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

Infineon Technologies IRF3707STRLPBF

Name: IRF3707STRLPBF
Brand: Infineon Technologies
SKU: IRF3707STRLPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRF3707STRLPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: IRF3707STRLPBF.pdf

Description:: MOSFET N-CH 30V 62A D2PAK

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRF3707STRLPBF from Infineon Technologies (formerly International Rectifier) is a 30V, 62A N-channel enhancement-mode HEXFET Power MOSFET in TO-220AB package, optimized for high-frequency synchronous rectification in isolated DC-DC converters and buck regulators for telecom and industrial power supplies. It features 12.5mΩ R_DS(on) @ V_GS = 10V, 19nC total gate charge, and fully characterized avalanche capability (213mJ single-pulse).

For engineers reviewing the IRF3707STRLPBF datasheet, IRF3707STRLPBF pinout, IRF3707STRLPBF application, or IRF3707STRLPBF equivalent, key selection criteria include low conduction loss at 4.5V–10V drive, fast switching (8.5ns t_d(on), 3.3ns t_f), robust body diode recovery (Q_rr = 49–74nC), and thermal performance on FR-4 PCBs (R_θJA = 40°C/W).

Technical Context

This MOSFET employs planar silicon HEXFET architecture with optimized cell pitch and trench-free die design to minimize R_DS(on) while maintaining rugged unclamped inductive switching (UIS) performance. Its gate threshold voltage (1.0–3.0V) enables reliable turn-on with standard 3.3V/5V logic-level drivers.

The device integrates a fast, low-Q_rr body diode (t_rr = 39–63ns) and exhibits linear SOA up to 10ms pulses, supporting hard-switched topologies including active clamp forward and phase-shifted full-bridge converters operating above 200kHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30V - Maximum blocking voltage for 24V-input telecom and industrial SMPS designs
R_DS(on) max	12.5mΩ @ V_GS = 10V - Enables ≤1.5W conduction loss at 62A continuous drain current
I_D continuous	62A @ T_C = 25°C - Supports high-current output stages without paralleling in compact 1"² PCB layouts
Q_g	19nC - Low gate drive energy reduces controller IC loading and EMI in high-frequency (>300kHz) operation
E_AS	213mJ - Confirmed single-pulse avalanche energy rating ensures reliability during transient overloads
t_r/t_f	78ns/3.3ns - Fast edge rates minimize switching losses in synchronous rectifier applications
R_θJA (PCB)	40°C/W - Thermal resistance measured on 1"² FR-4 board enables natural-convection cooling in space-constrained modules

Pinout & Package

IRF3707STRLPBF is housed in a through-hole TO-220AB package with copper tab for heatsink mounting. The package meets JEDEC outline standards and supports >87W power dissipation at T_C = 25°C.

Pin/Terminal	Circuit Role	Design Meaning
1 – GATE	Control electrode	Receives voltage-controlled signal to modulate channel conductivity; requires <19nC charge for full enhancement
2 – DRAIN	Main current output terminal	Connected to high-side switch node or transformer secondary; electrically tied to metal tab for thermal path
3 – SOURCE	Main current return terminal	Reference node for gate drive; forms common source connection in low-side configurations
4 – DRAIN	Secondary drain connection	Parallel drain path to Pin 2; improves current sharing and reduces package inductance in high-di/dt applications

Key Features

Feature	Design Value
Ultra-low R_DS(on)	12.5mΩ @ 10V drive enables <1.2W conduction loss at 31A in 48V-output telecom rectifiers
Low Q_gd/Q_gs ratio	6.3nC/8.2nC = 0.77 - Reduces Miller-induced shoot-through risk in synchronous buck high-side switching
Characterized body diode	Q_rr = 49–74nC and t_rr = 39–63ns - Allows predictable timing for adaptive dead-time control in SR controllers
Lead-free construction	RoHS-compliant Pb-free plating and solderable terminations meet IPC-J-STD-020 moisture sensitivity level 1
Thermal stability	R_DS(on) increases only 1.7× from 25°C to 125°C - Maintains efficiency across industrial temperature range

Applications

Telecom DC-DC Converters

Industrial Buck Regulators

Use Scenario: 48V-to-12V isolated forward converter in 1RU telecom shelf with 200kHz switching frequency.

IC Role / Device Role / Timing Role: Synchronous rectifier replacing Schottky diode on secondary side to reduce conduction loss and improve efficiency.

Use Value: Achieves >94% efficiency at full load by cutting rectifier loss by 65% versus 40V/60A Schottky, enabled by 12.5mΩ R_DS(on) and fast 3.3ns fall time.

Use Scenario: High-current 5V/30A point-of-load regulator for FPGA power delivery in factory automation PLCs.

IC Role / Device Role / Timing Role: Low-side switch in multiphase buck topology with integrated driver and current sensing.

Use Value: Delivers stable 5V output under 10A/µs load transients due to 248A pulsed current rating and 40°C/W PCB thermal resistance.

Server VRMs

Motor Drive Half-Bridges

Use Scenario: 12V input, 1.8V/120A CPU voltage regulator module using 3-phase interleaved buck with doublers.

IC Role / Device Role / Timing Role: High-side switch with gate drive referenced to switching node; requires low Q_gd to suppress Miller turn-on.

Use Value: Q_gd/Q_gs ratio of 0.77 minimizes false triggering during dV/dt transitions, enabling reliable 500kHz operation.

Use Scenario: 24V BLDC motor driver half-bridge stage in HVAC fan control with PWM at 15kHz.

IC Role / Device Role / Timing Role: Low-side switching element controlling motor phase current via PWM modulation.

Use Value: Avalanche-rated construction withstands inductive kickback from 1.5mH motor windings without snubbers, validated to 213mJ per pulse.

Equivalent & Alternatives

The following parts are listed as comparable options for similar power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRL3705ZPBF	R_DS(on) = 16mΩ @ 4.5V; higher gate charge (36nC); same TO-220AB package	Better suited for 3.3V logic-driven low-side switches where gate drive voltage is limited	Select when gate drive is constrained to ≤4.5V and lower switching frequency (<100kHz) is acceptable
STP30NF20	V_DS = 200V; R_DS(on) = 42mΩ @ 10V; higher voltage rating but significantly higher on-resistance	Used in higher-bus-voltage industrial inverters where 30V rating is insufficient	Choose only if system requires >100V blocking capability; not suitable for direct replacement in 30V designs

Compared with IRL3705ZPBF and STP30NF20, IRF3707STRLPBF offers the optimal balance of low R_DS(on), moderate gate charge, and proven 30V avalanche ruggedness-making it preferred for high-efficiency, high-frequency telecom and server power stages where both conduction and switching losses must be minimized.

Availability

IRF3707STRLPBF is available at Aetrix Electronics and suitable for telecom DC-DC converters, industrial buck regulators, and server VRMs requiring stable component supply and long-term production continuity.

Supply support for IRF3707STRLPBF 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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, and industrial control solutions with vertical integration from silicon wafer to system-level validation.

This device belongs to Infineon's HEXFET Power MOSFET product line, engineered specifically for high-efficiency, high-reliability switching power supplies in telecom infrastructure, computing, and industrial automation where thermal robustness and avalanche tolerance are critical.

FAQ

What is the maximum continuous drain current for IRF3707STRLPBF at 70°C case temperature?

The maximum continuous drain current is 52A at T_C = 70°C with V_GS = 10V, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limits of the TO-220AB package and ensures safe operation within its 61W power dissipation limit at that temperature.

Does IRF3707STRLPBF have a qualified lead-free finish?

Yes, the "PBF" suffix confirms RoHS-compliant lead-free termination with matte tin plating. The device meets JEDEC J-STD-020 MSL Level 1 and is rated for peak reflow temperatures up to 260°C, making it compatible with standard lead-free PCB assembly processes.

Can IRF3707STRLPBF be used as a direct replacement for IRF3707PbF?

Yes - IRF3707STRLPBF is the lead-free, tape-and-reel packaged version of the legacy IRF3707PbF. Electrical specifications, thermal characteristics, pinout, and mechanical dimensions are identical; only packaging format (reel vs. tube) and termination finish differ.

What is the typical reverse recovery charge (Q_rr) of the body diode at 125°C junction temperature?

At T_J = 125°C, IF = 31A, VR = 20V, and di/dt = 100A/µs, the reverse recovery charge is 62–93nC, as documented in the Diode Characteristics section. This value is critical for estimating commutation losses in synchronous rectifier applications.

IRF3707STRLPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 62A (Tc)

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

Rds On (Max) @ Id, Vgs:: 12.5mOhm @ 15A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 19 nC @ 4.5 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1990 pF @ 15 V

FET Feature:: -

Power Dissipation (Max):: 87W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

IRF3707STRLPBF FAQ

1.How can I place an order for IRF3707STRLPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRF3707STRLPBF 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 IRF3707STRLPBF reliable?

The price and inventory of IRF3707STRLPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRF3707STRLPBF is usually 5 days.

3.What payment methods are accepted for IRF3707STRLPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRF3707STRLPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRF3707STRLPBF?

IRF3707STRLPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRF3707STRLPBF 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 IRF3707STRLPBF?

For technical support, including IRF3707STRLPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRF3707STRLPBF requirements.

6.How does Aetrix verify that IRF3707STRLPBF is sourced from the original manufacturer or authorized distributors?

All IRF3707STRLPBF 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 IRF3707STRLPBF meets industry standards.

7.What is the process for return or replacement of IRF3707STRLPBF?

All IRF3707STRLPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRF3707STRLPBF, 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 IRF3707STRLPBF part is unused and in its original packaging.

Return procedure for IRF3707STRLPBF:

1.Submit a request within 90 days.

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

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