MUN5311DW1T1

Overview

The MUN5311DW1T1 is a dual Bias Resistor Transistor (BRT) containing one NPN and one PNP silicon surface mount transistor with a monolithic bias resistor network. It integrates a series base resistor and a base-emitter resistor to replace external components. The device operates within a collector-emitter voltage of 50 Vdc and a continuous collector current of 100 mAdc. Typical internal resistors are R1 = 10 kOhms and R2 = 10 kOhms. It is housed in an SOT-363 package with a maximum power dissipation of 187 mW at 25°C for one junction heated, and functions across a temperature range of -55°C to +150°C.

Feature Summary

• Integrates complementary NPN and PNP transistors with built-in bias networks into a single compact package
• Eliminates the need for discrete external resistors, reducing component count and board space requirements
• Designed for low-power surface mount applications where minimizing footprint is critical

Applications

• Low power surface mount circuit designs requiring space optimization
• Digital switching applications utilizing integrated biasing
• Complementary logic interface circuits

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm shipping format and compliance status. Confirm that the requested part number matches the exact electrical characteristics and package type required for the design. Ensure compatibility with RoHS directives if applicable to the target market. Cross-reference datasheet revision numbers to validate parameter accuracy before finalizing procurement orders.

Selection Notes

Select this component when a complementary NPN/PNP pair with fixed bias resistors is needed to simplify circuit topology. Verify that the typical 10 kOhm input resistance values align with the driving source capabilities. Ensure the 50 V collector-emitter voltage rating exceeds the maximum operating voltage. Check thermal dissipation limits relative to the intended PCB pad size and ambient temperature conditions.

Part Context

This component belongs to the MUN5311DW1T1 Series of Dual Bias Resistor Transistors manufactured by onsemi. The series includes various combinations of NPN and PNP devices with different resistor values housed in the SOT-363 package. These devices are categorized as preferred choices for future use, offering optimized value and availability for surface mount designs.

Replacement Considerations

Direct replacement options include other members of the MUN5311DW1T1 series such as MUN5312DW1T1 or MUN5313DW1T1, provided their specific resistor values match the circuit requirements. Verify pinout compatibility within the SOT-363 package before substitution.