CDMSP10-0504M

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TVS (Transient Voltage Suppressor) diodes are a type of specialized power semiconductor device designed to protect electric components from voltage transients caused by ESD, inductive loads, and power crosses. CDMSP10-0504M is a representative of such device, providing a bidirectional ESD protection against voltage spikes up to 30kV. In this article, the application field and working principle of this device will be discussed.

The CDMSP10-0504M is a four-channel unidirectional device, often used in circuits as a protection component to guard against electrostatic discharge, load dump, and voltage transients. It is suitable for applications where high ESD protection is not required, such as consumer electronics and automotive components. As an unidirectional device, it can only perform protection in one direction, with the other side open or having some limited protection. Its working voltage is 5V (typical) and the leakage current is 0.2 μA (typical).

This TVS diode can work in both ambient and reflow temperatures from -55°C to +150°C respectively. The surface mount package type of the CDMSP10-0504M is 3.3x3.0x1.6mm, making it a suitable choice for applications with space constraints. It has an ESD protection level of 30kV, and a low-capacitance body suitable for high-speed USB, FireWire, and powering component transmit applications.

The way CDMSP10-0504M operation works is quite simple. Once an external voltage reaches a certain point, the device will start to conduct, and the resulting current will be drained away into a highly resistive path, dissipating the excess energy and protecting the circuit. This is made possible by the combination of the built-in zener diode and high-speed avalanche diode. The zener diode provides low clamping performance, and the avalanche diode allows high peak currents to be drained away from the circuit safely.

The CDMSP10-0504M is an ideal protection device for protecting circuits against ESD, EFT, and other transient voltage events. Its design is suitable for a wide range of applications, ranging from automotive components to industrial applications. Its small packaging size gives it a great advantage in applications with space constraints. This device is an excellent choice for protecting components against voltage transients in many different types of circuits.

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