SMLJ51A

Voltage - Clamping (Max) @ Ipp:	82.4V
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):	36.4A
Series:	SMLJ
Voltage - Breakdown (Min):	56.7V
Voltage - Reverse Standoff (Typ):	51V
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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The SMLJ51A is a bidirectional, symmetrical, Transient Voltage Suppressor (TVS) diode. It is also known as a "clamper" or "diode voltage suppressor." It is a highly specialized form of diode specifically designed to protect sensitive electronic components from damage by suppressing transient voltages.The SMLJ51A is designed to protect against voltage transients that can occur when two conductors are connected in a circuit-sensing situation. It is designed to reduce the impact of sudden electrical disturbances that can cause damage to sensitive electrical components. Transient voltage suppressors are used in a wide variety of applications, including automobiles, consumer electronics, telecommunications, industrial electronics, and aerospace applications.The SMLJ51A is an asymmetric TVS diode which is designed to quickly clamp a large voltage transients between a ground connection and the negative terminal of a supply. It is a bidirectional device, meaning it operates on both rising and falling transients. It is capable of clamping transient voltages up to the maximum breakdown voltage of 36V.The operation of the SMLJ51A is relatively simple. The device is designed with two internal diodes connected in series and opposite directions. The anode of one diode is connected to the supply voltage, while the cathode of the other diode is connected to ground. When a voltage transient (greater than the device breakdown voltage) is applied across the device, the current quickly builds up. The device then quickly clamps the voltage transient and dissipates the energy of the transient in one of two ways; heating or shunting.The SMLJ51A transient voltage suppressor is suitable for a variety of applications such as surge suppression, over-voltage clamping, and line regulation. It also offers protection against electrostatic discharge (ESD) and can be used in automotive, power supplies, control circuits, and other applications requiring transient protection.In automotive applications, the SMLJ51A transient voltage suppressor is used to suppress transients caused by alternator or battery voltage fluctuations, as well as the surge caused by spark plug firing. It is also used to protect sensitive electronic components from voltage transients caused by engine restarts.In consumer electronics, the SMLJ51A is often used in power supplies, as well as to protect sensitive audio equipment operated at high levels of volume. It can also be used as a protection device for audio amplifiers from over-current conditions.In industrial applications, the SMLJ51A is commonly used to protect sensitive electrical components from high voltage transients. It can be used to protect motor control circuits, servo systems, communications systems, and other electronic devices.In telecommunications, the SMLJ51A is often used to protect sensitive equipment from over-voltage and over-current conditions. It can also be used to reduce broadband noise and interference, protecting against damage and degradation caused by external noise sources.The SMLJ51A has a wide range of applications, making it a versatile and reliable transient voltage suppressor. With its bidirectional design and ability to quickly clamp voltage transients, it offers unmatched protection against damaging and destructive voltage transients, effectively protecting sensitive electronic components from damage.

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