Part Details for 2ST5949 by STMicroelectronics
Results Overview of 2ST5949 by STMicroelectronics
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2ST5949 Information
2ST5949 by STMicroelectronics is a Power Bipolar Transistor.
Power Bipolar Transistors are under the broader part category of Transistors.
A transistor is a small semiconductor device used to amplify, control, or create electrical signals. When selecting a transistor, factors such as voltage, current rating, gain, and power dissipation must be considered, with common types. Read more about Transistors on our Transistors part category page.
Part Details for 2ST5949
2ST5949 CAD Models
2ST5949 Part Data Attributes
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2ST5949
STMicroelectronics
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Datasheet
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2ST5949
STMicroelectronics
17A, 250V, NPN, Si, POWER TRANSISTOR, TO-3, ROHS COMPLIANT PACKAGE-2
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| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | STMICROELECTRONICS | |
| Part Package Code | TO-204AA | |
| Package Description | ROHS COMPLIANT PACKAGE-2 | |
| Pin Count | 2 | |
| Reach Compliance Code | unknown | |
| ECCN Code | EAR99 | |
| Samacsys Manufacturer | STMicroelectronics | |
| Case Connection | COLLECTOR | |
| Collector Current-Max (IC) | 17 A | |
| Collector-Emitter Voltage-Max | 250 V | |
| Configuration | SINGLE | |
| DC Current Gain-Min (hFE) | 35 | |
| JEDEC-95 Code | TO-3 | |
| JESD-30 Code | O-MBFM-P2 | |
| JESD-609 Code | e3 | |
| Moisture Sensitivity Level | 1 | |
| Number of Elements | 1 | |
| Number of Terminals | 2 | |
| Operating Temperature-Max | 150 °C | |
| Package Body Material | METAL | |
| Package Shape | ROUND | |
| Package Style | FLANGE MOUNT | |
| Polarity/Channel Type | NPN | |
| Power Dissipation-Max (Abs) | 250 W | |
| Qualification Status | Not Qualified | |
| Surface Mount | NO | |
| Terminal Finish | MATTE TIN | |
| Terminal Form | PIN/PEG | |
| Terminal Position | BOTTOM | |
| Transistor Application | SWITCHING | |
| Transistor Element Material | SILICON | |
| Transition Frequency-Nom (fT) | 25 MHz |
2ST5949 Frequently Asked Questions (FAQ)
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The 2ST5949 can operate from -40°C to 150°C, but the maximum junction temperature (TJ) should not exceed 150°C.
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To ensure proper biasing, connect the base of the transistor to a voltage source through a resistor (Rb) and a capacitor (Cb) in parallel. The recommended values are Rb = 1 kΩ and Cb = 100 nF.
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To minimize thermal resistance, use a large copper area for the collector pin, and ensure good thermal conductivity between the device and the heat sink. A thermal pad or thermal via can also be used to improve heat dissipation.
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Yes, the 2ST5949 can be used in switching applications, but it's essential to consider the maximum switching frequency (fs), which is typically limited to 100 kHz. Additionally, ensure the device is properly biased and the collector-emitter voltage (VCE) is within the recommended range.
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To protect the 2ST5949 from ESD, use anti-static precautions during handling and storage, such as wrist straps, anti-static bags, and mats. Additionally, ensure the PCB design includes ESD protection components, such as TVS diodes or ESD protection arrays.