| Part Number | FMMT491ATC | FMMT493ATC | 
|---|---|---|
| Manufacturer | Diodes Incorporated | Diodes Incorporated | 
| Category | Transistors - Bipolar (BJT) - Single | Transistors - Bipolar (BJT) - Single | 
|   |   | |
| Product Status | Active | Obsolete | 
| Transistor Type | NPN | NPN | 
| Current - Collector (Ic) (Max) | 1 A | 1 A | 
| Voltage - Collector Emitter Breakdown (Max) | 40 V | 60 V | 
| Vce Saturation (Max) @ Ib, Ic | 500mV @ 100mA, 1A | 500mV @ 100mA, 1A | 
| Current - Collector Cutoff (Max) | 100nA | 100nA | 
| DC Current Gain (hFE) (Min) @ Ic, Vce | 300 @ 500mA, 5V | 300 @ 250mA, 10V | 
| Power - Max | 500 mW | 500 mW | 
| Frequency - Transition | 150MHz | 150MHz | 
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | 
| Supplier Device Package | SOT-23-3 | SOT-23-3 |