| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| BD679A | STMicroelectronics | $0.3588 | Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin | BD679 vs BD679A |
| BD679ASTU | onsemi | $2.3700 | Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin | BD679 vs BD679ASTU |
| BD679A | Central Semiconductor Corp | Check for Price | Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin | BD679 vs BD679A |
| BD679A | Fairchild Semiconductor Corporation | Check for Price | Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin | BD679 vs BD679A |
| BD679A | Continental Device India Ltd | Check for Price | Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin | BD679 vs BD679A |
| BD679AG | Rochester Electronics LLC | Check for Price | 4A, 80V, NPN, Si, POWER TRANSISTOR, TO-225AA, ROHS COMPLIANT, PLASTIC, CASE 77-09, 3 PIN | BD679 vs BD679AG |
| BD679A | Samsung Semiconductor | Check for Price | Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin | BD679 vs BD679A |
| BD679AS | Rochester Electronics LLC | Check for Price | 4A, 80V, NPN, Si, POWER TRANSISTOR, TO-126 | BD679 vs BD679AS |
| BD679 | Continental Device India Ltd | Check for Price | Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin | BD679 vs BD679 |
| BD679A | Crimson Semiconductor Inc | Check for Price | Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin | BD679 vs BD679A |
Part Details for BD679 by STMicroelectronics
Results Overview of BD679 by STMicroelectronics
- Distributor Offerings: (16 listings)
- Number of FFF Equivalents: (10 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Available)
- 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.
BD679 Information
BD679 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 BD679
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
24M0737
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Newark | Darlington Transistor, Sot-32, |Stmicroelectronics BD679 RoHS: Compliant Min Qty: 5 Package Multiple: 1 Date Code: 1 Container: Bulk | 368 |
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$0.3053 / $0.7019 | Buy Now |
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Future Electronics | BD6xxx Series NPN 80 V 4 A Complementary Power Darlington Transistor - SOT-32 RoHS: Compliant pbFree: Yes Min Qty: 4000 Package Multiple: 50 Lead time: 20 Weeks Container: Tube | 0Tube |
|
$0.1400 / $0.1530 | Buy Now |
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Future Electronics | BD6xxx Series NPN 80 V 4 A Complementary Power Darlington Transistor - SOT-32 RoHS: Compliant pbFree: Yes Min Qty: 8000 Package Multiple: 50 Lead time: 20 Weeks Container: Tube | 0Tube |
|
$0.1400 / $0.1530 | Buy Now |
|
DISTI #
94238419
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Verical | Trans Darlington NPN 80V 4A 40000mW 3-Pin(3+Tab) SOT-32 Tube RoHS: Exempt Min Qty: 37 Package Multiple: 1 Date Code: 2631 | Americas - 173296 |
|
$0.1399 / $0.2615 | Buy Now |
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DISTI #
511-BD679
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Mouser Electronics | Darlington Transistors DARLINGTON TRAN RoHS: Compliant | 7503 |
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$0.1600 / $1.0000 | Buy Now |
|
DISTI #
E02:0323_00208011
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Arrow Electronics | Trans Darlington NPN 80V 4A 40000mW 3-Pin(3+Tab) SOT-32 Tube RoHS: Exempt Min Qty: 1 Package Multiple: 1 Lead time: 20 Weeks Date Code: 2631 | Europe - 173296 |
|
$0.1389 / $0.2595 | Buy Now |
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STMicroelectronics | NPN power Darlington transistor COO: India Min Qty: 1 | 7503 |
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$0.3100 / $1.0000 | Buy Now |
|
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Bristol Electronics | Trans Darlington NPN 80V 4A 40000mW 3-Pin(3+Tab) TO-225 Box Min Qty: 1 | 73 |
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$0.3300 / $0.8250 | Buy Now |
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|
Quest Components | 4 A, 80 V, NPN, Si, POWER TRANSISTOR, TO-225AA | 58 |
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$0.5500 / $1.1000 | Buy Now |
|
DISTI #
E02:0323_00208011
|
Arrow Electronics | Trans Darlington NPN 80V 4A 40000mW 3-Pin(3+Tab) SOT-32 Tube RoHS: Exempt Min Qty: 1 Package Multiple: 1 Lead time: 20 Weeks Date Code: 2631 | Europe - 173296 |
|
$0.1389 / $0.2595 | Buy Now |
US Tariff Estimator: BD679 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.
BD679 CAD Models
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BD679 Part Data Attributes
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BD679
STMicroelectronics
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Datasheet
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BD679
STMicroelectronics
Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin
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| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Part Package Code | SIP | |
| Package Description | Sot-32, 3 Pin | |
| Pin Count | 3 | |
| ECCN Code | EAR99 | |
| HTS Code | 8541.29.00.95 | |
| Factory Lead Time | 14 Weeks | |
| Case Connection | Isolated | |
| Collector Current-Max (IC) | 4 A | |
| Collector-Emitter Voltage-Max | 80 V | |
| Configuration | Darlington With Built-In Diode And Resistor | |
| DC Current Gain-Min (hFE) | 750 | |
| JEDEC-95 Code | TO-126 | |
| 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 | 40 W | |
| Power Dissipation-Max (Abs) | 40 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) | 10 Mhz | |
| VCEsat-Max | 2.5 V |
Alternate Parts for BD679
This table gives cross-reference parts and alternative options found for BD679. 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 BD679, 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.
BD679 Frequently Asked Questions (FAQ)
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The BD679 can operate safely between -40°C to 150°C, but the recommended operating temperature range is -20°C to 125°C for optimal performance.
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To ensure proper biasing, make sure to provide a stable voltage supply, and set the base-emitter voltage (VBE) between 0.6V to 0.8V. Also, ensure the collector-emitter voltage (VCE) is within the recommended range of 1V to 50V.
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The BD679 can handle a maximum collector current (IC) of 500mA per transistor, and a total current of 1.5A for the entire array.
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To prevent overheating, ensure good heat dissipation by using a heat sink, and keep the junction temperature (TJ) below 150°C. Also, avoid exceeding the maximum power dissipation (PD) of 1.5W per transistor.
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Yes, the BD679 can be used as a switch, but it's essential to ensure the transistor is fully saturated (VCE(sat) < 0.5V) to minimize power losses. Also, consider the switching frequency and ensure it's within the recommended range.