Overview
The 1N4733A is a 5.1V Zener diode manufactured by onsemi. It is part of the 1N4728A to 1N4758A series of Zener diodes, which are widely used in voltage regulation and protection circuits. This diode is known for its reliability and is often used in applications requiring stable voltage regulation and protection against voltage spikes.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Nominal Zener Voltage (VZ) | 5.1 | V |
| Power Dissipation (PZ) | 1.3W (practically 500mW) | W |
| Zener Regulator Current (IZm) | 178mA | mA |
| Reverse Leakage Current | 10uA | uA |
| Surge Current | 890mA | mA |
| Operating and Storage Temperature Range | -65 to +200 | °C |
| Package | DO-41 |
Key Features
- Stable Voltage Regulation: The 1N4733A provides a stable 5.1V Zener voltage, making it ideal for voltage regulation circuits.
- High Power Dissipation: With a power dissipation of 1.3W (practically 500mW), this diode can handle moderate current levels.
- Low Reverse Leakage Current: The diode has a low reverse leakage current of 10uA, which minimizes unnecessary current draw.
- High Surge Current Capability: It can withstand surge currents up to 890mA, providing protection against transient voltage spikes.
- Wide Operating Temperature Range: The diode operates over a temperature range of -65°C to +200°C, making it suitable for various environmental conditions.
- DO-41 Package: The diode is packaged in a DO-41 glass case, which is compact and suitable for a variety of applications.
Applications
- Voltage Protection Circuits: Used to protect electronic circuits from voltage spikes and overvoltages.
- Low Current Voltage Regulators: Can be used as a simple voltage regulator in low current applications.
- Input Voltage Protection for Microcontrollers and ICs: Provides protection for sensitive electronic components from input voltage fluctuations.
- Voltage Stabilizing Circuits: Helps in stabilizing voltage levels in various electronic circuits.
Q & A
- What is the nominal Zener voltage of the 1N4733A diode?
The nominal Zener voltage of the 1N4733A diode is 5.1V.
- What is the power dissipation of the 1N4733A diode?
The power dissipation of the 1N4733A diode is 1.3W, but practically it is limited to 500mW.
- What is the maximum Zener regulator current for the 1N4733A diode?
The maximum Zener regulator current for the 1N4733A diode is 178mA.
- What is the reverse leakage current of the 1N4733A diode?
The reverse leakage current of the 1N4733A diode is 10uA.
- What is the surge current capability of the 1N4733A diode?
The surge current capability of the 1N4733A diode is up to 890mA.
- What is the operating temperature range of the 1N4733A diode?
The operating and storage temperature range of the 1N4733A diode is -65°C to +200°C.
- In what package is the 1N4733A diode available?
The 1N4733A diode is available in a DO-41 glass package.
- How is the 1N4733A diode typically used in circuits?
The 1N4733A diode is typically used along with a Zener resistor for current limiting and to protect the diode from high current.
- What are some common applications of the 1N4733A diode?
The 1N4733A diode is commonly used in voltage protection circuits, low current voltage regulators, input voltage protection for microcontrollers and ICs, and voltage stabilizing circuits.
- Is the 1N4733A diode available in high reliability versions?
Yes, the 1N4733A diode is available as a high reliability device as per MIL-PRF-19500, indicated by the -HR suffix.
