Overview
The 1N4733A BK PBFREE is a silicon Zener diode produced by Central Semiconductor Corp. This component is part of the 1N47xx series and is designed for various applications requiring voltage regulation and protection. The 1N4733A is characterized by its nominal Zener voltage of 5.1V and is widely used in commercial, industrial, and electronic circuits.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Nominal Zener Voltage (VZ) | 5.1 | V |
| Power Dissipation (PZ) | 1.3W (practically 500mW) | mW |
| Zener Regulator Current (IZm) | 178 | mA |
| Package | DO-41 | |
| Operating and Storage Junction Temperature | -65 to +150 | °C |
| Maximum Zener Impedance (ZZT @ IZT) | 7.0 | Ω |
| Maximum Reverse Current (IR @ VR) | 10 | μA |
| Maximum Zener Current (IZM) | 890 | mA |
| Temperature Coefficient (ΘVZ @ IZT) | -0.01 to +0.04 | %/°C |
Key Features
- Nominal Zener Voltage: 5.1V, providing stable voltage regulation.
- Power Dissipation: 1.3W (practically 500mW), allowing for moderate current handling.
- Zener Regulator Current: 178mA, suitable for low to moderate current applications.
- Package: DO-41, a standard axial lead package for through-hole mounting.
- Temperature Stability: Operating and storage junction temperature range of -65 to +150°C.
Applications
- Voltage Protection Circuits: Used to protect circuits from overvoltage conditions.
- Low Current Voltage Regulator: Acts as a simple voltage regulator in low current applications.
- Input Voltage Protection for Microcontrollers or ICs: Protects sensitive electronic components from voltage spikes.
- 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 diode?
The nominal Zener voltage of the 1N4733A diode is 5.1V.
- What is the maximum power dissipation of the 1N4733A diode?
The maximum power dissipation of the 1N4733A diode is 1.3W, but practically it is limited to 500mW.
- What is the package type of the 1N4733A diode?
The 1N4733A diode comes in a DO-41 package.
- What are the typical applications of the 1N4733A diode?
The 1N4733A diode is typically used in voltage protection circuits, as a low current voltage regulator, for input voltage protection of microcontrollers or ICs, and in voltage stabilizing circuits.
- How do you calculate the Zener series resistor for the 1N4733A diode?
The Zener series resistor (Rs) 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 maximum Zener current (IZM) of the 1N4733A diode?
The maximum Zener current (IZM) of the 1N4733A diode is 890mA.
- What is the temperature coefficient of the 1N4733A diode?
The temperature coefficient (ΘVZ) of the 1N4733A diode is between -0.01 to +0.04 %/°C.
- Why is it important to use a Zener resistor with the 1N4733A diode?
A Zener resistor is crucial to limit the current flowing through the diode, preventing it from being damaged by high currents.
- What is the operating temperature range of the 1N4733A diode?
The operating and storage junction temperature range of the 1N4733A diode is -65 to +150°C.
- Is the 1N4733A diode RoHS compliant?
Yes, the 1N4733A diode from Central Semiconductor Corp is RoHS compliant.
