SMBJ5346B-TP
Overview
The SMBJ5346B-TP is a high-power 5.0 Watt Zener diode designed for voltage regulation and transient protection in a compact surface-mount package. It provides a nominal Zener voltage of 9.1 V with a tight 5% tolerance, making it suitable for stable reference or clamping applications. The device is housed in a DO-214AA (SMB) package, allowing for efficient heat dissipation and automated assembly.
Why Choose This Part
This diode offers a high power rating of 5 W in a relatively small SMB footprint, providing a robust alternative to lower-power MELF or SMA packages. With a low dynamic impedance of 2 Ohms and a wide operating temperature range from -55 degC to 150 degC, it ensures reliable performance in demanding thermal environments.
Applications
Key Specifications
Getting Started
When integrating this Zener diode, ensure the PCB landing pattern includes sufficient copper area to act as a heatsink, as the 5 W rating is dependent on thermal management. Always verify that the maximum Zener current (Iz) is limited by a series resistor to prevent exceeding the power dissipation limits at your maximum operating temperature.
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