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

Infineon Technologies IPP45P03P4L11AKSA1

Name: IPP45P03P4L11AKSA1
Brand: Infineon Technologies
SKU: IPP45P03P4L11AKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IPP45P03P4L11AKSA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: IPP45P03P4L11AKSA1.pdf

Description:: MOSFET P-CH 30V 45A TO220-3

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Product details

Overview

IPP45P03P4L11AKSA1 from Infineon Technologies is a P-channel logic-level enhancement-mode MOSFET in PG-TO220-3-1 package, rated for -30 V V_DS, 10.8 mΩ R_DS(on) at V_GS = -10 V and I_D = -45 A, with 100% avalanche testing and AEC qualification. It is designed specifically for reverse battery protection in automotive power distribution modules.

For engineers reviewing the IPP45P03P4L11AKSA1 datasheet, IPP45P03P4L11AKSA1 pinout, IPP45P03P4L11AKSA1 application, or IPP45P03P4L11AKSA1 equivalent, key selection criteria include its -45 A continuous drain current at T_C = 25 °C, -1.5 V typical gate threshold voltage, 175 °C maximum junction temperature, and MSL1 reflow compatibility up to 260 °C.

Technical Context

This device operates as a high-side reverse polarity protection switch in 12 V automotive systems. Its logic-level gate drive enables direct interface with microcontroller GPIOs (e.g., 3.3 V or 5 V outputs), while its low R_DS(on) minimizes conduction loss during normal operation and ensures robust fault handling under reverse-battery transients.

The integrated body diode supports controlled freewheeling during load dump events, with verified t_rr = 35 ns and Q_rr = 26 nC. Thermal design is supported by R_thJC = 2.6 K/W and validated safe operating area (SOA) curves for single-pulse avalanche energy up to 110 mJ at T_j = 25 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	-30 V - Maximum blocking voltage for 12 V automotive battery systems with load dump margin
R_DS(on) @ V_GS = -10 V	9.0–11.1 mΩ - Enables ≤0.022 W conduction loss at -45 A, critical for thermal management in enclosed ECUs
I_D (continuous)	-45 A @ T_C = 25 °C - Supports high-current power rails such as engine control unit main supply
V_GS(th)	-1.0 to -2.0 V - Ensures reliable turn-on with standard logic-level drivers without external level shifting
E_AS	110 mJ - Rated single-pulse avalanche energy allows safe clamping of inductive kickback in relay or solenoid circuits
T_j(max)	+175 °C - Enables operation in under-hood environments including transmission control modules
Q_g	42–55 nC - Determines gate drive power requirement; compatible with standard automotive gate drivers (e.g., TLE7183)

Pinout & Package

IPP45P03P4L11AKSA1 uses the PG-TO220-3-1 package: a through-hole, thermally enhanced 3-pin outline with isolated tab (drain-connected). The case is electrically connected to the drain terminal, requiring insulated mounting hardware when mounted to grounded heatsinks.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Source)	Source terminal (S)	Reference node for gate drive; connects to battery positive in reverse-battery protection topology
Pin 2 (Gate)	Control input (G)	Logic-level input accepting -10 V max; requires <1 µA leakage current for low-power MCU interfacing
Pin 3 (Drain)	Power output / Drain (D)	Connects to protected load; tab is electrically tied to this pin and must be thermally coupled to heatsink

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications per stress test requirements including temperature cycling, HTRB, and UHAST
100% avalanche tested	Each unit undergoes single-pulse avalanche stress at I_AS = -45 A, ensuring SOA reliability in real-world fault conditions
MSL1 rating	Suitable for lead-free reflow up to 260 °C peak, enabling compatibility with modern SMT assembly lines even for through-hole variants
Green Product (RoHS)	Lead-free terminations and halogen-free molding compound meet EU Directive 2011/65/EU and IPC-1752A reporting standards
OptiMOS®-P2 technology	Optimized trench structure delivers lower R_DS(on) × Q_g figure-of-merit than prior-generation P-channel MOSFETs

Applications

Engine Control Unit (ECU) Power Input

Body Control Module (BCM) Reverse Polarity Protection

Use Scenario: 12 V battery feed to ECU main power rail exposed to jump-start reversal risk.

IC Role / Device Role / Timing Role: High-side P-channel MOSFET acting as active reverse-polarity switch; conducts only when battery polarity is correct.

Use Value: Prevents catastrophic damage to downstream DC/DC converters and microcontrollers during service errors, with <100 µs response time and no series diode voltage drop.

Use Scenario: Centralized power distribution in BCM managing door locks, lighting, and HVAC actuators.

IC Role / Device Role / Timing Role: Reverse-battery protection element placed upstream of primary fuse block and load switches.

Use Value: Eliminates need for Schottky diode-based solutions, reducing heat generation by >70 % and enabling compact PCB layout in space-constrained modules.

Transmission Control Module (TCM)

Advanced Driver Assistance Systems (ADAS) Camera Power Supply

Use Scenario: Under-hood TCM subjected to extreme ambient temperatures and vibration-induced wiring faults.

IC Role / Device Role / Timing Role: Primary reverse-polarity barrier before DC/DC regulation and CAN transceivers.

Use Value: Maintains functional integrity up to +175 °C junction temperature and survives 1000+ thermal cycles between -40 °C and +125 °C ambient.

Use Scenario: Front-facing ADAS camera module powered directly from vehicle battery with minimal filtering.

IC Role / Device Role / Timing Role: First-line protection against reverse connection during field replacement or service.

Use Value: Enables zero-voltage-drop power path with <1.3 V forward diode drop during freewheeling, preserving voltage headroom for image sensor and ISP ICs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar reverse-battery protection applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IPB45P03P4L11AKSA1	PG-TO263-3-2 package, R_DS(on) = 10.8 mΩ (SMD), same die	Surface-mount variant; better thermal performance on PCB with 6 cm² copper pour	Select for automated assembly and higher power density designs
IPI45P03P4L11AKSA1	PG-TO262-3-1 package, identical R_DS(on) and SOA, non-isolated tab	Through-hole alternative with lower profile; requires non-insulated heatsink mounting	Select for legacy board layouts where TO-220 footprint is unavailable

Compared with IPB45P03P4L11AKSA1 and IPI45P03P4L11AKSA1, IPP45P03P4L11AKSA1 offers optimal thermal resistance (R_thJC = 2.6 K/W) in the most widely adopted TO-220 form factor, balancing ease of manual repair, heatsink compatibility, and cost-effective volume production.

Availability

IPP45P03P4L11AKSA1 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and transmission control modules requiring stable component supply across extended product lifecycles.

Supply support for IPP45P03P4L11AKSA1 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

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and security solutions, with global R&D and manufacturing infrastructure.

This part belongs to the OptiMOS®-P2 P-channel MOSFET product line, engineered for high-efficiency reverse-battery protection and high-side switching in 12 V and 24 V automotive systems.

FAQ

What is the maximum allowable gate-source voltage for IPP45P03P4L11AKSA1?

The absolute maximum V_GS is -16 V. Operation beyond this rating risks permanent gate oxide damage. For reliable logic-level drive, use V_GS between -4.5 V and -10 V; the device achieves full enhancement at -10 V with R_DS(on) ≤ 11.1 mΩ. Gate drive circuits must include clamping (e.g., Zener diode) if sourced from unregulated supplies.

Does IPP45P03P4L11AKSA1 require a heatsink in typical automotive applications?

Yes - a heatsink is required for continuous operation above ~15 A at ambient temperatures >70 °C. With R_thJC = 2.6 K/W and R_thCA ≈ 62 K/W (leaded), junction temperature exceeds 175 °C at 45 A without thermal management. A 25 cm² aluminum heatsink reduces R_thCA to ~25 K/W, enabling full-rated current at 85 °C ambient.

Can IPP45P03P4L11AKSA1 be used in 24 V commercial vehicle systems?

No - its -30 V V_DS rating provides insufficient margin for 24 V system transients (ISO 7637-2 Pulse 1/2b can exceed -40 V). For 24 V applications, select devices with ≥ -60 V rating such as IPP60P04P4L or IPB80P04P4-03. Using this part in 24 V systems risks avalanche failure during load dump events.

Is the body diode in IPP45P03P4L11AKSA1 suitable for freewheeling inductive loads?

Yes - the integrated body diode is characterized for reverse recovery (t_rr = 35 ns, Q_rr = 26 nC) and rated for -45 A continuous forward current. It supports controlled freewheeling in relay drivers and solenoid controls, but external Schottky diodes are recommended for high-frequency PWM (>10 kHz) to minimize switching losses and EMI.

IPP45P03P4L11AKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OptiMOS™

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

FET Type:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 45A (Tc)

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

Rds On (Max) @ Id, Vgs:: 11.1mOhm @ 45A, 10V

Vgs(th) (Max) @ Id:: 2V @ 85µA

Gate Charge (Qg) (Max) @ Vgs:: 55 nC @ 10 V

Vgs (Max):: +5V, -16V

Input Capacitance (Ciss) (Max) @ Vds:: 3770 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 58W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO220-3-1

IPP45P03P4L11AKSA1 FAQ

1.How can I place an order for IPP45P03P4L11AKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IPP45P03P4L11AKSA1 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 IPP45P03P4L11AKSA1 reliable?

The price and inventory of IPP45P03P4L11AKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IPP45P03P4L11AKSA1 is usually 5 days.

3.What payment methods are accepted for IPP45P03P4L11AKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IPP45P03P4L11AKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IPP45P03P4L11AKSA1?

IPP45P03P4L11AKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IPP45P03P4L11AKSA1 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 IPP45P03P4L11AKSA1?

For technical support, including IPP45P03P4L11AKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IPP45P03P4L11AKSA1 requirements.

6.How does Aetrix verify that IPP45P03P4L11AKSA1 is sourced from the original manufacturer or authorized distributors?

All IPP45P03P4L11AKSA1 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 IPP45P03P4L11AKSA1 meets industry standards.

7.What is the process for return or replacement of IPP45P03P4L11AKSA1?

All IPP45P03P4L11AKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IPP45P03P4L11AKSA1, 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 IPP45P03P4L11AKSA1 part is unused and in its original packaging.

Return procedure for IPP45P03P4L11AKSA1:

1.Submit a request within 90 days.

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

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