MMSZ5249B Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	19V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	23 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 14V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SOD-123
Supplier Device Package:	SOD-123
Base Part Number:	MMSZ5249B

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MMSZ5249B is a small signal surface mount Zenner diode, manufactured by ON Semiconductor, which is widely used in today\'s electronics industry. Due to its low current handling capacity and high temperature stability, it is best suited for use in applications requiring precision control of power levels. In order to understand the application field and working principle of MMSZ5249B, it is important to gain knowledge of how a Zenner diode works in general. A Zenner diode, also known as a Zener diode, is an electronic component which utilizes the avalanche property of diodes to regulate a reverse voltage above the Zener breakdown voltage. When the Zener diode is forward biased, the current that passes through the diode is controlled by the external voltage. The current limiting resistor determines the current that is passed through the diode and the breakdown voltage determines the actual voltage across the diode.The MMSZ5249B is an ideal candidate for applications where an adjustable reference voltage is needed to control the conduction or power level of a device. These devices have the ability to regulate a reverse voltage which is greater than their Zener breakdown voltage, thereby providing precision and consistent control of power levels.Specifically, the MMSZ5249B has a Zener voltage range of 5.1 to 7.5 V and a power dissipation of 500 mW. It is also capable of handling currents of up to 100 mA and has an operating temperature of -55 to +125 °C. This makes it an ideal choice for applications such as voltage references, linear voltage regulators, motor speed and voltage control, etc. Moreover, its small size makes it convenient for use in compact electronic devices.To summarize, the MMSZ5249B is a small signal surface mount Zener diode which is widely used in the contemporary electronics industry due to its efficient power level regulation capabilities. With a wide range of operating temperatures and current handling abilities, this device is well suited for various applications, such as voltage references, linear voltage regulators, motor speed and voltage control, etc. The MMSZ5249B is a reliable components that offers precision control, consistent quality and efficiency.

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