SMLJ14A

Voltage - Clamping (Max) @ Ipp:	23.2V
Supplier Device Package:	SMC (DO-214AB)
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	3000W (3kW)
Current - Peak Pulse (10/1000µs):	129.4A
Series:	SMLJ
Voltage - Breakdown (Min):	15.6V
Voltage - Reverse Standoff (Typ):	14V
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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SMLJ14A TVS - Diodes Application Field and Working Principle

Transient Voltage Suppressors (TVS) diodes are a special type of diode that provide superior protection from destructive power supply transients and electrostatic discharges (ESDs). The SMLJ14A TVS diode is an example of such a device developed by semiconductor manufacturer STMicroelectronics to protect against electrical overstress and electrostatic discharges. This article will cover the application field, structure and working principle of the SMLJ14A TVS diode.The SMLJ14A TVS diode is specifically designed for use in applications that require protection against electrical overstress that can damage circuitry and cause system failure or malfunction. These include automotive systems, industrial and consumer electronics, and telecommunications. The device is offered in a variety of packages such as through-hole, surface-mount SOD523, and compact SMAJ14A for space-constrained applications.The SMLJ14A consists of a silicon diode and a metal-oxide varistor (MOV) connected in parallel. The MOV\'s function is to absorb and clamp high-voltage transients and protect the device. The diode acts like a standard diode but operates in reverse bias when the amplitude of the voltage transient exceeds its threshold voltage. The diode then quickly switches into conduction and reduces the voltage to a safe level.The SMLJ14A is capable of withstanding high energy transients with peaks up to 14A. This is achieved through its high peak pulse power rating of 7.2kW and VBR of 5V@250A. The device also has excellent ESD protection up to 30KV and a low capacitance of 0.40 pF. In addition, the device features a fast response time around 25ns.The SMLJ14A is ideal for protecting devices from ESD, power supply transients, radio frequency interference (RFI), and electro-magnetic interference (EMI). As such, the device can be used in a variety of applications such as automotive, industrial, communications, and consumer electronics.In conclusion, the SMLJ14A TVS diode from STMicroelectronics is a highly reliable and robust device that can provide superior protection against transients and ESD. The device has a wide range of applications and features, making it an ideal choice for protecting electronic circuits from electrical overstress, ESD, and electromagnetic interference.

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