1N4148WT

The 1N4148WT is a widely used small-signal diode, known for its fast switching speed and reliability in various electronic applications. Manufactured by ZRE, this diode is part of the 1N4148 family, which is renowned for its versatility in both commercial and industrial circuits.

Key Features:

1. Package Type: The 1N4148WT typically comes in a surface-mount package, specifically the SOD-123 or similar, which allows for efficient space utilization on printed circuit boards (PCBs). The compact size makes it suitable for high-density applications.

2. Electrical Characteristics:

   • Maximum Reverse Voltage (VR): The diode can withstand a maximum reverse voltage of around 100 volts, making it suitable for various applications where reverse polarity protection is necessary.
   • Forward Current (IF): It can handle a forward current of up to 1 ampere, allowing it to be used in circuits that require moderate current handling.
   • Forward Voltage Drop (VF): The forward voltage drop is typically around 0.7 volts at a forward current of 1 mA, which is relatively low, ensuring efficient operation with minimal power loss.

3. Switching Speed: The 1N4148WT is characterized by its fast switching capabilities, with a reverse recovery time of approximately 4 nanoseconds. This makes it ideal for high-speed switching applications, such as in digital circuits and signal processing.

4. Temperature Range: The diode operates effectively over a wide temperature range, typically from -55°C to +150°C, allowing it to be used in various environmental conditions without performance degradation.

5. Applications: The 1N4148WT is commonly used in:

   • Rectification in power supplies
   • Signal detection and clamping
   • Protection circuits against voltage spikes
   • Switching applications in digital logic circuits

6. Construction: The diode is constructed using silicon material, which contributes to its reliability and performance. The encapsulation is designed to protect the internal components from environmental factors while allowing for efficient heat dissipation.

Conclusion:

The 1N4148WT from ZRE is a robust and efficient small-signal diode that is well-suited for a variety of electronic applications. Its fast switching speed, compact size, and reliable performance make it a popular choice among engineers and designers in the electronics industry. Whether used in consumer electronics, automotive applications, or industrial equipment, the 1N4148WT continues to be a staple component in modern electronic design.