DTC123EETL

Overview

The DTC123EETL is a pre-biased NPN digital transistor manufactured by ROHM Semiconductor, housed in an EMT3 (SOT-416) surface-mount package. It integrates bias resistors R1 and R2, both typically rated at 2.2 kΩ, to simplify circuit design by eliminating external components. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 50 V, a continuous collector current (IC) of 100 mA, and a power dissipation (PD) of 150 mW. The device features a minimum DC current gain (hFE) of 20 at IC=20mA and VCE=5V, with a transition frequency (fT) of 250 MHz. It operates within a storage temperature range of -55°C to +150°C.

Feature Summary

• Integrates built-in bias resistors (R1=R2=2.2kΩ) to enable simple on/off switching without external input resistors.
• Compact SMD/SMT form factor in the EMT3 (SOT-416) package for space-constrained designs.
• High-speed switching capability supported by a 250 MHz transition frequency.

Applications

• General-purpose logic level shifting and signal inversion circuits.
• Driver circuits for small-signal loads requiring compact integration.
• Switching applications in consumer electronics and industrial control systems.

Procurement Notes

Verify the specific ordering suffix 'TL' corresponds to the tape-and-reel packaging format containing 3000 units per reel. Confirm RoHS compliance status through the official datasheet or manufacturer certification documents prior to procurement. Ensure the supplier provides valid traceability documentation for the semiconductor batch.

Selection Notes

Select this component when an NPN configuration with equal internal bias resistors (R1=R2) is required. Compare against the DTA123EETL if a PNP polarity is needed instead. Verify that the 50V VCEO and 100mA IC ratings sufficiently exceed the application's peak operating conditions to ensure reliable performance under thermal stress.

Part Context

This part belongs to the DTC123 series of digital transistors from ROHM Semiconductor. It is functionally complementary to the DTA123EETL (PNP version). The 'EETL' designation indicates the EMT3 package type and tape-and-reel shipping method. It serves as a standard discrete solution for replacing multiple discrete resistors and transistors in switching logic.

Replacement Considerations

Publicly confirmed direct substitutes include the DTA123EETL for PNP polarity requirements. Other compatible alternatives within the same family may include variants with different resistor ratios or packages, such as the DTC123YE3TL, provided pinout and electrical ratings are verified against the original design constraints.