MASMLJ28AE3 Circuit Protection

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MASMLJ28AE3 TVS - Diodes

The MASMLJ28AE3 TVS - Diodes is a high-performance voltage-transient protection diode specifically designed to meet the demanding requirements of automotive electronics. This device is able to clamp high energy pulses down to a safe level without sustaining high peak power. As an unidirectional device, it is designed to protect circuits in both the positive and negative directions, as well as provide common mode protection. The MASMLJ28AE3 uses bidirectional avalanche characteristics to provide superior performance. In addition, it provides an extra level of protection from voltage highs resulting from high-current transients.

Application Field

The MASMLJ28AE3 can be used to protect against destructive transients on Automotive Electronic Control Units (ECUs), Vehicle Telematics, Heater Control Units, Ignition Modules, Air-Induction Sensor Switches, Power and Lighting Circuits, and Dashboard Instrumentation.

The MASMLJ28AE3 can also be used to protect circuits from short and long-term high power pulses in applications such as automotive 12V and 24V systems, automotive LiFePO4-type battery systems, direct current (DC) input systems, solar power installations, DC/DC buck converters, power supplies, and power semiconductor protection.

Working Principle

The MASMLJ28AE3 has two distinct modes of operation. First, it is able to limit the voltage of an applied pulse by using the reverse biased junction at the anode. This clamps the voltage to the breakdown voltage of the device. The second mode is an avalanche breakdown of the junction that causes a current conduction between the anode and the cathode. This limits the surge current to a safe level.

The MASMLJ28AE3 is designed to protect circuits from destructive transients that occur in the positive and negative directions. It is also designed to protect circuits from common mode transients that occur between the two terminals. Additionally, it provides a high level of protection from transients caused by high current pulses.

The device is constructed of two separate diodes, a positive diode and a negative diode. The positive polarity diode provides protection from positive voltage transients, while the negative polarity diode provides protection from negative voltage transients. The common mode protection is provided by the junction between the two diodes. This junction clamps the voltage between the anode and the cathode to a safe level by utilizing the avalanche effect.

The MASMLJ28AE3 is designed to provide superior transient protection, reliability, and high performance in a wide range of automotive applications. Its superior construction and high performance make it an excellent choice for automotive electronic protection needs.

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