| Part Number | BD437G | BD438G | 
|---|---|---|
| Manufacturer | onsemi | onsemi | 
| Category | Transistors - Bipolar (BJT) - Single | Transistors - Bipolar (BJT) - Single | 
|   |   | |
| Product Status | Active | Active | 
| Transistor Type | NPN | PNP | 
| Current - Collector (Ic) (Max) | 4 A | 4 A | 
| Voltage - Collector Emitter Breakdown (Max) | 45 V | 45 V | 
| Vce Saturation (Max) @ Ib, Ic | 800mV @ 300mA, 3A | 700mV @ 300mA, 3A | 
| Current - Collector Cutoff (Max) | 100µA (ICBO) | 100µA (ICBO) | 
| DC Current Gain (hFE) (Min) @ Ic, Vce | 85 @ 500mA, 1V | 85 @ 500mA, 1V | 
| Power - Max | 36 W | 36 W | 
| Frequency - Transition | 3MHz | 3MHz | 
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°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 |