Overview
The BZX84C18ET3 is a silicon planar Zener diode produced by onsemi, designed for voltage regulation in a variety of applications. This component is part of the BZX84 series, which is known for its high reliability and performance in compact, surface-mount packages. The BZX84C18ET3 is specifically rated for a Zener voltage of 18 volts and is suitable for use in high-density electronic circuits.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage Range | 17.1 to 19.1 | V |
| Test Current (IZT) | 5 mA | mA |
| Reverse Leakage Current (IR) | 0.1 μA | μA |
| Dynamic Resistance (ZZ) | 150 Ω | Ω |
| Power Dissipation | 250 mW | mW |
| Junction-to-Ambient Thermal Resistance (RθJA) | 465 °C/W | °C/W |
| Operating Temperature Range | -55 to +150 °C | °C |
| Storage Temperature Range | -55 to +150 °C | °C |
| ESD Rating | > 16 kV (Human Body Model) | kV |
| Package | SOT-23 |
Key Features
- Silicon planar Zener diodes with a Zener voltage range of 2.4 V to 75 V, including the 18 V rating for the BZX84C18ET3.
- Available in SOT-23 surface-mount package, designed for high-density applications and optimal automated board assembly.
- High ESD rating of Class 3 (> 16 kV) according to the Human Body Model.
- Power dissipation of 250 mW on FR-4 or FR-5 board.
- Peak power handling of 225 W (8 x 20 μs).
- AEC-Q101 qualified for automotive and other demanding applications.
- RoHS-compliant and Pb-free packaging).
Applications
- Cellular phones and other handheld portable devices.
- High-density PC boards and other compact electronic circuits).
- Automotive electronics, particularly where AEC-Q101 qualification is required).
- Voltage regulation in power supplies and DC-DC converters).
- Protection circuits against voltage spikes and overvoltages).
Q & A
- What is the Zener voltage range of the BZX84C18ET3?
The Zener voltage range for the BZX84C18ET3 is 17.1 to 19.1 volts).
- What is the typical test current (IZT) for the BZX84C18ET3?
The typical test current (IZT) for the BZX84C18ET3 is 5 mA).
- What is the power dissipation rating of the BZX84C18ET3?
The power dissipation rating of the BZX84C18ET3 is 250 mW on FR-4 or FR-5 board).
- What is the ESD rating of the BZX84C18ET3?
The ESD rating of the BZX84C18ET3 is > 16 kV according to the Human Body Model).
- Is the BZX84C18ET3 AEC-Q101 qualified?
- What is the package type of the BZX84C18ET3?
The BZX84C18ET3 is packaged in a SOT-23 surface-mount package).
- What is the operating temperature range of the BZX84C18ET3?
The operating temperature range of the BZX84C18ET3 is -55 to +150 °C).
- Is the BZX84C18ET3 RoHS-compliant?
- What are some common applications of the BZX84C18ET3?
- What is the peak power handling capability of the BZX84C18ET3?
