Overview
The 1SMA5937BT3G is a 1.5 Watt Zener diode produced by onsemi, designed for general purpose voltage regulation applications. This device is part of the 1SMA59xxBT3G series, which offers a wide range of Zener breakdown voltages from 3.3 V to 68 V. The 1SMA5937BT3G specifically has a Zener voltage of 33 V, making it suitable for various voltage regulation needs in electronic circuits.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Zener Voltage @ IZT | VZ | 31.35 - 33 - 34.65 | V |
| Reverse Current @ IZT | IZT | 11.4 | mA |
| Maximum Zener Impedance @ IZT | ZZT | 45.7 | Ω |
| Reverse Leakage Current @ VR | IR | 0.25 | μA |
| Maximum DC Zener Current | IZM | 500 | mA |
| DC Power Dissipation @ TL = 75°C | PD | 1.5 | W |
| Thermal Resistance, Junction-to-Lead | RθJL | 50 | °C/W |
| Operating and Storage Temperature Range | TJ, Tstg | -65 to +150 | °C |
| ESD Rating | > 16 kV | ||
| Package Type | SMA-2 | ||
| Maximum Case Temperature for Soldering | 260°C for 10 seconds |
Key Features
- Standard Zener Breakdown Voltage Range: 3.3 V to 68 V, with the 1SMA5937BT3G specifically at 33 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.
- Low Profile Package: Ideal for space-constrained applications.
- Ideal Replacement for MELF Packages: Compatible with existing designs.
- AEC-Q101 Qualified and PPAP Capable: Suitable for automotive and other critical applications.
- Pb-Free Packages: Environmentally friendly and compliant with lead-free regulations.
Applications
- Voltage Regulation: General purpose voltage regulation in electronic circuits.
- Waveform Clipping: Limiting voltage peaks in waveforms.
- MOSFET Gate Protection: Protecting MOSFET gates from overvoltage.
- Automotive and Industrial Applications: Suitable due to AEC-Q101 qualification and PPAP capability.
Q & A
- What is the Zener voltage of the 1SMA5937BT3G?
The Zener voltage of the 1SMA5937BT3G is between 31.35 V and 34.65 V.
- What is the maximum DC power dissipation of the 1SMA5937BT3G?
The maximum DC power dissipation is 1.5 W at TL = 75°C.
- What is the ESD rating of the 1SMA5937BT3G?
The ESD rating is Class 3 (> 16 kV) per Human Body Model.
- What is the operating temperature range of the 1SMA5937BT3G?
The operating and storage temperature range is -65°C to +150°C.
- Is the 1SMA5937BT3G Pb-free?
- What package type does the 1SMA5937BT3G use?
The package type is SMA-2.
- What is the maximum case temperature for soldering?
The maximum case temperature for soldering is 260°C for 10 seconds.
- Is the 1SMA5937BT3G suitable for automotive applications?
- What are some common applications of the 1SMA5937BT3G?
- Can the 1SMA5937BT3G be used as a replacement for MELF packages?
