Overview
The 1N4733A is a 5.1V Zener diode manufactured by Onsemi. It is part of the 1N4728A to 1N4758A series, which are general-purpose Zener diodes used for voltage regulation and protection circuits. The 1N4733A is known for its reliability and stability in a wide range of applications, including electronic circuits that require voltage stabilization and protection against voltage spikes.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Nominal Zener Voltage (VZ) | 5.1 | V |
| Tolerance | ±5% | |
| Maximum Power Dissipation | 1 W | |
| Maximum Zener Impedance (ZZT) | 7 Ω | |
| Reverse Leakage Current (IR) | 10 µA @ 1 V | |
| Forward Voltage (VF) | 1.2 V @ 200 mA | |
| Operating Temperature Range | -55°C to 175°C | |
| Package Type | DO-41 (SOD66) | |
| Mounting Type | Through Hole |
Key Features
- Nominal Zener Voltage: 5.1V with a tolerance of ±5%.
- Power Dissipation: Maximum of 1 W, ensuring it can handle moderate power requirements.
- Low Zener Impedance: Maximum Zener impedance of 7 Ω, which helps in maintaining stable voltage regulation.
- Low Reverse Leakage Current: 10 µA at 1 V, minimizing unwanted current flow.
- Hermetically Sealed Glass Package: DO-41 (SOD66) package provides robust protection against environmental factors.
- Broad Operating Temperature Range: From -55°C to 175°C, making it suitable for various environmental conditions.
Applications
- Voltage Protection Circuits: Used to protect electronic circuits from voltage spikes and overvoltages.
- Low Current Voltage Regulators: Can be used as simple voltage regulators in low current applications.
- Input Voltage Protection for Microcontrollers and ICs: Provides protection against voltage fluctuations that could damage sensitive components.
- Voltage Stabilizing Circuits: Helps in maintaining a stable voltage level in various electronic circuits.
Q & A
- What is the nominal Zener voltage of the 1N4733A?
The nominal Zener voltage of the 1N4733A is 5.1V. - What is the maximum power dissipation of the 1N4733A?
The maximum power dissipation is 1 W. - What is the tolerance of the Zener voltage for the 1N4733A?
The tolerance is ±5%. - What is the maximum Zener impedance of the 1N4733A?
The maximum Zener impedance is 7 Ω. - What is the reverse leakage current of the 1N4733A?
The reverse leakage current is 10 µA at 1 V. - What is the forward voltage drop of the 1N4733A?
The forward voltage drop is 1.2 V at 200 mA. - What is the operating temperature range of the 1N4733A?
The operating temperature range is from -55°C to 175°C. - What type of package does the 1N4733A come in?
The 1N4733A comes in a DO-41 (SOD66) package. - How is the 1N4733A typically used in circuits?
The 1N4733A is typically used in voltage protection circuits, as a low current voltage regulator, and for input voltage protection for microcontrollers and ICs. - Why is it important to use a Zener resistor with the 1N4733A?
A Zener resistor is important to limit the current flowing through the diode, preventing it from being damaged by high currents.
