Overview
The 1N4733A-TAP is a 5.1V Zener diode produced by Vishay General Semiconductor - Diodes Division. This component is widely used in various electronic circuits for voltage regulation and protection. The 1N4733A-TAP is part of the 1N47xx series, known for its reliability and performance in regulating voltage levels. It is packaged in a DO-41 (DO-204AL) case, making it suitable for through-hole mounting.
Key Specifications
| Parameter | Value |
|---|---|
| Voltage - Zener (Nom) (Vz) | 5.1 V |
| Voltage - Forward (Vf) (Max) @ If | 1.2 V @ 200 mA |
| Tolerance | ±5% |
| Power - Max | 1.3 W |
| Package / Case | DO-204AL (DO-41), Axial |
| Operating Temperature | 175°C (TJ) |
| Mounting Type | Through Hole |
| Impedance (Max) (Zzt) | 7 Ohms |
| Current - Reverse Leakage @ Vr | 10 µA @ 1 V |
Key Features
The 1N4733A-TAP Zener diode features several key characteristics that make it a reliable choice for various applications:
- Nominal Zener Voltage (Vz): 5.1V, which is the voltage regulated across the diode when a higher reverse potential is applied.
- Power Dissipation (PZ): 1.3W, with a practical limit of 500mW, indicating the maximum power the diode can handle without damage.
- Zener Regulator Current (IZm): 178mA, which is the current at which the Zener voltage is specified.
- Package: DO-41 (DO-204AL), an axial package suitable for through-hole mounting.
- Operating Temperature: Up to 175°C, ensuring the diode can operate reliably in a wide range of temperatures.
- ROHS Compliance: The 1N4733A-TAP is ROHS3 compliant, making it environmentally friendly.
Applications
The 1N4733A-TAP Zener diode is versatile and can be used in several applications:
- Voltage Protection Circuits: To protect electronic circuits from voltage spikes and overvoltages.
- Low Current Voltage Regulators: To regulate voltage levels in low current applications.
- Input Voltage Protection for Microcontrollers or ICs: To safeguard sensitive components from voltage fluctuations.
- Voltage Stabilizing Circuits: To maintain a stable voltage level in various electronic systems.
Q & A
- What is the nominal Zener voltage of the 1N4733A-TAP?
The nominal Zener voltage (Vz) is 5.1V.
- What is the maximum power dissipation of the 1N4733A-TAP?
The maximum power dissipation is 1.3W, with a practical limit of 500mW.
- What is the package type of the 1N4733A-TAP?
The package type is DO-41 (DO-204AL), which is an axial package suitable for through-hole mounting.
- What is the operating temperature range of the 1N4733A-TAP?
The operating temperature range is up to 175°C (TJ).
- How do I select a Zener diode for my application?
You should consider two main parameters: the Zener voltage and the power dissipation. The Zener voltage should match the required regulated voltage, and the power dissipation should be sufficient to handle the expected current.
- What is the purpose of a Zener resistor in a Zener diode circuit?
A Zener resistor is used for current limiting to protect the Zener diode from high current and to ensure the diode operates within its specified limits.
- Is the 1N4733A-TAP ROHS compliant?
Yes, the 1N4733A-TAP is ROHS3 compliant.
- What are some common applications of the 1N4733A-TAP?
Common applications include voltage protection circuits, low current voltage regulators, input voltage protection for microcontrollers or ICs, and voltage stabilizing circuits).
- How do I calculate the Zener series resistor (Rs) for a Zener diode circuit?
The Zener series resistor can be calculated using the formula Rs = (Vs - Vz) / Iz, where Vs is the supply voltage, Vz is the Zener voltage, and Iz is the Zener current).
- What is the reverse leakage current of the 1N4733A-TAP?
The reverse leakage current is 10 µA at 1 V).
