1SMA120ZHR3G

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1SMA120ZHR3G: Technical Overview

The 1SMA120ZHR3G is a single-die, Zener diode. It is designed for a wide range of applications, including clamping and protection, EMI suppression, and voltage reference. This device can be used in a wide variety of applications, including computing, telecom, consumer, and automotive.

1SMA120ZHR3G Application Field and Working Principles

1SMA120ZHR3G is a type of diode formed from two serially-connected semiconductor layers of different types, the P-type and N-type. In general, current flow in diodes can only occur from the P-type layer to the N-type layer. In Zener diodes, however, the N-type and P-type layers are made from different doping levels of the same material, creating what is known as a junction breakdown. As a result, when the voltage across the diode exceeds the diode\'s rated breakdown voltage, current can flow in the reverse direction. This reverse-biased current is called a Zener breakdown.

The 1SMA120ZHR3G is a Zener diode that offers a wide range of protection, permitting it to be used in a wide range of applications. When connected between a power supply and a sensitive load, the Zener diode can protect the load from excessive voltage. This technique can be used to protect both simple loads, such as LEDs, and more complex integrated circuits (ICs). In addition, the 1SMA120ZHR3G can be used in circuit designs for the purpose of clamping, or limiting the maximum voltage of a power supply. The diode’s wide range of breakdown voltages and power dissipation ratings enable it to be used as a voltage reference in many applications.

This Zener can also be used in circuit designs to suppress EMI (electromagnetic interference), which can occur when voltage is switching rapidly on the power lines. The Zener diode helps to reduce this interference by shunting the large voltage surges that are provided by the power supply to reduce the EM radiation. This protection can be used in both commercial and industrial applications to reduce the amount of noise input into sensitive electronics, such as radios and televisions.

Features and Specifications

• Wide operating voltage range of 20V to 150V
• Power dissipation rating of 120mW
• Maximum total current of 1000mA
• Surge power rating of 100W for 1 second
• Very low capacitance in reverse bias of less than 10nA
• AEC-Q101 qualified

Conclusion

The 1SMA120ZHR3G is a single-die, Zener diode designed for a wide range of applications. It provides protection and clamping, EMI suppression, and voltage reference capabilities. Its wide variety of features and low capacitance in reverse bias make it an excellent choice for a variety of applications.

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