MLCE60AE3

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TVS - Diodes have been utilized to protect electronic components against voltage transients. MLCE60AE3 is one of these components, and this article will discuss the application field and working principle of this particular diode.

MLCE60AE3 is a unique unidirectional, low capacitance transient voltage suppressor diode, specifically designed to protect space demanding applications typically found in mobile phones, portable computers, and other handheld electronic equipment. It is designed to be installed on two row 0.3mm pitch packages, making it an ideal solution for today\'s portable devices that require advanced levels of protection against damage caused by electrostatic discharge (ESD) and transient voltages. This device from the Thermal-Electric Reliability line is both RoHS compliant and lead-free.

The MLCE60AE3 operates in the same manner as other TVS - Diodes. It is designed to conduct excessive current away from the protected circuit, while in turn limiting the voltage seen by the sensitive components. The diode is triggered by exceeding the peak pulse power or by a preset maximum breakdown voltage, at which time current is drawn away from the circuit and dissipated as heat.

The MLCE60AE3 supports overvoltage circuit protection for a broad range of small form factor electronics, including laptops, PDAs, digital cameras, MP3 players, and other handheld devices which require high levels of performance and protection. It maintains extremely low leakage current across its entire working temperature range, from -65°C to +150°C. Its high peak pulse power capability (P(PK2)) of 400W and its fast response time guarantee superior protection for a wide range of today\'s portable device applications.

The MELE60AE3 features a zener diode construction, which is placed between anode and cathode and acts as an avalanche junction. The device\'s working principle is when a transient overvoltage is applied, at some point the electric field part of the semiconductor will reach a critical level that exceeds the breakdown voltage of the avalanche diode. The breakdown voltage is determined by the multiplication of the excess carriers injected by either the thermal or carriers in the neighbouring regions.

When the critical electric field is exceeded, carrier multiplication or avalanche effect takes place. The multiplication of carriers causes further multiplication of carriers until a high enough current is built up to meet the value set by the series resistor. This current will then trigger the device\'s protection action. The generated current is then conducted from the anode to the cathode of the diode, and the source supplying the energy is limited to its own clamp voltage.

In conclusion, the MLCE60AE3 is an ideal low capacitance and unidirectional transient voltage suppressor diode for today\'s portable devices. It is designed to provide reliable protection against electrical surges, such as electrostatic discharge, and a wide range of transient voltages. With its fast response time and 400W peak pulse power capability, the MLCE60AE3 is an ideal choice for protecting sensitive electronics in small form factor devices.

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