SMBJ16A-QH Circuit Protection

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TVS - Diodes are an integral component in any circuit designed to protect a device from electrostatic discharge or voltage transients. The SMBJ16A-QH is a uni-polar Transient Voltage Suppressor (TVS) Diode from a leading semiconductor manufacturer. It was designed to protect sensitive electronic components from voltage spikes and static electricity. This device is provided in an industry standard SOT-23 package.

The SMBJ16A-QH is designed to protect against negative ESD (electrostatic discharge) transients. The diode\'s common anode provides excellent voltage clamping, while its low capacitance ensures fast switching and good holding current. The SMBJ16A-QH features breakdown voltage rated at 16V. The diode is constructed with a proprietary quenching circuit, allowing rapid discharge of stored energy.

When exposed to an electrical over-stress condition, the SMBJ16A-QH will rapidly divert the excess current away from the sensitive circuitry. The voltage clamping action of the TVS Diode rapidly clamps the transient voltage to a safe level. This allows the diode to absorb the excess energy, protecting the sensitive device from ESD damage.

To understand the working principle of the SMBJ16A-QH, one must first understand the basic operation of a PN junction diode. PN junction diodes conduct current when forward biased, and block current when reversed biased. The SMBJ16A-QH is designed to become reverse biased under normal operating conditions. This prevents current from flowing through the device, and thus keeps the protected circuitry safe from damage during normal operation.

The SMBJ16A-QH works by clamping the transient voltage at a set level. When exposed to an over-stress voltage, the SMBJ16A-QH diode quickly switches on, redirecting the excess current away from the sensitive circuitry. This switching action produces a finite voltage drop across the device and reduces the voltage seen at the device terminals to clamping potential, thus protecting the equipment from damage.

The SMBJ16A-QH is specifically designed for use in circuit protection against static electricity and voltage transients. Its 16V rated breakdown voltage ensures reliable protection in a wide variety of applications, from consumer electronics to high-end medical equipment. The low capacitance ensures fast response time and ensures that it will work in high-frequency circuits, while its quenching circuit enables fast discharge of energy.

The SMBJ16A-QH is a reliable and cost-effective ESD protection solution for a variety of applications. Its low capacitance rating ensures fast switching and prevents interference with signal integrity. The diode’s low power consumption and small package size makes it a great choice for space constrained applications. Overall, the SMBJ16A-QH is a great choice for ESD protection, enabling reliable circuit protection at a low cost.

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