DTC143ESA-AP

Overview

The DTC143ESA-AP is an NPN digital transistor manufactured by Micro Commercial Components (MCC). It integrates a single bipolar junction transistor with built-in biasing resistors in a TO-92S package. The device features a maximum collector current of 100 mA and a supply voltage rating of 50 V. Electrical specifications include a DC current gain of 20, an input resistance of 4.7 kΩ, and a transition frequency of 250 MHz. The component operates within a junction temperature range up to 150°C and supports storage temperatures from -55°C to 150°C.

Feature Summary

• Integrates a single NPN transistor with built-in biasing resistors for simplified circuit design.
• Utilizes epitaxial planar die construction for reliable performance.
• Complies with RoHS standards and meets UL 94 V-0 flammability ratings.

Applications

• General-purpose switching applications requiring integrated biasing.
• Driver circuits for low-power loads such as LEDs or relays.
• Logic interface circuits between microcontrollers and peripheral devices.

Procurement Notes

Verify the authenticity of the DTC143ESA-AP through authorized MCC distributors to avoid counterfeit components. Confirm that the ordering suffix matches the required packaging type, such as AP for ammo packing. Ensure compliance with specific environmental requirements, noting that halogen-free versions require a distinct suffix designation.

Selection Notes

Select the DTC143ESA-AP when a compact NPN digital solution with a TO-92S package is required. Consider the 4.7 kΩ input resistance and 1:1 resistor ratio for standard logic interfacing. Evaluate the 100 mA collector current limit against load requirements. Verify thermal management needs given the 300 mW power dissipation capability at ambient conditions.

Part Context

The DTC143ESA belongs to the DTC143 series of NPN digital transistors produced by Micro Commercial Components. This series is designed to replace discrete resistor-transistor networks, reducing board space and assembly costs. The TO-92S variant offers a compact footprint suitable for through-hole mounting in consumer electronics and industrial control modules.

Replacement Considerations

Direct pin-compatible replacements may include other NPN digital transistors with similar bias ratios and voltage ratings. Verify electrical parameters such as Vceo, Ic, and R1/R2 ratios before substitution. Consult manufacturer cross-reference lists for confirmed equivalent part numbers.