DTD143ECT216

Overview

The DTD143ECT216 is a single NPN digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors. It operates with a supply voltage of 50V and supports a continuous collector current of 500mA. The device utilizes an SST3 (SOT-23) surface-mount package. Key electrical parameters include a DC current gain (hFE) minimum of 47 at 50mA/5V, a transition frequency of 200MHz, and a power dissipation rating of 200mW. The internal circuit consists of thin-film resistors R1 and R2, both typically valued at 4.7kΩ.

Feature Summary

• Built-in bias resistors allow inverter circuit configuration without external input components.
• Thin-film resistor construction provides complete isolation for negative input biasing.
• Design simplifies operation by requiring only on/off condition settings.

Applications

• Inverter circuits
• Interface applications
• Driver circuits

Procurement Notes

Verify the specific ordering suffix to confirm the packaging format, as the T216 designation indicates a particular reel or tape specification distinct from standard T116 or T146 variants. Confirm RoHS compliance status and ensure the supplier documentation matches the exact part number before finalizing procurement orders.

Selection Notes

Select this component when a compact NPN solution with integrated biasing is required for switching applications. Ensure the design accommodates the 200mW power dissipation limit and verify that the 4.7kΩ internal resistance values align with the target logic interface requirements.

Part Context

This component belongs to the DTD143EK series of 500mA / 50V digital transistors. The 'EC' portion of the identifier denotes the specific SMT3/SST3 package type, while the suffix defines the taping quantity and method. It serves as a pre-biased alternative to discrete resistor-transistor networks.

Replacement Considerations

Direct substitutes within the same family include DTD143ECT116 and DTD143EKT146. Verify that any replacement maintains the identical SST3 package footprint and the same 4.7kΩ internal resistor ratio to ensure circuit compatibility.