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| Part Number | BD436G | BD439G | BD437G | BD436S | BD436T | BD436TG | BD438G | BD435G | BD436 | 
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | onsemi | onsemi | onsemi | Fairchild Semiconductor | onsemi | onsemi | onsemi | onsemi | STMicroelectronics | 
| Product Status | Active | Active | Active | Active | Obsolete | Obsolete | Active | Obsolete | Obsolete | 
| Transistor Type | - | NPN | NPN | PNP | PNP | PNP | PNP | NPN | PNP | 
| Current - Collector (Ic) (Max) | - | 4 A | 4 A | 4 A | 4 A | 4 A | 4 A | 4 A | 4 A | 
| Voltage - Collector Emitter Breakdown (Max) | - | 60 V | 45 V | 32 V | 32 V | 32 V | 45 V | 32 V | 32 V | 
| Vce Saturation (Max) @ Ib, Ic | - | 800mV @ 300mA, 3A | 800mV @ 300mA, 3A | 500mV @ 200mA, 2A | 500mV @ 200mA, 2A | 500mV @ 200mA, 2A | 700mV @ 300mA, 3A | 500mV @ 200mA, 2A | 500mV @ 200mA, 2A | 
| Current - Collector Cutoff (Max) | - | 100µA (ICBO) | 100µA (ICBO) | 100µA | 100µA (ICBO) | 100µA (ICBO) | 100µA (ICBO) | 100µA (ICBO) | 100µA | 
| DC Current Gain (hFE) (Min) @ Ic, Vce | - | 40 @ 500mA, 1V | 85 @ 500mA, 1V | 40 @ 10mA, 5V | 85 @ 500mA, 1V | 85 @ 500mA, 1V | 85 @ 500mA, 1V | 85 @ 500mA, 1V | 40 @ 10mA, 5V | 
| Power - Max | - | 36 W | 36 W | 36 W | 36 W | 36 W | 36 W | 36 W | 36 W | 
| Frequency - Transition | - | 3MHz | 3MHz | 3MHz | 3MHz | 3MHz | 3MHz | 3MHz | 3MHz | 
| Operating Temperature | - | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | 150°C (TJ) | 
| Mounting Type | - | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | 
| Package / Case | - | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | 
| Supplier Device Package | - | TO-126 | TO-126 | TO-126-3 | TO-126 | TO-126 | TO-126 | TO-126 | SOT-32-3 |