SA48CA-E3/54 Datasheet/PDFThe SA48CA-E3/54 TVS diode is a small-signal unidirectional, high-power protection device designed to protect vulnerable circuits from transient voltage spikes. It works by temporarily "clamping" the voltage spike so that it does not damage sensitive components. The SA48CA-E3/54 is a stand-alone TVS diode that is ideal for use in automotive applications, such as Automotive Control Modules, Automotive Electric Control Units, and Automotive Safety Systems.
Applications
The SA48CA-E3/54 is designed for use in automotive applications and is rated at 6.0V, 4.5A. It is ideal for replacing zener diodes, ESD suppression diodes, or discrete TVSs in applications where high-current protection is necessary. It is suitable for use in Automotive Control Modules (ECMs), Automotive Electronic Control Units (ECUs), Automotive Safety Systems, and in any other situation where transient voltage protection is needed.
Working Principle
The SA48CA-E3/54 works by temporarily "clamping" the voltage spike so that it does not damage sensitive components. It does this by activating the diode as soon as the voltage reaches its clamp voltage rating. The diode then acts like a resistor and begins to divert current away from the circuit. As the current is diverted, the voltage drop across the diode is temporarily increased, thus limiting the voltage on the circuit and preventing damage. As soon as the voltage returns to normal, the diode turns off and the circuit is once again protected from excessive voltage.
The SA48CA-E3/54 is designed to protect against transients up to 6.0V, and can sustain impulse voltages up to 30V. The diode has a quick response time of less than 1.0ns, and a relatively low static power consumption at 0.94W. The device comes in a miniature SOD-123 package, making it ideal for use in tight spaces. The diode is also RoHS compliant and has an operating temperature range of -55 to +150°C.
Conclusion
The SA48CA-E3/54 is a unidirectional, high-power protection TVS diode designed for automotive applications. It provides protection from transient voltage spikes up to 6.0V, and can sustain impulse voltages up to 30V. It has a fast response time and low static power consumption. The diode comes in a miniature SOD-123 package, making it easy to install in tight spaces. The diode is RoHS compliant and has an operating temperature range of -55 to +150°C.
The SA48CA-E3/54 is an effective solution for providing protection from voltage transients in automotive applications. It is ideal for replacing zener diodes, ESD suppression diodes, and discrete TVSs. With its fast response time and low static power consumption, it is an excellent choice for those looking for reliable protection for their circuits.