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| Part Number | MMBT6521LT1G | MMBT6520LT1G | MMBT6521LT1 | 
|---|---|---|---|
| Manufacturer | onsemi | onsemi | onsemi | 
| Product Status | Active | Active | Obsolete | 
| Transistor Type | NPN | PNP | NPN | 
| Current - Collector (Ic) (Max) | 100 mA | 500 mA | 100 mA | 
| Voltage - Collector Emitter Breakdown (Max) | 25 V | 350 V | 25 V | 
| Vce Saturation (Max) @ Ib, Ic | 500mV @ 5mA, 50mA | 1V @ 5mA, 50mA | 500mV @ 5mA, 50mA | 
| Current - Collector Cutoff (Max) | 500nA (ICBO) | 50nA (ICBO) | 500nA (ICBO) | 
| DC Current Gain (hFE) (Min) @ Ic, Vce | 300 @ 2mA, 10V | 20 @ 50mA, 10V | 300 @ 2mA, 10V | 
| Power - Max | 225 mW | 225 mW | 225 mW | 
| Frequency - Transition | - | 200MHz | - | 
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | 
| Supplier Device Package | SOT-23-3 (TO-236) | SOT-23-3 (TO-236) | SOT-23-3 (TO-236) |