Diodes Incorporated ZXMP3A16N8TA

Overview

ZXMP3A16N8TA from Diodes Incorporated (formerly Zetex Semiconductors) is a -30V, 6.7A P-channel enhancement-mode trench MOSFET in SO-8 package. It delivers R_DS(on) = 40 mΩ at V_GS = -10 V and features fast switching (t_d(off) = 37.1 ns), low gate charge (Q_g = 29.6 nC), and low threshold voltage (V_GS(th) = -1.0 V). It is used in low-voltage power management disconnect switches and brushed DC motor control.

For engineers reviewing the ZXMP3A16N8TA datasheet, ZXMP3A16N8TA pinout, ZXMP3A16N8TA application, or ZXMP3A16N8TA equivalent, key selection criteria include verified R_DS(on) at -4.5 V, body diode recovery (t_rr = 21.7 ns), thermal resistance (R_θJA = 45 °C/W on FR4), and SO-8 footprint compatibility with PCB layout constraints.

Technical Context

This MOSFET employs a trench-gate structure optimized for low conduction loss and high-speed switching in unidirectional load-switching topologies. Its negative V_GS(th) enables direct interface with 3.3 V/5 V logic-level controllers without level-shifting circuitry.

The device integrates a robust body diode with V_SD = -0.85 V at -3.6 A and t_rr = 21.7 ns, supporting synchronous rectification and freewheeling in H-bridge motor drivers. Thermal performance is validated per JEDEC standards using 25 mm × 25 mm single-sided 1 oz copper FR4.

Key Specifications

Pinout & Package

Package: SO-8 (Surface-mount, 8-lead small outline integrated circuit), 4.8–5.0 mm width, 3.8–4.0 mm body length, 1.35–1.75 mm height, 1.27 mm lead pitch. Compliant with JEDEC MS-012AC.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar P-channel MOSFET applications.

Compared with DMG2305UX-13 and SI2305DS-T1-E3, ZXMP3A16N8TA offers superior conduction efficiency at 3.3 V logic levels, lower switching loss due to reduced Q_g, and proven thermal performance in SO-8 - making it optimal for 5–6 A industrial load-switch designs requiring reliability and layout simplicity.

Availability

ZXMP3A16N8TA is available at Aetrix Electronics and suitable for load disconnect switches, brushed DC motor drivers, USB power delivery modules, and industrial PLC output stages requiring stable component supply and long-term production continuity.

Supply support for ZXMP3A16N8TA 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 acquired Zetex Semiconductors in 2008 and maintains its legacy of high-performance analog and discrete semiconductors with ISO 9001 and IATF 16949 certification.

This device belongs to Zetex's trench-MOSFET product line, engineered specifically for high-efficiency, low-voltage power management in space-constrained industrial and automotive-qualified systems.

FAQ

What is the maximum safe operating junction temperature for ZXMP3A16N8TA?

The absolute maximum junction temperature is +150°C, and the device is rated for continuous operation across -55°C to +150°C. Derating begins at 25°C ambient, with linear reduction of power dissipation at 22.4 mW/°C when mounted on FR4 with high-copper coverage, ensuring thermal stability under sustained 6.7 A loads.

Can ZXMP3A16N8TA be driven directly from a 3.3 V microcontroller GPIO?

Yes - its V_GS(th) range of -1.0 V (min) to -2.5 V (max) guarantees full enhancement at 3.3 V logic high (0 V gate) and 0 V logic low (-3.3 V effective V_GS). No level shifter is required, and typical R_DS(on) remains ≤70 mΩ at V_GS = -4.5 V, supporting robust 3.3 V control.

Does this MOSFET include an integrated body diode, and what are its key parameters?

Yes - it integrates a monolithic source-drain body diode with V_SD = -0.85 V at -3.6 A and TJ = 25°C, t_rr = 21.7 ns, and Q_rr = 16.1 nC. These values are measured under standardized conditions (IF = -2 A, di/dt = 100 A/μs) and support efficient freewheeling in motor and relay drive circuits without external diodes.

Is ZXMP3A16N8TA RoHS-compliant and halogen-free?

Yes - Diodes Incorporated certifies ZXMP3A16N8TA as fully compliant with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The device is also halogen-free per IEC 61249-2-21, with chlorine ≤900 ppm and bromine ≤900 ppm, meeting green compliance requirements for industrial and consumer end equipment.