 'A' suffix signifies that it is a unidirectional device, providing protection against positive voltage surges. It is packaged in a SMC/DO-214AB package. With its fast response time and high surge handling capability, the 1SMC43A effectively clamps transient voltages, protecting sensitive circuits in various environments. Its operating temperature range is typically -55°C to +150°C.