| Part Number | KSP14TA | KSP44TA | 
|---|---|---|
| Manufacturer | Fairchild Semiconductor | onsemi | 
| Category | Transistors - Bipolar (BJT) - Single | Transistors - Bipolar (BJT) - Single | 
|   |   | |
| Product Status | Obsolete | Active | 
| Transistor Type | NPN - Darlington | NPN | 
| Current - Collector (Ic) (Max) | 500 mA | 300 mA | 
| Voltage - Collector Emitter Breakdown (Max) | 30 V | 400 V | 
| Vce Saturation (Max) @ Ib, Ic | 1.5V @ 100µA, 100mA | 750mV @ 5mA, 50mA | 
| Current - Collector Cutoff (Max) | 100nA (ICBO) | 500nA | 
| DC Current Gain (hFE) (Min) @ Ic, Vce | 20000 @ 100mA, 5V | 50 @ 10mA, 10V | 
| Power - Max | 625 mW | 625 mW | 
| Frequency - Transition | 125MHz | - | 
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) Formed Leads | TO-226-3, TO-92-3 (TO-226AA) Formed Leads | 
| Supplier Device Package | TO-92-3 | TO-92-3 |