Overview
The BZX79C3V9-T50A is a 500 mW Zener diode produced by onsemi, part of the BZX79 series. This diode is designed with silicon-oxide passivated junctions, offering excellent operating characteristics and reliability. It is packaged in a hermetically sealed glass DO-35 case, providing protection against various environmental conditions. The device is suitable for a wide range of applications, including voltage regulation, waveform clipping, and MOSFET gate protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage (VZ) | 3.7 - 4.1 | V |
| Power Dissipation (PD) | 500 mW | mW |
| Derate above 75°C | 4.0 mW/°C | mW/°C |
| Operating and Storage Temperature Range (TJ, TSTG) | -65 to +200 °C | °C |
| Maximum Reverse Leakage Current (IR) | 10 μA | μA |
| Forward Voltage (VF) | 1.2 V Max. @ IF = 200 mA | V |
| Package Type | DO-35, Axial Lead | - |
| ESD Rating | Class 3 (>16 KV) per Human Body Model | - |
Key Features
- Hermetically sealed glass package (DO-35) for environmental protection.
- Double slug type construction and metallurgically bonded for reliability.
- Corrosion-resistant surfaces with readily solderable leads.
- Cathode indicated by color band.
- No ESD protection.
- Impedance of 90 Ω.
- Maximum operating temperature of 200 °C.
Applications
- Voltage regulation: Provides stable voltage reference points in circuits.
- Waveform clipping: Limits voltage peaks to protect sensitive components.
- MOSFET gate protection: Protects MOSFET gates from overvoltage conditions.
- General usage: Suitable for various end products requiring voltage stabilization.
Q & A
- What is the Zener voltage range of the BZX79C3V9-T50A?
The Zener voltage range is 3.7 V to 4.1 V.
- What is the maximum power dissipation of the BZX79C3V9-T50A?
The maximum power dissipation is 500 mW.
- What is the operating and storage temperature range of the BZX79C3V9-T50A?
The operating and storage temperature range is -65 °C to +200 °C.
- What is the maximum reverse leakage current of the BZX79C3V9-T50A?
The maximum reverse leakage current is 10 μA.
- What type of package does the BZX79C3V9-T50A come in?
The device is packaged in a hermetically sealed glass DO-35 case with axial leads.
- Does the BZX79C3V9-T50A have ESD protection?
No, the BZX79C3V9-T50A does not have built-in ESD protection.
- What is the impedance of the BZX79C3V9-T50A?
The impedance is 90 Ω.
- What are some common applications of the BZX79C3V9-T50A?
Common applications include voltage regulation, waveform clipping, and MOSFET gate protection.
- How is the cathode indicated on the BZX79C3V9-T50A?
The cathode is indicated by a color band.
- What is the maximum lead temperature for soldering purposes?
The maximum lead temperature for soldering purposes is 230 °C.
