onsemi 4.3 V 225 mW Zener Diode Single Surface Mount SOT-23 SZMMBZ5229BLT1G

onsemi SZMMBZ5229BLT1G is a high-quality 4.3 V Zener Diode designed as a single element voltage regulator with a maximum power dissipation of 225 mW. It features a compact surface mount SOT-23 3-pin package optimized for modern compact electronic applications in power regulation and protection circuits.

This Zener diode provides precise voltage regulation with a tolerance of ±5%, suitable for stabilizing voltage supplies within industrial, consumer electronics, and automotive circuits. The maximum operating temperature of 150°C and minimum of -65°C make it ideal for demanding environments.

The device has a maximum reverse leakage current of 5 μA and maximum Zener impedance of 22 Ω at the specified test current of 20 mA. Its solderable surface mount form factor enables efficient automatic PCB assembly for high-volume production.

It is compliant with RoHS environmental standards and belongs to the SZMMBZ52xxBLT1G series from onsemi. This diode is generally used in electronic circuits requiring voltage regulation, protection against voltage transients, and precise voltage reference tasks across industrial, commercial, and automotive applications.

The diode's compact dimensions of 3.04 mm in length and 1.11 mm in height make it well-suited for densely packed circuit boards. Nominal Zener voltage of 4.3 volts for stable voltage regulation. Maximum power dissipation rating is 225 milliwatts.

Package type is space-saving SOT-23 with 3 pins suitable for surface mounting. Voltage regulation tolerance of ±5% ensuring precision in applications. Operational temperature range from -65°C to 150°C for wide environmental adaptability.

Maximum reverse leakage current is 5 microamperes at test conditions. Maximum Zener impedance of 22 ohms helps maintain voltage stability. Test current specified at 20 mA for device characterization. RoHS compliant ensuring environmental safety standards.

Compact dimensions with length of 3.04 mm and height of 1.11 mm.

This Zener diode is applicable in semiconductor discrete components used across electronics manufacturing, industrial automation, and laboratory instrumentation for voltage regulation and protection functions. It is recommended for integration in PCBs where size, performance, and reliability are critical factors.

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