Overview
The BZX84B18LT3G is a Zener diode produced by onsemi, designed to provide voltage regulation in a compact and efficient package. This device is part of the BZX84 series, which offers a wide range of Zener breakdown voltages from 2.4 V to 75 V. The BZX84B18LT3G specifically has a nominal Zener voltage of 18 V, making it suitable for various voltage regulation and protection applications.
The device is housed in a surface-mount SOT-23 (TO-236) package, which is ideal for high-density PCB designs and automated board assembly. It is also Pb-free and RoHS compliant, ensuring environmental sustainability and regulatory compliance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage (VZ) | 17.6 - 18.4 | V |
| Test Current (IZT) | 5 | mA |
| Tolerance | ±2% | - |
| Maximum Power Dissipation (Ptot) | ≤250 | mW |
| Non-repetitive Peak Reverse Power Dissipation (PZSM) | ≤40 | W |
| Reverse Leakage Current (IR) | 0.05 | μA |
| Maximum Junction Temperature (TJ) | 150 | °C |
| Package Type | SOT-23 (TO-236) | - |
| Package Dimensions | 2.9 x 1.3 x 1 mm | - |
| ESD Rating | Class 3 (>16 kV) per Human Body Model | - |
Key Features
- Voltage Regulation: Provides stable voltage regulation with a wide range of Zener breakdown voltages.
- Compact Package: SOT-23 (TO-236) surface-mount package for high-density applications.
- Automated Assembly: Package designed for optimal automated board assembly.
- Environmental Compliance: Pb-free and RoHS compliant.
- ESD Protection: ESD rating of Class 3 (>16 kV) per Human Body Model.
- High Power Handling: Maximum power dissipation of 250 mW and non-repetitive peak reverse power dissipation of 40 W.
Applications
- Cellular Phones and Handheld Portables: Ideal for voltage regulation in compact, high-density designs.
- High-Density PC Boards: Suitable for applications requiring minimal space and high reliability.
- MOSFET Gate Protection: Can be used to protect MOSFET gates from voltage spikes.
- Waveform Clipping: Useful in applications requiring waveform clipping and voltage limiting.
- General Voltage Regulation: Suitable for various general voltage regulation and protection needs.
Q & A
- What is the nominal Zener voltage of the BZX84B18LT3G?
The nominal Zener voltage of the BZX84B18LT3G is 18 V.
- What is the tolerance of the BZX84B18LT3G Zener diode?
The tolerance of the BZX84B18LT3G is ±2%.
- What is the maximum power dissipation of the BZX84B18LT3G?
The maximum power dissipation is 250 mW.
- What is the package type of the BZX84B18LT3G?
The package type is SOT-23 (TO-236).
- Is the BZX84B18LT3G Pb-free and RoHS compliant?
- What is the ESD rating of the BZX84B18LT3G?
The ESD rating is Class 3 (>16 kV) per Human Body Model.
- What are some common applications of the BZX84B18LT3G?
Common applications include cellular phones, handheld portables, high-density PC boards, MOSFET gate protection, and waveform clipping.
- What is the maximum junction temperature of the BZX84B18LT3G?
The maximum junction temperature is 150°C.
- Is the BZX84B18LT3G suitable for automated board assembly?
- What is the non-repetitive peak reverse power dissipation of the BZX84B18LT3G?
The non-repetitive peak reverse power dissipation is 40 W.
