| Part Number | BD159 | BD179 | 
|---|---|---|
| Manufacturer | onsemi | onsemi | 
| Category | Transistors - Bipolar (BJT) - Single | Transistors - Bipolar (BJT) - Single | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Transistor Type | NPN | NPN | 
| Current - Collector (Ic) (Max) | 500 mA | 3 A | 
| Voltage - Collector Emitter Breakdown (Max) | 350 V | 80 V | 
| Vce Saturation (Max) @ Ib, Ic | - | 800mV @ 100mA, 1A | 
| Current - Collector Cutoff (Max) | 100µA (ICBO) | 100µA (ICBO) | 
| DC Current Gain (hFE) (Min) @ Ic, Vce | 30 @ 50mA, 10V | 63 @ 150mA, 2V | 
| Power - Max | 20 W | 30 W | 
| Frequency - Transition | - | 3MHz | 
| Operating Temperature | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | 
| Supplier Device Package | TO-126 | TO-126 |