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

Diodes Incorporated DMT15H035SCT

Name: DMT15H035SCT
Brand: Diodes Incorporated
SKU: DMT15H035SCT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMT15H035SCT

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: DMT15H035SCT.pdf

Description:: MOSFET BVDSS: 101V~250V TO220AB

Quantity:: RFQ Add To RFQ list

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Inventory:2,232

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Product details

Overview

DMT15H035SCT from Diodes Incorporated is a 150V N-channel enhancement-mode MOSFET in TO220AB package, rated for 46A continuous drain current at TC = +25°C, with R_DS(ON) = 35 mΩ @ V_GS = 10V and low gate charge (Q_g = 25 nC). It delivers robust unclamped inductive switching (IAS = 17 A, EAS = 144.5 mJ) and supports high-efficiency DC-DC converters and LED backlighting systems.

For engineers reviewing the DMT15H035SCT datasheet, DMT15H035SCT pinout, DMT15H035SCT application, or DMT15H035SCT equivalent, key selection criteria include its 150V BVDSS rating, 35 mΩ on-resistance at 10V drive, thermal resistance R_θJC = 0.75 °C/W, avalanche capability, and TO220AB mechanical compatibility with standard heatsink mounting.

Technical Context

This MOSFET employs planar silicon process technology optimized for high-voltage power switching, featuring a fully rated 150V drain-source breakdown voltage and gate threshold voltage (V_GS(TH)) of 2–4 V. Its low output capacitance (C_oss = 160 pF) and reverse transfer capacitance (C_rss = 4.2 pF) support fast turn-off and reduced Miller effect in hard-switched topologies.

The device integrates an intrinsic body diode with V_SD = 0.9–1.0 V @ I_S = 20A and t_RR = 53 ns, enabling synchronous rectification and freewheeling in buck and flyback converters. Thermal design is anchored to R_θJC = 0.75 °C/W, allowing 166 W power dissipation with proper case heatsinking.

Key Specifications

Parameter	Value and Actual Design Meaning
BVDSS	150 V - Withstands up to 150 V drain-source blocking voltage before avalanche conduction.
RDS(ON) Max	35 mΩ @ VGS = 10V - Enables <1.6 W conduction loss at 46 A, critical for high-current power stages.
ID Max (TC = 25°C)	46 A - Supports high-output DC-DC stages without parallel devices in thermally managed designs.
Qg	25 nC - Reduces gate driver power demand and switching transition time in 100–500 kHz applications.
EAS	144.5 mJ - Guarantees reliable operation under inductive load switching without external snubbers.
RθJC	0.75 °C/W - Allows direct thermal path to heatsink; enables >100 W continuous operation with modest heatsink.
VGS(TH)	2–4 V - Ensures clean turn-on with standard 3.3 V or 5 V logic-level gate drivers.

Pinout & Package

Package: TO220AB - Through-hole, single-ended, insulated tab, with exposed drain pad for thermal and electrical connection to heatsink. Molded green plastic housing (UL 94V-0), matte tin annealed terminals solderable per MIL-STD-202.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main current path output / heatsink interface	Electrically and thermally connected to metal tab; must be isolated from chassis unless referenced to system ground.
Source	Reference node for gate control and current return	Low-inductance connection point for sense resistor placement and gate driver reference return path.
Gate	Control input for channel modulation	High-impedance terminal requiring low-impedance gate driver and local decoupling to suppress ringing.

Key Features

Feature	Design Value
100% Unclamped Inductive Switching (UIS)	Validated to 144.5 mJ energy - eliminates need for external clamping circuits in motor drives and solenoid controls.
Low Qg (25 nC)	Reduces gate driver losses and enables efficient operation at 300–500 kHz in compact SMPS designs.
RoHS 3 & Halogen-Free	Complies with EU Directive 2015/863/EU and Diodes' "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb).
Thermal RθJC = 0.75 °C/W	Supports high-power density layouts where PCB copper area is limited and heatsink attachment is primary cooling path.
Body Diode tRR = 53 ns	Enables use in synchronous rectification and bidirectional power flow without external Schottky replacement.

Applications

DC-DC Buck Converter

LED Backlight Driver

Use Scenario: High-efficiency 12–48 V input to 5–24 V output step-down converter for industrial HMIs and telecom power modules.

IC Role / Device Role / Timing Role: Primary high-side switching element operating at 250–400 kHz with synchronous rectification.

Use Value: 35 mΩ R_DS(ON) minimizes conduction loss at 30–45 A load; low Q_g reduces gate drive overhead and improves light-load efficiency.

Use Scenario: Constant-current LED string driver for automotive center console and infotainment displays.

IC Role / Device Role / Timing Role: PWM-controlled high-side switch regulating current through 4–8 series-connected LEDs.

Use Value: 150 V BVDSS accommodates transient surges in vehicle battery systems; UIS rating ensures reliability during LED open-circuit fault events.

Industrial Motor Control

AC-DC PFC Stage

Use Scenario: Half-bridge leg in 100–500 W brushless DC motor controllers for HVAC blowers and pumps.

IC Role / Device Role / Timing Role: Low-side switching element handling commutation current with fast body diode recovery.

Use Value: 53 ns t_RR and low C_rss reduce shoot-through risk and EMI during dead-time transitions.

Use Scenario: Boost switch in active front-end PFC circuits for server PSUs and medical AC adapters.

IC Role / Device Role / Timing Role: Main switching transistor in continuous conduction mode (CCM) boost topology.

Use Value: 166 W PD rating and 0.75 °C/W R_θJC allow stable operation at full load without derating in compact enclosures.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage, high-current MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP150N10F7	100V BVDSS, 3.2 mΩ RDS(ON), TO220FP package (isolated tab)	Limited to ≤100 V systems; lower RDS(ON) but higher voltage stress margin required	Select when lower conduction loss dominates and system voltage stays ≤80 V.
IXTP150N10T	100V BVDSS, 4.2 mΩ RDS(ON), TO220 package, no UIS rating specified	Not validated for unclamped inductive loads; requires external protection in motor/solenoid apps	Prefer only in non-inductive, well-clamped switching environments with tight RDS(ON) requirements.

Compared with STP150N10F7 and IXTP150N10T, DMT15H035SCT uniquely combines 150 V rating, 35 mΩ on-resistance, and guaranteed UIS performance-making it the only choice for 120–150 V bus applications demanding ruggedness without added protection circuitry.

Availability

DMT15H035SCT is available at Aetrix Electronics and suitable for DC-DC converters, LED backlight drivers, and industrial motor control systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from certified manufacturing facilities.

Supply support for DMT15H035SCT 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 for industrial, computing, and automotive markets.

DMT15H035SCT belongs to Diodes' high-voltage PowerMOS™ portfolio, engineered specifically for rugged, high-efficiency switching in 100–200 V power conversion applications where avalanche capability and thermal robustness are mandatory.

FAQ

What is the maximum safe operating junction temperature for DMT15H035SCT?

The absolute maximum junction temperature is +150°C, and the device is characterized across –55°C to +150°C. Derating begins above +125°C ambient in typical TO220AB mounting configurations; thermal design must ensure TJ remains ≤150°C under worst-case power dissipation and ambient conditions.

Does DMT15H035SCT support logic-level gate drive?

No-it requires ≥4.5 V V_GS for full enhancement, with V_GS(TH) ranging from 2.0–4.0 V. At 5 V drive, R_DS(ON) rises significantly versus 10 V; optimal performance demands 10 V gate drive with ±20 V rating compliance.

Can DMT15H035SCT replace older TO220 MOSFETs like IRF640 in existing designs?

Yes, with verification: DMT15H035SCT matches IRF640's pinout and package but offers superior specs-150 V vs. 200 V BVDSS (lower), yet 35 mΩ vs. 180 mΩ R_DS(ON), plus 100% UIS validation. Layout changes may be needed for thermal management due to higher current density.

Is DMT15H035SCT qualified for automotive applications?

Not by default-the datasheet states automotive qualification (AEC-Q101) requires specific change control and PPAP capability. Standard DMT15H035SCT is industrial-grade; automotive-grade variants must be requested separately through Diodes' automotive sales channel.

DMT15H035SCT Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-220-3

Packaging:: Bulk

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 150 V

Current - Continuous Drain (Id) @ 25°C:: 46A (Tc)

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

Rds On (Max) @ Id, Vgs:: 35mOhm @ 20A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 25 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1600 pF @ 75 V

FET Feature:: -

Power Dissipation (Max):: 2.2W (Ta)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220-3

DMT15H035SCT FAQ

1.How can I place an order for DMT15H035SCT through Aetrix?

Please submit a Request for Quotation (RFQ) for DMT15H035SCT 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 DMT15H035SCT reliable?

The price and inventory of DMT15H035SCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMT15H035SCT is usually 5 days.

3.What payment methods are accepted for DMT15H035SCT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMT15H035SCT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMT15H035SCT?

DMT15H035SCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMT15H035SCT 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 DMT15H035SCT?

For technical support, including DMT15H035SCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMT15H035SCT requirements.

6.How does Aetrix verify that DMT15H035SCT is sourced from the original manufacturer or authorized distributors?

All DMT15H035SCT 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 DMT15H035SCT meets industry standards.

7.What is the process for return or replacement of DMT15H035SCT?

All DMT15H035SCT units undergo pre-shipment inspection (PSI). If there is an issue with DMT15H035SCT, 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 DMT15H035SCT part is unused and in its original packaging.

Return procedure for DMT15H035SCT:

1.Submit a request within 90 days.

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

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