This datasheet introduces the features and characteristics of the DTC124E series NPN 100mA 50V Digital Transistors (Bias Resistor Built-in Transistors). The series features built-in bias resistors, eliminating the need to connect external input resistors to configure a logic inverter circuit. The internal resistors are isolated thin-film resistors that allow negative biasing of the input and completely eliminate parasitic effects. The series requires only the setting of on/off conditions to operate, simplifying circuit design. The series' complementary PNP types are DTA124E series, complex transistors are EMH1 / UMH1N / IMH1A / UMH5N / IMH5A. The series meets the RoHS standard. This datasheet also provides information on application, packaging specifications, and part numbers.
The DTC124E series are NPN digital transistors with a built‑in 22 kΩ bias resistor, allowing inverter circuits without external resistors. The series includes several package types (SOT‑70, SOT‑75, SOT‑85, etc.) and is RoHS compliant.
The document provides absolute maximum ratings, electrical characteristics, dimension drawings for each package, and packaging specifications. It also includes a notice on usage limits and export regulations.
| Supply voltage (Voc) | 50 V |
|---|---|
| Input voltage range (Vin) | -10 to +40 V |
| Maximum collector current (Ic max) | 100 mA |
| Output current (Io) | 30 mA |
| Junction temperature (Tj) | 150 °C |
| Resistance ratio (R2/Ry) | 1 |
The maximum supply voltage is 50 V.
The maximum collector current is 100 mA.