DTC114YUA-HF

Overview

The DTC114YUA-HF is a single NPN digital transistor manufactured by Comchip Technology, designed for surface-mount applications in the SOT-323-3 package. It integrates built-in biasing resistors to simplify circuit design and reduce component count. Key electrical specifications include a collector-emitter voltage (VCEO) of 50 V, a continuous collector current of 100 mA, and a power dissipation rating of 200 mW. The device features a typical input resistance (R1) of 10 kOhms and an emitter-base resistance (R2) of 47 kOhms. It operates within a temperature range of -55°C to +150°C and complies with RoHS standards.

Feature Summary

• Integrates built-in biasing resistors to minimize external components and PCB space.
• Utilizes epitaxial planar die construction for reliable performance.
• Designed for high-speed switching applications with low saturation voltage.

Applications

• General-purpose switching circuits
• Driver circuits for relays and solenoids
• Logic level translation interfaces

Procurement Notes

Verify the specific suffix 'HF' indicates halogen-free compliance when sourcing. Confirm the manufacturer is Comchip Technology, as similar part numbers exist from other vendors like ROHM or JCET with different internal structures. Ensure the SOT-323-3 footprint matches the target PCB layout before procurement.

Selection Notes

Select this component for designs requiring a compact NPN digital transistor with a 10k/47k resistor ratio. Compare against alternatives based on the required hFE gain and maximum operating frequency. Verify that the 200 mW power dissipation rating meets the thermal requirements of the intended application environment.

Part Context

This component belongs to the family of pre-biased digital transistors offered by Comchip Technology. These devices combine a single bipolar junction transistor with internal resistors to replace multiple discrete components. The DTC114YUA-HF specifically addresses the need for simplified driver stages in consumer electronics and industrial control systems where board space is limited.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official cross-reference guides from Comchip Technology or verify pinout compatibility with equivalent parts from other manufacturers such as ROHM or Onsemi before substitution.