Part Details for BF247A by Fairchild Semiconductor Corporation
Results Overview of BF247A by Fairchild Semiconductor Corporation
- Distributor Offerings: (0 listings)
- Number of FFF Equivalents: (1 replacement)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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BF247A Information
BF247A by Fairchild Semiconductor Corporation is a Small Signal Field-Effect Transistor.
Small Signal Field-Effect 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 BF247A
BF247A CAD Models
BF247A Part Data Attributes
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BF247A
Fairchild Semiconductor Corporation
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Datasheet
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BF247A
Fairchild Semiconductor Corporation
N-Channel Amplifier, 3LD, TO-92, MOLDED, STD STRAIGHT LD (NO EOL CODE), 2000/BULK
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | FAIRCHILD SEMICONDUCTOR CORP | |
| Part Package Code | TO-92 | |
| Package Description | CYLINDRICAL, O-PBCY-T3 | |
| Pin Count | 3 | |
| Manufacturer Package Code | 3LD, TO-92, MOLDED, STD STRAIGHT LD (NO EOL CODE) | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8541.21.00.95 | |
| Configuration | SINGLE | |
| FET Technology | JUNCTION | |
| JEDEC-95 Code | TO-92 | |
| JESD-30 Code | O-PBCY-T3 | |
| JESD-609 Code | e1 | |
| Number of Elements | 1 | |
| Number of Terminals | 3 | |
| Operating Mode | DEPLETION MODE | |
| Operating Temperature-Max | 150 °C | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Shape | ROUND | |
| Package Style | CYLINDRICAL | |
| Polarity/Channel Type | N-CHANNEL | |
| Power Dissipation-Max (Abs) | 0.35 W | |
| Qualification Status | Not Qualified | |
| Surface Mount | NO | |
| Terminal Finish | TIN SILVER COPPER | |
| Terminal Form | THROUGH-HOLE | |
| Terminal Position | BOTTOM | |
| Transistor Application | SWITCHING | |
| Transistor Element Material | SILICON |
Alternate Parts for BF247A
This table gives cross-reference parts and alternative options found for BF247A. 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 BF247A, 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.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| BF247A | Baneasa SA | Check for Price | Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-92D, 3 PIN | BF247A vs BF247A |
BF247A Frequently Asked Questions (FAQ)
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The maximum safe operating area (SOA) for the BF247A is not explicitly stated in the datasheet. However, it's recommended to follow the general guidelines for NPN transistors, which is to limit the collector-emitter voltage (Vce) to 30V and the collector current (Ic) to 500mA to ensure safe operation.
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The BF247A has a thermal resistance (RθJA) of 200°C/W. To handle thermal management, ensure good heat sinking, use a heat sink with a thermal resistance of less than 10°C/W, and keep the ambient temperature below 50°C. You can also use thermal interface materials to improve heat transfer.
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The recommended storage temperature for the BF247A is -40°C to 100°C. Storing the device outside this range may affect its reliability and performance.
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Yes, the BF247A can be used in switching applications due to its high switching speed (tf = 10ns, tr = 20ns) and low saturation voltage (Vce(sat) = 0.2V). However, ensure that the device is properly biased and that the switching frequency is within the recommended range to avoid overheating and reduce electromagnetic interference (EMI).
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To select the correct resistor values for the BF247A base circuit, consider the desired base current, collector current, and voltage drop across the resistors. A general rule of thumb is to choose resistors that provide a base current of 1/10 to 1/20 of the collector current. You can use online calculators or simulation tools to determine the optimal resistor values for your specific application.