Overview
The 1SMA5917BT3G is a 1.5 W Zener diode produced by onsemi, designed for general purpose voltage regulation applications. This device is part of the 1SMA59xxBT3G series, which offers a range of Zener breakdown voltages from 3.3 V to 68 V. The 1SMA5917BT3G specifically has a Zener voltage of 4.7 V, making it suitable for various voltage regulation, waveform clipping, and MOSFET gate protection tasks. It is also ideal for use in automotive and other applications requiring unique site and control change requirements due to its AEC-Q101 qualification and PPAP capability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage (VZ) | 4.46 - 4.94 | V |
| Maximum Zener Voltage (VZ) at IZT | 4.7 | V |
| Reverse Current (IZT) | 5.0 | mA |
| Maximum Zener Impedance (ZZT) at IZT | 79.8 | Ω |
| Reverse Leakage Current (IR) at VR | 1.5 | μA |
| Maximum DC Zener Current (IZM) | 319 | mA |
| DC Power Dissipation at TL = 75°C | 1.5 | W |
| Thermal Resistance, Junction-to-Lead (RθJL) | 50 | °C/W |
| Operating and Storage Temperature Range | -65 to +150 | °C |
| Package Type | SMA (DO-214AC) | |
| ESD Rating | Class 3 (>16 kV) per Human Body Model |
Key Features
- Standard Zener Breakdown Voltage Range – 3.3 V to 68 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
- SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements
- Pb-Free Packages Available
- Corrosion Resistant with Readily Solderable Leads
- Maximum Case Temperature for Soldering Purposes: 260°C for 10 seconds
- UL94 V–0 Flammability Rating
Applications
- Voltage Regulation
- Waveform Clipping
- MOSFET Gate Protection
- General Purpose Voltage Regulation in Various Electronic Devices
- Automotive Electronics
- Industrial Control Systems
- Consumer Electronics
Q & A
- What is the Zener voltage of the 1SMA5917BT3G?
The Zener voltage of the 1SMA5917BT3G is 4.7 V, with a range of 4.46 V to 4.94 V.
- What is the maximum power dissipation of the 1SMA5917BT3G?
The maximum power dissipation at TL = 75°C is 1.5 W.
- What is the ESD rating of the 1SMA5917BT3G?
The ESD rating is Class 3, greater than 16 kV per Human Body Model.
- What is the operating temperature range of the 1SMA5917BT3G?
The operating and storage temperature range is -65°C to +150°C.
- Is the 1SMA5917BT3G AEC-Q101 qualified?
- What package type does the 1SMA5917BT3G come in?
The 1SMA5917BT3G comes in an SMA (DO-214AC) package.
- Is the 1SMA5917BT3G Pb-free?
- What are some common applications of the 1SMA5917BT3G?
- What is the thermal resistance of the 1SMA5917BT3G?
The thermal resistance, junction-to-lead (RθJL), is 50°C/W.
- How is the polarity indicated on the 1SMA5917BT3G?
The polarity is indicated by a molded polarity notch or cathode band.
