UPTB33E3/TR7 Circuit Protection

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Our TVS – Diodes are used by many industries to protect their products from electrical transients and surges. One widely used device is the UPTB33E3/TR7. This device is designed to provide protection to electrical and electronic systems against surges and energy spikes.

The UPTB33E3/TR7 is a low-capacitance unidirectional diode fabricated on a silicon wafer with its pn junction formed in a U-shaped trench for increased surge current capability, low Vr, high temperature operation and excellent bipolar leakage characteristics. This device is an excellent choice for applications needing high transient protection and reliability.

Application Field

The UPTB33E3/TR7 diode is suitable for use in a wide range of applications, including:

• Automotive application like DC - DC converters, engine and battery control systems.
• Consumer & industrial products, particularly for telecom and Power over Ethernet equipment.
• Networks products, mainly for broadband and network application.
• Computer and peripheral products.
• Various portable machines like PDAs and cell phones.
• Security & medical equipment.

The UPTB33E3/TR7 diode also offers very low capacitance (65pF typ.) along with high ESD protection (up to 23kV contact discharges) which makes it suitable for high speed signal line protection.

Working Principle

When a voltage is applied to one end of the diode, electrons flow through the device from the anode to the cathode. This creates a current which is referred to as the forward current, and it is this current that protects the circuit from high voltage transients and surges.

The UPTB33E3/TR7 diode is designed to handle extremely high pulse currents with very little increase in voltage (Vr) across the diode. The pulse current rating of the device can reach up to 30A. This means that it can handle current pulses much larger than what would be expected from conventional diodes. The low Vr also enables it to maintain low levels of power dissipation which improves its efficiency.

The UPTB33E3/TR7 diode is designed to be connected in reverse bias, so that it can take full advantage of its low capacitance and breakdown voltage. When connected in this way, the diode acts like an open switch, allowing only a constant, low voltage current to flow. This prevents any surges or transients from affecting the rest of the circuit.

Conclusion

The UPTB33E3/TR7 diode is a great solution for many types of applications that require reliable surge and transient protection. It offers low capacitance, high surge ratings and excellent ESD protection, making it ideal for applications that require high speed signal protection. The TVS – Diodes are a great way to ensure that your products are safe and secure from electrical transients.

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