DTA114WU3T106

Overview

The DTA114WU3T106 is a PNP bias resistor built-in transistor manufactured by ROHM Semiconductor. It integrates a single NPN structure within an SOT-323-3 (UMT3) surface-mount package. Key electrical parameters include a collector-emitter voltage 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 with a resistor ratio of 0.47. It operates up to a maximum frequency of 250 MHz and supports junction temperatures up to +150°C.

Feature Summary

• Integrates bias resistors directly with the transistor to simplify circuit design and reduce component count.
• Utilizes leak absorption type architecture to minimize leakage current variations.
• Provides high-density packaging in a compact SOT-323-3 form factor for space-constrained applications.

Applications

• Inverter circuits
• Interface drivers
• General-purpose digital switching

Procurement Notes

Verify the specific suffix T106 to confirm the tape-and-reel packaging quantity of 3000 units per reel. Ensure compatibility with SMD/SMT assembly processes requiring standard reflow soldering profiles. Confirm RoHS compliance status through the manufacturer's official documentation before finalizing procurement specifications.

Selection Notes

Select this component when a PNP digital transistor with a 10 kOhm base resistor is required. The 0.47 resistor ratio distinguishes it from equal-resistance variants. Verify that the -50V collector-emitter voltage rating meets the system's supply requirements. Consider the SOT-323-3 package dimensions for PCB layout constraints.

Part Context

This part belongs to the DTA114 series of PNP bias resistor built-in transistors. It shares the same functional family as the DTC114WU3T106 but utilizes PNP polarity instead of NPN. The U3 suffix indicates the SOT-323-3 package type, while T106 denotes the specific taping configuration.

Replacement Considerations

DTA114WU3 is the base part number without the specific taping suffix. DTA114WETL is an alternative in the EMT3 package, though it is marked as not recommended for new designs. Verify pinout and electrical characteristics against datasheets before substitution.