MM3Z18VT1G
Introduction
The MM3Z18VT1G is a zener diode that belongs to the category of semiconductor devices. It is commonly used in electronic circuits for voltage regulation and protection against voltage spikes. This entry provides an overview of the basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models of the MM3Z18VT1G.
Basic Information Overview
- Category: Semiconductor device
- Use: Voltage regulation and protection
- Characteristics: Zener diode, low leakage current, high reliability
- Package: SOD-323, SOD-523
- Essence: Voltage regulation and transient voltage suppression
- Packaging/Quantity: Tape and reel packaging, quantity varies based on supplier
Specifications
- Voltage - Zener (Nom) (Vz): 18V
- Power - Max: 200mW
- Impedance (Max) (Zzt): 40 Ohm
- Current - Reverse Leakage @ Vr: 100nA @ 13.5V
- Voltage - Forward (Vf) (Max) @ If: 900mV @ 10mA
- Operating Temperature: -65°C ~ 150°C
Detailed Pin Configuration
The MM3Z18VT1G zener diode typically has two pins, with the cathode identified by a band or mark on the body of the diode.
Functional Features
- Voltage Regulation: The MM3Z18VT1G provides a stable output voltage of 18V, making it suitable for voltage regulation in various electronic circuits.
- Transient Voltage Suppression: It protects sensitive electronic components from voltage spikes and transients, ensuring the reliability of the circuit.
Advantages and Disadvantages
- Advantages:
- Precise voltage regulation
- Low leakage current
- High reliability
- Disadvantages:
- Limited power dissipation capability
- Sensitive to temperature variations
Working Principles
The MM3Z18VT1G operates based on the principle of the Zener effect, where it maintains a constant voltage across its terminals when reverse-biased, allowing it to regulate the voltage in a circuit.
Detailed Application Field Plans
The MM3Z18VT1G is widely used in various applications, including: - Voltage regulation in power supplies - Overvoltage protection in electronic circuits - Signal clamping and limiting
Detailed and Complete Alternative Models
Some alternative models to the MM3Z18VT1G include: - BZX84C18 - MMSZ18T1G - 1N4746A
In conclusion, the MM3Z18VT1G zener diode is a crucial component in electronic circuits, providing precise voltage regulation and transient voltage suppression. Its characteristics, specifications, and application versatility make it a valuable asset in the field of electronics.
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What is the MM3Z18VT1G?
- The MM3Z18VT1G is a Zener diode with a voltage of 18V and a power dissipation of 200mW, commonly used in voltage regulation and protection circuits.
What are the typical applications of MM3Z18VT1G?
- It is commonly used in voltage regulation, overvoltage protection, and voltage reference circuits in various electronic devices and systems.
What is the maximum current that MM3Z18VT1G can handle?
- The maximum current for MM3Z18VT1G is typically around 50mA, making it suitable for low-power applications.
How does MM3Z18VT1G provide overvoltage protection?
- When the voltage across the diode exceeds its breakdown voltage (18V), the MM3Z18VT1G conducts, shunting excess current to protect downstream components.
Can MM3Z18VT1G be used in reverse bias?
- Yes, the MM3Z18VT1G can be used in reverse bias as a voltage reference or protection diode, but care should be taken to stay within the specified reverse voltage limits.
What are the temperature considerations for MM3Z18VT1G?
- The MM3Z18VT1G has a specified operating temperature range of -65°C to +150°C, making it suitable for a wide range of environments.
Is MM3Z18VT1G suitable for precision voltage references?
- While the MM3Z18VT1G provides a stable voltage reference, its tolerance may not be suitable for precision applications without additional calibration.
Can multiple MM3Z18VT1G diodes be connected in series or parallel?
- Multiple MM3Z18VT1G diodes can be connected in series to create higher breakdown voltages, but connecting them in parallel is not recommended due to mismatched characteristics.
What are the package options available for MM3Z18VT1G?
- The MM3Z18VT1G is available in various surface mount packages such as SOD-323 and SOD-523, offering flexibility for different PCB layouts.
Are there any common failure modes for MM3Z18VT1G?
- Common failure modes include exceeding the maximum power dissipation, exceeding the maximum current, or exposure to voltages beyond the diode's ratings. Proper design and usage can mitigate these risks.