| PartNumber | BC549B A1 | BC549B A1G | BC549B |
| Description | Bipolar Transistors - BJT NPN Transistor | Bipolar Transistors - BJT NPN Transistor | Bipolar Transistors - BJT NPN 30V 100mA HFE/45 |
| Manufacturer | Taiwan Semiconductor | Taiwan Semiconductor | ON Semiconductor |
| Product Category | Bipolar Transistors - BJT | Bipolar Transistors - BJT | Bipolar Transistors - BJT |
| RoHS | Y | Y | Y |
| Package / Case | TO-92-3 | - | TO-92-3 |
| Series | BC5xxA/B/C | BC5xxA/B/C | BC549 |
| Packaging | Ammo Pack | Reel | Bulk |
| Brand | Taiwan Semiconductor | Taiwan Semiconductor | ON Semiconductor / Fairchild |
| Product Type | BJTs - Bipolar Transistors | BJTs - Bipolar Transistors | BJTs - Bipolar Transistors |
| Factory Pack Quantity | 4000 | 4000 | 2000 |
| Subcategory | Transistors | Transistors | Transistors |
| Unit Weight | 0.016000 oz | - | 0.007055 oz |
| Mounting Style | - | - | Through Hole |
| Transistor Polarity | - | - | NPN |
| Configuration | - | - | Single |
| Collector Emitter Voltage VCEO Max | - | - | 30 V |
| Collector Base Voltage VCBO | - | - | 30 V |
| Emitter Base Voltage VEBO | - | - | 5 V |
| Collector Emitter Saturation Voltage | - | - | 250 mV |
| Maximum DC Collector Current | - | - | 0.1 A |
| Gain Bandwidth Product fT | - | - | 300 MHz |
| Minimum Operating Temperature | - | - | - 65 C |
| Maximum Operating Temperature | - | - | + 150 C |
| Height | - | - | 5.33 mm |
| Length | - | - | 5.2 mm |
| Width | - | - | 4.19 mm |
| Continuous Collector Current | - | - | 0.1 A |
| Pd Power Dissipation | - | - | 500 mW |