MUN2141T1G

Overview

The MUN2141T1G is a PNP Digital Transistor manufactured by onsemi, belonging to the MUN2141 series. It integrates a single transistor with a monolithic bias network consisting of two resistors: a series base resistor and a base-emitter resistor. This configuration replaces discrete components to reduce board space and system cost. The device features a maximum collector-emitter voltage of 50 V and a continuous collector current of 100 mA. It is housed in an SC-59 (SOT-23) surface-mount package with three pins. The unit weighs approximately 11.030 mg.

Feature Summary

• Integrates a PNP transistor with a monolithic bias resistor network to simplify circuit design
• Reduces component count and board space by eliminating external biasing resistors
• Designed for surface-mount applications in compact electronic systems

Applications

• General-purpose switching circuits requiring pre-biased PNP transistors
• Logic interface applications where level shifting or buffering is needed
• Power management circuits utilizing low-current switching elements

Procurement Notes

Verify end-of-life status before procurement as the manufacturer has issued discontinuance notifications. Confirm availability through authorized distributors, noting that supply may be restricted or limited. Ensure compliance with RoHS standards and check for specific automotive qualification requirements if applicable to the target application environment.

Selection Notes

Select this component when a PNP digital transistor with integrated biasing is required in an SC-59 package. Verify that the 50 V collector-emitter voltage and 100 mA current ratings meet the circuit demands. Consider the internal resistor values specified in the official datasheet to ensure proper logic compatibility and drive characteristics for the intended load conditions.

Part Context

The MUN2141T1G is part of onsemi's broader family of Bias Resistor Transistors (BRTs). These devices are engineered to replace individual transistors and their associated external resistor networks. The series offers various configurations with different resistor ratios to suit diverse logic interface needs while maintaining a consistent small-footprint package format for modern electronics manufacturing.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative BRTs from other manufacturers only after verifying pinout compatibility, electrical parameter equivalence, and package dimensions against the original specifications.