MMSZ5257B-E3-08

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	33V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	58 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 25V
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SOD-123
Supplier Device Package:	SOD-123

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MMSZ5257B-E3-08 is a zener diode from Vishay, under the "Single" category on the Diodes - Zener range. It is a small surface mount device and is designed for high speed switching and voltage regulation applications.The MMSZ5257B-E3-08 is capable of withstanding voltages up to ±75V, with a 5.1V zener voltage. The device is bidirectional, meaning current can flow in either direction across the diode. The I-V characteristic of the device is linear, meaning the device will exhibit a linear relationship between the applied voltage and the resulting current.The design of the MMSZ5257B-E3-08 features a low on-state, or forward, voltage drop. This helps to minimize power dissipation and optimize efficiency. Furthermore, the device has a maximum operating temperature of -55°C to +150°C, giving users a wide range of operating temperatures to work with.The MMSZ5257B-E3-08 is widely used in a variety of applications. For instance, in power supplies, it can be utilized to stabilize output voltage and minimize power dissipation. It can also be used as an on-board ESD protector, protecting sensitive components from surges and static electricity. Furthermore, it is suitable for use in low voltage DC-DC converters, helping to minimize power loss and allowing for more efficient operation of the device.The working principle of the MMSZ5257B-E3-08 is based on the design of a zener diode. This type of diode allows current to flow in either direction, with one direction being limited by the breakdown voltage of the device. The reversed breakdown voltage of the MMSZ5257B-E3-08 is determined by its zener voltage, while the forward voltage is determined by the device’s forward voltage drop.When the voltage across the diode exceeds the breakdown voltage, electrons flow through the diode and the applied voltage is regulated by the zener voltage of the diode. As the diode is in operation, the zener voltage is regulated by the applied current, allowing for a stable output voltage.The MMSZ5257B-E3-08 is a versatile and efficient device, capable of providing excellent performance in a variety of applications. Thanks to its wide voltage range and low voltage drop, the device is capable of delivering reliable output power and stable output voltages. It is also suitable for operation over a wide range of temperatures and can be used to protect sensitive components from static electricity and surges. With its linear I-V characteristic, the MMSZ5257B-E3-08 is an ideal choice for power supplies, low-voltage DC-DC converters, and on-board ESD protection.

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