Diodes Incorporated ZXTC6717MCQTA

Overview

ZXTC6717MCQTA from Diodes Incorporated is a complementary dual low-saturation bipolar transistor pair in a single W-DFN3020-8 Type B package, integrating an NPN (BV_CEO > 15 V, I_C = 4.5 A) and PNP (BV_CEO > −12 V, I_C = −4 A) device. It delivers ultra-low V_CE(sat) (100 mV max @ 1 A NPN / −140 mV max @ −1 A PNP) and low on-resistance (R_SAT = 45 mΩ / 60 mΩ), enabling high-efficiency power switching in compact DC–DC converters and motor control circuits.

For engineers reviewing the ZXTC6717MCQTA datasheet, ZXTC6717MCQTA pinout, ZXTC6717MCQTA application, or ZXTC6717MCQTA equivalent, this AEC-Q101 qualified automotive-grade device offers validated thermal performance (R_θJA = 51.0 °C/W on 8 cm² 2 oz Cu), precise h_FE characterization up to 12 A, and RoHS-compliant, halogen-free construction for space-constrained, high-reliability power stages.

Technical Context

This dual-transistor die integrates matched NPN and PNP structures on a shared thermally optimized substrate with exposed collector pads for low R_θJL (17.1 °C/W). Each transistor operates independently with separate base-emitter-collector terminals, supporting complementary switching topologies such as H-bridge drivers and synchronous rectifiers without cross-conduction risk.

Its W-DFN3020-8 Type B package features NiPdAu-plated terminals, 0.8 mm profile, and UL 94V-0 molding compound-enabling direct PCB thermal coupling and compatibility with automated optical inspection. The device is characterized under pulsed conditions (≤300 µs, ≤2% duty cycle) for saturation and gain parameters, ensuring stability in high-current transient operation.

Key Specifications

Pinout & Package

Package: W-DFN3020-8 Type B, 0.8 mm nominal height, molded green plastic with UL 94V-0 rating and NiPdAu-plated terminals. Exposed collector pads (C1, C2) provide low thermal resistance to PCB copper.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar complementary low-saturation transistor applications.

Compared with DMT6009LSD-13 and ZXTD6717MCTA, ZXTC6717MCQTA uniquely delivers AEC-Q101-qualified, co-packaged NPN/PNP bipolar switching in a thermally optimized 3×2 mm DFN-enabling simplified layout, guaranteed matching, and automotive-grade robustness without MOSFET gate-drive complexity.

Availability

ZXTC6717MCQTA is available at Aetrix Electronics and suitable for automotive body electronics, portable power management, and industrial motor control applications requiring stable component supply, AEC-Q101 compliance, and high-current low-saturation switching performance.

Supply support for ZXTC6717MCQTA 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 power management, signal integrity, and protection solutions for automotive, industrial, and consumer markets.

The ZXTC6717MCQTA belongs to Diodes' Automotive-Grade Power Transistor product line, engineered specifically for space-constrained, thermally demanding applications such as engine control units, ADAS power supplies, and electric vehicle subsystems where low saturation voltage and AEC-Q101 validation are mandatory.

FAQ

What is the maximum continuous collector current for each transistor in ZXTC6717MCQTA?

The NPN transistor supports 4.5 A continuous collector current (I_C) at T_A = +25°C with appropriate PCB copper area (8 cm², 2 oz Cu), while the PNP transistor supports −4 A under identical conditions. Derating applies above +25°C per the R_θJA = 51.0 °C/W specification.

How does the W-DFN3020-8 Type B package improve thermal performance over SOT26?

The W-DFN3020-8 Type B package achieves 40% lower R_θJA than SOT26 due to its exposed collector pads directly soldered to large PCB copper areas, eliminating plastic-body thermal bottlenecks. Its 0.8 mm height also improves airflow proximity in stacked assemblies.

Is ZXTC6717MCQTA suitable for synchronous rectification in a 200 kHz DC–DC converter?

Yes-its 120 MHz f_T (NPN) and 110 MHz f_T (PNP), combined with fast turn-on (120 ns) and turn-off (160 ns) times, support reliable operation up to 200 kHz. However, bipolar saturation recovery requires careful base drive design to avoid storage time delays.

Does ZXTC6717MCQTA require special PCB layout considerations for thermal management?

Yes-the exposed C1 and C2 collector pads must be connected to ≥8 cm² of 2 oz copper with multiple thermal vias to inner layers. The recommended pad layout (per AP02001) specifies 0.82–1.02 mm D2 and 0.43–0.63 mm E2 dimensions to ensure solder joint integrity and thermal transfer.