SMUN5215T1G

Overview

The SMUN5215T1G is a Bias Resistor Transistor (BRT) manufactured by onsemi, featuring dual NPN transistors integrated with monolithic bias resistor networks. Housed in the SOT-363 surface-mount package, it provides two independent NPN devices within a single component. Key electrical parameters include a maximum collector-emitter voltage of 50 Vdc and a continuous collector current of 100 mA. The device operates within a temperature range of -55°C to +150°C, with a power dissipation rating of 256 mW.

Feature Summary

• Integrates two NPN transistors with built-in series base and base-emitter resistors into a single compact package.
• Designed to replace individual discrete transistors and external resistor networks, reducing board space and component count.
• Supports simplified circuit design through pre-biased configuration suitable for low-power surface mount applications.

Applications

• General-purpose switching circuits requiring compact form factors
• Interface logic level translation where space is limited
• Low-power digital signal processing input buffering

Procurement Notes

Verify the specific suffix T1G against the manufacturer's latest datasheet to confirm packaging details and compliance status. Ensure the ordering part number matches the required pinout and electrical characteristics for the target application. Cross-reference with official distributor catalogs to validate availability and authenticity before procurement.

Selection Notes

Select this component when dual NPN switching functionality is required in a minimal footprint. Compare the integrated resistor values against discrete designs to ensure proper biasing without external components. Verify that the 50V voltage rating and 100mA current capacity meet the circuit requirements under all operating conditions.

Part Context

This component belongs to the MUN5215 series of digital transistors from onsemi. It is part of a family of Bias Resistor Transistors designed to simplify analog and digital circuit layouts by integrating passive biasing elements directly with the active semiconductor device.

Replacement Considerations

Compatible substitutes include other dual NPN BRTs in SOT-363 packages with matching 50V ratings and similar internal resistor ratios. Verify pin compatibility and thermal performance when substituting with equivalent parts from other manufacturers.