Diodes Incorporated ZXTD617MCTA

Overview

ZXTD617MCTA from Diodes Incorporated is a dual NPN low-saturation transistor in W-DFN3020-8 package, designed for high-efficiency power switching in space-constrained DC-DC converters and motor control circuits. It delivers 4.5A continuous collector current per channel, 15V V_CEO, and ultra-low 100mV max V_CE(sat) at 1A with 45mΩ equivalent on-resistance.

For engineers reviewing the ZXTD617MCTA datasheet, ZXTD617MCTA pinout, ZXTD617MCTA application, or ZXTD617MCTA equivalent, key selection criteria include dual-channel footprint reduction, thermal performance on 28mm×28mm 2oz Cu PCB (R_θJA = 83.3°C/W), and validated h_FE ≥200 up to 12A for robust current gain hold-up in battery-powered switching stages.

Technical Context

This dual NPN transistor integrates two matched silicon die in a thermally enhanced W-DFN3020-8 (Type B) package with exposed collector pads for low R_θJL (17.1°C/W). Each channel operates independently with separate base, emitter, and collector terminals-no internal connection between channels.

It supports pulsed operation up to 15A peak (I_CM) and maintains stable gain (h_FE = 150–450) across –55°C to +150°C junction temperature, with V_BE(sat) ≤1.05V at 4.5A/50mA drive-enabling efficient gate driving of downstream MOSFETs or direct load switching.

Key Specifications

Pinout & Package

Package: W-DFN3020-8 (Type B), 3.0mm × 2.0mm × 0.8mm, lead-free, halogen-free, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ZXTD617MCTA, ZXTD618MCTA offers higher voltage headroom at the cost of increased saturation voltage, while DMT3006LPSQ-7 eliminates base drive current but demands higher gate voltage and lacks current gain-making ZXTD617MCTA optimal for 12V systems needing low-loss bipolar drive with legacy 3.3V/5V controller compatibility.

Availability

ZXTD617MCTA is available at Aetrix Electronics and suitable for DC-DC converters, motor control modules, and portable power switches requiring stable component supply and AEC-Q101-capable manufacturing traceability.

Supply support for ZXTD617MCTA 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-efficiency power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

ZXTD617MCTA belongs to Diodes' ZXT series of low-saturation bipolar transistors, engineered specifically for compact, thermally demanding power-switching applications where footprint, conduction loss, and gain stability at high current are critical design constraints.

FAQ

What is the maximum allowable junction temperature for ZXTD617MCTA?

The absolute maximum junction temperature is +150°C, with storage temperature matching this range (–55°C to +150°C). Operation above 150°C risks permanent degradation of h_FE and increased leakage; derating begins at 25°C ambient per the 12mW/°C linear factor specified for 28mm×28mm 2oz Cu PCB mounting.

Can ZXTD617MCTA be used in linear amplifier mode?

No-it is optimized for switching operation, not linear amplification. Its h_FE is specified only up to 12A under pulsed conditions, and V_CE(sat) is guaranteed only in saturation. For linear applications, Diodes' ZTX series (e.g., ZTX653) provides full h_FE and V_CE curves across the active region.

Is the exposed pad electrically connected to any internal node?

Yes-the exposed pad is internally connected to both collectors (C1 and C2), forming a common thermal and electrical node. It must be soldered to a PCB copper pour tied to the system's collector-rail potential; floating or grounding the pad without collector reference violates the device's thermal and electrical design.

Does ZXTD617MCTA meet AEC-Q101 qualification?

ZXTD617MCTA is manufactured in IATF 16949-certified facilities and supports PPAP documentation, but it is not formally AEC-Q101 qualified. For automotive-grade versions, Diodes offers the ZXTD617MCTA-Q variant (with "-Q" suffix), which undergoes full stress testing per AEC-Q101 Rev D and includes automotive-specific change control.