Overview
The 1N4746A-TR is a Zener diode manufactured by Vishay General Semiconductor - Diodes Division. This component is part of the 1N4728A-1N4758A series, which is known for its reliability and versatility in various electronic applications. The 1N4746A-TR is housed in a DO-41 glass package and is designed to operate within a wide temperature range, making it suitable for a broad spectrum of industrial and automotive uses.
Key Specifications
| Attribute | Value |
|---|---|
| Power Dissipation | 1 W |
| Reverse Current-Max | 5 µA @ 13.7 V |
| Voltage Tolerance | ±5% |
| Impedance | 20 Ω |
| Operating Temp Range | -65°C to +200°C |
| Configuration | Single |
| Working Voltage-Nom | 18 V |
| No of Terminals | 2 |
| Package Style | DO-41 (DO-204AL) |
| Mounting Method | Through Hole |
| Packaging Quantity | 3000 per Reel |
| RoHS Compliance | Compliant with Exemption |
| Reach Status | Compliant |
Key Features
- High Power Dissipation: The 1N4746A-TR can handle up to 1 W of power dissipation, making it suitable for applications requiring reliable voltage regulation.
- Wide Operating Temperature Range: The diode operates within a temperature range of -65°C to +200°C, ensuring stability in various environmental conditions.
- Precision Voltage Regulation: With a nominal Zener voltage of 18 V and a tolerance of ±5%, this diode provides accurate voltage regulation.
- Low Reverse Leakage Current: The diode has a maximum reverse leakage current of 5 µA at 13.7 V, which is beneficial for minimizing power loss.
- ROHS and Reach Compliance: The component is compliant with ROHS and Reach regulations, ensuring it meets environmental and safety standards.
Applications
The 1N4746A-TR Zener diode is versatile and can be used in a variety of applications, including:
- Voltage Regulation: It is commonly used in voltage regulator circuits to provide stable output voltages.
- Signal Limiting: The diode can be used to limit signal voltages to prevent damage to sensitive components.
- Overvoltage Protection: It serves as a protective device against overvoltage conditions in electronic circuits.
- Automotive and Industrial Systems: Due to its wide operating temperature range and reliability, it is often used in automotive and industrial applications.
Q & A
- What is the nominal Zener voltage of the 1N4746A-TR?
The nominal Zener voltage of the 1N4746A-TR is 18 V. - What is the maximum power dissipation of the 1N4746A-TR?
The maximum power dissipation is 1 W. - What is the operating temperature range of the 1N4746A-TR?
The operating temperature range is -65°C to +200°C. - What is the package style of the 1N4746A-TR?
The package style is DO-41 (DO-204AL). - Is the 1N4746A-TR ROHS compliant?
Yes, the 1N4746A-TR is compliant with ROHS, but with exemptions. - What is the maximum reverse leakage current of the 1N4746A-TR?
The maximum reverse leakage current is 5 µA at 13.7 V. - How many units are typically packaged in a reel?
Typically, 3000 units are packaged in a reel. - What are some common applications of the 1N4746A-TR?
Common applications include voltage regulation, signal limiting, overvoltage protection, and use in automotive and industrial systems. - Is the 1N4746A-TR suitable for high-temperature environments?
Yes, it is suitable for high-temperature environments due to its operating temperature range of -65°C to +200°C. - What is the tolerance of the Zener voltage for the 1N4746A-TR?
The tolerance of the Zener voltage is ±5%.
