1SMB5930B-13 Discrete Semiconductor Products

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The 1SMB5930B-13 is a single Zener diode designed with a reverse voltage of 13 Volts, a power dissipation of 500 mW, and a nominal current of 20 mA. The diode has a small thermal resistance junction to case which ensures that the diode can dissipate the heat resulting from the forward current, allowing for a low temperature rise. This diode is a perfect choice for applications requiring a relatively low peak current, such as voltage surge clamping or voltage DC protection.

The 1SMB5930B-13 uses the principle of the Zener effect, which occurs when a forward bias is applied to a P-N junction diode connected in reverse bias. The diode is formed by depositing a thin layer of a material such as zinc or gallium on the back of a silicon wafer. The reverse bias increases the electric field in the junction, resulting in an avalanche breakdown. When the voltage exceeds a certain threshold, the electrons in the conduction band can start to tunnel, forming an extra current path.

The most common application of the 1SMB5930B-13 is voltage surge clamping. Voltage is often generated by lightning strikes, electrostatic discharge, or other transient sources. Clamping diodes are designed to limit the maximum voltage generated by these transient sources. The Zener diode is ideal for this application, as the voltage across the diode is limited to the Zener voltage, protecting the equipment from damage and noise. The 1SMB5930B-13 is an efficient overvoltage protector and can be used in combination with TVS diode and/or MOV for added protection.

The 1SMB5930B-13 can also be used for voltage DC protection. This diode is designed to limit the voltage across the diode to a specific level. If a transient voltage is present, the voltage will be clamped at the Zener voltage. This application is ideal for protecting sensitive electronics from overvoltage damage. The diode can also be used in power supplies to regulate the DC voltage output by clamping the voltage to the Zener voltage.

The 1SMB5930B-13 is a versatile device and can be used in various applications. Its small size, low power dissipation, and low power rating make it perfect for protecting sensitive electronics or systems from overvoltage. Its robust design ensures that it can withstand transient voltages and thus protects the equipment from any unintentional damage.

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