Overview
The 1SMB5918BT3G is a 3 Watt Plastic Surface Mount Zener Voltage Regulator Diode produced by onsemi. This component is part of the 1SMB59xxBT3G series, which offers a range of Zener voltages from 3.3 V to 200 V. The 1SMB5918BT3G is specifically designed to provide a stable Zener voltage of 5.1 V, making it suitable for various voltage regulation and protection applications.
This diode features a high ESD rating of Class 3 (> 16 kV) per Human Body Model, ensuring robust protection against electrostatic discharge. The device is also AEC-Q101 qualified and PPAP capable, making it reliable for automotive and other demanding applications.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Zener Voltage @ IZT | VZ | 4.84 - 5.36 | V |
| Reverse Current @ IZT | IZT | 4 mA | mA |
| Maximum Zener Impedance @ IZT | ZZT | 73.5 Ω | Ω |
| Reverse Leakage Current @ VR | IR | 5 μA | μA |
| Maximum DC Zener Current | IZM | 350 mA | mA |
| Maximum Steady State Power Dissipation @ TL = 75°C | PD | 3.0 W | W |
| Thermal Resistance from Junction-to-Lead | RθJL | 25 °C/W | °C/W |
| Operating and Storage Temperature Range | TJ, Tstg | -65 to +150 °C | °C |
Key Features
- Zener Voltage Range: 4.84 V to 5.36 V
- ESD Rating: Class 3 (> 16 kV) per Human Body Model
- Flat Handling Surface: For accurate placement
- Package Design: Suitable for top side or bottom circuit board mounting
- AEC-Q101 Qualified and PPAP Capable: Reliable for automotive and other demanding applications
- Pb-Free Device: Compliant with lead-free requirements
- Corrosion Resistant Finish: All external surfaces are corrosion resistant and leads are readily solderable
- High Maximum Steady State Power Dissipation: Up to 3.0 W at TL = 75°C
Applications
- Voltage Regulation: Provides stable voltage regulation in various electronic circuits.
- Overvoltage Protection: Protects circuits from voltage spikes and surges.
- Automotive Systems: Suitable for use in automotive applications due to AEC-Q101 qualification.
- Industrial Control Systems: Used in industrial control systems for reliable voltage regulation and protection.
- Consumer Electronics: Found in consumer electronics for voltage stabilization and protection.
Q & A
- What is the Zener voltage range of the 1SMB5918BT3G?
The Zener voltage range of the 1SMB5918BT3G is from 4.84 V to 5.36 V.
- What is the ESD rating of the 1SMB5918BT3G?
The ESD rating of the 1SMB5918BT3G is Class 3 (> 16 kV) per Human Body Model.
- Is the 1SMB5918BT3G AEC-Q101 qualified?
- What is the maximum steady state power dissipation of the 1SMB5918BT3G at TL = 75°C?
The maximum steady state power dissipation is 3.0 W at TL = 75°C.
- What is the thermal resistance from junction-to-lead for the 1SMB5918BT3G?
The thermal resistance from junction-to-lead is 25 °C/W.
- What is the operating and storage temperature range for the 1SMB5918BT3G?
The operating and storage temperature range is -65 to +150 °C.
- Is the 1SMB5918BT3G a Pb-Free device?
- What are the typical applications of the 1SMB5918BT3G?
The 1SMB5918BT3G is typically used in voltage regulation, overvoltage protection, automotive systems, industrial control systems, and consumer electronics.
- How is the polarity of the 1SMB5918BT3G indicated?
The polarity of the 1SMB5918BT3G is indicated by a polarity band on the cathode side.
- What is the maximum forward current for the 1SMB5918BT3G?
The maximum forward current for the 1SMB5918BT3G is 350 mA.
