| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| BUT90-QR-B | TT Electronics Power and Hybrid / Semelab Limited | Check for Price | Power Bipolar Transistor, 50A I(C), 125V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin | BUT90 vs BUT90-QR-B |
| BUT90 | TT Electronics Power and Hybrid / Semelab Limited | Check for Price | Power Bipolar Transistor, 50A I(C), 125V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin | BUT90 vs BUT90 |
| BUT90R1 | TT Electronics Power and Hybrid / Semelab Limited | Check for Price | Power Bipolar Transistor, 50A I(C), 125V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin | BUT90 vs BUT90R1 |
| BUT90R1 | TT Electronics Resistors | Check for Price | Power Bipolar Transistor, 50A I(C), 125V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin | BUT90 vs BUT90R1 |
| BUT90.MODR1 | TT Electronics Power and Hybrid / Semelab Limited | Check for Price | Power Bipolar Transistor, 50A I(C), 125V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin | BUT90 vs BUT90.MODR1 |
| BUT90-QR-BR1 | TT Electronics Power and Hybrid / Semelab Limited | Check for Price | Power Bipolar Transistor, 50A I(C), 125V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin | BUT90 vs BUT90-QR-BR1 |
| BUT90.MOD | TT Electronics Resistors | Check for Price | Power Bipolar Transistor, 50A I(C), 125V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin | BUT90 vs BUT90.MOD |
Part Details for BUT90 by STMicroelectronics
Results Overview of BUT90 by STMicroelectronics
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (7 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- 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.
BUT90 Information
BUT90 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 BUT90
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
BUT90-ND
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DigiKey | TRANS NPN 125V 50A TO-3 Min Qty: 80 Container: Tube |
0 Tube |
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$8.6891 | Buy Now |
US Tariff Estimator: BUT90 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.
BUT90 Part Data Attributes
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BUT90
STMicroelectronics
Buy Now
Datasheet
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Compare Parts:
BUT90
STMicroelectronics
Power Bipolar Transistor, 50A I(C), 125V V(BR)CEO, 1-Element, NPN, Silicon, TO-3, Metal, 2 Pin
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| Part Life Cycle Code | Obsolete | |
| Part Package Code | TO-204AA | |
| Package Description | To-3, 2 Pin | |
| Pin Count | 2 | |
| ECCN Code | EAR99 | |
| HTS Code | 8541.29.00.95 | |
| Case Connection | Collector | |
| Collector Current-Max (IC) | 50 A | |
| Collector-Emitter Voltage-Max | 125 V | |
| Configuration | Single | |
| JEDEC-95 Code | TO-3 | |
| JESD-30 Code | O-MBFM-P2 | |
| JESD-609 Code | e0 | |
| Number of Elements | 1 | |
| Number of Terminals | 2 | |
| Operating Temperature-Max | 200 °C | |
| Package Body Material | Metal | |
| Package Shape | Round | |
| Package Style | Flange Mount | |
| Polarity/Channel Type | Npn | |
| Power Dissipation Ambient-Max | 250 W | |
| Power Dissipation-Max (Abs) | 250 W | |
| Qualification Status | Not Qualified | |
| Surface Mount | No | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | Pin/Peg | |
| Terminal Position | Bottom | |
| Transistor Application | Switching | |
| Transistor Element Material | Silicon | |
| Turn-off Time-Max (toff) | 1900 Ns | |
| VCEsat-Max | 0.9 V |
Alternate Parts for BUT90
This table gives cross-reference parts and alternative options found for BUT90. 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 BUT90, 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.
BUT90 Frequently Asked Questions (FAQ)
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The maximum safe operating area (SOA) for the BUT90 is not explicitly stated in the datasheet, but it can be estimated based on the device's thermal resistance, maximum junction temperature, and power dissipation. As a general rule, it's recommended to keep the device within the SOA to ensure reliable operation and prevent damage.
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To ensure the BUT90 is properly biased, follow the recommended biasing scheme in the datasheet, which includes setting the base-emitter voltage (VBE) and collector-emitter voltage (VCE) within the specified ranges. Additionally, ensure the device is operated within the recommended temperature range and that the power supply is stable and noise-free.
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For optimal performance and thermal management, it's recommended to follow good PCB design practices, such as using a solid ground plane, minimizing trace lengths, and using thermal vias to dissipate heat. Additionally, ensure the device is mounted on a heat sink or thermal pad, and that the PCB is designed to minimize thermal resistance.
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To protect the BUT90 from ESD, follow standard ESD handling procedures, such as using an ESD wrist strap or mat, and ensuring that all equipment and tools are properly grounded. Additionally, consider adding ESD protection devices, such as TVS diodes or ESD protection arrays, to the PCB design.
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The reliability and lifetime expectations for the BUT90 are dependent on various factors, including operating conditions, temperature, and usage patterns. However, STMicroelectronics provides reliability data and failure rates for the device in the datasheet and application notes. It's recommended to consult these resources and perform thorough reliability testing to ensure the device meets the required specifications.