Diodes Incorporated ZXTP717MATA

Overview

ZXTP717MATA from Diodes Incorporated is a PNP bipolar junction transistor optimized for low-saturation switching in power control circuits, featuring -12V V_CEO, -4A continuous collector current, -140mV V_CE(sat) @ -1A, 60 mΩ equivalent on-resistance, and AEC-Q101 qualification for automotive-grade reliability - deployed in MOSFET gate driving and DC-DC converter power stages.

For engineers reviewing the ZXTP717MATA datasheet, ZXTP717MATA pinout, ZXTP717MATA application, or ZXTP717MATA equivalent, key selection criteria include verified PNP switching performance at high current density, thermal resistance (R_θJA = 51°C/W under pulsed conditions), DFN2020B-3 package footprint compatibility, and AEC-Q101 stress-test compliance for industrial and automotive power management designs.

Technical Context

This PNP transistor operates with fixed-polarity current amplification and saturation switching behavior, not digital logic or voltage regulation. Its h_FE remains ≥100 up to -10A (pulsed), supporting robust base-driven turn-on across wide load ranges, while V_BE(sat) = -0.97V @ -4A ensures predictable drive voltage requirements.

Thermal design relies on the exposed collector pad soldered to PCB copper; R_θJL = 16.8°C/W confirms efficient junction-to-lead conduction, and the 0.6mm profile enables integration into space-constrained power modules where SOT23 alternatives exceed height limits.

Key Specifications

Pinout & Package

DFN2020B-3 is a 3-terminal, bottom-exposed-pad surface-mount package with no leads; the collector connects directly to the thermal pad, while emitter and base occupy adjacent side terminals. Mechanical dimensions conform to Diodes Inc. outline drawing DS31881 Rev. 5–2, page 6.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ZXTP717MATA, ZXTP2012ZTA trades current capability and thermal efficiency for higher voltage tolerance in legacy packages, while DMT3005LKQ extends voltage range with matched footprint but sacrifices high-current gain linearity - making ZXTP717MATA optimal for 12V, 3–4A automotive and industrial switching where gain stability and thermal density are prioritized.

Availability

ZXTP717MATA is available at Aetrix Electronics and suitable for MOSFET gate driving, DC-DC converter power stages, and motor control circuits requiring stable component supply, AEC-Q101 qualification, and compact thermal packaging.

Supply support for ZXTP717MATA 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 centers across Asia and manufacturing in China, Taiwan, and the U.S.

The ZXTP series targets high-reliability power switching applications, emphasizing low saturation voltage, AEC-Q101 qualification, and thermally enhanced DFN packaging for automotive and industrial power management subsystems.

FAQ

What is the maximum continuous collector current for ZXTP717MATA under standard PCB conditions?

The ZXTP717MATA supports -4A continuous collector current when mounted on a 31 mm × 31 mm FR4 PCB with 1 oz copper coverage and still-air conditions, as specified in Note 4 of the datasheet. Derating begins above 25°C ambient, with linear reduction of 19.6 mW/°C beyond that point.

Does ZXTP717MATA require a heatsink for operation at 3A continuous current?

No external heatsink is required if the exposed collector pad is fully soldered to ≥10 cm² of 1 oz copper on the PCB. At 3A and 25°C ambient, junction temperature rise is approximately 77°C (3A² × 0.06 Ω × 51°C/W), resulting in T_J ≈ 102°C - within the -55°C to +150°C operating range.

How does the DFN2020B-3 package improve thermal performance over SOT23?

The DFN2020B-3 reduces R_θJA by 60% versus SOT23 due to its exposed collector pad directly bonded to PCB copper, eliminating leadframe thermal bottlenecks. This yields 51°C/W (pulsed) vs ~125°C/W for comparable SOT23 transistors, enabling higher power density without airflow or heatsinks.

Is ZXTP717MATA suitable for use in life support equipment?

No. Diodes Incorporated explicitly prohibits use of ZXTP717MATA in life support devices or systems without prior written approval from its CEO, as stated in the "LIFE SUPPORT" notice on page 7 of DS31881. It is not certified for implantable or safety-critical medical applications.