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

Diodes Incorporated DMP6185SE-7

Name: DMP6185SE-7
Brand: Diodes Incorporated
SKU: DMP6185SE-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMP6185SE-7

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

Package:: TO-261-4, TO-261AA

Datasheet:: DMP6185SE-7.pdf

Description:: MOSFET P-CH 60V 3A SOT223

Quantity:: RFQ Add To RFQ list

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Inventory:6,106

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Product details

Overview

DMP6185SE-7 from Diodes Incorporated is a 60V P-channel enhancement-mode MOSFET in SOT223 package, rated for -3A continuous drain current at V_GS = -10V, with R_DS(ON) = 150 mΩ (typ. 110 mΩ), optimized for high-efficiency DC-DC converters and motor control circuits where low conduction loss and fast switching are required.

For engineers reviewing the DMP6185SE-7 datasheet, DMP6185SE-7 pinout, DMP6185SE-7 application, or DMP6185SE-7 equivalent, this part supports design of compact, thermally efficient power switches in industrial and embedded systems requiring robust UIS performance, RoHS-compliant "Green" packaging, and stable operation from -55°C to +150°C.

Technical Context

This P-channel MOSFET operates with gate threshold voltage V_GS(TH) between -1 V and -3 V, enabling reliable turn-on with standard logic-level drive at -4.5 V (R_DS(ON) = 185 mΩ) or enhanced efficiency at -10 V (R_DS(ON) = 150 mΩ). Its 100% production-tested UIS capability supports rugged inductive load handling.

Thermal performance is defined by R_θJA = 60 °C/W (with 1-inch² copper pad) and R_θJC = 7.6 °C/W, allowing sustained 1.4 W dissipation at +70°C ambient. Dynamic parameters include Q_g = 14 nC at V_GS = -10 V and t_F = 39 ns, supporting high-frequency switching up to several hundred kHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	-60 V - Withstands reverse-biased drain-source voltage up to 60 V without breakdown.
R_DS(ON) @ V_GS = -10 V	150 mΩ (max), 110 mΩ (typ.) - Enables <1.4 W conduction loss at -2.2 A, critical for thermal management.
I_D (continuous)	-3 A @ T_A = +25°C - Supports medium-power load switching in space-constrained PCB layouts.
Q_g	14 nC @ V_GS = -10 V - Determines gate drive energy requirement and switching transition time.
t_F	39 ns - Limits turn-off delay in PWM-controlled power stages, reducing switching losses.
E_AS	13 mJ - Quantifies single-pulse avalanche energy handling, essential for inductive load reliability.
T_J range	-55°C to +150°C - Ensures functionality across automotive under-hood and industrial ambient conditions.

Pinout & Package

Package: SOT223 - Surface-mount plastic package with exposed drain tab for thermal conduction and mechanical anchoring; 0.112 g mass; UL 94V-0 rated molding compound.

Pin/Terminal	Circuit Role	Design Meaning
Drain (D)	Main current-carrying terminal (connected to internal die substrate)	Exposed metal tab on bottom surface - must be soldered to large copper pour for thermal and electrical connection.
Source (S)	Reference node for gate control and return path for load current	Electrically tied to PCB ground plane in high-side switch configurations; defines V_GS reference.
Gate (G)	Control electrode modulating channel conductivity	High-impedance input requiring low-charge drive; sensitive to ESD; layout must minimize trace inductance.

Key Features

Feature	Design Value
100% UIS tested in production	Guarantees survivability under unclamped inductive switching events (L = 0.1 mH, T_A = +25°C), eliminating need for external snubbers in motor drives.
Low R_DS(ON) at -4.5 V	185 mΩ max enables use with 5 V or 3.3 V microcontroller GPIOs without level-shifting, simplifying gate drive design.
Fast switching (t_F = 39 ns)	Reduces transition-time losses in high-frequency DC-DC topologies, improving overall converter efficiency above 200 kHz.
Halogen- and antimony-free "Green" construction	Meets <900 ppm Br/Cl (<1500 ppm total), <1000 ppm Sb - compliant with global environmental directives including RoHS 3.
SOT223 thermal resistance	R_θJC = 7.6 °C/W - Allows direct heat transfer from junction to heatsink via drain tab, supporting >1 W continuous operation with minimal board area.

Applications

Motor Control

DC-DC Converters

Use Scenario: H-bridge half-bridge high-side switch in 24 V brushed DC motor drivers for industrial actuators.

IC Role / Device Role / Timing Role: P-channel MOSFET providing controlled current sourcing to motor winding during active-high PWM phase.

Use Value: Low R_DS(ON) minimizes I²R heating at 2.7 A peak load; UIS rating prevents failure during motor back-EMF transients.

Use Scenario: Synchronous buck converter output stage in point-of-load (POL) regulator for FPGA core supply (1.2 V @ 3 A).

IC Role / Device Role / Timing Role: High-side switch controlling energy transfer from input to output inductor during ON-time.

Use Value: Fast t_F and low Q_g reduce switching losses at 500 kHz; thermal design supports 1.4 W dissipation on standard FR-4.

Transformer Driving Switch

Uninterruptible Power Supply

Use Scenario: Gate-drive transformer primary-side switch in isolated flyback or forward converter for AC/DC adapters.

IC Role / Device Role / Timing Role: Fast-turning P-MOSFET delivering precise square-wave excitation to transformer primary winding.

Use Value: Low Crss (32 pF) limits Miller-induced shoot-through risk; tight V_GS(TH) distribution ensures consistent turn-on timing.

Use Scenario: Battery backup path switch in offline UPS systems managing 48 V Li-ion string connection to inverter input.

IC Role / Device Role / Timing Role: Reverse-polarity protection and load-disconnect switch activated during mains failure or overvoltage events.

Use Value: -60 V V_DSS withstands battery float voltage plus surge margin; 150°C T_J(max) sustains operation during extended backup runtime.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMG6968U-7	60 V, -3.5 A, R_DS(ON) = 90 mΩ @ -4.5 V; SOT-23 package; lower thermal mass, higher R_θJA = 250 °C/W	Better R_DS(ON) at logic-level drive but limited to <0.5 W continuous due to package; unsuitable for >1 A sustained loads	Select when board space is critical and power dissipation remains below 0.4 W; avoid for motor or UPS applications.
SI2301DDS-T1-GE3	20 V, -2.7 A, R_DS(ON) = 115 mΩ @ -4.5 V; SOT-23; not rated for >30 V operation	Lower voltage rating restricts use to 12 V systems only; lacks UIS testing and automotive qualification path	Choose only for cost-sensitive 12 V logic-level switching where 60 V derating is unnecessary and avalanche robustness is not required.

Compared with DMG6968U-7 and SI2301DDS-T1-GE3, DMP6185SE-7 delivers superior thermal capability and 60 V ruggedness at the expense of larger footprint-making it the preferred choice for industrial power stages demanding both voltage margin and sustained power handling.

Availability

DMP6185SE-7 is available at Aetrix Electronics and suitable for motor control, DC-DC converters, and uninterruptible power supply designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant "Green" manufacturing.

Supply support for DMP6185SE-7 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, manufacturing, and sales operations across Asia, Europe, and North America.

DMP6185SE-7 belongs to Diodes' high-reliability power MOSFET product line, engineered specifically for industrial and embedded power management applications demanding ruggedness, thermal efficiency, and environmental compliance.

FAQ

What is the maximum continuous drain current for DMP6185SE-7 at +70°C ambient?

The maximum continuous drain current is -2.4 A at T_A = +70°C when mounted on an FR-4 PCB with minimum recommended pad layout (PD = 0.8 W, R_θJA = 104 °C/W). With a 1-inch² copper pad, the rating improves to -2.7 A (PD = 1.4 W, R_θJA = 60 °C/W).

Does DMP6185SE-7 support logic-level gate drive?

Yes - DMP6185SE-7 specifies R_DS(ON) = 185 mΩ (max) at V_GS = -4.5 V and ID = -1.8 A, making it compatible with 5 V or 3.3 V microcontroller outputs without external level shifting, though gate charge (Q_g = 6.2 nC at -4.5 V) must be considered for drive strength.

Is DMP6185SE-7 qualified for automotive applications?

No - DMP6185SE-7 is not AEC-Q101 qualified. Diodes offers the automotive-grade variant DMP6185SEQ, which undergoes additional stress testing, PPAP documentation, and is manufactured in IATF 16949-certified facilities; consult Diodes' automotive product definitions page for qualification details.

How is thermal performance affected by PCB layout?

Thermal resistance drops from R_θJA = 104 °C/W (minimum pad) to 60 °C/W with a 1-inch² copper pad - a 42% improvement. The exposed drain tab must be fully soldered to an internal or external copper plane; insufficient solder coverage or undersized thermal vias directly degrade junction-to-ambient performance.

DMP6185SE-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

FET Type:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 60 V

Current - Continuous Drain (Id) @ 25°C:: 3A (Ta)

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

Rds On (Max) @ Id, Vgs:: 150mOhm @ 2.2A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 14 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 708 pF @ 30 V

FET Feature:: -

Power Dissipation (Max):: 1.2W (Ta)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223-3

DMP6185SE-7 FAQ

1.How can I place an order for DMP6185SE-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMP6185SE-7 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 DMP6185SE-7 reliable?

The price and inventory of DMP6185SE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP6185SE-7 is usually 5 days.

3.What payment methods are accepted for DMP6185SE-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP6185SE-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMP6185SE-7?

DMP6185SE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMP6185SE-7 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 DMP6185SE-7?

For technical support, including DMP6185SE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP6185SE-7 requirements.

6.How does Aetrix verify that DMP6185SE-7 is sourced from the original manufacturer or authorized distributors?

All DMP6185SE-7 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 DMP6185SE-7 meets industry standards.

7.What is the process for return or replacement of DMP6185SE-7?

All DMP6185SE-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMP6185SE-7, 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 DMP6185SE-7 part is unused and in its original packaging.

Return procedure for DMP6185SE-7:

1.Submit a request within 90 days.

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

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