SMBJ5388B-TP

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	200V
Tolerance:	±5%
Power - Max:	5W
Impedance (Max) (Zzt):	480 Ohms
Current - Reverse Leakage @ Vr:	500nA @ 152V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 1A
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-214AA, SMB
Supplier Device Package:	DO-214AA (SMB)
Base Part Number:	SMBJ5388

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The SMBJ5388B-TP is an ultra-small, surface mount zener diode, which is classified under the single diodes category. Typically, it is used in over-voltage protection circuits, signal and ESD protection, and clamp circuits. Due to the ultra-small size, it is becoming increasingly popular in many applications, offering versatility and cost-effectiveness.
The SMBJ5388B-TP is designed to provide a reliable and efficient way of protecting components from over-voltage situations and has a maximum power dissipation rating of 400mW. The device is available in a surface mount form factor, rated to withstand a reverse working voltage of up to 5.8V, and an operating temperature range of -55 to +175°C. It features an ultra-small package size of just 2.15 x 0.8 x 0.6mm, making it ideal for use in cramped physical applications.
At the heart of the SMBJ5388B-TP is an integral Zener diode, which provides over-voltage protection by conducting current in either the forward or reverse direction. In the forward direction, the device acts as a normal diode allowing the current to flow in one direction. When the device is reverse biased and the voltage exceeded the breakdown voltage of the diode, the current will flow in the reverse direction and the Zener effect is triggered. This Zener action then dissipates the excess voltage and prevents voltage transients from damaging sensitive components.
The SMBJ5388B-TP is a uni-directional device, usually only conduct current from the anode to cathode. As the device is non-polarised, it is not necessary to determine the correct polarity when connecting the device. The low leakage current characteristics make it ideal for use in low voltage circuits, such as with voltage regulators and audio amplifier circuits. The bi-directional Zener action of the device provides additional protection against electrostatic discharge (ESD).
The SMBJ5388B-TP offers a wide range of applications, such as: protection against over-voltage conditions in the power supply, protection against ESD, clamping circuits in audio and video equipment and general-purpose protection in communication systems. The small package size makes this device ideal for use in cramped physical applications, such as cellular phones, hand-held devices, industrial instrumentation and automobiles.
In conclusion, the SMBJ5388B-TP is an ultra-small, surface mount Zener diode, which provides reliable and efficient over-voltage protection for a variety of applications. It offers a low capacitance, low-leakage current and a maximum power dissipation rating of 400mW, making it ideal for low voltage, high current circuits. The small package size and wide operating temperature range make this device suitable for many physical applications where space is at a premium. With its versatile design and high performance, the SMBJ5388B-TP is an invaluable addition to any digital protection system.

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