1SMC45A TR13

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TVS - Diodes, or Transient Voltage Suppressor Diodes, are widely used to protect sensitive electronic or electrical equipment against transient over-voltage. 1SMC45A TR13, produced by Littelfuse, is a uni-directional over-voltage protection device specifically designed to protect circuits from 6.0 to 420V from damaging over-voltage transients. It has an economical and efficient way of suppressing surges and spike transients.

The 1SMC45A TR13 comes in a four-pin, SOD-323 Surface-Mounted Device (SMD) package. Its low profile and high surge peak power capability make it suitable for a wide range of applications, including personal computers, communication and military systems. The device features an anti-parallel, Zener diode in the negative-going direction, as well as a diode in the positive-direction for greater protection. This diode design allows greater protection against short and uncommonly long duration surges.

The 1SMC45A TR13 has a fast response time and an operating temperature range from -65°C to +175°C. Its rugged construction ensures reliable operation and low clamp voltage. The device also has a high surge peak power rating of 1500W, making it ideal for sensitive and high-power applications.

The working principle of the 1SMC45A TR13 is that when a transient over-voltage occurs, a clamping voltage is formed and the excess voltage is diverted to a low-resistance path to the ground, thus suppressing the surge. The 1SMC45A TR13 also has a low-voltage device switching characteristics which eliminate false triggering. This feature allows the device to operate normally even when the system voltage is low, and reduces the amount of power required to switch the device.

The 1SMC45A TR13 is suitable for many different applications due to its wide range of operation and robust construction. It can be used for low to mid-voltage applications, such as computer and communication systems, military equipment, automotive electronics, and more. The device is also designed to be compatible with surface-mount assembly for quick and easy installation.

The 1SMC45A TR13’s combination of wide operating voltage range, low-voltage switching characteristics, and low clamp voltage enables it to provide reliable transient protection for a wide range of applications. It is an economical and efficient protection device which is easy to install and provides reliable and effective protection for sensitive electronic or electrical equipment.

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