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| Part Number | BD438S | BD439S | BD433S | BD434S | BD435S | BD436S | BD437S | BD438 | BD438G |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | onsemi | Fairchild Semiconductor | onsemi | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor | STMicroelectronics | onsemi |
| Product Status | Active | Obsolete | Active | Obsolete | Active | Active | Active | Active | Active |
| Transistor Type | PNP | NPN | NPN | PNP | NPN | PNP | NPN | PNP | PNP |
| Current - Collector (Ic) (Max) | 4 A | 4 A | 4 A | 4 A | 4 A | 4 A | 4 A | 4 A | 4 A |
| Voltage - Collector Emitter Breakdown (Max) | 45 V | 60 V | 22 V | 22 V | 32 V | 32 V | 45 V | 45 V | 45 V |
| Vce Saturation (Max) @ Ib, Ic | 600mV @ 200mA, 2A | 800mV @ 200mA, 2A | 500mV @ 200mA, 2A | 500mV @ 200mA, 2A | 500mV @ 200mA, 2A | 500mV @ 200mA, 2A | 600mV @ 200mA, 2A | 600mV @ 200mA, 2A | 700mV @ 300mA, 3A |
| Current - Collector Cutoff (Max) | 100µA | 100µA (ICBO) | 100µA | 100µA | 100µA | 100µA | 100µA | 100µA | 100µA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 30 @ 10mA, 5V | 20 @ 10mA, 5V | 40 @ 10mA, 5V | 40 @ 10mA, 5V | 40 @ 10mA, 5V | 40 @ 10mA, 5V | 30 @ 10mA, 5V | 30 @ 10mA, 5V | 85 @ 500mA, 1V |
| Power - Max | 36 W | 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 | 3MHz |
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Through Hole | 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 | TO-225AA, TO-126-3 |
| Supplier Device Package | TO-126-3 | TO-126-3 | TO-126-3 | TO-126-3 | TO-126-3 | TO-126-3 | TO-126-3 | SOT-32-3 | TO-126 |
