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Category Discrete Semiconductor Products - Diodes - Zener - Single Zener Diodes
Mfr Microchip Technology
Package Bulk
Product Status Active
Voltage - Zener (Nom) (Vz) 39 V
Tolerance ±5%
Power - Max 1.25 W
Impedance (Max) (Zzt) 45 Ohms
Current - Reverse Leakage @ Vr 1 µA @ 29.7 V
Voltage - Forward (Vf) (Max) @ If 1.2 V @ 200 mA
Temperature Range - Operating -65°C ~ 175°C (TJ)
Mounting Type Through Hole
Package / Case DO-204AL, DO-41, Axial
Supplier Device Package DO-41
Standard Package 1 pcs
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8541.10.0050
Win Source Part Number 539381-1N5939B
Ultra Librarian 3D Model Ultra Librarian 1N5939B CAD Model

Description

The 1N5939B from Microchip Technology is a robust Zener diode designed for voltage regulation and voltage reference applications. This Zener diode offers a nominal Zener voltage of 18 volts, making it suitable for a wide range of electronic circuits that require a stable reference voltage.

Key Features

  • Zener Voltage: The 1N5939B provides a precise Zener voltage of 18V, which is ideal for voltage regulation in power supplies and other voltage-sensitive applications.
  • Power Dissipation: With a power dissipation rating of 1.5 watts, this Zener diode can handle significant power levels, making it reliable for continuous operation in various conditions.
  • Package: Encased in a DO-41 glass package, the 1N5939B ensures robustness and thermal stability, offering a compact footprint for PCB designs.
  • High Surge Capability: The device is capable of withstanding surge currents, providing protection against voltage spikes and enhancing circuit reliability.
  • Wide Operating Temperature Range: The 1N5939B operates effectively within a temperature range of -65°C to +200°C, ensuring consistent performance across diverse environmental conditions.
  • Tolerance: This Zener diode has a standard tolerance of ±5%, allowing for precise voltage regulation in a variety of applications.

Applications

The 1N5939B is versatile and can be used in various electronic circuits, including:

  • Voltage regulation modules
  • Overvoltage protection circuits
  • Switching power supplies
  • Consumer electronics
  • Industrial control systems

Quality and Reliability

Microchip Technology is known for its commitment to quality, and the 1N5939B Zener diode is no exception. It is manufactured to high standards, ensuring reliability and performance consistency. This component is a suitable choice for designers who require a dependable voltage reference in their electronic designs.

For detailed specifications, technical data, and application notes, customers are encouraged to refer to the official Microchip Technology datasheets and product documentation.

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