SMUN2114T1G

Overview

The SMUN2114T1G is a PNP Bias Resistor Transistor (BRT) from onsemi, integrating a single transistor with a monolithic bias network consisting of a series base resistor (R1) and a base-emitter resistor (R2). It is housed in an SC-59 (SOT-23) package. Key electrical parameters include a collector-emitter voltage (VCEO) of 50 Vdc, continuous collector current (IC) of 100 mAdc, and input forward voltage of 40 Vdc. The typical internal resistors are R1 = 10 kOhms and R2 = 47 kOhms, yielding a ratio of 0.21. It operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• Integrates a single PNP transistor with a monolithic bias network comprising two resistors to replace discrete components.
• Designed to simplify circuit design by reducing board space and component count.
• Available with S and NSV prefixes for automotive applications requiring unique site and control change requirements.

Applications

• Automotive systems requiring AEC-Q101 qualification and PPAP capability.
• General-purpose digital switching circuits where simplified biasing is required.
• Applications necessitating reduced board space and component count through integrated bias networks.

Procurement Notes

Verify the specific ordering suffix and marking code against the manufacturer's official documentation before procurement. Confirm that the SC-59 package variant matches the intended PCB footprint. Ensure compliance with RoHS and halogen-free requirements if specified for the target application environment.

Selection Notes

Select this component when a PNP digital transistor with a 10 kOhm base resistor and 47 kOhemitter resistor is required. Consider the SC-59 package dimensions and thermal characteristics relative to available board space. Verify that the 50 V collector-emitter voltage rating meets the maximum operating voltage of the circuit.

Part Context

The SMUN2114T1G belongs to the MUN2114 series of digital transistors manufactured by onsemi. This series includes various packages such as SOT-23, SC-70/SOT-323, and SC-75, all sharing similar electrical characteristics but differing in physical form factors. The 'S' prefix indicates a specific manufacturing site or configuration within the product line.

Replacement Considerations

Direct replacements include MMUN2114LT1G (SOT-23 package) and MUN5114T1G (SC-70/SOT-323 package), provided pinout compatibility and package dimensions are verified. Cross-reference with other manufacturers' DTA114Y equivalents only after confirming electrical parameter alignment and pin configuration.