The Voltage Regulator Diode ZM4747A Features High Precision, Robust Power Handling Capability and Low Current Leakage
Zener diodes are essential components in electronic circuits, providing voltage regulation and protection against voltage fluctuations. The ZM4747A Zener diode is a popular choice among engineers due to its high precision, robust power handling capabilities, and low current leakage. This article will explore the key characteristics of the ZM4747A, including its typical voltage, precision, power dissipation, current leakage, and impedance, highlighting its significance in modern electronic design.
SLKOR Voltage Regulator Diode ZM4747A product photo
ZM4747A Overview:
The ZM4747A is a well-known Zener diode that regulates voltage by maintaining a constant voltage across its terminals, despite variations in input voltage or load conditions. It is widely used in various applications, including voltage regulation, voltage clamping, and transient suppression.
Slkor Voltage Regulator Diode ZM4747A specification
Typical Voltage (VZTyp):
The ZM4747A has a typical Zener voltage (VZTyp) of 20V. This value represents the voltage at which the diode starts regulating the current passing through it, ensuring a stable voltage output despite changes in the input voltage or load conditions.
Precision (±5%):
Precision is an important parameter for Zener diodes, as it determines the accuracy of voltage regulation. The ZM4747A has a precision rating of ±5%, meaning the actual Zener voltage may deviate by a maximum of 5% from the specified value. This high level of precision ensures accurate voltage regulation across a wide range of applications.
Power Dissipation (PD):
With a power dissipation rating of 1W, the ZM4747A can handle substantial power without getting damaged or overheated. This capability makes it suitable for applications that require high power dissipation, providing reliable performance even under challenging conditions.
Current Leakage (Ir):
The ZM4747A exhibits low current leakage, with a maximum leakage current (Ir) of 5μA at 15.2V. This attribute ensures minimal power loss and enhances the overall efficiency of the circuit, making it an ideal choice for power-sensitive applications.
Impedance (Zzt):
Impedance (Zzt) is another critical characteristic of Zener diodes, representing the equivalent series resistance of the diode. The ZM4747A features an impedance of 22Ω, which is relatively low compared to other Zener diodes. Lower impedance allows for better voltage regulation and reduced power dissipation, making it an excellent choice for voltage stabilization in sensitive electronic systems.
Parameters of Slkor Voltage Regulator Diode ZM4747A
Conclusion:
The ZM4747A Zener diode offers high precision, robust power handling capability, and low current leakage, making it an ideal choice for voltage regulation and transient protection in electronic circuits. With its typical voltage of 20V, ±5% precision, 1W power dissipation capability, 5μA current leakage at 15.2V, and 22Ω impedance, it proves to be an indispensable component in modern electronic design. Whether it's stabilizing voltage levels in power supplies, protecting sensitive components from voltage spikes, or ensuring the stability of communication systems, the ZM4747A delivers reliable performance and ensures the integrity of electronic systems.
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