1N4748P/TR8 - Diode Encyclopedia Entry
Introduction
The 1N4748P/TR8 is a diode belonging to the semiconductor category. This entry provides an overview of its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.
Basic Information Overview
- Category: Semiconductor
- Use: Voltage regulation, rectification
- Characteristics: Zener diode, low reverse leakage, high reliability
- Package: DO-41
- Essence: Voltage regulation and stabilization
- Packaging/Quantity: Typically available in reels or tubes containing multiple units
Specifications
- Voltage: 22V
- Power Dissipation: 1.0W
- Operating Temperature: -65°C to +200°C
- Zener Impedance: 5Ω
- Maximum Reverse Leakage Current: 5μA
Detailed Pin Configuration
The 1N4748P/TR8 follows the standard DO-41 package pin configuration: - Pin 1: Anode - Pin 2: Cathode
Functional Features
- Voltage Regulation: Maintains a constant voltage across its terminals, useful for stabilizing power supplies.
- Reverse Voltage Protection: Prevents damage to circuits by allowing current flow only in one direction.
- Temperature Stability: Exhibits stable performance across a wide temperature range.
Advantages and Disadvantages
Advantages
- Reliable voltage regulation
- Low reverse leakage
- Wide operating temperature range
Disadvantages
- Limited power dissipation capability
- Sensitive to overvoltage conditions
Working Principles
The 1N4748P/TR8 operates based on the Zener effect, where it maintains a nearly constant voltage drop across its terminals when reverse-biased at the specified voltage.
Detailed Application Field Plans
The 1N4748P/TR8 finds applications in various fields, including: - Power supply stabilization - Voltage reference circuits - Overvoltage protection
Detailed and Complete Alternative Models
Some alternative models to the 1N4748P/TR8 include: - 1N4733A: 5.1V Zener diode - 1N4742A: 12V Zener diode - BZX55C22: 22V Zener diode
In conclusion, the 1N4748P/TR8 is a reliable Zener diode with specific voltage regulation capabilities, suitable for various electronic applications.
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What is the 1N4748P/TR8?
- The 1N4748P/TR8 is a Zener diode with a voltage rating of 22V and a power rating of 1W.
What are the typical applications of the 1N4748P/TR8?
- It is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.
What is the maximum current that can flow through the 1N4748P/TR8?
- The maximum current for reliable operation is typically around 40-50 mA.
How does the 1N4748P/TR8 provide voltage regulation?
- The Zener diode conducts in the reverse-biased direction when the voltage across it reaches its breakdown voltage, effectively regulating the voltage.
Can the 1N4748P/TR8 be used for overvoltage protection?
- Yes, it can be used to shunt excess voltage away from sensitive components in a circuit.
What are the key specifications to consider when using the 1N4748P/TR8 in a design?
- Key specifications include the breakdown voltage, power dissipation, and maximum current.
Are there any temperature considerations when using the 1N4748P/TR8?
- Yes, the operating and storage temperatures should be within the specified range to ensure proper performance.
Can multiple 1N4748P/TR8 diodes be connected in series or parallel?
- Yes, they can be connected in series to increase the breakdown voltage or in parallel to share the current load.
What are the potential failure modes of the 1N4748P/TR8?
- Common failure modes include exceeding the maximum power dissipation, overcurrent conditions, and thermal stress.
Where can I find detailed application notes for using the 1N4748P/TR8 in technical solutions?
- Detailed application notes can be found in the datasheet provided by the manufacturer or in technical literature related to Zener diode applications.