DTC123EEBTL

Overview

The DTC123EEBTL is an NPN digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors in a compact SOT-416FL (EMT3F) surface-mount package. It operates with a maximum collector-emitter voltage of 50 V and a continuous collector current of 100 mA. The device includes integrated resistors R1 and R2, both typically valued at 2.2 kΩ, configured for potential divider input. Key electrical characteristics include a minimum DC current gain (hFE) of 20 at 20 mA and 5 V, a transition frequency of 250 MHz, and a power dissipation rating of 150 mW. The component supports a maximum operating temperature of +150°C and complies with RoHS standards.

Feature Summary

• Integrates dual bias resistors to eliminate external resistor requirements for basic switching circuits
• Provides high-speed switching capability with a 250 MHz transition frequency
• Utilizes a compact EMT3F surface-mount package for space-constrained PCB layouts

Applications

• General-purpose signal inversion and buffering in consumer electronics
• Interface circuits between microcontrollers and peripheral devices
• Level shifting applications in low-voltage logic systems

Procurement Notes

Verify the specific ordering suffix EE3 or EEB against the required datasheet revision, as packaging and minor mechanical tolerances may vary. Confirm RoHS compliance status directly with the manufacturer's latest documentation before integration. Ensure the selected variant matches the intended thermal management requirements given the small form factor. Cross-reference the part number with authorized distributors to confirm availability and authenticity.

Selection Notes

Select this component when a single NPN switch with fixed 2.2 kΩ base and emitter resistors is required. Compare hFE minimums and saturation voltages against load requirements to ensure adequate drive capability. Consider the SOT-416FL footprint compatibility during PCB layout design. Evaluate thermal dissipation limits if operating near maximum current thresholds in enclosed environments.

Part Context

This part belongs to ROHM's standard Digital Transistor series, which integrates bias resistors to simplify circuit design. The DTC123EETL is a closely related variant often used interchangeably depending on packaging preferences. The family is designed for general-purpose switching rather than automotive applications, as indicated by manufacturer guidelines. It serves as a direct replacement for discrete resistor-transistor combinations in logic interfaces.

Replacement Considerations

The DTC123EE3TL is a confirmed substitute with identical electrical specifications but potentially different packaging details. Verify pinout compatibility and physical dimensions before substitution. Other variants in the DTC123 series may offer different resistance ratios or polarity options.