1N4148 diode, characteristics - can use 1n4148w, 1n4448 diode instead

1N4148 diode, characteristics - can use 1n4148w, 1n4448 diode instead

The 1N4148 diode is a common fast-switching diode used in a variety of electronic devices.

Basic parameters of 1N4148 diode:
Maximum reverse voltage: 100V
Maximum forward current: 200mA
Peak Forward Current: 450mA
Forward Voltage (at 1.0mA): 1V
Reverse current (at 75V): 5nA
Maximum working temperature: 150°C
Maximum storage temperature: 175°C
Switching time: 4ns

1N4148 diodes are common in applications including:

Electronic Switching and Signal Processing: Due to its fast switching time, it is very useful when processing high frequency signals.

Voltage Limiting and Overvoltage Protection: Its high reverse voltage and low forward current make it suitable for these applications.
Power Protection Circuit: Due to its resistance to high voltages, it is commonly used in power protection circuits to protect against

transient voltage spikes in the power supply.

General Electronics: This includes all types of electronic equipment such as computers, cell phones, audio equipment, etc.
The 1N4148 transistor is a common small signal diode.
Mainly used in applications such as signal and data processing, especially when fast switching is required.
Note that while a 1N4148 transistor is a common diode, different diode types may be required depending on specific application requirements

1N4148 Datasheet:

500mW High Speed

Switching Diode

100 Volts

Use instead of 1N4148 diode model:
1N914, 1N914B, IN914A, 1N916A, 1N916, 1N916B, 1N4148wt, 1N4448W, 1n4148w-7-f, 1n4148w, 1N4448, and 1N4148WS.And so on.

These models are sold at https://www.jinftry.com/, please consult for the relevant quantity and price.

1n4148w - is a general purpose fast switching diode used in many electronic devices and circuits. There are two main modes of operation: forward bias and reverse bias.

Forward Bias: When the voltage at the anode of the 1n4148w diode is higher than the voltage at the cathode, the diode is in forward bias.

In this case, the conduction threshold (also known as the turn-on voltage) of the diode is usually in the range of 0.6-0.7 volts.

When the voltage exceeds this threshold, the diode begins to conduct and current can flow from the anode to the cathode.

Reverse Bias: When the cathode voltage of 1n4148w diode is higher than the anode voltage, the diode is in reverse bias state.

In this state, the diode does not conduct electricity, which means that current cannot flow from the anode to the cathode.

However, when the reverse voltage reaches the diode's reverse breakdown voltage (about 100V for 1N4148W),

the diode will start conducting and current can flow from the anode to the cathode.

1N914 - This is a diode very similar to the 1N4148 with almost identical performance parameters.

1N4448 - This is also a small signal diode, the main difference from the 1N4148 diode is that it has a shorter reverse recovery time,

so it may be more ideal in applications requiring higher speed.

BAS16 - This is a surface mount diode that can be used as a replacement for the 1N4148, especially if miniaturization or high density integration is required.

1N4148WT is a common silicon diode, which is widely used in practical circuits. Common uses include switching, voltage regulation, signal processing, etc.

The fast switching characteristics of 1N4148WT make it especially suitable for high-frequency circuit design, very similar to 1N4148 diode,

and the performance parameters are almost the same.

1N4148W-7-F is one of the part numbers distributed by Jinftry, you can learn about its Specifications/Configurations, Package/Case, Datasheet and other information here.

Fast Switching Speed
  Low Forward Voltage: Maximum of 0.715V at 1mA
  Fast Reverse Recovery: Maximum of 4ns
  Low Capacitance: Maximum of 2pF
  Surface Mount Package Ideally Suited for Automated Insertion
  For General Purpose Switching Applications
  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  Halogen and Antimony Free. “Green” Device (Note 3)
  Qualified to AEC-Q101 Standards for High Reliability
PPAP Capable (Note 4)