The DTA124E series PNP -100mA -50V Digital Transistors have built-in bias resistors that enable the configuration of an inverter circuit without connecting external input resistors. The resistors consist of thin-film resistors with complete isolation to allow negative biasing of the input. They also have the advantage of completely eliminating parasitic effects. Only the on/off conditions need to be set for operation, making the circuit design easy.
The DTA124E series PNP transistors feature built‑in 22 kΩ bias resistors, allowing inverter circuits without external resistors. They are RoHS compliant and offered in multiple surface‑mount packages such as SC‑105AA, SC‑85, SOT‑416, SOT‑346 and SOT‑323.
The datasheet lists absolute maximum ratings, electrical characteristics, characteristic curves and detailed mechanical dimensions for each package variant, helping designers select the appropriate part and ensure reliable operation. This manual is written in Chinese.
| Maximum collector current (IC_MAX) | -100 mA |
|---|---|
| Maximum supply voltage (VCC) | -50 V |
| Input voltage range (VIN) | -40 V to +10 V |
| Built‑in bias resistor value (R1, R2) | 22 kΩ |
| Resistance ratio (R2/R1) | 0.8 – 1.2 |
Each transistor has built‑in bias resistors of 22 kΩ.
The maximum collector current is -100 mA.
The device can operate with a supply voltage up to -50 V.