| Part Number | DDTC124GKA-7-F | DDTC144GKA-7-F | 
|---|---|---|
| Manufacturer | Diodes Incorporated | Diodes Incorporated | 
| Category | Transistors - Bipolar (BJT) - Single, Pre-Biased | Transistors - Bipolar (BJT) - Single, Pre-Biased | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Transistor Type | NPN - Pre-Biased | NPN - Pre-Biased | 
| Current - Collector (Ic) (Max) | 100 mA | 100 mA | 
| Voltage - Collector Emitter Breakdown (Max) | 50 V | 50 V | 
| Resistor - Base (R1) | - | - | 
| Resistor - Emitter Base (R2) | 22 kOhms | 47 kOhms | 
| DC Current Gain (hFE) (Min) @ Ic, Vce | 56 @ 5mA, 5V | 68 @ 5mA, 5V | 
| Vce Saturation (Max) @ Ib, Ic | 300mV @ 500µA, 10mA | 300mV @ 500µA, 10mA | 
| Current - Collector Cutoff (Max) | 500nA (ICBO) | 500nA (ICBO) | 
| Frequency - Transition | 250 MHz | 250 MHz | 
| Power - Max | 200 mW | 200 mW | 
| 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 | SC-59-3 | SC-59-3 |