Overview
The 1SMA5943BT3G 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 standard Zener breakdown voltages from 3.3 V to 68 V. The 1SMA5943BT3G specifically has a Zener voltage range of 53.2 V to 58.8 V, with a nominal voltage of 56 V. It is AEC-Q101 qualified and PPAP capable, making it suitable for automotive and other applications requiring stringent quality and reliability standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage (VZ) | 53.2 - 58.8 | V |
| Nominal Zener Voltage | 56 | V |
| Maximum DC Zener Current (IZM) | 20 mA | mA |
| Reverse Current (IR) @ VR | 0.25 μA | μA |
| Forward Voltage (VF) @ IF | 1.2 V Max. @ IF = 200 mA | V |
| Maximum Power Dissipation @ TL = 75°C | 1.5 W | W |
| Thermal Resistance, Junction-to-Lead (RθJL) | 50 °C/W | °C/W |
| Operating and Storage Temperature Range | -65 to +150 °C | °C |
| ESD Rating | Class 3 (>16 kV) per Human Body Model | |
| Package Type | SMA (DO-214AC) | |
| Flammability Rating | UL 94 V-0 |
Key Features
- Standard Zener breakdown voltage range of 53.2 V to 58.8 V with a nominal voltage of 56 V.
- ESD Rating of Class 3 (>16 kV) per Human Body Model.
- Flat handling surface for accurate placement.
- Package design for top side or bottom circuit board mounting.
- Low profile package.
- Ideal replacement for MELF packages.
- AEC-Q101 qualified and PPAP capable.
- Pb-free packages available.
- Corrosion-resistant finish with readily solderable leads.
Applications
- Voltage regulation in various electronic circuits.
- Waveform clipping and voltage limiting.
- MOSFET gate protection.
- Automotive and industrial applications requiring high reliability and quality standards.
- General purpose usage in a wide range of electronic devices.
Q & A
- What is the nominal Zener voltage of the 1SMA5943BT3G? The nominal Zener voltage is 56 V.
- What is the maximum DC Zener current (IZM) for this device? The maximum DC Zener current is 20 mA.
- What is the ESD rating of the 1SMA5943BT3G? The ESD rating is Class 3 (>16 kV) per Human Body Model.
- What is the maximum power dissipation at TL = 75°C? The maximum power dissipation is 1.5 W.
- What is the operating and storage temperature range for this device? The operating and storage temperature range is -65 to +150 °C.
- Is the 1SMA5943BT3G AEC-Q101 qualified? Yes, it is AEC-Q101 qualified and PPAP capable.
- What type of package does the 1SMA5943BT3G come in? It comes in an SMA (DO-214AC) package.
- Is the 1SMA5943BT3G Pb-free? Yes, Pb-free packages are available.
- What are some common applications for the 1SMA5943BT3G? Common applications include voltage regulation, waveform clipping, MOSFET gate protection, and automotive and industrial uses.
- What is the flammability rating of the 1SMA5943BT3G? The flammability rating is UL 94 V-0.
