MUN2114T1

Overview

The MUN2114T1 is a PNP Bias Resistor Transistor (BRT) from the onsemi MUN2111T1 series, housed in an SC-59 surface-mount package. It integrates a single PNP silicon transistor with a monolithic bias network consisting of two resistors: a series base resistor (R1) and a base-emitter resistor (R2). The device features a maximum collector-emitter voltage of 50 Vdc and a continuous collector current rating of 100 mAdc. For this specific part number, the internal resistor values are R1 = 10 kΩ and R2 = 47 kΩ. It is designed to replace discrete transistor and resistor networks, simplifying circuit design while reducing board space.

Feature Summary

• Integrates a PNP transistor with a monolithic bias network containing a series base resistor and a base-emitter resistor.
• Designed to eliminate individual external components, thereby reducing system cost and printed circuit board area.
• SC-59 package utilizes modified gull-winged leads to absorb thermal stress during wave or reflow soldering processes.

Applications

• Low power surface mount applications where board space is limited.
• Circuit designs requiring simplified biasing networks for PNP transistors.
• Systems aiming to reduce component count by replacing discrete resistor-transistor combinations.

Procurement Notes

Verify the specific ordering suffix T1 corresponds to the 3000-unit tape and reel shipping configuration as documented in the manufacturer's ordering information. Confirm that the device marking code 6D matches the required inventory identification. Ensure compliance with RoHS standards and lead-free specifications if required by the target assembly process. Check for any automotive-specific prefixes if AEC-Q101 qualification is necessary for the application environment.

Selection Notes

Select the MUN2114T1 when a PNP BRT with a 10 kΩ series base resistor and a 47 kΩ base-emitter resistor is required. This specific resistor ratio distinguishes it from other members of the MUN2111T1 series, such as the MUN2111T1 which uses equal 10 kΩ resistors. Ensure the 50 V collector-emitter voltage and 100 mA current ratings meet the circuit requirements. Consider the SC-59 package dimensions for footprint compatibility during the layout phase.

Part Context

The MUN2114T1 belongs to the onsemi MUN2111T1 Series of PNP Bias Resistor Transistors. This series includes various configurations with different internal resistor ratios, all sharing the same SC-59 package and fundamental electrical ratings. The series is categorized under digital transistors intended to simplify the design of switching circuits by integrating the biasing network directly onto the semiconductor die alongside the transistor element.

Replacement Considerations

Public confirmed substitute part numbers include the MMUN2114LT1G and the MUN5214T1. These devices share the same PNP polarity, SC-59 package, and integrated bias resistor topology within the same product family.