Part Details for BC857B by STMicroelectronics
Results Overview of BC857B by STMicroelectronics
- Distributor Offerings: (0 listings)
- Number of FFF Equivalents: (7 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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BC857B Information
BC857B by STMicroelectronics is a Small Signal Bipolar Transistor.
Small Signal 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.
Part Details for BC857B
BC857B CAD Models
BC857B Part Data Attributes
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BC857B
STMicroelectronics
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Datasheet
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BC857B
STMicroelectronics
100mA, 45V, PNP, Si, SMALL SIGNAL TRANSISTOR
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| Rohs Code | No | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | STMICROELECTRONICS | |
| Reach Compliance Code | unknown | |
| ECCN Code | EAR99 | |
| Samacsys Manufacturer | STMicroelectronics | |
| Collector Current-Max (IC) | 0.1 A | |
| Collector-Emitter Voltage-Max | 45 V | |
| Configuration | SINGLE | |
| DC Current Gain-Min (hFE) | 220 | |
| JESD-30 Code | R-PDSO-G3 | |
| JESD-609 Code | e0 | |
| Number of Elements | 1 | |
| Number of Terminals | 3 | |
| Operating Temperature-Max | 150 °C | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Polarity/Channel Type | PNP | |
| Power Dissipation-Max (Abs) | 0.3 W | |
| Qualification Status | Not Qualified | |
| Surface Mount | YES | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | GULL WING | |
| Terminal Position | DUAL | |
| Transistor Application | SWITCHING | |
| Transistor Element Material | SILICON | |
| Transition Frequency-Nom (fT) | 100 MHz |
Alternate Parts for BC857B
This table gives cross-reference parts and alternative options found for BC857B. 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 BC857B, 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 |
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| BC857BLT1 | onsemi | Check for Price | PNP Bipolar Transistor, SOT-23 (TO-236) 3 LEAD, 3000-REEL | BC857B vs BC857BLT1 |
| BC857BR | NXP Semiconductors | Check for Price | TRANSISTOR 100 mA, 45 V, PNP, Si, SMALL SIGNAL TRANSISTOR, BIP General Purpose Small Signal | BC857B vs BC857BR |
| BC857B | Continental Device India Ltd | Check for Price | Small Signal Bipolar Transistor, 0.1A I(C), 45V V(BR)CEO, 1-Element, PNP, Silicon, SOT-23, 3 PIN | BC857B vs BC857B |
| BC857BTRL13 | NXP Semiconductors | Check for Price | 100mA, 45V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-236AB | BC857B vs BC857BTRL13 |
| BC857B | Diodes Incorporated | Check for Price | Small Signal Bipolar Transistor, 0.1A I(C), 45V V(BR)CEO, 1-Element, PNP, Silicon, SOT-23, 3 PIN | BC857B vs BC857B |
| BC857BTRL13 | YAGEO Corporation | Check for Price | Small Signal Bipolar Transistor, 0.1A I(C), 45V V(BR)CEO, 1-Element, PNP, Silicon | BC857B vs BC857BTRL13 |
| BC857BR-TAPE-13 | NXP Semiconductors | Check for Price | TRANSISTOR 100 mA, 45 V, PNP, Si, SMALL SIGNAL TRANSISTOR, BIP General Purpose Small Signal | BC857B vs BC857BR-TAPE-13 |
BC857B Frequently Asked Questions (FAQ)
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The BC857B can operate safely between -55°C to 150°C, but the recommended operating temperature range is -40°C to 125°C.
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To ensure proper biasing, the base-emitter voltage (VBE) should be around 0.7V, and the collector-emitter voltage (VCE) should be at least 1V. Additionally, the base current should be limited to prevent overheating.
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The maximum collector current (IC) for the BC857B is 100mA, and the maximum base current (IB) is 10mA.
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To protect the BC857B from ESD, handle the device by the body, use an anti-static wrist strap or mat, and store the device in an anti-static bag or container.
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Yes, the BC857B can be used as a switch, but it's not recommended due to its relatively low current handling capability. For switching applications, consider using a transistor with a higher current rating.