The 1SMA5943B is a surface-mount Zener diode manufactured by Guangdong Kexin Industrial Co., Ltd. It is designed to provide voltage regulation and transient voltage suppression in a variety of electronic applications. This diode is part of the SMA59xxB series, offering a defined Zener voltage with a specific tolerance.

Applications:

• Voltage stabilization in electronic circuits
• Overvoltage protection
• Transient voltage suppression (TVS)
• Clamping applications
• Power management circuits

Features:

• Surface-mount SMA package (DO-214AC)
• Zener Voltage of 33V
• High surge current capability
• Glass passivated junction
• RoHS compliant

Benefits:

• Provides reliable voltage regulation
• Protects sensitive components from voltage spikes
• Compact size for high-density PCB layouts
• Easy to integrate into automated assembly processes
• Offers a well-defined Zener voltage for precise applications

Specifications:

The 1SMA5943B features a Zener voltage (Vz) of 33V with a tolerance of ±5%. It offers a power dissipation of 1.5W. The operating temperature range is -65°C to +150°C. The package is a standard SMA (DO-214AC) surface mount package. The maximum reverse leakage current (Ir) at a specified voltage is very low. It's designed to handle significant surge currents without failure. Forward Voltage (Vf) is 1.2V at 200mA.

This diode is suitable for applications requiring a 33V Zener voltage, providing both regulation and protection against transient events. Its robust construction and compliance with industry standards make it a reliable choice for a wide range of electronic devices.