1.5SMC9.1A-E3/9AT Circuit Protection

TVS-Diodes

1.5SMC9.1A-E3/9AT is a transient voltage surge suppressor (TVS) diode commonly used in consumer electronics, automotive and industrial applications. It is designed to protect against electrical transients that can cause damage, malfunction, and reliability to these devices. They are commonly referred to as “clamps” in circuit diagram since they are typically installed between the components of an electrical circuit.

The 1.5SMC9.1A-E3/9AT is a dual diode package designed for both unidirectional and bidirectional protection. This device is capable of withstanding repetitive transients up to 1500W peak pulse power. It has a working voltage range from 5V to 24V and a working current range from 1A to 8A.

The 1.5SMC9.1A-E3/9AT diode works by providing a low impedance path for surge current to flow away from the protected device. The dual diode package provides an internal capacitance which helps reduce noise by shunting it away from critical components. High frequency transients are absorbed into the diode and are dissipated safely to ground. This protects sensitive components from overvoltage and reduces the possibility of short-circuiting.

The 1.5SMC9.1A-E3/9AT is especially suitable for use in low voltage devices such as cell phones, laptops, automotive lighting, and other small electronic devices. It is also suitable for higher voltage applications such as industrial equipment, power supplies, and telecom systems. The device has a wide operating temperature range from -55°C to 125°C making it suitable for both indoor and outdoor use.

In summary, the 1.5SMC9.1A-E3/9AT is a reliable and rugged TVS diode that offers robust protection against transients. It is capable of withstanding repetitive transients up to 1500W peak pulse power. This device is suitable for a wide range of applications due to its wide operating temperature range and low cost.