| Allicdata Part #: | 2N1909-ND |
| Manufacturer Part#: |
2N1909 |
| Price: | $ 40.75 |
| Product Category: | Discrete Semiconductor Products |
| Manufacturer: | Powerex Inc. |
| Short Description: | THYRISTOR STUD 25V 70A TO-94 |
| More Detail: | SCR 25V 110A Standard Recovery Chassis, Stud Mount |
| DataSheet: |  2N1909 Datasheet/PDF |
| Quantity: | 1000 |
| 30 +: | $ 37.04400 |
Specifications
| Series: | -- |
| Packaging: | Bulk |
| Part Status: | Active |
| Voltage - Off State: | 25V |
| Voltage - Gate Trigger (Vgt) (Max): | 3V |
| Current - Gate Trigger (Igt) (Max): | 70mA |
| Voltage - On State (Vtm) (Max): | 2.3V |
| Current - On State (It (AV)) (Max): | 70A |
| Current - On State (It (RMS)) (Max): | 110A |
| Current - Off State (Max): | 20mA |
| Current - Non Rep. Surge 50, 60Hz (Itsm): | 1000A @ 60Hz |
| SCR Type: | Standard Recovery |
| Operating Temperature: | -40°C ~ 125°C |
| Mounting Type: | Chassis, Stud Mount |
| Package / Case: | TO-209AC, TO-94-4, Stud |
| Supplier Device Package: | -- |
Description
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Thyristors - SCRs are divided into two categories according to their use: low-power SCRs and high-power SCRs. The power ranges from a few watts to tens of kilowatts. The 2N1909 is a specifically designed low voltage, low power Thyristor - an SCR that is mainly used in a wide range of applications. The 2N1909 SCR is a three-terminal semiconductor device, an SCR that can perform several important functions in electronic circuits, such as regulating voltage and current, controlling on/off switching and providing protection.
The main working principle of the 2N1909 SCR is to act as a switch to control the flow of current in an electronic circuit. It is composed of two rectifying bipolar P-N junction diodes connected in series, which is the basic switching element of an SCR. The gate of the SCR is connected to a third terminal and works as a control gate for controlling the switching process. When a forward bias voltage is applied between the gate and the anode of the SCR, it turns “on” to allow current to flow from the anode to the cathode. When the voltage at the gate becomes zero, the SCR turns off, denoting a triggered or self-latching mode of operation.
The 2N1909 SCR has a low voltage, low power, 500V rating and a 4A continuous forward current and a 200mA unregulated gate current rating. It is used in many applications including switching, clamping and triggering circuits. It is also used in thyristor application circuits such as voltage regulator and low-voltage power supplies, switch mode power supplies and AC line regulation circuits. The 2N1909 SCR is also used in lighting controllers, phase control circuits, battery charging systems, UPS systems, AC line monitoring equipment and general purpose circuits.
The 2N1909 SCR has several limitations including a relatively slow switching response, highly temperature dependent threshold voltage for triggering, and a high leakage current at junction temperatures above 125 ̊C. To overcome these limitations, several modern techniques have been developed. These techniques include combination of SCRs with other devices like timer ICs and pulse transformers, using optimized gate current biasing strategies, adding discrete components to reduce switching times and using active gate drive techniques.
The 2N1909 SCR is a widely used Thyristor - an SCR in various applications. It has many advantages like excellent switch on-off characteristics, low-voltage, low-power rating, and low gate drive current. These advantages make the 2N1909 SCR an ideal choice for low-power applications. The 2N1909 SCR can be used in a variety of applications, where higher power and faster switching are not necessary.
The specific data is subject to PDF, and the above content is for reference
Related Products
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|---|
| 2N1914 | Powerex Inc. | 42.91 $ | 1000 | THYRISTOR STUD 250V 70A T... |
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| 2N1916 | Powerex Inc. | 45.65 $ | 1000 | THYRISTOR STUD 400V 70A T... |
| 2N1910 | Powerex Inc. | 40.75 $ | 1000 | THYRISTOR STUD 50V 70A TO... |
| 2N1909 | Powerex Inc. | 40.75 $ | 1000 | THYRISTOR STUD 25V 70A TO... |
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