B72500D0090A060

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TVS devices, such as B72500D0090A060, are designed to protect sensitive electronic devices and circuits from hazardous overvoltages. The Varistors, MOVs, or TVS diodes are non-linear, rugged, bi-directional voltage dependent devices. They suppress surges, spikes, lightning, electrical noise, ESD and induction. The B72500D0090A060 application field and working principle can be classified as follows.

Application Field of B72500D0090A060

The B72500D0090A060 is a bidirectional Transient Voltage Suppressor (TVS), designed specifically for overvoltage protection of sensitive electronics circuits. It is designed to protect against transients originating from inductive and capacitive load switching, lightning, and ESD. It is suitable for applications such as USB 2.0 or higher standards, video, audio, automotive, and other interface applications.

The B72500D0090A060 is particularly suitable for applications that require a > 60V breakover voltage (Vb) and a fast <8ns response time. Its low clamping voltage (Vc) allows additional voltage protection in high voltage protection circuits.

Working Principle of B72500D0090A060

B72500D0090A060 is designed to protect circuits from voltage transients by limiting the voltage to a set value. It works within a reverse breakdown voltage range, from Vb to Vc, in response to an applied voltage. During normal operation, the diode is not conducting until the applied voltage exceeds the Vb. At this point, the diode begins to conduct and clamps the voltage to the Vc.

The B72500D0090A060 has an internal diode constructed of silicon and a zinc oxide (ZnO). The ZnO provides a low on-state forward voltage drop and faster clamping. As the transient voltage increases, the ZnO will start to conduct and send current to the diode to limit the voltage. Once the voltage is clamped to the Vc, the clamping voltage begins to reduce and the diode will stop conducting.

Once the voltage drops below the Vb, the diode switches off and can be used again while the internal protection diode restores. The reverse leakage current at Vb is very low and decreases with temperature.

Conclusion

The B72500D0090A060 is a bidirectional TVS diode designed for use in overvoltage protection applications. It is suitable for applications that require a >60V breakover voltage and a fast <8ns response time. Its low clamping voltage allows additional voltage protection in high voltage protection circuits. The working principle is based on an internal diode structure constructed of silicon and zinc oxide, which provides a low on-state forward resistance and faster clamping.

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