STMicroelectronics 4.3 V Nominal Zener Diode Single Surface Mount 5-Pin SOT-666 ESDALC6V1P5

STMicroelectronics ESDALC6V1P5 is a 4.3 V nominal Zener diode optimized for surface-mount applications in electronic circuit protection against electrostatic discharges (ESD). Packaged in a compact 5-pin SOT-666 configuration, this diode offers efficient voltage clamping just above logic level supply voltages for positive transients, and below ground for negative transients, preserving the integrity of sensitive components.

This device integrates four unidirectional Transil function elements per chip to enhance ESD suppression on data and transmission lines. The maximum reverse leakage current is extremely low at 100 nA, minimizing standby power consumption. Additionally, its low diode capacitance of 7.5 pF at 3 V ensures high-frequency signals are not adversely affected, making it ideal for fast digital applications.

Designed for durability, the ESDALC6V1P5 operates across a broad temperature range from -40°C to 150°C, ensuring reliability in various industrial and commercial environments. Its small physical size - length of 1.7 mm and height of 0.62 mm - supports high-density PCB assembly without sacrificing protection capabilities.

The maximum Zener impedance of 1.5 Ω ensures voltage stability during transient events, offering consistent protection. Although it does not carry specific automotive or industrial certifications, it is highly suited for consumer electronics, communication devices, and other systems requiring robust ESD protection.

Unidirectional voltage clamping to guard sensitive electronics. Four Transil elements integrated per chip for enhanced durability. Low reverse leakage current minimizes power loss. Minimal diode capacitance supports high-speed signal lines.

Wide operating temperature range from -40°C to 150°C. Compact SOT-666 5-pin surface mount package. Stable voltage regulation with low Zener impedance. Suitable for protection in Electronic Components, power connectors, and semiconductors.

This diode is an excellent choice for engineers designing circuits requiring reliable ESD protection, including in telecommunications, computing, and precision electronics. The combination of ultra-low leakage currents, low capacitance, and robust temperature tolerance offers superior performance in a small package.

For additional design resources, including datasheets and 3D models, refer to STMicroelectronics official documentation. This product is part of EnvMart’s comprehensive selection of semiconductor components tailored for industrial and professional electronic assembly needs.