| Part Number | BC547BU | BC549BU | 
|---|---|---|
| Manufacturer | onsemi | onsemi | 
| Category | Transistors - Bipolar (BJT) - Single | Transistors - Bipolar (BJT) - Single | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Transistor Type | NPN | NPN | 
| Current - Collector (Ic) (Max) | 100 mA | 100 mA | 
| Voltage - Collector Emitter Breakdown (Max) | 45 V | 30 V | 
| Vce Saturation (Max) @ Ib, Ic | 600mV @ 5mA, 100mA | 600mV @ 5mA, 100mA | 
| Current - Collector Cutoff (Max) | 15nA (ICBO) | 15nA (ICBO) | 
| DC Current Gain (hFE) (Min) @ Ic, Vce | 110 @ 2mA, 5V | 110 @ 2mA, 5V | 
| Power - Max | 500 mW | 500 mW | 
| Frequency - Transition | 300MHz | 300MHz | 
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) | TO-226-3, TO-92-3 (TO-226AA) | 
| Supplier Device Package | TO-92-3 | TO-92-3 |