Diodes Incorporated ZXMN6A09KQTC

Overview

ZXMN6A09KQ from Diodes Incorporated is a 60V N-channel enhancement-mode MOSFET in TO252 package, rated for 7.7A continuous drain current at V_GS = 10V and 6.3A at V_GS = 4.5V, with R_DS(ON) of 40 mΩ and 60 mΩ respectively. It delivers low conduction loss and fast switching (t_D(off) = 32.5 ns, Q_g = 29 nC @ 10V) for high-efficiency DC-DC converters and motor control switches.

For engineers reviewing the ZXMN6A09KQ datasheet, ZXMN6A09KQ pinout, ZXMN6A09KQ application, or ZXMN6A09KQ equivalent, key selection criteria include its AEC-Q101 qualification, 60V BVDSS rating, TO252 thermal performance (R_θJA = 29 °C/W on 50 mm × 50 mm 2 oz FR4), and body diode recovery (Q_rr = 26.0 nC, t_rr = 25.6 ns).

Technical Context

This MOSFET employs planar trench-gate technology to balance low R_DS(ON) and controlled gate charge (Q_g = 29 nC @ 10V, Q_gd = 4.7 nC). Its 1.0–3.0 V gate threshold enables robust drive compatibility with 3.3 V and 5 V logic controllers.

The integrated body diode supports synchronous rectification and freewheeling in buck converters and H-bridge motor drivers. Thermal design leverages the TO252 package's low R_θJL = 1.04 °C/W and validated derating curves for 25 mm × 25 mm and 50 mm × 50 mm PCB layouts.

Key Specifications

Pinout & Package

Package: TO252 (DPAK), surface-mount, single-ended lead frame with exposed drain pad for thermal and electrical connection. Molded green compound, UL 94V-0 rated, matte tin terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMN601DWKQ and IPD250N06N3G, ZXMN6A09KQ offers balanced RDS(ON)/Qg trade-off (40 mΩ/29 nC), making it optimal for mid-frequency (200–500 kHz), medium-current (5–8 A) power stages where both conduction and switching losses must be minimized.

Availability

ZXMN6A09KQ is available at Aetrix Electronics and suitable for DC-DC converters, motor control circuits, and automotive disconnect switches requiring stable component supply, AEC-Q101 compliance, and TO252 thermal performance.

Supply support for ZXMN6A09KQ 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.

ZXMN6A09KQ belongs to Diodes' Automotive-Qualified Power MOSFET product line, engineered for robust operation in harsh environments including engine control units, body electronics, and infotainment power supplies.

FAQ

What is the maximum junction temperature and how does it affect thermal design?

The ZXMN6A09KQ has a maximum junction temperature (T_J) of 150°C. Its thermal resistance R_θJA is 29°C/W on a 50 mm × 50 mm 2 oz FR4 PCB, meaning a 10.1 W power dissipation raises T_J by 290°C above ambient-so safe operation requires limiting P_D to ≤4.3 W at T_A = 25°C. Derating curves in the datasheet define allowable power vs. ambient temperature.

Is the body diode suitable for continuous freewheeling in motor control?

Yes-the body diode is rated for continuous source current I_S = 10.8 A and pulsed I_SM = 43 A. Its V_SD = 0.85–0.95 V at I_S = 6.6 A and t_rr = 25.6 ns enable efficient freewheeling in brushed DC motor H-bridges, though external Schottky diodes may be preferred for ultra-low-loss or high-frequency (>1 MHz) operation.

How does the AEC-Q101 qualification impact manufacturing and testing?

AEC-Q101 qualification means ZXMN6A09KQ undergoes stress tests including temperature cycling (−55°C to +150°C), high-temperature reverse bias (HTRB), and unbiased highly accelerated stress test (UHAST). These ensure reliability over 15+ years in automotive environments; PPAP documentation is available for production release validation per customer requirements.

Can ZXMN6A09KQ be driven directly from a 3.3 V microcontroller GPIO?

No-its gate threshold voltage V_GS(th) ranges from 1.0 V to 3.0 V, but full enhancement requires ≥4.5 V for R_DS(ON) ≤60 mΩ. A 3.3 V drive yields incomplete turn-on and excessive conduction loss; a level-shifter or dedicated gate driver (e.g., TC4427) is required for reliable 10 V gate drive in high-current applications.