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

Vishay Siliconix SUD45P03-10-E3

Name: SUD45P03-10-E3
Brand: Vishay Siliconix
SKU: SUD45P03-10-E3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SUD45P03-10-E3

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: SUD45P03-10-E3.pdf

Description:: MOSFET P-CH 30V TO252

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Product details

Overview

SUD45P03-10-E3 from Vishay Siliconix is a P-channel enhancement-mode TrenchFET® MOSFET rated for -30 V drain-source voltage, 0.010 Ω R_DS(on) at V_GS = -10 V and I_D = -15 A, and housed in a TO-252 (DPAK) surface-mount package. It serves as a high-current load switch or reverse-polarity protection device in 12 V/24 V DC power distribution systems.

For engineers reviewing the SUD45P03-10-E3 datasheet, SUD45P03-10-E3 pinout, SUD45P03-10-E3 application, or SUD45P03-10-E3 equivalent, key selection criteria include its low R_DS(on) at 4.5 V gate drive, robust pulsed current capability (-100 A), thermal resistance (R_thJA = 30 °C/W), and RoHS-compliant lead-free construction.

Technical Context

This device uses trench-gate silicon technology to achieve low on-resistance and fast switching with controlled Q_g (90–150 nC) and low Crss (700 pF). Its gate threshold voltage range of -1.0 V to -3.0 V enables reliable turn-on with standard logic-level negative gate drive.

The integrated body diode supports synchronous rectification and reverse-current blocking, with V_SD = 1.0–1.5 V at -45 A and t_rr = 55–100 ns. Thermal design is supported by direct tab-to-PCB heat transfer via the exposed drain pad in the TO-252 package.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	-30 V - Maximum blocking voltage for 24 V automotive and industrial bus applications
R_DS(on) @ V_GS = -10 V	0.010 Ω - Enables <1.5 W conduction loss at 12 A continuous current
R_DS(on) @ V_GS = -4.5 V	0.018 Ω - Supports logic-level gate drive without level-shifting circuitry
I_D Continuous @ T_A = 25 °C	-15 A - Rated for sustained operation with adequate PCB copper area
Q_g Total Gate Charge	90–150 nC - Determines required gate driver peak current for <100 ns switching transitions
R_thJA	30 °C/W - Defines minimum 2-in² 2-oz copper pad requirement for 70 W dissipation at ambient
V_GS(th)	-1.0 to -3.0 V - Ensures predictable turn-on with ±5 V control signals

Pinout & Package

Package: TO-252 (DPAK), surface-mount, drain-connected tab for thermal and electrical connection to PCB ground plane.

Pin/Terminal	Circuit Role	Design Meaning
Source (S)	Current return path for load current	Connected to system ground or low-side reference; carries full load current
Gate (G)	Control terminal for channel conduction	High-impedance input requiring <100 nA leakage; driven by negative voltage relative to source
Drain (D)	Main current-carrying terminal (tab-connected)	Electrically and thermally tied to exposed metal tab; must be routed to high-side supply or load input

Key Features

Feature	Design Value
TrenchFET® process technology	Delivers industry-leading R_DS(on) × Q_g figure-of-merit for efficient switching at 100 kHz–1 MHz
Lead (Pb)-free and RoHS-compliant	Meets IPC/JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) for standard reflow assembly
Low gate threshold voltage range	Enables use with microcontroller GPIOs or simple inverting drivers without external bias networks
High pulsed current rating	Supports surge handling up to -100 A for motor startup, hot-swap, or inrush limiting

Applications

Reverse Polarity Protection	DC Motor Control
Use Scenario: Prevents damage when battery or power supply leads are accidentally reversed in 12 V/24 V vehicle accessories or portable equipment. IC Role / Device Role / Timing Role: High-side P-channel MOSFET configured as ideal diode replacement with near-zero forward drop. Use Value: Reduces power loss by >80% versus Schottky diode solution; eliminates heat sink requirement at 10 A.	Use Scenario: Controls direction and braking of brushed DC motors in automotive HVAC actuators and seat adjusters. IC Role / Device Role / Timing Role: Low-side or high-side switch in H-bridge half-bridge configuration with fast turn-off for regenerative braking. Use Value: 55–100 ns reverse recovery time enables clean commutation without shoot-through risk.
Hot-Swap Circuitry	Power OR-ing
Use Scenario: Enables safe insertion/removal of FRU modules in telecom line cards and server backplanes operating from -48 V DC. IC Role / Device Role / Timing Role: Inrush-limiting switch with controlled dV/dt via gate resistor; handles repeated 100 A pulses. Use Value: 100 A pulsed rating and 1.8 °C/W junction-to-case resistance support transient overload without thermal runaway.	Use Scenario: Selects between redundant -24 V power supplies in industrial PLCs and rail signaling systems. IC Role / Device Role / Timing Role: Back-to-back P-channel configuration for bidirectional blocking and seamless switchover. Use Value: Matched V_GS(th) tolerance ensures balanced current sharing; low R_DS(on) minimizes cross-conduction losses.

Reverse Polarity Protection

DC Motor Control

Use Scenario: Prevents damage when battery or power supply leads are accidentally reversed in 12 V/24 V vehicle accessories or portable equipment.

IC Role / Device Role / Timing Role: High-side P-channel MOSFET configured as ideal diode replacement with near-zero forward drop.

Use Value: Reduces power loss by >80% versus Schottky diode solution; eliminates heat sink requirement at 10 A.

Use Scenario: Controls direction and braking of brushed DC motors in automotive HVAC actuators and seat adjusters.

IC Role / Device Role / Timing Role: Low-side or high-side switch in H-bridge half-bridge configuration with fast turn-off for regenerative braking.

Use Value: 55–100 ns reverse recovery time enables clean commutation without shoot-through risk.

Hot-Swap Circuitry

Power OR-ing

Use Scenario: Enables safe insertion/removal of FRU modules in telecom line cards and server backplanes operating from -48 V DC.

IC Role / Device Role / Timing Role: Inrush-limiting switch with controlled dV/dt via gate resistor; handles repeated 100 A pulses.

Use Value: 100 A pulsed rating and 1.8 °C/W junction-to-case resistance support transient overload without thermal runaway.

Use Scenario: Selects between redundant -24 V power supplies in industrial PLCs and rail signaling systems.

IC Role / Device Role / Timing Role: Back-to-back P-channel configuration for bidirectional blocking and seamless switchover.

Use Value: Matched V_GS(th) tolerance ensures balanced current sharing; low R_DS(on) minimizes cross-conduction losses.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRF4905PBF	R_DS(on) = 0.020 Ω @ -10 V; higher Q_g (140 nC); TO-220 package	Larger footprint and lower thermal efficiency; requires heatsink above 5 A	Choose when through-hole mounting or legacy board compatibility is required
DMT6009LPS-13	R_DS(on) = 0.0095 Ω @ -10 V; smaller PowerPAK SO-8 package; lower I_D rating (-12 A)	Lower current capacity but superior power density; not suitable for >12 A continuous loads	Choose for space-constrained designs where peak current stays below 12 A

Compared with IRF4905PBF and DMT6009LPS-13, the SUD45P03-10-E3 delivers optimal balance of low R_DS(on), high pulse current headroom, and TO-252 thermal performance-making it preferred for 10–15 A surface-mount power switches where layout area and thermal management are jointly constrained.

Availability

SUD45P03-10-E3 is available at Aetrix Electronics and suitable for automotive body electronics, industrial power supplies, and telecom hot-swap modules requiring stable component supply and long-term manufacturability.

Supply support for SUD45P03-10-E3 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

Vishay Siliconix is a global leader in discrete semiconductors, specializing in high-performance MOSFETs, diodes, and optoelectronics with emphasis on reliability and power efficiency.

The SUD45P03-10-E3 belongs to Vishay's TrenchFET® Gen III P-channel portfolio, engineered for high-current, low-voltage DC power switching in automotive, industrial, and communications infrastructure.

FAQ

What is the maximum continuous drain current for SUD45P03-10-E3 at 100 °C ambient temperature?

The SUD45P03-10-E3 supports -8 A continuous drain current at T_A = 100 °C, as specified in its Absolute Maximum Ratings table. This derating reflects thermal limits under standard FR4 board conditions with limited copper area. For higher current operation at elevated ambient, PCB layout with enhanced thermal vias and larger copper pour is required to maintain junction temperature below 150 °C.

Does SUD45P03-10-E3 require a gate driver IC for typical switching applications?

The SUD45P03-10-E3 can be driven directly by microcontroller GPIOs when used in low-frequency (<10 kHz), low-duty-cycle applications due to its -1.0 to -3.0 V gate threshold. However, for efficient 100 kHz+ PWM switching, a dedicated negative-voltage gate driver is recommended to ensure fast turn-on/turn-off and minimize switching losses, especially given its 90–150 nC total gate charge.

Is SUD45P03-10-E3 suitable for reverse battery protection in automotive 12 V systems?

Yes, the SUD45P03-10-E3 is widely deployed for reverse polarity protection in 12 V automotive systems. Its -30 V V_DS, low 0.010 Ω R_DS(on), and -100 A pulsed rating handle cold-crank transients and jump-start surges. The TO-252 package allows direct mounting to chassis ground for optimal thermal and EMI performance in vehicle ECUs and infotainment modules.

How does the body diode performance of SUD45P03-10-E3 compare to discrete Schottky diodes?

The SUD45P03-10-E3 body diode has V_SD = 1.0–1.5 V at -45 A and t_rr = 55–100 ns, which is slower and higher-drop than most Schottky diodes. However, its integration eliminates discrete component count and PCB area. For applications requiring ultra-low forward drop or high-frequency freewheeling, an external Schottky remains preferable-but for cost-sensitive, moderate-frequency reverse-current blocking, the integrated diode is sufficient and robust.

What is the moisture sensitivity level (MSL) rating for SUD45P03-10-E3?

The SUD45P03-10-E3 is rated MSL1 per IPC/JEDEC J-STD-020, meaning it is not moisture-sensitive and may be stored indefinitely at ambient conditions without dry-pack requirements. This simplifies manufacturing logistics and eliminates bake-out steps prior to reflow soldering, supporting high-yield automated assembly in volume production environments.

SUD45P03-10-E3 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: TrenchFET®

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 15A (Ta)

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

Rds On (Max) @ Id, Vgs:: 10mOhm @ 15A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 150 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 6000 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 4W (Ta), 70W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252AA

SUD45P03-10-E3 FAQ

1.How can I place an order for SUD45P03-10-E3 through Aetrix?

Please submit a Request for Quotation (RFQ) for SUD45P03-10-E3 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 SUD45P03-10-E3 reliable?

The price and inventory of SUD45P03-10-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SUD45P03-10-E3 is usually 5 days.

3.What payment methods are accepted for SUD45P03-10-E3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SUD45P03-10-E3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SUD45P03-10-E3?

SUD45P03-10-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SUD45P03-10-E3 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 SUD45P03-10-E3?

For technical support, including SUD45P03-10-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SUD45P03-10-E3 requirements.

6.How does Aetrix verify that SUD45P03-10-E3 is sourced from the original manufacturer or authorized distributors?

All SUD45P03-10-E3 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 SUD45P03-10-E3 meets industry standards.

7.What is the process for return or replacement of SUD45P03-10-E3?

All SUD45P03-10-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SUD45P03-10-E3, 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 SUD45P03-10-E3 part is unused and in its original packaging.

Return procedure for SUD45P03-10-E3:

1.Submit a request within 90 days.

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

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