Diodes Incorporated MMDT2222VQ-7

Overview

MMDT2222VQ from Diodes Incorporated is a dual NPN small-signal transistor in SOT563 package, rated for 40 V V_CEO, 600 mA I_C, and 150 mW power dissipation. It delivers h_FE = 35–300 (depending on bias), f_T = 300 MHz, and V_CE(sat) ≤ 0.3 V at I_C = 150 mA / I_B = 15 mA - optimized for medium-power switching and amplification in space-constrained automotive and industrial control circuits.

For engineers reviewing the MMDT2222VQ datasheet, MMDT2222VQ pinout, MMDT2222VQ application, or MMDT2222VQ equivalent, key selection criteria include AEC-Q101 qualification, ultra-small SOT563 footprint, complementary PNP pairing with MMDT2907VQ, and verified thermal performance up to +150°C junction temperature.

Technical Context

This dual NPN transistor supports independent emitter-common configurations per channel, with matched gain characteristics across temperature (−55°C to +150°C) and guaranteed breakdown ratings: V_CBO = 75 V, V_EBO = 6 V. Its 300 MHz f_T enables RF-capable switching up to ~100 MHz with low storage time (t_s = 225 ns) and fast fall time (t_f = 60 ns).

Designed for automotive-grade reliability, it features halogen- and antimony-free "Green" molding compound (UL 94V-0), matte tin terminals compliant with MIL-STD-202, and moisture sensitivity level 1 - enabling reflow compatibility without baking. The device operates under pulsed conditions for h_FE and BV_CEO testing (pulse width ≤ 300 µs, duty cycle ≤ 2%).

Key Specifications

Pinout & Package

Package: SOT563 - ultra-small 6-pin surface-mount package (1.6 mm × 1.6 mm × 0.6 mm), molded plastic with matte tin terminations, UL 94V-0 rated, weight ≈ 0.003 g.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual NPN transistor applications.

Compared with DMTC3022LWQ-7 and MMDT2222AL-7, the MMDT2222VQ uniquely combines AEC-Q101 qualification, SOT563 miniaturization, and full "Green" compliance - making it the only option qualified for production automotive modules requiring change control and IATF16949 traceability.

Availability

MMDT2222VQ is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, and medical diagnostic equipment requiring stable component supply and long-term lifecycle assurance.

Supply support for MMDT2222VQ 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The MMDT2222VQ belongs to Diodes' automotive-qualified small-signal transistor product line, engineered specifically for space-constrained, high-reliability applications in vehicle electronics and industrial automation where AEC-Q101 compliance and thermal robustness are mandatory.

FAQ

What is the maximum continuous collector current rating for MMDT2222VQ?

The absolute maximum continuous collector current is 600 mA per transistor at T_A = +25°C. Derating applies above +25°C: R_θJA = 833°C/W implies ~0.18 mA/°C reduction above ambient, limiting usable I_C to ~400 mA at +85°C ambient on standard FR4 PCB.

Is MMDT2222VQ pin-compatible with other dual NPN transistors in SOT563?

Yes - MMDT2222VQ uses standard SOT563 pinout (E-B-C / C-B-E), matching industry convention for dual NPN devices. This ensures mechanical and solder-reflow compatibility with alternatives like DMTC3022LWQ-7 and DMT3022LWQ-7, though electrical parameters differ.

Does MMDT2222VQ support operation at −55°C?

Yes - the specified operating junction temperature range is −55°C to +150°C. Electrical characteristics including h_FE, V_CE(sat), and f_T are characterized down to −55°C, with h_FE ≥ 35 at I_C = 10 mA and V_CE = 10 V, confirming functionality in extended-cold environments.

How does the "Green" designation impact soldering and reliability?

The "Green" status indicates halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb), which eliminates corrosive residue formation during high-temperature reflow and improves long-term intermetallic stability at solder joints - critical for automotive under-hood reliability over 15+ year lifetimes.