Diodes Incorporated ZXM64P035GTA

Overview

ZXM64P035GTA from Diodes Incorporated (formerly Zetex) is a P-channel enhancement-mode MOSFET with V_BRDSS = −35 V, R_DS(on) = 0.075 Ω @ V_GS = −10 V, and I_D = −5.3 A, designed for low-voltage power switching in Class D audio output stages and motor control circuits.

For engineers reviewing the ZXM64P035GTA datasheet, ZXM64P035GTA pinout, ZXM64P035GTA application, or ZXM64P035GTA equivalent, key selection criteria include its SOT223 package thermal performance (R_θJA = 32 °C/W on FR4), fast switching (t_d(off) = 40 ns), and low gate charge (Q_g = 46 nC) for efficient PWM-driven loads.

Technical Context

This MOSFET operates in enhancement mode with a negative gate threshold (V_GS(th) = −1.0 V) and integrates a body diode with V_SD = −0.95 V and t_rr = 30.2 ns. Its planar high-cell-density structure enables low R_DS(on) without sacrificing switching speed.

Designed for surface-mount use on 25 mm × 25 mm FR4 PCBs, it delivers 3.9 W continuous power dissipation at T_A = 25 °C with linear derating of 31 mW/°C, supporting stable operation up to T_J = +150 °C.

Key Specifications

Pinout & Package

SOT223 package: 4-lead surface-mount outline with exposed drain pad (pin 2) for enhanced thermal conduction; standardized footprint per JEDEC TO-261AA.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMG3415L-7 and SI2301DS-T1-E3, ZXM64P035GTA uniquely balances −35 V rating, 0.075 Ω on-resistance, and 40 ns turn-off in SOT223 - making it optimal for 24–35 V industrial motor and audio designs requiring thermal headroom and fast control.

Availability

ZXM64P035GTA is available at Aetrix Electronics and suitable for Class D audio amplifiers, brushed DC motor controllers, USB-C power delivery load switches, and industrial sensor power sequencers requiring stable component supply across production lifecycles.

Supply support for ZXM64P035GTA 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 in 2008 and maintains its high-performance analog and power semiconductor portfolio, emphasizing reliability and application-specific optimization for industrial and consumer markets.

ZXM64P035GTA belongs to Zetex's legacy high-cell-density planar MOSFET product line, engineered specifically for low-voltage, high-efficiency power switching where thermal performance and gate-drive simplicity are critical.

FAQ

What is the maximum safe operating junction temperature for ZXM64P035GTA?

The absolute maximum junction temperature is +150 °C, with continuous operation supported up to this limit when thermal design meets the specified R_θJA = 32 °C/W condition on FR4. Derating begins linearly above 25 °C ambient, at 31 mW/°C, ensuring safe thermal margin under sustained 3.9 W dissipation.

Can ZXM64P035GTA be driven directly by a 3.3 V microcontroller GPIO?

Yes - its V_GS(th) = −1.0 V (min) and −1.5 V (typ) ensures full enhancement with 3.3 V logic, delivering R_DS(on) ≤ 0.105 Ω at V_GS = −3.3 V and I_D = −1.2 A. Gate charge remains manageable (Q_g = 46 nC), permitting direct drive without buffer stages in moderate-speed applications.

Does ZXM64P035GTA include an integrated body diode, and what are its key parameters?

Yes - it features a monolithic body diode with forward voltage V_SD = −0.95 V at I_S = −2.4 A and T_J = 25 °C, plus reverse recovery time t_rr = 30.2 ns and Q_rr = 27.8 nC. These values support synchronous rectification and prevent destructive shoot-through in H-bridge configurations when properly timed.

How does the SOT223 package affect thermal performance compared to SOT23?

The SOT223 provides significantly better thermal performance than SOT23: R_θJA = 32 °C/W (vs. >100 °C/W for typical SOT23), enabling 3.9 W continuous dissipation versus ~0.5 W. Its exposed drain pad and larger copper area allow direct thermal coupling to PCB planes, making it suitable for ≥5 A power switching where SOT23 would require derating below 1 A.