SMBJ30A-13-F Circuit Protection

Current - Peak Pulse (10/1000µs):	12.4A
Base Part Number:	SMBJ30
Supplier Device Package:	SMB
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	600W
Series:	SMBJ
Voltage - Clamping (Max) @ Ipp:	48.4V
Voltage - Breakdown (Min):	33.3V
Voltage - Reverse Standoff (Typ):	30V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS – Diodes: SMBJ30A-13-F Application Field and Working Principle

Transient Voltage Suppressors (TVS) are a type of diode that protect sensitive electronic equipment and components against electrostatic discharge (ESD) and other electrical transients. The SMBJ30A-13-F is one of the most popular TVS diodes in this category. The device is designed with a low capacitance for high speed operation and utilizes a glass passivated junction for greater reliability. This product is ideal for securing automotive electronics from static damage and can be used in telecommunication equipment, computers and audio visual systems.In general, TVS diodes are used to protect sensitive electronics against voltage spikes and electrical over-voltages. They have a reverse breakdown voltage that is higher than an equivalent Zener diode and they respond to electrical transients faster. In addition, they can also protect equipment connected on the same power line from direct lightning events. The SMBJ30A-13-F TVS diode has a reverse breakdown voltage of 30V with a peak pulse power rating of 600W and an IEC level 3 ESD rating. This device is designed to provide fast clamping action at low operating voltages, helping to ensure devices connected to the same line are adequately protected. The TVS diode has two main structural components – the body and the cathode. The body consists of a p-type material connected to the anode and an n-type material connected to the cathode. An electrical current is generated when voltage is applied to the anode and the cathode. The body has a junction, which acts as a semiconductor junction. When the reverse voltage reaches the breakdown voltage of the junction, the anode and the cathode become conducting and the voltage on the cathode rises to maintain balance. This is the core principle of the TVS diode. Once the reverse voltage reaches the breakdown voltage, the current will continue to flow until the current reaches the device\'s clamping current, after which the voltage on the cathode will drop to its safe operating voltage. This prevents excessive current from travelling through the device and minimizes the damage caused to connected equipment.The SMBJ30A-13-F TVS diode is designed with high surge capability and a low capacitance to guarantee a high performance. It also features an enhanced ESD immunity level of normal diodes, allowing it to withstand more than 10,000V of ESD without any damage. The SMBJ30A-13-F is a cost-effective and dependable solution for protecting sensitive electronics from static and transient events. The device is sturdy and designed for use in harsh working environments. It is the perfect solution for protecting automotive electronic systems, telecommunication equipment, computers, and audio and video systems. In conclusion, the SMBJ30A-13-F TVS diode is an efficient and reliable device that protects sensitive electronics from electrostatic discharge and voltage spikes. The device has an enhanced ESD immunity level which guarantees reliable operation, even after exposure to 10,000V of ESD. Furthermore, the low capacitance and fast response time make this device an ideal choice for protecting automotive electronic systems, telecommunication equipment, computers and audio and video systems.

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