1N4148WS SOD323 (0805) High-Speed Switching Diode – SMD T4

Product Description:

The 1N4148 / 1N4148WS SMD Switching Diode (T4 Marking) in the SOD323 (0805) package is a high-speed, low-leakage signal diode widely used in high-frequency and precision electronic circuits. Known for its fast switching time, low junction capacitance, and stable electrical performance, the 1N4148WS is a trusted replacement for the classic 1N4148 in compact SMD designs.

With its small SOD323 (0805) footprint, this diode is ideal for modern surface-mount assemblies, offering excellent thermal stability and reliability. It is commonly used in signal processing, protection circuits, high-speed switching, clipping circuits, digital logic, and general-purpose applications across consumer and industrial electronics.

Key Specifications:

• Diode Type: High-Speed Switching Diode

• Models: 1N4148 / 1N4148WS

• Package: SOD323 (0805) – SMD

• Marking Code: T4

• Forward Current (IF): 200mA

• Peak Forward Current: Up to 500mA

• Reverse Voltage (VR): 75–100V

• Reverse Recovery Time: Extremely fast (~4ns typical)

• Leakage Current: Very low

• Capacitance: Low for high-frequency operation

• Mounting Type: Surface Mount (SMD)

Features:

• Ultra-fast switching speed

• Low capacitance for high-frequency performance

• Compact SOD323 (0805) footprint for dense PCB layouts

• Reliable and stable for precision circuits

• Low leakage and low forward voltage drop

• Ideal replacement for through-hole 1N4148

Applications:

• High-speed digital circuits

• RF and communication circuits

• Signal routing and level shifting

• Voltage protection and clipping

• Analog & precision electronics

• General-purpose switching

Package Includes:

1 × 1N4148WS SOD323 (0805) High-Speed Switching Diode

Note: Image is for representation purpose only.