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

Vishay Siliconix IRFBC40LCPBF

Name: IRFBC40LCPBF
Brand: Vishay Siliconix
SKU: IRFBC40LCPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFBC40LCPBF

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: IRFBC40LCPBF.pdf

Description:: MOSFET N-CH 600V 6.2A TO220AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRFBC40LCPBF from Vishay Siliconix is a 600 V, 6.2 A N-channel power MOSFET in TO-220AB package, featuring 1.2 Ω R_DS(on) at V_GS = 10 V, 39 nC total gate charge, and repetitive avalanche rating - designed for high-frequency switch-mode power supplies, DC-DC converters, and offline SMPS primary-side switching.

For engineers reviewing the IRFBC40LCPBF datasheet, IRFBC40LCPBF pinout, IRFBC40LCPBF application, or IRFBC40LCPBF equivalent, key selection criteria include its ultra-low gate charge, enhanced ±30 V gate rating, 530 mJ single-pulse avalanche energy, and RoHS-compliant lead-free construction - critical for reliable high-voltage, medium-current hard-switching topologies.

Technical Context

This device employs Vishay's LCDMOS technology to achieve significantly reduced C_iss (1100 pF), C_oss (140 pF), and C_rss (15 pF) versus conventional 600 V MOSFETs, enabling stable operation up to several MHz at high current. Its 1.2 Ω on-resistance and low 10 nC gate-source charge support efficient gate drive with minimal external driver strength.

The IRFBC40LCPBF integrates a robust body diode with 440–680 ns reverse recovery time and 2.1–3.2 μC Q_rr, rated for 6.2 A continuous source-drain current and 25 A pulsed diode current. It is specified for operation from –55 °C to +150 °C junction temperature with 1.0 °C/W R_thJC.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	600 V - supports 400 V AC mains-derived DC bus with 50 % safety margin in offline converters
R_DS(on) @ V_GS = 10 V	1.2 Ω - enables ≤ 46 W conduction loss at 6.2 A, suitable for <100 W primary-side switching
Q_g	39 nC - reduces gate driver power demand and allows use of low-cost bipolar or logic-level drivers
E_AS	530 mJ - provides ruggedness against unclamped inductive switching events without snubber
T_J Range	–55 °C to +150 °C - ensures reliability in sealed industrial or high-ambient environments
dV/dt Rating	3.0 V/ns - suppresses false turn-on in high-dI/dt noise environments like motor drives
P_D @ T_C = 25 °C	125 W - requires heatsink for >3 A continuous operation; thermal design driven by R_thJC = 1.0 °C/W

Pinout & Package

IRFBC40LCPBF uses the standard TO-220AB package with isolated tab (drain-connected), 3-pin vertical mounting configuration, and 1.1 N·m mounting torque specification. The case is electrically connected to the drain terminal.

Pin/Terminal	Circuit Role	Design Meaning
G (Gate)	Control input	Receives voltage-controlled signal; threshold 2.0–4.0 V; ±30 V absolute max rating prevents gate oxide damage
D (Drain)	High-side switched output	Connected to heatsink tab; carries full load current and withstands 600 V blocking; internal drain inductance = 4.5 nH
S (Source)	Power return / reference node	Common return for gate drive and load; internal source inductance = 7.5 nH affects switching waveform fidelity

Key Features

Feature	Design Value
Ultra-low gate charge	39 nC total charge enables fast switching with minimal driver dissipation in high-frequency SMPS
Enhanced V_GS rating	±30 V gate rating improves immunity to transient overvoltage during layout parasitic ringing
Reduced capacitance profile	C_iss/C_oss/C_rss optimized for ZVS/ZCS compatibility and reduced Miller effect in resonant topologies
Repetitive avalanche rated	Rated for 6.2 A I_AR and 13 mJ E_AR, supporting reliable operation under short-circuit or overload conditions
RoHS-compliant lead-free	Pb-free terminations meet Directive 2011/65/EU; compatible with standard SnPb and lead-free reflow profiles

Applications

AC-DC Adapter Primary Switch	Industrial DC-DC Converter
Use Scenario: 65 W universal-input offline flyback converter operating at 65 kHz with 400 V DC bus. IC Role / Device Role: Primary-side high-voltage switching transistor handling full input rectified voltage and transformer magnetizing current. Use Value: 1.2 Ω R_DS(on) and 39 nC Q_g minimize combined conduction and switching losses, improving efficiency to >85 % at full load.	Use Scenario: 48 V input to 12 V isolated forward converter in programmable logic controller power supply. IC Role / Device Role: Main switching element in primary bridge-leg, operating with synchronous rectification on secondary side. Use Value: 530 mJ E_AS and 3.0 V/ns dV/dt rating ensure robustness against transformer leakage inductance spikes without snubbers.
LED Driver Power Stage	UPS Inverter Half-Bridge
Use Scenario: Constant-current 150 W LED driver using quasi-resonant buck-boost topology with 300 V DC link. IC Role / Device Role: High-side switch controlling energy transfer into output inductor and regulating LED current via peak-current mode control. Use Value: Low C_rss (15 pF) minimizes gate voltage coupling during V_DS transitions, preventing spurious turn-on in QR operation.	Use Scenario: 1 kVA line-interactive UPS inverter stage switching 350 V DC bus into 230 V AC output via H-bridge. IC Role / Device Role: One leg of half-bridge in inverter output stage, commutating bidirectional current through output filter inductor. Use Value: Body diode t_rr = 440–680 ns and Q_rr = 2.1–3.2 μC enable controlled freewheeling with low recovery loss and EMI.

AC-DC Adapter Primary Switch

Industrial DC-DC Converter

Use Scenario: 65 W universal-input offline flyback converter operating at 65 kHz with 400 V DC bus.

IC Role / Device Role: Primary-side high-voltage switching transistor handling full input rectified voltage and transformer magnetizing current.

Use Value: 1.2 Ω R_DS(on) and 39 nC Q_g minimize combined conduction and switching losses, improving efficiency to >85 % at full load.

Use Scenario: 48 V input to 12 V isolated forward converter in programmable logic controller power supply.

IC Role / Device Role: Main switching element in primary bridge-leg, operating with synchronous rectification on secondary side.

Use Value: 530 mJ E_AS and 3.0 V/ns dV/dt rating ensure robustness against transformer leakage inductance spikes without snubbers.

LED Driver Power Stage

UPS Inverter Half-Bridge

Use Scenario: Constant-current 150 W LED driver using quasi-resonant buck-boost topology with 300 V DC link.

IC Role / Device Role: High-side switch controlling energy transfer into output inductor and regulating LED current via peak-current mode control.

Use Value: Low C_rss (15 pF) minimizes gate voltage coupling during V_DS transitions, preventing spurious turn-on in QR operation.

Use Scenario: 1 kVA line-interactive UPS inverter stage switching 350 V DC bus into 230 V AC output via H-bridge.

IC Role / Device Role: One leg of half-bridge in inverter output stage, commutating bidirectional current through output filter inductor.

Use Value: Body diode t_rr = 440–680 ns and Q_rr = 2.1–3.2 μC enable controlled freewheeling with low recovery loss and EMI.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP6NK60ZFP	600 V, 6 A, R_DS(on) = 1.2 Ω, Q_g = 32 nC, TO-220FP package (full-pack, no isolated tab)	Non-isolated drain tab limits heatsinking flexibility; lower Q_g improves switching but lacks IRFBC40LCPBF's 530 mJ E_AS	Preferred where compact footprint and lower gate drive loss outweigh need for isolated heatsink mounting
FQP6N60C	600 V, 6.2 A, R_DS(on) = 1.3 Ω, Q_g = 42 nC, TO-220 package with isolated tab	Higher R_DS(on) and Q_g increase conduction and switching losses; identical avalanche rating (530 mJ)	Drop-in replacement only if board layout accommodates same pinout and thermal interface; verify gate drive capability for +7.5 % Q_g

Compared with STP6NK60ZFP and FQP6N60C, the IRFBC40LCPBF offers superior gate-drive efficiency due to balanced Q_g/R_DS(on), unique isolated-tab TO-220AB mechanical compatibility, and industry-leading E_AS margin - making it optimal for thermally constrained, high-reliability offline power stages.

Availability

IRFBC40LCPBF is available at Aetrix Electronics and suitable for AC-DC adapters, industrial DC-DC converters, and LED driver power stages requiring stable component supply and long-term industrial lifecycle support.

Supply support for IRFBC40LCPBF 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 ruggedness, precision, and reliability.

The IRFBC40LCPBF belongs to Vishay's LCDMOS low-charge power MOSFET family, engineered specifically for high-frequency, high-efficiency switching in offline and industrial power conversion systems.

FAQ

What is the maximum continuous drain current for IRFBC40LCPBF at 100 °C case temperature?

The IRFBC40LCPBF supports 3.9 A continuous drain current at T_C = 100 °C, derated linearly from 6.2 A at 25 °C using a 1.0 W/°C derating factor. This value is confirmed in the Absolute Maximum Ratings table and must be used with R_thJC = 1.0 °C/W to calculate required heatsink thermal resistance for target junction temperature.

Does IRFBC40LCPBF have a fully isolated drain tab in the TO-220AB package?

Yes, the IRFBC40LCPBF uses the TO-220AB package variant with an electrically isolated drain tab, allowing direct mounting to a common heatsink without insulating hardware. This isolation is verified in Vishay's package drawings (Doc #66542) and is essential for safe multi-device parallel configurations.

What is the typical body diode reverse recovery charge (Q_rr) of IRFBC40LCPBF?

The IRFBC40LCPBF has a typical Q_rr of 2.1–3.2 μC, measured at T_J = 25 °C, I_F = 6.2 A, and dI/dt = 100 A/μs. This parameter directly impacts switching loss and EMI in hard-commutated topologies and is documented in the "Drain-Source Body Diode Characteristics" section of the datasheet.

Is IRFBC40LCPBF rated for repetitive avalanche operation?

Yes, the IRFBC40LCPBF is explicitly rated for repetitive avalanche with I_AR = 6.2 A and E_AR = 13 mJ, as stated in the Absolute Maximum Ratings table. This capability is validated per test condition b (V_DD = 50 V, L = 25 mH, R_g = 25 Ω) and enables robust short-circuit protection without external clamping.

What gate voltage range is supported by IRFBC40LCPBF for reliable turn-on and turn-off?

The IRFBC40LCPBF has a gate-threshold voltage V_GS(th) of 2.0–4.0 V and is fully enhanced at V_GS = 10 V, with a maximum rated V_GS of ±30 V. Reliable turn-on occurs above 4.0 V; turn-off is ensured below 2.0 V. Operation within this window avoids partial conduction and thermal runaway.

IRFBC40LCPBF Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 600 V

Current - Continuous Drain (Id) @ 25°C:: 6.2A (Tc)

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

Rds On (Max) @ Id, Vgs:: 1.2Ohm @ 3.7A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 39 nC @ 10 V

Vgs (Max):: ±30V

Input Capacitance (Ciss) (Max) @ Vds:: 1100 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 125W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

IRFBC40LCPBF FAQ

1.How can I place an order for IRFBC40LCPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFBC40LCPBF 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 IRFBC40LCPBF reliable?

The price and inventory of IRFBC40LCPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFBC40LCPBF is usually 5 days.

3.What payment methods are accepted for IRFBC40LCPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFBC40LCPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFBC40LCPBF?

IRFBC40LCPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFBC40LCPBF 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 IRFBC40LCPBF?

For technical support, including IRFBC40LCPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFBC40LCPBF requirements.

6.How does Aetrix verify that IRFBC40LCPBF is sourced from the original manufacturer or authorized distributors?

All IRFBC40LCPBF 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 IRFBC40LCPBF meets industry standards.

7.What is the process for return or replacement of IRFBC40LCPBF?

All IRFBC40LCPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFBC40LCPBF, 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 IRFBC40LCPBF part is unused and in its original packaging.

Return procedure for IRFBC40LCPBF:

1.Submit a request within 90 days.

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

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