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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Diodes Incorporated ZXMP4A57E6QTA

Name: ZXMP4A57E6QTA
Brand: Diodes Incorporated
SKU: ZXMP4A57E6QTA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ZXMP4A57E6QTA

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

Package:: SOT-23-6

Datasheet:: ZXMP4A57E6QTA.pdf

Description:: MOSFET BVDSS: 31V~40V SOT26 T&R

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Product details

Overview

ZXMP4A57E6QTA from Diodes Incorporated is a 40V P-channel enhancement-mode MOSFET in SOT26 package, rated for -3.7 A continuous drain current at V_GS = -10 V, with R_DS(ON) = 80 mΩ and fast switching (t_D(off) = 47 ns). It is AEC-Q101 qualified and used in automotive-grade DC-DC converters and motor control circuits requiring robust power switching.

For engineers reviewing the ZXMP4A57E6QTA datasheet, ZXMP4A57E6QTA pinout, ZXMP4A57E6QTA application, or ZXMP4A57E6QTA equivalent, key selection criteria include its -40 V V_BR_DSS, low gate charge (Q_g = 7 nC @ V_GS = -4.5 V), body diode forward voltage (-0.86 V @ I_S = -4 A), thermal resistance (R_θJA = 73 °C/W), and AEC-Q101 qualification status.

Technical Context

This P-channel MOSFET operates as a high-side load switch or synchronous rectifier in buck converters, leveraging its negative threshold voltage (-1.0 to -3.0 V) and low input capacitance (C_iss = 833 pF) for efficient gate drive with standard logic-level controllers. Its body diode exhibits t_rr = 17.4 ns and Q_rr = 11.1 nC, supporting high-frequency operation up to 1 MHz.

The device uses a planar trench process to achieve stable R_DS(ON) across temperature (±20% variation from -55 °C to +150 °C) and maintains safe operating area integrity up to -18 A pulsed drain current. Thermal design relies on its 73 °C/W junction-to-ambient rating under 1 oz copper FR4 layout per JESD51-7.

Key Specifications

Parameter	Value and Actual Design Meaning
V_BR_DSS	-40 V - Withstands reverse drain-source voltage up to 40 V without breakdown, enabling use in 24 V automotive systems with margin.
R_DS(ON)	80 mΩ @ V_GS = -10 V - Delivers <120 mW conduction loss at -4 A, critical for thermally constrained PCB layouts.
I_D (cont)	-3.7 A @ T_A = +25 °C - Supports sustained 3.7 A load switching in ambient-cooled SOT26 packages.
Q_g	7 nC @ V_GS = -4.5 V - Enables fast turn-on with low gate driver current demand (<1 mA avg for 1 MHz PWM).
t_D(off)	47 ns - Limits dead-time requirements in synchronous buck topologies to ≤50 ns for shoot-through prevention.
V_SD	-0.86 V @ I_S = -4 A - Reduces reverse conduction loss during freewheeling phase versus Schottky alternatives.
T_J range	-55 to +150 °C - Validated for under-hood automotive environments including engine control modules.

Pinout & Package

Package: SOT26 (6-pin SC-74A), surface-mount, lead-free, halogen-free, 0.018 g mass. Molded plastic case (UL 94V-0), matte tin–annealed copper leadframe.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (G)	Gate	Control terminal accepting -4.5 V to -10 V logic for full enhancement; C_iss = 833 pF limits slew rate dependency.
Pin 2 (S)	Source	Reference node for gate drive; tied to high-side rail in load-switch configurations; hosts body diode anode.
Pin 3 (D)	Drain	Power output node; connects to load or inductor; handles -18 A pulsed current within SOA limits.
Pin 4 (S)	Source (redundant)	Second source connection for improved current sharing and thermal path to PCB copper pour.
Pin 5 (D)	Drain (redundant)	Second drain connection enhancing current capacity and reducing package inductance in high-di/dt paths.
Pin 6 (G)	Gate (redundant)	Secondary gate pad to minimize gate loop inductance and suppress oscillation during fast switching.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive applications including temperature cycling, HTRB, and ESD testing per stress test plan.
Low R_DS(ON) × Q_g figure-of-merit	560 mΩ·nC - Optimized for high-efficiency 24 V input DC-DC converters operating >500 kHz.
Fast body diode recovery	t_rr = 17.4 ns, Q_rr = 11.1 nC - Minimizes reverse recovery loss in synchronous rectification mode.
Thermal derating	13.7 mW/°C above +25 °C (PD = 1.7 W @ T_A = +25 °C) - Enables predictable power handling on 25 mm × 25 mm 1 oz copper.
Green compliance	Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb); fully RoHS 2 compliant per EU Directive 2011/65/EU.

Applications

Automotive Body Control Module (BCM)

Industrial 24 V DC-DC Buck Converter

Use Scenario: High-side power switch for LED headlamp drivers and window lift motors in vehicle BCMs.

IC Role / Device Role / Timing Role: P-channel MOSFET configured as load switch with active-low enable; operates in linear and saturated modes during soft-start and steady-state.

Use Value: AEC-Q101 qualification ensures reliability over 15-year vehicle lifetime; -40 V rating accommodates load-dump transients up to ISO 7637-2 Pulse 5a.

Use Scenario: Upper switch in non-isolated buck regulator supplying 5 V/3 A to PLC I/O modules.

IC Role / Device Role / Timing Role: Main power switch synchronized with N-channel low-side FET; driven by dedicated gate driver IC with 5 V logic.

Use Value: 80 mΩ R_DS(ON) and 7 nC Q_g reduce conduction and switching losses, achieving >92% efficiency at 1 MHz switching frequency.

Medical Portable Infusion Pump

Telecom Power Shelf Supervisor

Use Scenario: Battery disconnect switch isolating Li-ion pack during fault conditions in Class II medical devices.

IC Role / Device Role / Timing Role: Fail-safe high-side isolation switch controlled by microcontroller GPIO; activated only during overcurrent or thermal shutdown.

Use Value: Low gate threshold (-1.0 to -3.0 V) enables direct drive from 3.3 V MCU outputs; -55 to +150 °C range supports sterilization and battery compartment temperatures.

Use Scenario: OR-ing diode replacement in redundant 48 V telecom power shelf inputs.

IC Role / Device Role / Timing Role: Back-to-back P-MOSFET pair configured as ideal diode controller interface; conducts only when upstream voltage exceeds downstream by >50 mV.

Use Value: V_SD = -0.86 V reduces forward drop by 350 mV vs. Schottky diode, cutting heat dissipation by >1.4 W per channel at 4 A.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN4050LSDQ-13	R_DS(ON) = 50 mΩ @ V_GS = -10 V; higher ID = -4.5 A; SO-8 package (larger footprint, lower R_θJA = 50 °C/W)	Better thermal performance but requires PCB redesign; not pin-compatible with SOT26	Select when board space allows SO-8 and thermal budget demands <50 °C/W R_θJA.
IPD250N04LG	R_DS(ON) = 2.5 mΩ @ V_GS = -10 V; TO-252 package; 40 V rating; Q_g = 42 nC - 6× higher gate charge	Superior conduction loss but slower switching; unsuitable for >200 kHz designs due to Q_g penalty	Prefer for high-current, low-frequency (<100 kHz) industrial motor drives where gate drive strength is available.

Compared with DMN4050LSDQ-13 and IPD250N04LG, ZXMP4A57E6QTA offers optimal balance of SOT26 compactness, AEC-Q101 compliance, and mid-range R_DS(ON)/Q_g for cost-sensitive automotive and industrial 1 MHz-class DC-DC converters.

Availability

ZXMP4A57E6QTA is available at Aetrix Electronics and suitable for automotive body control modules, industrial 24 V DC-DC converters, and medical portable infusion pumps requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for ZXMP4A57E6QTA 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.

ZXMP4A57E6QTA belongs to Diodes' automotive-qualified PowerMOS™ family, engineered specifically for high-reliability, high-efficiency power switching in harsh-environment applications including engine control, ADAS, and infotainment subsystems.

FAQ

Is ZXMP4A57E6QTA pin-compatible with ZXMP4A57E6TA?

Yes - both share identical SOT26 pinout (G-S-D-S-D-G), same electrical specifications, and identical thermal characteristics. The "Q" suffix denotes AEC-Q101 qualification and PPAP capability; all other parameters, including R_DS(ON), Q_g, and V_BR_DSS, are identical per DS35238 Rev. 3-2.

What is the maximum safe operating frequency for ZXMP4A57E6QTA in a synchronous buck converter?

Based on t_D(off) = 47 ns, t_f = 21 ns, and Q_g = 7 nC @ V_GS = -4.5 V, the device supports reliable operation up to 1.2 MHz with appropriate gate driver (e.g., TC4427) and layout optimization to limit parasitic inductance below 1 nH.

Does ZXMP4A57E6QTA require a gate resistor for stability?

A 10 Ω series gate resistor is recommended to dampen ringing caused by L_g–C_iss resonance, especially when driving from 3.3 V logic. This value balances switching speed (t_r/t_f ~3–5 ns increase) and EMI suppression, as validated in Diodes' AP02002 layout guidelines.

Can ZXMP4A57E6QTA be used in linear regulation mode?

Yes - its SOA curve supports DC operation up to -2.9 A at T_A = +70 °C with derated power (1.1 W). Linear use requires heatsinking or forced airflow due to R_DS(ON)-dominated loss; it is not optimized for LDO-style regulation but viable for short-duration bias or current limiting.

ZXMP4A57E6QTA Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: SOT-23-6

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 40 V

Current - Continuous Drain (Id) @ 25°C:: 2.9A (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 80mOhm @ 4A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 15.8 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 833 pF @ 20 V

FET Feature:: -

Power Dissipation (Max):: 1.1W (Ta)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-26

ZXMP4A57E6QTA FAQ

1.How can I place an order for ZXMP4A57E6QTA through Aetrix?

Please submit a Request for Quotation (RFQ) for ZXMP4A57E6QTA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ZXMP4A57E6QTA reliable?

The price and inventory of ZXMP4A57E6QTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXMP4A57E6QTA is usually 5 days.

3.What payment methods are accepted for ZXMP4A57E6QTA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXMP4A57E6QTA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ZXMP4A57E6QTA?

ZXMP4A57E6QTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ZXMP4A57E6QTA order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ZXMP4A57E6QTA?

For technical support, including ZXMP4A57E6QTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXMP4A57E6QTA requirements.

6.How does Aetrix verify that ZXMP4A57E6QTA is sourced from the original manufacturer or authorized distributors?

All ZXMP4A57E6QTA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ZXMP4A57E6QTA meets industry standards.

7.What is the process for return or replacement of ZXMP4A57E6QTA?

All ZXMP4A57E6QTA units undergo pre-shipment inspection (PSI). If there is an issue with ZXMP4A57E6QTA, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ZXMP4A57E6QTA part is unused and in its original packaging.

Return procedure for ZXMP4A57E6QTA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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