MMBTRA103SS

Overview

The MMBTRA103SS is a single PNP digital transistor manufactured by Diotec Semiconductor, housed in an SOT-23 (TO-236) surface-mount package. It integrates bias resistors to simplify circuit design and reduce component count. The device features a maximum collector-emitter voltage of -50 V and a continuous collector current of -100 mA, with a total power dissipation rating of 200 mW at 25°C ambient temperature. Internal resistor values are typically 22 kOhms for both R1 and R2. The transition frequency is specified at 200 MHz under standard test conditions.

Feature Summary

• Integrates dual bias resistors to minimize board space and assembly costs
• Designed for commercial and industrial grade applications
• Compliant with RoHS directives without exemptions

Applications

• Digital control circuits
• Signal processing interfaces
• General-purpose switching applications

Procurement Notes

Verify the specific ordering suffix when sourcing this component. Standard versions lack automotive qualification, while suffixes such as -Q indicate AEC-Q101 compliance and -AQ indicates ongoing qualification. Confirm that the supplier provides official datasheets matching the requested grade to ensure reliability standards align with the target application environment.

Selection Notes

Select the MMBTRA103SS when a PNP digital transistor with equal base and emitter resistors is required. The 22 kOhm internal resistance configuration suits applications needing moderate input drive currents. Ensure the operating junction temperature remains within the -55°C to +150°C range and verify that the 200 mW power dissipation limit is not exceeded under thermal constraints.

Part Context

This component belongs to the MMBTRA101SS through MMBTRA106SS series from Diotec Semiconductor. The series offers various resistor combinations tailored for different logic levels and drive requirements. All units share identical physical dimensions and electrical ratings for voltage and current, differing primarily in their internal resistance ratios and DC current gain specifications.

Replacement Considerations

Cross-reference with other PNP digital transistors in the SOT-23 package having similar 22k/22k resistor configurations. Verify pinout compatibility and ensure replacement parts meet the same -50V voltage and -100mA current limits.