Overview
The BZX84B18-HE3-18 is a high-quality Zener diode produced by Vishay General Semiconductor - Diodes Division. This component is part of the BZX84 series, which is known for its reliability and performance in various electronic applications. The BZX84B18-HE3-18 is specifically designed to meet the stringent requirements of automotive and industrial environments, being AEC-Q101 qualified and RoHS compliant. It offers a nominal Zener voltage of 18V, making it suitable for voltage regulation and protection in a wide range of circuits.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Part Number | BZX84B18-HE3-18 | - |
| Main Category | Discrete Semiconductor Products | - |
| Sub Category | Diodes - Zener - Single | - |
| Brand | Vishay | - |
| Description | DIODE ZENER 18V 300MW SOT23-3 | - |
| Series | Automotive, AEC-Q101 | - |
| Voltage - Zener (Nom) (Vz) | 18V | V |
| Tolerance | ±2% | - |
| Power - Max | 300mW | mW |
| Impedance (Max) (Zzt) | 45 Ohm | Ohm |
| Current - Reverse Leakage @ Vr | 50nA @ 12.6V | nA @ V |
| Operating Temperature | -55°C ~ 150°C | °C |
| Mounting Type | Surface Mount | - |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | - |
| Supplier Device Package | SOT-23-3 | - |
Key Features
- Silicon Planar Zener Diodes: The BZX84B18-HE3-18 is a silicon planar Zener diode, offering stable and reliable voltage regulation.
- AEC-Q101 Qualified: This diode is qualified to the AEC-Q101 standard, ensuring it meets the rigorous requirements of the automotive industry.
- RoHS Compliant: The component is RoHS compliant, making it suitable for use in environmentally friendly designs.
- High Temperature Range: It operates over a wide temperature range of -55°C to 150°C, making it versatile for various applications.
- Low Reverse Leakage Current: The diode has a low reverse leakage current of 50nA at 12.6V, which is beneficial for power-saving designs.
- Compact Package: The SOT-23-3 package is compact and suitable for surface mount applications, saving board space.
Applications
The BZX84B18-HE3-18 Zener diode is widely used in various applications, including:
- Voltage Regulation: It is used to regulate voltage in power supplies, ensuring stable output voltages.
- Overvoltage Protection: The diode protects circuits from overvoltage conditions, preventing damage to sensitive components.
- Automotive Systems: Given its AEC-Q101 qualification, it is commonly used in automotive systems for voltage regulation and protection.
- Industrial Control Systems: It is used in industrial control systems to provide reliable voltage regulation and protection against voltage spikes.
- Consumer Electronics: The diode is also used in consumer electronics for voltage regulation and protection in various devices.
Q & A
- What is the nominal Zener voltage of the BZX84B18-HE3-18?
The nominal Zener voltage is 18V. - What is the maximum power dissipation of the BZX84B18-HE3-18?
The maximum power dissipation is 300mW. - What is the operating temperature range of the BZX84B18-HE3-18?
The operating temperature range is -55°C to 150°C. - Is the BZX84B18-HE3-18 RoHS compliant?
Yes, the diode is RoHS compliant. - What is the package type of the BZX84B18-HE3-18?
The package type is SOT-23-3. - What is the reverse leakage current of the BZX84B18-HE3-18 at 12.6V?
The reverse leakage current is 50nA at 12.6V. - Is the BZX84B18-HE3-18 AEC-Q101 qualified?
Yes, it is AEC-Q101 qualified. - What are the typical applications of the BZX84B18-HE3-18?
Typical applications include voltage regulation, overvoltage protection, automotive systems, industrial control systems, and consumer electronics. - What is the impedance (Zzt) of the BZX84B18-HE3-18?
The impedance (Zzt) is 45 Ohms. - How is the BZX84B18-HE3-18 packaged?
The diode is packaged in Tape & Reel (TR).
