1N4748CPE3/TR8 - Semiconductor Diode
Basic Information Overview
- Category: Semiconductor Diode
- Use: Voltage Regulation
- Characteristics: Zener diode, 22V, 1W, SOD-123 package
- Package: SOD-123
- Essence: Voltage regulation and protection
- Packaging/Quantity: Tape & Reel, 3000 units per reel
Specifications
- Voltage: 22V
- Power Dissipation: 1W
- Package Type: SOD-123
- Operating Temperature Range: -65°C to +150°C
- Zener Impedance: 20Ω
- Reverse Leakage Current: 5μA
Detailed Pin Configuration
The 1N4748CPE3/TR8 has two pins: 1. Anode (A) 2. Cathode (K)
Functional Features
- Precise voltage regulation at 22V
- Low reverse leakage current
- High power dissipation capability
- Compact SOD-123 package for space-constrained applications
Advantages and Disadvantages
Advantages
- Accurate voltage regulation
- Low reverse leakage current
- High power dissipation
- Small form factor
Disadvantages
- Limited voltage range
- Sensitivity to temperature variations
Working Principles
The 1N4748CPE3/TR8 is a Zener diode that operates in the reverse-biased mode. When the voltage across its terminals reaches the specified Zener voltage of 22V, it starts conducting, effectively regulating the voltage and limiting it to 22V.
Detailed Application Field Plans
The 1N4748CPE3/TR8 is commonly used in the following applications: - Voltage regulation in power supplies - Overvoltage protection in electronic circuits - Voltage reference in precision measurement equipment
Detailed and Complete Alternative Models
Some alternative models to the 1N4748CPE3/TR8 include: - 1N4730A: 3.9V, 1W, DO-41 package - 1N4733A: 5.1V, 1W, DO-41 package - 1N4742A: 12V, 1W, DO-41 package - BZX84C22: 22V, 250mW, SOT-23 package
In conclusion, the 1N4748CPE3/TR8 is a semiconductor diode with precise voltage regulation capabilities, making it suitable for various electronic applications requiring stable voltage references and overvoltage protection.
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技術ソリューションにおける 1N4748CPE3/TR8 の適用に関連する 10 件の一般的な質問と回答をリストします。
What is the 1N4748CPE3/TR8?
- The 1N4748CPE3/TR8 is a Zener diode with a voltage rating of 22V and a power rating of 1W.
How does the 1N4748CPE3/TR8 work?
- The 1N4748CPE3/TR8 works by allowing current to flow in the forward direction like a normal diode, but also permits it to flow in the reverse direction when the voltage is above its breakdown voltage.
What are the typical applications of the 1N4748CPE3/TR8?
- The 1N4748CPE3/TR8 is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.
What are the key specifications of the 1N4748CPE3/TR8?
- The key specifications include a voltage rating of 22V, a power rating of 1W, and a tolerance of ±5%.
How do I select the appropriate resistor for use with the 1N4748CPE3/TR8?
- To calculate the resistor value, you can use Ohm's law: R = (Vsupply - Vz) / Iz, where Vsupply is the supply voltage, Vz is the Zener voltage, and Iz is the Zener current.
Can the 1N4748CPE3/TR8 be used for voltage regulation in a power supply?
- Yes, the 1N4748CPE3/TR8 can be used as a voltage regulator to maintain a constant output voltage in a power supply circuit.
What are the precautions to consider when using the 1N4748CPE3/TR8?
- Precautions include ensuring that the maximum power dissipation is not exceeded, avoiding reverse voltage application, and providing adequate heat sinking if necessary.
What is the temperature coefficient of the 1N4748CPE3/TR8?
- The temperature coefficient of the 1N4748CPE3/TR8 is typically around -2mV/°C.
Can the 1N4748CPE3/TR8 be used in automotive applications?
- Yes, the 1N4748CPE3/TR8 can be used in automotive electronics for voltage regulation and protection purposes.
Where can I find detailed application notes for using the 1N4748CPE3/TR8 in technical solutions?
- Detailed application notes can be found in the manufacturer's datasheet, which provides comprehensive information on using the 1N4748CPE3/TR8 in various technical solutions.