SMUN5315DW1T1G

Overview

The SMUN5315DW1T1G is a dual digital transistor from onsemi, featuring one NPN and one PNP pre-biased transistor in a single SOT-363 (SC-88) surface-mount package. It integrates monolithic bias resistor networks to simplify circuit design. Key electrical parameters include a maximum collector-emitter voltage (VCEO) of 50 V for both transistors and a maximum DC collector current (IC) of 100 mA. The device has a total power dissipation rating of 256 mW at 25°C ambient temperature. It is qualified under the AEC-Q100 standard for automotive applications.

Feature Summary

• Integrates complementary NPN and PNP transistors with built-in bias resistors into a compact six-pin package.
• Reduces printed circuit board space requirements by replacing discrete transistor and resistor combinations.
• Simplifies circuit design by eliminating external biasing components.

Applications

• Automotive electronic systems requiring AEC-Q100 qualified components.
• Low-power surface mount applications where board space is limited.
• General-purpose switching and logic interface circuits.

Procurement Notes

Verify the specific suffix DW1T1G against official datasheets to confirm the SOT-363 package and AEC-Q100 qualification status. Confirm that the required resistance values match the internal network specifications for the intended application. Ensure compatibility with surface-mount assembly processes and check for any recent product change notices regarding manufacturing sites or materials.

Selection Notes

Select this component when a complementary pair of NPN and PNP digital transistors is needed in a minimal footprint. Verify that the 50 V voltage rating and 100 mA current capacity meet the circuit requirements. Consider the integrated bias resistor values to ensure proper drive characteristics without external components. Check thermal dissipation limits relative to the operating environment.

Part Context

This part belongs to the MUN5315 series of dual bias resistor transistors manufactured by onsemi. The series is designed for applications requiring small form factors and simplified biasing networks. The SOT-363 package provides a compact solution for integrating two transistors with their respective bias resistors into a single device.

Replacement Considerations

Direct substitutes may include other dual BRTs in SOT-363 packages with matching NPN/PNP configurations and similar electrical ratings. Verify pinout compatibility and internal resistor values before substitution. Cross-reference with other manufacturers' equivalent parts ensuring AEC-Q100 compliance if automotive use is required.