SMDJ13CA R7G Circuit Protection

Series:	SMDJ
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Zener
Bidirectional Channels:	1
Voltage - Reverse Standoff (Typ):	13V
Voltage - Breakdown (Min):	14.4V
Voltage - Clamping (Max) @ Ipp:	21.5V
Current - Peak Pulse (10/1000µs):	139.5A
Power - Peak Pulse:	3000W (3kW)
Power Line Protection:	No
Applications:	General Purpose
Capacitance @ Frequency:	--
Operating Temperature:	-55°C ~ 175°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	DO-214AB, SMC
Supplier Device Package:	DO-214AB (SMC)

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Tvs-Diodes

TVS-diodes, short for Transient Voltage Suppressors, are a form of semiconductor which is used to protect electrical networks and equipment from surges in voltage. Commonly they are in the form of a diode, though other types, such as thyristors, transient voltage suppressors (TVS), solid-state relays, and Radio Frequency Interference (RFI) filters, are frequently used.When an overvoltage surge, or transient, occurs, the TVS-diode is triggered and it begins to conduct, acting as a kind of current-limiting resistor. As the surge passes, the TVS-diode turns off and returns to its non-conductive state. This action maintains the integrity of the network/equipment, preventing damage from excessive energy or current. Thus, TVS-diodes can be thought of as an insurance policy to protect circuitry and equipment from surges in voltage.The SMDJ13CA R7G is a voltage-dependent 5.1V uni-directional TVS-diode device. It is often used in board-level protection applications for IT and telecom equipment and is especially well-suited for applications where lightning-generated electromagnetic interference (EMI) poses a problem. Its surface mount construction is also ideal for compact and integrated applications.The SMDJ13CA R7G is capable of suppressing transients with peak wave levels as low as 10V and up to 5.1V. Its extremely fast response time allows it to protect against intense surges that would otherwise cause permanent damage. The device can also, through VBR clamping, effectively transfer excessive energy away from the protected device, which helps to prevent damage or erroneous operation. Additionally, the diode’s protective action is non-destructive so it can remain operational even after multipleshort-term transients.In normal operation, the SMDJ13CA R7G behaves as an open diode. Under normal voltage, it passes little current, allowing the electrical device or network to operate normally. However, when an overvoltage occurs, the device triggers and redirects the surge current away from the protected device. This helps to protect the device from overvoltage-induced damage.The SMDJ13CA R7G provides excellent protection against transients and is suitable for use in a variety of applications such as off-the-shelf personal computers, printers, monitors, modems, and general-purpose industrial equipment. It is also designed for use in systems that are susceptible to multiple transient events, such as ATX power supplies and DC-DC converters, as well as in some automotive applications.In summary, the SMDJ13CA R7G is an ideal TVS-diode solution for board-level protection applications. It can effectively protect against transients with peak wave levels as low as 10V and up to 5.1V, features an extremely fast response time, and can remain operational even after multiple transient events. Additionally, it is designed for a variety of applications, both off-the-shelf and in general-purpose industrial equipment, and can be easily integrated into compact circuits and systems.

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