1N4449 Allicdata Electronics
Allicdata Part #:

1N4449-ND

Manufacturer Part#:

1N4449

Price: $ 0.74
Product Category:

Discrete Semiconductor Products

Manufacturer: Microsemi Corporation
Short Description: DIODE GEN PURP 75V 200MA DO35
More Detail: Diode Standard 75V 200mA Through Hole DO-35
DataSheet: 1N4449 datasheet1N4449 Datasheet/PDF
Quantity: 1000
794 +: $ 0.65845
Stock 1000Can Ship Immediately
$ 0.74
Specifications
Series: --
Packaging: Bulk 
Part Status: Discontinued at Digi-Key
Diode Type: Standard
Voltage - DC Reverse (Vr) (Max): 75V
Current - Average Rectified (Io): 200mA
Voltage - Forward (Vf) (Max) @ If: 1V @ 30mA
Speed: Small Signal =
Reverse Recovery Time (trr): 4ns
Current - Reverse Leakage @ Vr: 25nA @ 20V
Capacitance @ Vr, F: --
Mounting Type: Through Hole
Package / Case: DO-204AH, DO-35, Axial
Supplier Device Package: DO-35
Operating Temperature - Junction: -65°C ~ 150°C
Description

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The 1N4449 is a high efficiency rectifier diode suitable for high current AC and DC switching applications. The device is manufactured using silicon exhibition technology and provides for an ideal alternative in applications where traditional diodes are not suitable. It has an excellent recovery time and low forward voltage drop (Vf) which makes it ideal for switching applications requiring high current handling.

The 1N4449 diode is a three-terminal rectifier diode that is designed for high current DC switching applications. It is characterized by a low Vf (forward voltage drop), a fast reverse recovery time, and a high current handling capacity. Its low Vf allows it to withstand high forward voltages while maintaining a low drop in voltage across its junction. In terms of recovery time, the diode recovers quickly from its reverse state when the reverse voltage is removed.

The working principle of the 1N4449 diode is based on the P-N junction formation. The diode is composed of an n-type semiconductor material and a p-type semiconductor material. When a positive voltage is applied to the diode terminal, majority current carriers, or electrons, begin to flow from the n-type material to the p-type material. At the same time, minority current carriers, or holes, flow in the opposite direction. This causes a potential difference across the junction, which in turn results in a current flow across the P-N junction, and this is the principle of the diode working.

The 1N4449 diode has many applications in the electronics industry. Due to its low Vf and high current capability, it is ideally suited for use in high current switching applications. It is also popularly used in DC regulators, converters, transistors, amplifiers, etc. It can also be used in applications involving relay switches and DC power supplies. In addition, this diode is very useful in telecommunications equipment and industrial control equipment.

In summary, the 1N4449 diode is a high efficiency rectifier diode suitable for high current switching applications that features an excellent reverse recovery time and low forward voltage drop. Its basis of operation lies in the formation of a P-N junction. The diode is widely used in electronics applications such as DC regulators, amplifiers, transistors, DC power supplies, and telecommunications equipment.

The specific data is subject to PDF, and the above content is for reference

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