MMBTRC103SS-AQ

Overview

The MMBTRC103SS-AQ is a surface-mount digital NPN transistor manufactured by Diotec Semiconductor. It integrates bias resistors to reduce component count and board space. The device features a collector-emitter voltage (VO) of 50 V, a continuous collector current (IO) of 100 mA, and a total power dissipation (Ptot) of 200 mW at 25°C ambient temperature. It utilizes an SOT-23 (TO-236) package with a maximum junction temperature of 150°C. Electrical characteristics include a DC current gain (hFE) of 70 at VO=5V and IO=10mA, input resistors R1 and R2 both rated at 22 kOhms, and a transition frequency (fT) of 200 MHz.

Feature Summary

• Integrated bias resistor network reduces circuit complexity and saves PCB space
• AEC-Q101 qualified for automotive reliability standards
• Compliant with RoHS directives without exemptions

Applications

• Digital control circuits
• Switching applications
• Signal processing

Procurement Notes

Verify the specific suffix -AQ confirms AEC-Q101 qualification status before procurement. Confirm that the ordering code matches the required resistance values and package type. Ensure compliance with REACH regulations and conflict mineral sourcing requirements as specified in the manufacturer documentation.

Selection Notes

Select this component when a single SMD package must replace discrete transistors and base resistors. The 22k Ohm internal resistors suit standard logic interface levels. Verify thermal constraints against the 200 mW dissipation limit and ensure the operating temperature range fits the application environment.

Part Context

This part belongs to the MMBTRC10xSS series of SMD digital NPN transistors from Diotec Semiconductor. The series includes variants with different integrated resistor ratios, such as the MMBTRC101SS through MMBTRC106SS. All share the same physical footprint and general electrical ratings while differing in internal resistance configurations.

Replacement Considerations

Direct substitutes within the same family include MMBTRC103SS without the automotive suffix if AEC-Q101 qualification is not mandatory. Other series members like MMBTRC102SS or MMBTRC104SS offer different resistance values but maintain identical package and voltage ratings.