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1N4148W-7-F

100V 300mA fast switching diode, trr=4ns, SOD-123, general-purpose switching

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Manufacturer Part：

1N4148W-7-F

Package：

SOD-123 (2.85 x 1.7 x 1.25 mm)

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Description

Product Overview

The 1N4148W-7-F from Diodes Incorporated is a surface-mount fast switching diode in a SOD-123 package. With 100V reverse voltage, 300mA forward current, and 4ns reverse recovery time, it is the industry-standard SMD replacement for the classic 1N4148 through-hole switching diode, ideal for general-purpose switching applications.

Key Specifications

Peak Reverse Voltage 100 V
Average Forward Current 300 mA
Forward Voltage (Max) 1.25 V @ 150mA
Reverse Current (Max) 1 µA @ 75V
Reverse Recovery Time 4 ns (typ)
Capacitance (Max) 2 pF
Power Dissipation 400 mW
Operating Temperature -65°C to +150°C
Package SOD-123

Features

  • Fast switching speed: trr = 4 ns (typical)
  • Low forward voltage: max 0.715V at 1mA
  • Low capacitance: max 2 pF
  • Surface mount SOD-123 package for automated assembly
  • General-purpose switching applications
  • High conductance
  • AEC-Q101 qualified (SBRS4 prefix)
  • Pb-free and RoHS compliant

Applications

  • General-purpose switching circuits
  • High-speed signal routing
  • Logic gate clamping and protection
  • Reverse polarity protection
  • Automotive electronics

The 1N4148W-7-F from Diodes Incorporated is a silicon epitaxial planar fast switching diode in a surface-mount SOD-123 package. It is the SMD equivalent of the industry-standard 1N4148 through-hole diode, offering 100V reverse voltage, 300mA forward current, and a reverse recovery time of just 4ns. With low capacitance (2pF max) and low forward voltage, it is ideal for general-purpose switching, signal routing, and logic protection in automated assembly applications.

The 1N4148W-7-F operates as a standard PN junction switching diode: (1) Forward Bias: When anode voltage exceeds cathode by approximately 0.6V, the PN junction conducts with low forward resistance. The epitaxial planar construction ensures a low and consistent forward voltage drop. (2) Reverse Bias: When cathode voltage exceeds anode, the junction blocks current flow up to the 100V rating, with maximum leakage of 1µA at 75V. (3) Fast Switching: The small junction area and epitaxial construction minimize charge storage, enabling the 4ns reverse recovery time. The low junction capacitance (2pF max) further supports high-speed switching operation.

Pin Name Type Description
1 Cathode Cathode Negative terminal (marked with band)
2 Anode Anode Positive terminal
  • General-purpose signal switching in digital and analog circuits
  • High-speed logic gate input protection and clamping
  • Reverse polarity protection for low-current signal paths
  • Freewheeling diode for small relay and solenoid coils
  • Automotive signal conditioning and ECU protection
Model Manufacturer VR IF Notes
1N4148WS-7-F Diodes Inc 75V 150mA Smaller SOD-323
BAV16W-7-F Diodes Inc 75V 150mA Higher voltage option
1N4448W-7-F Diodes Inc 75V 150mA Lower VF variant
1N4148W-13-F Diodes Inc 100V 300mA 10ku reel option
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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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