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| Part Number | BD537 | BD538 | BD537J | BD537K | BD437 | BD533 | BD534 | BD535 | BD536 |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | onsemi | onsemi | onsemi | STMicroelectronics | STMicroelectronics | Harris Corporation | Harris Corporation | STMicroelectronics |
| Product Status | Obsolete | Active | Obsolete | Obsolete | Not For New Designs | Obsolete | Obsolete | Obsolete | Obsolete |
| Transistor Type | NPN | - | NPN | NPN | NPN | NPN | PNP | NPN | PNP |
| Current - Collector (Ic) (Max) | 8 A | - | 8 A | 8 A | 4 A | 8 A | 8 A | 8 A | 8 A |
| Voltage - Collector Emitter Breakdown (Max) | 80 V | - | 80 V | 80 V | 45 V | 45 V | 45 V | 60 V | 60 V |
| Vce Saturation (Max) @ Ib, Ic | 800mV @ 600mA, 6A | - | 800mV @ 200mA, 2A | 800mV @ 200mA, 2A | 600mV @ 200mA, 2A | 800mV @ 600mA, 6A | 800mV @ 600mA, 6A | 800mV @ 600mA, 6A | 800mV @ 600mA, 6A |
| Current - Collector Cutoff (Max) | 100µA | - | 100µA | 100µA | 100µA | 100µA | 100µA | 100µA | 100µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 15 @ 2A, 2V | - | 30 @ 2A, 2V | 40 @ 2A, 2V | 30 @ 10mA, 5V | 25 @ 2A, 2V | 25 @ 2A, 2V | 25 @ 2A, 2V | 25 @ 2A, 2V |
| Power - Max | 50 W | - | 50 W | 50 W | 36 W | 50 W | 50 W | 50 W | 50 W |
| Frequency - Transition | - | - | 12MHz | 12MHz | 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) |
| Mounting Type | Through Hole | - | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | TO-220-3 | - | TO-220-3 | TO-220-3 | TO-225AA, TO-126-3 | TO-220-3 | TO-220-3 | TO-220-3 | TO-220-3 |
| Supplier Device Package | TO-220 | - | TO-220-3 | TO-220-3 | SOT-32-3 | TO-220 | TO-220AB | TO-220AB | TO-220 |