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| Part Number | BC637G | BC638G | BC639G | BC637 |
|---|---|---|---|---|
| Manufacturer | onsemi | onsemi | onsemi | Fairchild Semiconductor |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete |
| Transistor Type | NPN | PNP | NPN | NPN |
| Current - Collector (Ic) (Max) | 1 A | 500 mA | 1 A | 1 A |
| Voltage - Collector Emitter Breakdown (Max) | 60 V | 60 V | 80 V | 60 V |
| Vce Saturation (Max) @ Ib, Ic | 500mV @ 50mA, 500mA | 500mV @ 50mA, 500mA | 500mV @ 50mA, 500mA | 500mV @ 50mA, 500mA |
| Current - Collector Cutoff (Max) | 100nA (ICBO) | 100nA (ICBO) | 100nA (ICBO) | 100nA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 40 @ 150mA, 2V | 40 @ 150mA, 2V | 40 @ 150mA, 2V | 40 @ 150mA, 2V |
| Power - Max | 625 mW | 625 mW | 625 mW | 625 mW |
| Frequency - Transition | 200MHz | 150MHz | 200MHz | 200MHz |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | TO-226-3, TO-92-3 Long Body | TO-226-3, TO-92-3 Long Body | TO-226-3, TO-92-3 Long Body | TO-226-3, TO-92-3 (TO-226AA) Formed Leads |
| Supplier Device Package | TO-92 (TO-226) | TO-92 (TO-226) | TO-92 (TO-226) | TO-92 (TO-226) |
