SA90AHE3/54

Voltage - Clamping (Max) @ Ipp:	146V
Supplier Device Package:	DO-204AC (DO-15)
Package / Case:	DO-204AC, DO-15, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	500W
Current - Peak Pulse (10/1000µs):	3.4A
Series:	Automotive, AEC-Q101, TransZorb®
Voltage - Breakdown (Min):	100V
Voltage - Reverse Standoff (Typ):	90V
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 (Transient Voltage Suppression) Diodes are widely used to provide protection to sensitive circuits from high voltage pulses and transient voltage spikes that can cause damage to the circuit. The SA90AHE3/54 is a general-purpose, fast-responding diode specifically designed for transient voltage protection applications. The SA90AHE3/54 can be used in a variety of applications, ranging from automotive and industrial electronics to consumer electronics and communication systems. It features a peak pulse voltage of 5.5V and a reverse breakdown voltage of 5.0V. Its operating temperature range is from -40 to 85 degrees Celsius. This TVS Diode also has a power dissipation rating of 600W and a low capacitance of 1.2pF. The SA90AHE3/54 can effectively reduce the voltage surge caused by external circuit changes due to ESD, lightning, inductive spikes, and logic power-up/down events. This diode has an extremely fast response time of 4 picoseconds which allows it to suppress transient voltage spikes quickly and prevent damage to the system. Furthermore, the SA90AHE3/54 is equipped with an internal Zener diode, which enables it to protect a wide range of circuits from overvoltage conditions.The working principle of the SA90AHE3/54 is based on the avalanche breakdown effect. When a surge of voltage reaches a certain threshold, the internal Zener diode breaks down and the voltage is suppressed. This breakdown effect releases the excess voltage and dissipates the current surge, thus protecting the circuit from damage. Additionally, SA90AHE3/54 has an internal thermal protection that prevents overheating of the device and safeguards the circuit from thermal damage.The SA90AHE3/54 is suitable for a variety of circuit protection applications. It is an ideal choice for protecting low-voltage and sensitive electronic components from voltage overshoots or transients. It can also be used to protect circuits from ESD immunity and secondary breakdown of power transistors. This diode can be used in metering systems, LED Driver applications, and automotive electronics applications.To ensure proper operation of the SA90AHE3/54, the user must ensure the following: secure electrical connection to the circuit board, confirm the voltage of the surge, and check the operational temperature of the device. The SA90AHE3/54 is designed to operate with a low forward voltage drop and minimal leakage current, thus allowing it to handle the short-term voltage spikes without affecting the device’s performance. Furthermore, the SA90AHE3/54 is an RoHS compliant and halogen-free device that ensures a safe and reliable operation.In conclusion, the SA90AHE3/54 is a fast-responding, general purpose TVS diode that is designed for transient voltage protection applications. It is suitable for a variety of circuit protection applications such as automotive electronics, LED Drivers, and metering systems. Its low capacitance, high peak power dissipation, and fast response time make it an ideal choice for protecting sensitive components from transient voltage spikes. With its RoHS compliant and halogen-free design, the SA90AHE3/54 ensures a safe and reliable operation that meets the standards of both consumer and industrial applications.

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