ERZ-VS34C271

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TVS (transient voltage suppressor) and Varistors are two important components used in the protection of electronic circuits against overvoltage. Varistors and Transient Voltage Suppressors (TVSs) are two kinds of voltage dependent switching devices with very similar structure and function. The main difference between the two, is that varistors are designed to operate over a much wider voltage range, while TVSs have a much better protection level.

ERZ-VS34C271, which is a surge absorber produced by EPCOS, is a special type of TVS. It is characterized by its low profile of 2mm, excellent clamping ability, and superior transient performance. The device is ideal for surge and impulse protection applications in automotive and industrial electronics, as well as for protection of sensitive electronics from surges in consumer applications.

The ERZ-VS34C271 has a maximum peak pulse power dissipation capability of 5.2 kW and an operating voltage range of 5.5V to 61V. The device is composed of a silicon diode and a soybean-shaped zinc oxide varistor element, which is protected by a thermoplastic housing. The zinc oxide varistor element acts as the primary protection element, while the integrated diode prevents external reverse current. The thermoplastic housing provides excellent environmental stability to the device, making it suitable for long-term operation.

The working principle of ERZ-VS34C271 is based on the general principles of varistor operation. When a transient voltage is applied to the device, the avalanche breakdown phenomenon occurs in the zinc oxide varistor element. During this process, a large current passes through the device and the associated voltage drop across the device is clamped, protecting the mounted electronics. The diode in the device prevents external reverse current from entering the protected equipment.

The ERZ-VS34C271 also features an excellent thermal performance with very low internal resistance. This ensures great power dissipation capability and excellent clamping capability. In addition, the device has a wide operating temperature range of -55℃ to 125℃, which makes it suitable for use in extreme environmental conditions. The package is also designed to be solder compatible, making it easy to install in any system.

In conclusion, the ERZ-VS34C271 is an excellent device for overvoltage protection applications. Its low profile and superior transient performance make it suitable for applications in various markets. Combined with its wide temperature range and excellent power dissipation capability, it is an ideal choice for effective surge and impulse protection.

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