1N4148 Zener Diode (100V 0.2A)

Overview

The 1N4148 Zener Diode (100V 0.2A) is a precision protection and switching diode engineered for fast response and reliable voltage regulation in low-power electronic designs. With a maximum reverse voltage rating of 100V and a forward current rating of 200mA, this diode is optimized for clamping, transient suppression, and high-frequency signal applications.

Why choose the 1N4148 Zener Diode

This diode combines fast switching performance with compact packaging and predictable reverse breakdown behavior, making it suitable for both digital and analog circuits where space and speed matter. The robust glass DO-35 package provides stable long-term performance and easy through-hole PCB mounting.

Key Features

• Type: Zener diode for voltage regulation and clamping
• Maximum reverse voltage: 100V
• Forward/current handling: 200mA (0.2A)
• Fast switching speed (nanoseconds range) for high-frequency use
• Glass DO-35 package for durability and easy PCB insertion
• Reliable over-voltage and transient protection for sensitive components

Electrical Specifications

• Maximum Reverse Voltage (Vr): 100V
• Forward Current (If): 200mA (0.2A)
• Typical Switching Time: nanoseconds range (high-speed switching)
• Package: DO-35 glass, through-hole

Typical Applications

• Voltage regulation and reference circuits
• Signal processing, waveform shaping, and high-frequency switching
• Over-voltage and transient suppression in power lines and inputs
• Digital logic protection and interfacing circuits
• Educational electronics and prototyping projects

Package and Mounting

The glass DO-35 package offers a compact footprint and straightforward through-hole mounting for reliable soldering and mechanical stability. Its durable glass body provides good thermal and environmental resilience for everyday electronics use.

Best Practices and Handling

• Verify polarity before soldering; incorrect orientation can damage circuits.
• Use appropriate current limiting when testing or prototyping to avoid exceeding the 200mA rating.
• Consider adding series resistors or transient suppressors for heavy transient environments.

Ordering and Notes

This 1N4148 Zener Diode is commonly stocked for electronics labs, repair shops, and production lines. Note: Images are for illustration purposes only. Check actual product specifications and datasheets to confirm detailed electrical characteristics for your specific application.