MUN5140T1G

Overview

The MUN5140T1G is a PNP Bias Resistor Transistor (BRT) from onsemi, integrating a single transistor with a monolithic bias network consisting of a series base resistor and a base-emitter resistor. It operates within a collector-emitter voltage range of 50 Vdc and supports a continuous collector current of 100 mAdc. The device features a typical DC current gain of 250 at 5.0 mA and includes an input resistor of 47 kOhms. Packaged in the SC-70/SOT-323 form factor, it functions across a junction temperature range of -55°C to +150°C.

Feature Summary

• Integrates a single PNP transistor with a monolithic bias network comprising two resistors to replace discrete components.
• Designed to simplify circuit design by reducing board space and component count.
• Compliant with RoHS standards and free from lead, halogens, and brominated flame retardants.

Applications

• Replacing single devices and external resistor bias networks in digital logic circuits.
• Space-constrained applications requiring reduced component count and simplified layout.
• Automotive and industrial applications requiring unique site and control change requirements.

Procurement Notes

Verify the specific ordering suffix and package type against the manufacturer's official documentation before procurement. Confirm that the requested part matches the required electrical characteristics and thermal performance for the intended operating environment. Ensure compliance with environmental regulations such as RoHS if applicable to the final assembly process.

Selection Notes

Select this component when a compact solution is needed to drive PNP loads without external biasing resistors. Consider the SC-70/SOT-323 package dimensions for PCB layout constraints. Evaluate the thermal dissipation capabilities relative to the ambient temperature and copper trace area to ensure operation within the specified junction temperature limits.

Part Context

This component belongs to the DTA144T/D family of Digital Transistors, which also includes variants like MUN2140T1G and DTA144TE. These devices share similar internal architectures but differ in packaging options such as SC-59, SOT-23, and SOT-723. The MUN5140T1G specifically utilizes the SC-70/SOT-323 package for surface mount applications.

Replacement Considerations

Direct substitutes include other members of the DTA144T family such as MUN2140T1G or DTA144TE, provided the package type and pinout are compatible. Verify that alternative packages maintain the same electrical parameters and thermal characteristics for the specific application requirements.