onsemi Zener Diode 4.3 V 300 mW Surface Mount 3-Pin SOT-23 BZX84C4V3LT1G

onsemi BZX84C4V3LT1G is a high-quality Zener Diode designed for regulation applications, offering a nominal Zener voltage of 4.3 V and a power dissipation of 300 mW. It features a single diode configuration housed in a compact 3-pin SOT-23 surface mount package, making it ideal for space-conscious electronic designs in industrial and commercial semiconductor applications.

This diode provides excellent voltage regulation performance with a tolerance of ±5% and a maximum reverse leakage current of just 3 μA, ensuring low power losses. It operates reliably across a broad temperature spectrum from -65°C to 150°C, suitable for demanding environments including automotive and industrial sectors where temperature robustness is critical.

The device's maximum Zener impedance is 90 Ω, contributing to consistent voltage stability under varying load conditions. Its typical voltage temperature coefficient is 0 mV/K, indicating minimal voltage variation with temperature changes, enhancing precision in sensitive circuits.

With a test current of 5 mA, the diode is characterized for dependable quality and operation. While not meeting automotive standards, the BZX84C4V3LT1G remains a robust choice for general-purpose voltage regulation in power supplies, protection circuits, and signal conditioning modules.

Single diode configuration suitable for voltage regulation. Nominal Zener voltage of 4.3 V with ±5% tolerance. Maximum power dissipation of 300 mW ensuring compact power handling. Low maximum reverse leakage current of 3 μA for efficient operation.

Designed to operate within temperature range of -65°C to 150°C. Compact SOT-23 surface mount package with 3 pins for easy PCB integration. Maximum Zener impedance of 90 Ω contributing to stable voltage regulation. Typical voltage temperature coefficient of 0 mV/K for minimal temperature variance.

Test current rating of 5 mA for characterization and quality assurance. Automotive standard not applicable.

This component is widely used in electronic circuit designs requiring regulated voltage references, protection against voltage spikes, and precise voltage clamping in industrial, commercial electronics, and laboratory applications. Its small footprint and reliable operation make it suitable for high-density PCB assemblies.

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