Part Details for BF257 by Micro Electronics Corporation
Overview of BF257 by Micro Electronics Corporation
- Distributor Offerings: (0 listings)
- Number of FFF Equivalents: (9 crosses)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- 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.
Applications
Consumer Electronics
Security and Surveillance
Internet of Things (IoT)
Space Technology
Environmental Monitoring
Audio and Video Systems
Computing and Data Storage
Financial Technology (Fintech)
Smart Cities
Telecommunications
Communication and Networking
Automotive
Part Details for BF257
BF257 CAD Models
BF257 Part Data Attributes:
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BF257
Micro Electronics Corporation
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Datasheet
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BF257
Micro Electronics Corporation
Small Signal Bipolar Transistor, 0.1A I(C), 160V V(BR)CEO, 1-Element, NPN, Silicon, TO-39, TO-39, 3 PIN
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| Part Life Cycle Code | Contact Manufacturer | |
| Ihs Manufacturer | MICRO ELECTRONICS LTD | |
| Part Package Code | TO-39 | |
| Package Description | CYLINDRICAL, O-MBCY-W3 | |
| Pin Count | 3 | |
| Reach Compliance Code | unknown | |
| ECCN Code | EAR99 | |
| Collector Current-Max (IC) | 0.1 A | |
| Collector-Emitter Voltage-Max | 160 V | |
| Configuration | SINGLE | |
| DC Current Gain-Min (hFE) | 25 | |
| JEDEC-95 Code | TO-39 | |
| JESD-30 Code | O-MBCY-W3 | |
| Number of Elements | 1 | |
| Number of Terminals | 3 | |
| Operating Temperature-Max | 175 °C | |
| Package Body Material | METAL | |
| Package Shape | ROUND | |
| Package Style | CYLINDRICAL | |
| Polarity/Channel Type | NPN | |
| Power Dissipation-Max (Abs) | 5 W | |
| Qualification Status | Not Qualified | |
| Surface Mount | NO | |
| Terminal Form | WIRE | |
| Terminal Position | BOTTOM | |
| Transistor Element Material | SILICON | |
| Transition Frequency-Nom (fT) | 50 MHz |
Alternate Parts for BF257
This table gives cross-reference parts and alternative options found for BF257. 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 BF257, 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 | Description | Manufacturer | Compare |
|---|---|---|---|
| BF257 | Small Signal Bipolar Transistor, 0.1A I(C), 1-Element, NPN, Silicon, TO-39, TO-39, 3 PIN | Baneasa SA | BF257 vs BF257 |
| BF257 | Small Signal Bipolar Transistor, 0.1A I(C), 160V V(BR)CEO, 1-Element, NPN, Silicon, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN | TT Electronics Resistors | BF257 vs BF257 |
| BF257 | 160V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-39 | STMicroelectronics | BF257 vs BF257 |
| BF257 | 100mA, 160V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN | TT Electronics Power and Hybrid / Semelab Limited | BF257 vs BF257 |
| BF257G4 | 100mA, 160V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN | TT Electronics Power and Hybrid / Semelab Limited | BF257 vs BF257G4 |
| BF257 | Small Signal Bipolar Transistor, 0.1A I(C), 160V V(BR)CEO, 1-Element, NPN, Silicon, TO-39, | Crimson Semiconductor Inc | BF257 vs BF257 |
| BF257.MOD | 100mA, 160V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN | TT Electronics Power and Hybrid / Semelab Limited | BF257 vs BF257.MOD |
| BF257.MODG4 | Small Signal Bipolar Transistor, 0.1A I(C), 160V V(BR)CEO, 1-Element, NPN, Silicon, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN | TT Electronics Resistors | BF257 vs BF257.MODG4 |
| BF257G4 | Small Signal Bipolar Transistor, 0.1A I(C), 160V V(BR)CEO, 1-Element, NPN, Silicon, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN | TT Electronics Resistors | BF257 vs BF257G4 |