Allicdata Part #: | 1SMA4749-GT3TRSMC-ND |
Manufacturer Part#: |
1SMA4749-GT3TR |
Price: | $ 0.04 |
Product Category: | Discrete Semiconductor Products |
Manufacturer: | SMC Diode Solutions |
Short Description: | DIODE ZENER 24V 1W SMA |
More Detail: | Zener Diode 24V 1W ±5% Surface Mount SMA (DO-214AC... |
DataSheet: | 1SMA4749-GT3TR Datasheet/PDF |
Quantity: | 1000 |
80000 +: | $ 0.03427 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Voltage - Zener (Nom) (Vz): | 24V |
Tolerance: | ±5% |
Power - Max: | 1W |
Impedance (Max) (Zzt): | 25 Ohms |
Current - Reverse Leakage @ Vr: | 5µA @ 18.2V |
Voltage - Forward (Vf) (Max) @ If: | 1.2V @ 200mA |
Operating Temperature: | -65°C ~ 150°C |
Mounting Type: | Surface Mount |
Package / Case: | DO-214AC, SMA |
Supplier Device Package: | SMA (DO-214AC) |
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1SMA4749-GT3TR is one of the various types of diodes, specifically categorized under single Zener diodes. It comes in a DO-213AC package and is comprised of Sintered Aluminum Nitride material. The device has a Zener voltage of 11.4 volts with a tolerance of 5% and an operating junction temperature ranging 0°C to 150°C.
Single Zener diodes such as 1SMA4749-GT3TR are used in a variety of applications including over-voltage protection, voltage stability, power supply circuits, thermal overload protection, and surge protection. They are also commonly used in communications, automotive, defense, and industrial systems.
1SMA4749-GT3TR has a Zener voltage of 11.4 volts and a maximum power rating of 2.2 watts. The peak surge power is 12 watts and the maximum operating temperature is 7000Vrms. Its operating environment temperature range is -50°C to +150°C. The diode is also protected by a thick-film nitride passivation that extends its life and reliability. Additionally, the package of 1SMA4749-GT3TR is designed to offer improved thermal resistance.
The working principle of single Zener diodes such as 1SMA4749-GT3TR is based on the breakdown of the Zener junction which occurs when the reverse voltage applied to the diode exceeds the breakdown voltage. This causes electrons from the greater concentration of electrons in the P-type material to be injected into the N-type material and generates a reverse current. The current then increases exponentially, until the Zener voltage is reached. At this point, the reverse voltage is not increased any further, as the applied voltage is clamped at the Zener voltage.
Single Zener diodes are three-layer devices which are comprised of a PN junction, a highly doped and thick-film nitride passivation layer. The PN junction and the thickness of the passivation layers are precisely managed to obtain the desired breakdown voltage of the diode. To ensure the proper functioning of single Zener diodes, it is important to ensure that the temperature operating range, voltage and power ratings are strictly adhered to.
In conclusion, 1SMA4749-GT3TR is a single Zener diode that has a Zener voltage of 11.4 volts, with a 5% tolerance. It is used in a variety of applications including over-voltage protection, voltage stability, power supply circuits and thermal overload protection. The diode is also protected by a thick-film nitride passivation that extends its life and reliability. The working principle of the 1SMA4749-GT3TR is based on the breakdown of the Zener junction, which occurs when the reverse voltage applied to the diode exceeds the breakdown voltage.
The specific data is subject to PDF, and the above content is for reference
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