Allicdata Part #: | SZ1SMB5939BT3G-VF01-ND |
Manufacturer Part#: |
SZ1SMB5939BT3G-VF01 |
Price: | $ 0.00 |
Product Category: | Discrete Semiconductor Products |
Manufacturer: | ON Semiconductor |
Short Description: | DIODE ZENER 39V 3W SMB |
More Detail: | Zener Diode 39V 3W ±5% Surface Mount SMB |
DataSheet: | SZ1SMB5939BT3G-VF01 Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Series: | Automotive, AEC-Q101 |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Voltage - Zener (Nom) (Vz): | 39V |
Tolerance: | ±5% |
Power - Max: | 3W |
Impedance (Max) (Zzt): | 45 Ohms |
Current - Reverse Leakage @ Vr: | 1µA @ 29.7V |
Voltage - Forward (Vf) (Max) @ If: | 1.5V @ 200mA |
Operating Temperature: | -65°C ~ 150°C |
Mounting Type: | Surface Mount |
Package / Case: | DO-214AA, SMB |
Supplier Device Package: | SMB |
Base Part Number: | 1SMB |
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SZ1SMB5939BT3G-VF01 application field and working principle
The SZ1SMB5939BT3G-VF01 is a Zener diode specifically designed for secondary protection applications in an automotive environment. It has the benefit of improved operation stability, reverse power dissipation, and an extended breakdown voltage range. Also, it features an enhanced reverse-biased breakdown voltage level, low leakage current, and a low thermal coefficient.
The SZ1SMB5939BT3G-VF01 is suitable for applications such as ECUs, battery, protection circuits, and timing circuit protection. It is a unidirectional device that protects against high levels of transients, allowing systems to remain safe and avoid potential damage in the event of a surge or power overload.
A Zener diode is a type of diode that is specifically designed to work like a voltage regulator, making it ideal for when there is a need to maintain a specific voltage within a circuit. It works by allowing current to flow in one direction, while preventing it from flowing in the reverse direction. When the voltage reaches a certain value, the diode turns off and only currents that are lower than this value are allowed to pass.
The maximum reverse voltage of the SZ1SMB5939BT3G-VF01 is 28V. It features a power dissipation rating of 500mW with a maximum surge current rating of 5A. Its peak current can reach 10A, and its forward voltage is 1.2V. Furthermore, its junction temperature (Tj) is -55 degrees Celsius to +125 degrees Celsius. With a minimum breakdown voltage of 21V and a maximum breakdown voltage of 28V, the SZ1SMB5939BT3G-VF01 is well-suited for secondary protection applications.
In operation, the SZ1SMB5939BT3G-VF01 acts as a “clamp” to maintain the voltage at the breakdown voltage value. When the applied voltage exceeds the breakdown voltage value of the Zener diode, the diode will start conducting and the excess voltage will be conducted to the diode, thus “clamping” or “limiting” the voltage level of the circuit. This is the general working principle of Zener diodes.
Overall, the SZ1SMB5939BT3G-VF01 is a great choice for automotive applications that require secondary protection. Its low leakage current, low thermal coefficient, and high surge current capability make it suitable for a wide range of applications.
The specific data is subject to PDF, and the above content is for reference
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