1N4148WS T4 SMD Switching Diode SOD-123

1N4148WS T4 is a high-speed switching diode in a compact SOD-123 surface-mount package. Designed for fast switching and low capacitance, it is widely used in digital, signal processing, and high-speed switching circuits. Its small footprint makes it ideal for densely packed PCBs and portable electronics where space is critical.

Key Features of 1N4148WS T4 SMD Switching Diode:

• Fast Switching Speed: Typical reverse recovery time of 4ns.
• Low Forward Voltage Drop: Reduces power loss and heat generation.
• Compact SOD-123 Package: Saves PCB space in surface mount designs.
• High Reverse Voltage: Withstands up to 100V reverse voltage.
• Low Capacitance: Suitable for high-frequency applications.

Technical Specifications of 1N4148WS T4 SMD Switching Diode:

• Peak Reverse Voltage (V_R): 100V
• Average Forward Current (I_F(AV)): 150mA
• Peak Forward Surge Current (I_FSM): 2A (1µs pulse)
• Forward Voltage Drop (V_F): 1.0V max at 100mA
• Reverse Recovery Time (t_rr): 4ns typical
• Junction Capacitance: 4pF typical
• Operating Temperature Range: -65°C to +150°C

Mechanical Specifications of 1N4148WS T4 SMD Switching Diode:

• Package Type: SOD-123
• Polarity: Cathode marked with a band
• Mounting Type: Surface Mount Device (SMD)
• Body Material: Molded plastic case with tin-plated leads

Dimensions:

• Body Length: 2.7mm
• Body Width: 1.6mm
• Body Height: 1.1mm
• Lead Pitch: 3.5mm

Mounting Options:

• Reflow Soldering: Compatible with standard SMT reflow processes.
• Hand Soldering: Also possible for low-volume or repair work.

Schematic Diagram, Connection, Wiring and Pinout of 1N4148WS:

• Connection: Anode to input signal, Cathode to output or load.
• Wiring: Ensure correct polarity to avoid damage.
• Pinout: Two-terminal device: Anode and Cathode clearly marked on PCB.

Datasheet of 1N4148WS T4 SMD Switching Diode:

• Download 1N4148WS Datasheet (PDF)

Applications of 1N4148WS T4 SMD Switching Diode:

• Signal Switching: Used in logic and data routing circuits.
• Clamping and Protection: Protects circuits from voltage spikes.
• Fast Recovery Circuits: Suitable for RF and high-speed logic designs.
• Voltage Regulation: Works with Zener diodes and transistors for regulation.
• General Purpose: Ideal for switching and low current rectification tasks.

Equivalent of 1N4148WS T4 SMD Switching Diode:

• LL4148: Glass package version with similar electrical specs.
• 1N4448: Higher reverse voltage rating alternative.
• BAS16: SMD alternative for fast switching applications.
• 1N4148 DO-35: Through-hole version of 1N4148 series.

Package Includes:

• 1 x 1N4148WS T4 SMD Switching Diode (SOD-123 Package)