| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| BD709 | Baneasa SA | Check for Price | Power Bipolar Transistor, 12A I(C), 1-Element, NPN, Silicon, TO-220AB, Plastic/Epoxy, 3 Pin | BD709 vs BD709 |
Part Details for BD709 by STMicroelectronics
Results Overview of BD709 by STMicroelectronics
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (1 replacement)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (1 option)
- CAD Models: (Request Part)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
BD709 Information
BD709 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.
Price & Stock for BD709
| Part # | Distributor | Description | Stock | Price | Buy | |
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Quest Components | TRANSISTOR,BJT,NPN,80V V(BR)CEO,12A I(C),TO-220AB | 21 |
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Buy Now | |
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Chip Stock | Power Bipolar Transistor, 12A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-220AB, Plastic/Epoxy, 3 Pin | 11500 |
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RFQ |
US Tariff Estimator: BD709 by STMicroelectronics
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
BD709 Part Data Attributes
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BD709
STMicroelectronics
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Datasheet
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Compare Parts:
BD709
STMicroelectronics
Power Bipolar Transistor, 12A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-220AB, Plastic/Epoxy, 3 Pin
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Part Package Code | SFM | |
| Package Description | To-220, 3 Pin | |
| Pin Count | 3 | |
| ECCN Code | EAR99 | |
| HTS Code | 8541.29.00.95 | |
| Collector Current-Max (IC) | 12 A | |
| Collector-Emitter Voltage-Max | 80 V | |
| Configuration | Single | |
| DC Current Gain-Min (hFE) | 15 | |
| JEDEC-95 Code | TO-220AB | |
| JESD-30 Code | R-PSFM-T3 | |
| JESD-609 Code | e3 | |
| Number of Elements | 1 | |
| Number of Terminals | 3 | |
| Operating Temperature-Max | 150 °C | |
| Package Body Material | Plastic/Epoxy | |
| Package Shape | Rectangular | |
| Package Style | Flange Mount | |
| Polarity/Channel Type | Npn | |
| Power Dissipation Ambient-Max | 75 W | |
| Power Dissipation-Max (Abs) | 75 W | |
| Qualification Status | Not Qualified | |
| Surface Mount | No | |
| Terminal Finish | Matte Tin (Sn) | |
| Terminal Form | Through-Hole | |
| Terminal Position | Single | |
| Transistor Application | Switching | |
| Transistor Element Material | Silicon | |
| Transition Frequency-Nom (fT) | 3 Mhz | |
| VCEsat-Max | 1 V |
Alternate Parts for BD709
This table gives cross-reference parts and alternative options found for BD709. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of BD709, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
BD709 Frequently Asked Questions (FAQ)
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STMicroelectronics recommends a 4-layer PCB with a solid ground plane, and to keep the input and output tracks as short as possible. Additionally, a 10nF decoupling capacitor between VIN and GND, and a 1uF capacitor between VOUT and GND are recommended.
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To ensure SOA, limit the input voltage rise time to 10ms or slower, and use a soft-start circuit to control the output voltage. Additionally, add a delay between enabling the device and applying the input voltage.
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The maximum allowed input voltage ripple is 100mV peak-to-peak. Exceeding this value may affect the device's performance and stability.
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Yes, the BD709 can operate up to 150°C junction temperature. However, the device's performance and reliability may degrade above 125°C. Ensure proper thermal design and heat dissipation to maintain a safe operating temperature.
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Use an oscilloscope to monitor the input and output voltages, and check for proper PCB layout, decoupling, and component selection. Verify the input voltage is within the recommended range, and the output capacitor is suitable for the application. Consult the datasheet and application notes for guidance on troubleshooting and debugging.