1N4148WS-E3-08: Small Signal Fast Switching Diode, SOD-323, 100V, 150mA
Vishay

The 1N4148WS-E3-08 is a small signal fast switching diode manufactured by Vishay, encapsulated in a compact SOD-323 package. This component is designed to offer fast switching capabilities, making it suitable for high-speed switching applications. The diode is built on silicon epitaxial planar technology which ensures reliable performance and consistency in its operation.

Its fast switching characteristic is supported by a reverse recovery time of just 4 ns, which is crucial for applications requiring rapid switching between states. The diode also features a low forward voltage drop of 1V at 10mA, increasing to 1.2V at 100mA, ensuring efficient operation with minimal power loss. The 1N4148WS-E3-08 is capable of handling a reverse voltage of up to 75V and a repetitive peak reverse voltage of 100V, making it versatile for a range of applications.

Key Specifications and Features

  • Package: SOD-323
  • Reverse Voltage (VR): 75V
  • Repetitive Peak Reverse Voltage (VRRM): 100V
  • Average Rectified Current (IF(AV)): 150mA
  • Surge Forward Current (IFSM): 350mA
  • Power Dissipation (Ptot): 200mW
  • Thermal Resistance Junction to Ambient (RthJA): 650 K/W
  • Junction Temperature (Tj): 150°C
  • Storage Temperature Range (Tstg): -65 to +150°C
  • Operating Temperature Range (Top): -55 to +150°C
  • Forward Voltage Drop (VF): 1V at 10mA, 1.2V at 100mA
  • Leakage Current (IR): 25nA at VR=20V, 100μA at VR=100V
  • Diode Capacitance (CD): 4pF
  • Reverse Recovery Time (trr): 4ns

1N4148WS-E3-08 Datasheet

1N4148WS-E3-08 datasheet (PDF)

1N4148WS-E3-08 Substitutes
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Applications

  • High-speed switching circuits
  • Voltage clamping
  • Protection circuits
  • Signal processing

Category

Diode

General information

Small signal diodes, like the 1N4148WS-E3-08, are fundamental components in electronic circuits, primarily used for their rectifying properties. These diodes are designed to manage small signals in a wide range of electronic applications, including signal processing, voltage clamping, and protection circuits. Their fast switching capabilities make them ideal for high-frequency and high-speed operations.

When selecting a small signal diode, engineers consider several key parameters, including the reverse voltage, forward current, power dissipation, and switching speed. The package type also plays a significant role, especially in compact or high-density circuit designs. The 1N4148WS-E3-08, with its SOD-323 package, offers a balance between compactness and performance, making it suitable for a variety of applications.

The efficiency of a diode is significantly influenced by its forward voltage drop and reverse recovery time. A lower forward voltage drop contributes to reduced power loss, while a shorter reverse recovery time enhances the diode's ability to switch between states rapidly. These characteristics are crucial in applications requiring efficient and fast switching.

In addition to technical specifications, the application environment, including temperature range and thermal resistance, must be considered. The 1N4148WS-E3-08's wide operating temperature range and thermal resistance make it adaptable to various operating conditions, ensuring reliable performance across a broad spectrum of applications.

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