1N5303-1 Overview
The 1N5303-1 is a high-voltage Zener diode designed for voltage regulation and protection in electronic circuits. Offering a Zener voltage of approximately 43V, it provides precise voltage clamping to safeguard sensitive components from overvoltage conditions. This diode is particularly suited for industrial and power electronics applications where reliable voltage stabilization is critical. Featuring robust construction and stable performance characteristics, it ensures consistent operation under various temperature and load conditions. Sourced from IC Manufacturer, this device delivers dependable performance in demanding environments, making it a trusted choice for engineers and sourcing specialists alike.
1N5303-1 Technical Specifications
| Parameter | Specification |
|---|---|
| Zener Voltage (Vz) | 43 V (at 20 mA test current) |
| Maximum Zener Current (Izm) | 1 A |
| Power Dissipation (Ptot) | 5 W |
| Test Current (Iz) | 20 mA |
| Maximum Reverse Leakage Current (Ir) | 100 ??A (at VR = 30 V) |
| Operating Temperature Range | -65??C to +200??C |
| Package Type | DO-41 axial leaded |
| Thermal Resistance Junction to Ambient (R??JA) | 50 ??C/W (approximate) |
1N5303-1 Key Features
- High Voltage Regulation: Provides a stable 43V reference voltage, ensuring precise voltage clamping for sensitive electronic circuits.
- Robust Power Handling: Supports up to 5 watts of power dissipation, enabling reliable operation in high-stress environments.
- Wide Operating Temperature Range: Functions reliably from -65??C to +200??C, suitable for harsh industrial conditions.
- Low Leakage Current: Minimizes reverse leakage, enhancing circuit efficiency and reducing power loss.
1N5303-1 Advantages vs Typical Alternatives
This diode offers superior voltage stability and power handling compared with standard Zener diodes in its voltage class. Its low leakage current and wide temperature tolerance make it more reliable in demanding industrial applications. The axial DO-41 package provides easy integration into existing PCB layouts while maintaining thermal performance, offering engineers a robust and efficient solution over typical alternatives.
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Typical Applications
- Voltage regulation in power supplies where precise 43V clamping is required to protect downstream circuitry from voltage spikes.
- Reference voltage source in measurement and control systems ensuring consistent sensor or ADC input ranges.
- Transient voltage suppression in industrial automation equipment to enhance system reliability.
- Protection diode in communication devices to maintain signal integrity against power surges.
1N5303-1 Brand Info
Manufactured under stringent quality control, the 1N5303-1 is part of a family of high-voltage Zener diodes known for their performance and reliability. The product line is supported by IC Manufacturer, a recognized supplier in the semiconductor market. Their commitment to delivering industrial-grade components ensures that this diode meets rigorous standards for stability and durability, making it a preferred choice for engineers sourcing components for critical applications.
FAQ
What is the Zener voltage rating of this diode and why is it important?
The Zener voltage rating is approximately 43 volts, which defines the voltage at which the diode starts conducting in reverse to regulate voltage. This rating is essential for protecting circuits by maintaining a stable voltage level and preventing damage from voltage spikes.
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What power dissipation capability does this Zener diode have?
This device can safely dissipate up to 5 watts of power. This high power rating allows it to handle substantial energy without overheating, making it suitable for demanding industrial applications with higher current or voltage stress.
Can the diode operate in extreme temperature conditions?
Yes, the diode operates effectively over a wide temperature range from -65??C to +200??C, ensuring reliable performance in harsh environments such as industrial, automotive, or outdoor installations.
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What package type does this diode come in, and what are the integration benefits?
The diode is housed in a DO-41 axial leaded package. This package type simplifies PCB mounting and soldering while providing good thermal dissipation. Its standard size allows compatibility with common circuit board layouts.
How does the leakage current affect circuit performance?
The maximum reverse leakage current is relatively low, around 100 ??A at 30 volts. Low leakage current reduces unwanted power loss and improves overall circuit efficiency, which is critical for precision voltage regulation and low-noise applications.
