DTC143ESA-BP

Overview

The DTC143ESA-BP is an NPN digital transistor manufactured by Micro Commercial Components (MCC). It integrates a single transistor with a monolithic bias network consisting of two resistors, R1 and R2. The device features a built-in biasing resistor ratio of 1.0, with typical resistance values of 4.7 kΩ for both R1 and R2. Key electrical parameters include a maximum collector current of 100 mA, power dissipation of 300 mW, and a transition frequency of 250 MHz. It operates within a supply voltage range up to 50 V and is housed in a TO-92S package.

Feature Summary

• Integrates a single NPN transistor with a monolithic bias network containing series base and base-emitter resistors.
• Features a built-in biasing resistor ratio of 1.0, eliminating the need for external discrete components.
• Constructed using epitaxial planar die technology for reliable performance.
• Epoxy material meets UL 94 V-0 flammability rating.

Applications

• General-purpose switching applications
• Driver circuits for relays and solenoids
• Logic level translation interfaces

Procurement Notes

Verify authenticity by purchasing directly from Micro Commercial Components or authorized distributors. MCC maintains strict traceability standards for genuine parts. Avoid unauthorized sources due to counterfeiting risks. Confirm the -BP suffix indicates bulk packaging containing 100,000 pieces per carton. Ensure compliance with RoHS requirements if applicable.

Selection Notes

Select this component when a compact solution for NPN switching with integrated biasing is required. The TO-92S package suits through-hole mounting. Consider the 100 mA collector current limit and 300 mW power dissipation for thermal management. The 1:1 resistor ratio defines the specific input-output characteristics suitable for standard logic interfacing.

Part Context

This part belongs to the DTC143 series of NPN digital transistors. Variants such as DTC143TM-TP and DTC143ECA-TP offer similar functionality but differ in package type, such as SOT-23 or SC-59, and manufacturing suffixes indicating specific packaging or compliance attributes like halogen-free status.

Replacement Considerations

Direct substitutes include other NPN digital transistors with a 1:1 bias ratio and comparable current ratings, such as the DTC143ZUA-TP or DTC143XUA-TP. Verify pinout compatibility and package dimensions before substitution.

FAQ

What is the function of the internal resistors in the DTC143ESA?

The internal resistors form a bias network that simplifies circuit design by allowing direct connection to logic outputs without external components.

What does the -BP suffix indicate for this part number?

The -BP suffix denotes that the device is supplied in bulk packaging, specifically 100,000 pieces per carton.

Is the DTC143ESA available in a halogen-free version?

Yes, a halogen-free version is available upon request by adding the '-HF' suffix to the part number.