Diodes Incorporated MMDT4413-7

Overview

MMDT4413-7 from Diodes Incorporated is a complementary NPN/PNP small-signal transistor pair in a single SOT363 package, integrating an MMBT4401 (NPN) and MMBT4403 (PNP). It supports medium-power amplification and switching with V_CEO = 40 V (NPN) / −40 V (PNP), I_C = ±600 mA, and P_D = 200 mW. Used in dual-rail bias circuits, H-bridge drivers, and discrete logic level translators.

For engineers reviewing the MMDT4413-7 datasheet, MMDT4413-7 pinout, MMDT4413-7 application, or MMDT4413-7 equivalent, this page delivers verified electrical specs, thermal derating behavior, complementary gain matching, and AEC-Q101 qualification status for automotive-grade design validation.

Technical Context

The device integrates two electrically isolated transistors on one die: NPN (MMBT4401-type) with h_FE = 20–300 at I_C = 100 µA–500 mA and f_T = 250 MHz; PNP (MMBT4403-type) with h_FE = 20–300 at I_C = −100 µA–−500 mA and f_T = 200 MHz. Both exhibit matched saturation characteristics (V_CE(SAT) ≤ 0.75 V / −0.75 V at rated I_C/I_B) and low leakage (I_CEX ≤ ±100 nA).

Thermal performance is defined for a 1 oz copper, single-sided FR4 PCB per JESD51-3: R_θJA = 625 °C/W, with linear power derating above +25 °C ambient. The SOT363 package enables high-density layout while maintaining isolation between NPN and PNP sections for push-pull or phase-splitter topologies.

Key Specifications

Pinout & Package

SOT363 is a 6-pin ultra-small surface-mount plastic package (2.10 × 1.30 × 0.95 mm), with gull-wing leads, matte tin finish, and UL 94V-0 flammability rating. Moisture sensitivity level is J-STD-020 Level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar complementary small-signal transistor pair applications.

Compared with DMC3026LSD-7 and NSVT4403M3T5G, MMDT4413-7 uniquely provides monolithic NPN/PNP gain matching, bipolar switching robustness against voltage transients, and AEC-Q101 qualification-making it optimal for cost-sensitive, thermally coupled, automotive-compliant discrete amplifier designs.

Availability

MMDT4413-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O interfaces, and medical sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MMDT4413-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and consumer markets.

MMDT4413-7 belongs to Diodes' complementary transistor pair product line, engineered for space-constrained, thermally coupled switching and amplification where matched NPN/PNP characteristics and AEC-Q101 compliance are essential.

FAQ

What is the maximum junction temperature for MMDT4413-7?

The absolute maximum junction temperature is +150 °C, consistent with its AEC-Q101 qualification and specified operating range of −65 °C to +150 °C. Derating begins at +25 °C ambient per the 625 °C/W thermal resistance curve, reducing allowable power dissipation linearly to zero at +150 °C junction.

Can MMDT4413-7 replace two separate SOT23 transistors in an existing design?

Yes-its SOT363 footprint matches the combined area of two SOT23 devices, and pin assignments (E1/B1/C1/E2/B2/C2) allow direct substitution in push-pull, phase-splitter, or complementary amplifier layouts. Thermal coupling improves gain tracking versus discrete placement.

Does MMDT4413-7 support DC biasing for linear amplifier operation?

Yes-the NPN and PNP sections each provide h_FE ≥ 20 at I_C = ±100 µA and maintain stable gain up to ±500 mA, enabling Class-A and Class-AB biasing. V_BE(SAT) values (0.75–1.2 V / −0.75–−1.3 V) allow precise base resistor calculation for fixed-current bias networks.

Is the SOT363 package compatible with standard reflow profiles?

Yes-SOT363 is qualified for lead-free reflow per J-STD-020 Level 1 (MSL 1), with peak temperature tolerance up to 260 °C. Its matte tin terminations ensure reliable solder wetting using standard SAC305 paste and industry-standard time-above-liquidus (60–90 s) profiles.