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

Infineon Technologies IRFPS3815PBF

Name: IRFPS3815PBF
Brand: Infineon Technologies
SKU: IRFPS3815PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFPS3815PBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-274AA

Datasheet:: IRFPS3815PBF.pdf

Description:: MOSFET N-CH 150V 105A SUPER247

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRFPS3815PBF from Infineon Technologies (formerly International Rectifier) is a 150V, 105A N-channel enhancement-mode power MOSFET in Super-247 (TO-274AA) package, featuring 0.015Ω R_DS(on) at V_GS = 10V, 1610mJ single-pulse avalanche energy rating, and 175°C maximum junction temperature - deployed in high-current DC-DC converters, motor drive half-bridges, and industrial UPS inverters.

For engineers reviewing the IRFPS3815PBF datasheet, IRFPS3815PBF pinout, IRFPS3815PBF application, or IRFPS3815PBF equivalent, key selection criteria include verified R_DS(on), avalanche ruggedness (E_AS = 1610 mJ), gate charge profile (Q_g = 260–390 nC), thermal resistance (R_θJC = 0.34°C/W), and Super-247 mechanical compatibility with high-power heatsink mounting.

Technical Context

This device uses advanced HEXFET® silicon processing to achieve ultra-low on-resistance per die area while maintaining robust unclamped inductive switching capability. Its fully avalanche-rated structure supports reliable operation under repetitive transient overloads up to I_AR = 58A and E_AR = 38 mJ.

The MOSFET exhibits fast switching dynamics (t_r = 130 ns, t_f = 60 ns at I_D = 58A) and low output capacitance (C_oss = 1570 pF at V_DS = 25V), enabling high-frequency hard-switched topologies. Body diode recovery is characterized with t_rr = 270–410 ns and Q_rr = 2990–4490 nC at di/dt = 100 A/µs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	150 V - Maximum blocking voltage before avalanche onset; defines upper limit for bus voltage in 100–125V DC systems.
R_DS(on)	0.015 Ω @ V_GS = 10V, I_D = 63A - Enables <1.5W conduction loss at 100A drain current, critical for thermal management in high-current PCB layouts.
I_D (T_C = 25°C)	105 A - Continuous drain current rating at case temperature of 25°C; requires active heatsinking for sustained operation.
E_AS	1610 mJ - Single-pulse avalanche energy; allows safe operation during inductive turn-off transients without external snubbers in motor control.
Q_g	260–390 nC - Total gate charge determines driver strength requirement; dictates minimum gate drive current for <100ns switching transitions.
R_θJC	0.34 °C/W - Junction-to-case thermal resistance; enables direct thermal interface to heatsinks with predictable ΔT under 441W dissipation.
t_r/t_f	130/60 ns @ I_D = 58A - Rise/fall times define minimum practical switching frequency and associated AC losses in SMPS designs.

Pinout & Package

IRFPS3815PBF is housed in the Super-247 (TO-274AA) package - a through-hole, isolated-tab variant of TO-247 with enhanced thermal performance and creepage distance. The metal tab is electrically connected to the Drain terminal and serves as primary heat path.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main high-side current path and thermal interface	Electrically tied to package tab; must be insulated from chassis unless referenced to system ground; primary heat conduction path to heatsink.
Source	Return path for load current; reference for gate drive	Low-inductance connection point for source loop; critical for minimizing switching noise and Miller-induced false turn-on.
Gate	Control electrode for channel modulation	High-impedance input requiring controlled slew rate; sensitive to ringing due to Q_gd = 150–230 nC and C_iss = 6810 pF.

Key Features

Feature	Design Value
Ultra-low R_DS(on)	0.015Ω enables <1.6W conduction loss at 105A, reducing heatsink size and improving efficiency in 1–5 kW power stages.
Full avalanche rating	1610 mJ single-pulse and 38 mJ repetitive avalanche energy allow reliable operation in unclamped inductive switching without derating.
175°C max junction temperature	Supports operation in harsh environments (e.g., industrial motor drives) and extends lifetime under thermal cycling stress.
Lead-free Super-247 package	RoHS-compliant TO-274AA outline with isolated drain tab; compatible with standard TO-247 heatsink mounts and automated through-hole assembly.
Dynamic dv/dt rating	3.0 V/ns rated diode recovery dv/dt prevents spurious turn-on during high-speed commutation in bridge configurations.

Applications

Motor Drive Half-Bridge

Industrial UPS Inverter

Use Scenario: High-current H-bridge stage driving 3-phase BLDC motors in CNC spindles and servo amplifiers.

IC Role / Device Role / Timing Role: High-side and low-side switching element handling peak currents >80A with <100ns dead-time control.

Use Value: Low R_DS(on) minimizes I²R losses during continuous PWM operation; avalanche rating absorbs regenerative energy during rapid deceleration.

Use Scenario: 3kVA online double-conversion UPS delivering clean 230VAC output from 400VDC bus.

IC Role / Device Role / Timing Role: Output stage MOSFET in full-bridge inverter operating at 16kHz with synchronous rectification.

Use Value: 150V V_DSS provides 20% margin over 400VDC bus (100V per switch in series); 0.34°C/W R_θJC enables stable thermal operation under 100% load.

High-Efficiency DC-DC Converter

EV Onboard Charger Front-End

Use Scenario: 48V–12V bidirectional buck-boost converter in telecom power shelves and data center PDUs.

IC Role / Device Role / Timing Role: Primary synchronous rectifier in high-side configuration with gate drive referenced to floating source.

Use Value: Low Q_rr (2990–4490 nC) and fast t_rr (270–410 ns) reduce body-diode conduction loss during zero-voltage switching transitions.

Use Scenario: AC/DC PFC and DC/DC isolation stage in 6.6kW EV onboard charger with 800V battery architecture.

IC Role / Device Role / Timing Role: Boost switch in continuous conduction mode (CCM) PFC front-end handling 40A RMS input current.

Use Value: 105A I_D rating and 175°C T_J support high ambient temperatures in sealed automotive enclosures; lead-free Super-247 meets automotive qualification requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current 150V power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STW90NF15	R_DS(on) = 0.014Ω (slightly lower), Q_g = 250 nC, but no published E_AS rating; TO-247 package with non-isolated tab.	Lacks documented avalanche ruggedness; unsuitable for unclamped inductive loads without external protection.	Prefer when lowest possible conduction loss is prioritized and avalanche stress is absent or externally clamped.
IXFH100N15T	R_DS(on) = 0.016Ω, E_AS = 1500 mJ, Q_g = 320 nC; TO-247AC package with isolated tab.	Similar thermal and ruggedness specs but higher gate charge increases driver complexity and switching loss.	Select when matching IRFPS3815PBF's isolated-tab mechanical fit is required and slightly higher Q_g is acceptable.

Compared with STW90NF15 and IXFH100N15T, IRFPS3815PBF offers the best balance of verified avalanche energy (1610 mJ), ultra-low R_DS(on), and lead-free Super-247 isolation - making it optimal for industrial motor drives and UPS systems where reliability under transient overload is non-negotiable.

Availability

IRFPS3815PBF is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, and high-efficiency DC-DC converters requiring stable component supply across multi-year production cycles.

Supply support for IRFPS3815PBF 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 acquired International Rectifier in 2015 and continues to manufacture and support its legacy HEXFET® power MOSFET portfolio with industrial-grade reliability and extended product longevity.

The IRFPS3815PBF belongs to the HEXFET® Power MOSFET family, engineered specifically for high-current, high-ruggedness switching in industrial power conversion - emphasizing low conduction loss, repeatable avalanche tolerance, and thermal stability under sustained load.

FAQ

What is the maximum continuous drain current at 100°C case temperature?

The IRFPS3815PBF supports 74A continuous drain current at T_C = 100°C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limits of the Super-247 package and must be validated against actual board-level thermal impedance and heatsink performance.

Is the drain tab electrically isolated from the package mount surface?

Yes - the Super-247 (TO-274AA) package features an electrically isolated drain tab. Unlike standard TO-247, this isolation allows direct mounting to grounded heatsinks without additional insulating hardware, simplifying thermal design in high-voltage systems.

Does IRFPS3815PBF require gate resistors for reliable switching?

Yes - due to its high gate charge (260–390 nC) and Miller capacitance (C_rss = 480 pF), a gate resistor of 1–5Ω is recommended to control dV/dt, suppress oscillation, and prevent false turn-on. Values depend on driver capability and layout parasitics, with 2.2Ω commonly used for 12V gate drive.

Can IRFPS3815PBF replace older IRFP460 devices in existing designs?

No - although both are 150V MOSFETs, IRFPS3815PBF has significantly lower R_DS(on) (0.015Ω vs. 0.27Ω) and higher current rating (105A vs. 20A), requiring re-evaluation of gate drive strength, PCB copper weight, and thermal interface. Direct replacement may cause gate driver saturation or thermal runaway without redesign.

IRFPS3815PBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-274AA

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 150 V

Current - Continuous Drain (Id) @ 25°C:: 105A (Tc)

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

Rds On (Max) @ Id, Vgs:: 15mOhm @ 63A, 10V

Vgs(th) (Max) @ Id:: 5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 390 nC @ 10 V

Vgs (Max):: ±30V

Input Capacitance (Ciss) (Max) @ Vds:: 6810 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 441W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: SUPER-247™ (TO-274AA)

IRFPS3815PBF FAQ

1.How can I place an order for IRFPS3815PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFPS3815PBF 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 IRFPS3815PBF reliable?

The price and inventory of IRFPS3815PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFPS3815PBF is usually 5 days.

3.What payment methods are accepted for IRFPS3815PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFPS3815PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFPS3815PBF?

IRFPS3815PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFPS3815PBF 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 IRFPS3815PBF?

For technical support, including IRFPS3815PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFPS3815PBF requirements.

6.How does Aetrix verify that IRFPS3815PBF is sourced from the original manufacturer or authorized distributors?

All IRFPS3815PBF 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 IRFPS3815PBF meets industry standards.

7.What is the process for return or replacement of IRFPS3815PBF?

All IRFPS3815PBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFPS3815PBF, 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 IRFPS3815PBF part is unused and in its original packaging.

Return procedure for IRFPS3815PBF:

1.Submit a request within 90 days.

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

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