DMMT3906WQ-7-F

Overview

The DMMT3906WQ-7-F is a matched pair of PNP small signal transistors manufactured by Diodes Incorporated. It operates with a collector-emitter voltage (VCEO) and collector-base voltage (VCBO) of -40 V, supporting a maximum DC collector current (IC) of -200 mA. The device dissipates up to 200 mW of power and features a transition frequency (fT) of 250 MHz. Packaged in an SOT-363 surface-mount format, it provides intrinsic matching between the two transistors, ensuring a 2% tolerance on current gain (hFE) and a 2 mV difference in base-emitter voltage (VBE).

Feature Summary

• Intrinsically matched dual PNP transistor configuration for high precision applications.
• Qualified to AEC-Q101 automotive standards for enhanced reliability.
• Fully lead-free, RoHS compliant, and halogen/antimony free construction.

Applications

• Current mirrors
• Differential and instrumentation amplifiers
• Comparators

Procurement Notes

Verify that the specific part number suffix 'Q' corresponds to the AEC-Q101 qualified automotive grade variant as documented in the manufacturer's ordering information. Confirm that the component meets the required PPAP capability if mandated by the target assembly specifications. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when circuit design requires closely matched PNP transistors within a single package to minimize offset errors. The SOT-363 footprint offers space efficiency compared to discrete components. Verify that the -40 V rating aligns with the system's maximum operating voltages and that the thermal resistance characteristics are sufficient for the intended heat dissipation environment.

Part Context

This component belongs to the DMMT3906 series of matched pair transistors. While electrically similar to standard commercial variants like the DMMT3906W-7-F, the 'Q' suffix specifically denotes qualification to AEC-Q101 standards. This distinction ensures suitability for automotive environments requiring higher reliability and strict manufacturing process controls without altering the fundamental electrical performance parameters.

Replacement Considerations

Direct substitutes include other AEC-Q101 qualified matched pairs in SOT-363 packages, such as the MMDT3906VC-7-F. When replacing, verify that the replacement maintains the same 2% hFE matching and 2 mV VBE matching tolerances to preserve circuit accuracy.