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Vishay Siliconix IRFBC40LC
- Part No.:
- IRFBC40LC
- Manufacturer:
- Vishay Siliconix
- Category:
- FETs, MOSFETs
- Package:
- TO-220-3
- Datasheet:
-
IRFBC40LC.pdf
- Description:
- MOSFET N-CH 600V 6.2A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,581
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Product details
Overview
IRFBC40LC from Vishay Siliconix is a 600 V, 6.2 A N-channel power MOSFET in TO-220AB package, featuring 1.2 Ω RDS(on) at VGS = 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 IRFBC40LC datasheet, IRFBC40LC pinout, IRFBC40LC application, or IRFBC40LC equivalent, key selection criteria include its 600 V blocking capability, low Qg/Qgd ratio for fast switching, rugged unclamped inductive switching performance (EAS = 530 mJ), and RoHS-compliant Pb-free variant IRFBC40LCPbF.
Technical Context
This device employs Vishay's LCDMOS technology to achieve ultra-low gate charge without compromising ruggedness. It delivers reduced Ciss (1100 pF), Coss (140 pF), and Crss (15 pF) at VDS = 25 V, enabling MHz-range operation with minimized switching losses.
The IRFBC40LC integrates a robust body diode with trr = 440–680 ns and Qrr = 2.1–3.2 μC, and supports repetitive avalanche current up to 6.2 A-critical for snubberless flyback and resonant converter topologies where voltage overshoot must be managed without external clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 600 V - Enables use in universal-input offline SMPS (up to 400 V DC bus + margin). |
| RDS(on) | 1.2 Ω @ VGS = 10 V - Delivers low conduction loss at 6.2 A continuous drain current (TC = 25 °C). |
| Qg | 39 nC - Reduces gate drive power and enables efficient operation with standard PWM controllers. |
| EAS | 530 mJ - Supports reliable unclamped inductive switching in flyback and forward converters. |
| tr/tf | 20 ns / 17 ns - Facilitates clean, fast transitions minimizing overlap loss in hard-switched topologies. |
| TJ Range | –55 °C to +150 °C - Ensures stable operation across industrial and telecom ambient conditions. |
| RthJC | 1.0 °C/W - Allows effective heatsinking to sustain 125 W power dissipation at TC = 25 °C. |
Pinout & Package
IRFBC40LC is housed in a through-hole TO-220AB package with isolated tab (drain-connected). The case serves as the drain terminal and provides mechanical mounting and thermal path to heatsink.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G (Gate) | Control electrode | Receives 10 V logic-level drive; ultra-low Qg minimizes driver stress and layout sensitivity. |
| D (Drain) | High-voltage output node | Connected to internal die backside and metal tab; requires isolation from heatsink unless electrically referenced. |
| S (Source) | Power return/reference node | Serves as common reference for gate drive and current sensing; low-inductance source leads (LS = 7.5 nH) reduce ringing. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low gate charge (Qg = 39 nC) | Reduces gate driver power consumption and enables higher switching frequencies without excessive heat generation. |
| Enhanced ±30 V VGS rating | Improves immunity to gate overvoltage transients during layout parasitics or controller fault conditions. |
| Repetitive avalanche rated (IAR = 6.2 A) | Eliminates need for external snubbers in flyback and forward converters operating under overload or startup stress. |
| Low Crss (15 pF) and high VDS = 600 V | Minimizes Miller-induced shoot-through risk and improves dv/dt immunity in high-side switching configurations. |
| RoHS-compliant Pb-free variant (IRFBC40LCPbF) | Meets global environmental regulations without sacrificing electrical or thermal performance versus SnPb version. |
Applications
| AC-DC Adapter Primary Switch | Industrial DC-DC Converter |
|---|---|
Use Scenario: 65 W universal-input offline flyback adapter powering consumer electronics. IC Role / Device Role / Timing Role: Primary-side high-voltage switch synchronizing with PWM controller to regulate output via optocoupler feedback. Use Value: 600 V rating accommodates 385 V DC bus with safety margin; low Qg enables >100 kHz operation reducing transformer size and EMI filter cost. |
Use Scenario: 200 W isolated half-bridge DC-DC module converting 48 V telecom input to 12 V output. IC Role / Device Role / Timing Role: High-side switch in asymmetrical half-bridge topology handling peak currents up to 15 A with controlled dV/dt. Use Value: Repetitive avalanche capability absorbs energy during cross-conduction faults; RthJC = 1.0 °C/W supports forced-air cooling at full load. |
| LED Driver Power Stage | UPS Inverter Output Stage |
Use Scenario: Constant-current LED driver for street lighting using buck-boost topology with 300 V DC link. IC Role / Device Role / Timing Role: Main switching element controlling inductor current and regulating LED string current via current-sense feedback. Use Value: Low RDS(on) reduces conduction loss at 5–6 A average current; fast tr/tf minimizes switching loss at 50–100 kHz PWM frequency. |
Use Scenario: Line-interactive UPS with boost PFC front-end and H-bridge inverter stage delivering 230 V AC output. IC Role / Device Role / Timing Role: Low-side switch in H-bridge output stage, commutating 10 A RMS load current at 50 Hz with PWM dead-time control. Use Value: Body diode trr < 680 ns ensures clean reverse recovery during polarity reversal; 150 °C max TJ supports sealed enclosure operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP6NK60ZFP | 600 V, 6 A, RDS(on) = 1.2 Ω, Qg = 32 nC, TO-220FP package (full-pack, no isolated tab) | Lacks repetitive avalanche rating; lower EAS (320 mJ); requires heatsink isolation only if drain not grounded | Preferred where space-constrained layouts favor full-pack TO-220FP and avalanche robustness is secondary. |
| FQP6N60C | 600 V, 6.2 A, RDS(on) = 1.3 Ω, Qg = 42 nC, TO-220 package with non-isolated tab | Higher Qg increases gate drive loss; no specified repetitive avalanche current; slightly higher RDS(on) | Suitable for cost-sensitive designs where moderate switching frequency (<60 kHz) and basic reliability suffice. |
Compared with STP6NK60ZFP and FQP6N60C, the IRFBC40LC offers superior avalanche ruggedness and lower Qg/RDS(on) trade-off-making it optimal for high-reliability, high-frequency SMPS where transient overvoltage and thermal cycling are design constraints.
Availability
IRFBC40LC is available at Aetrix Electronics and suitable for AC-DC adapters, industrial DC-DC converters, and LED drivers requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for IRFBC40LC 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 power efficiency and ruggedness.
The IRFBC40LC belongs to Vishay's LCDMOS low-charge power MOSFET family, engineered specifically for high-frequency, high-voltage switching applications demanding low gate drive loss and robust avalanche behavior.
FAQ
What is the maximum continuous drain current rating for the IRFBC40LC at 100 °C case temperature?
The IRFBC40LC supports 3.9 A continuous drain current at TC = 100 °C, derated linearly from 6.2 A at 25 °C using a 1.0 W/°C derating factor. This value reflects thermal limits of the TO-220AB package and must be validated against actual board-level heatsinking and airflow conditions in the target application.
Does the IRFBC40LC have a fully isolated drain tab in the TO-220AB package?
Yes, the IRFBC40LC in TO-220AB configuration features an electrically isolated drain tab-meaning the metal tab is internally connected to the drain but insulated from the mounting surface. This allows direct heatsink attachment without additional insulating hardware when the drain is at ground potential, simplifying thermal design.
What is the typical body diode reverse recovery time (trr) for the IRFBC40LC?
The IRFBC40LC exhibits a typical body diode reverse recovery time of 440 ns, with a maximum of 680 ns, measured at TJ = 25 °C, IF = 6.2 A, and dI/dt = 100 A/μs. This fast recovery supports high-frequency synchronous rectification and reduces switching loss in topologies relying on intrinsic diode conduction.
Can the IRFBC40LC replace the IRFBC40 in existing designs?
Yes, the IRFBC40LC is a direct replacement for the legacy IRFBC40, offering identical pinout, voltage/current ratings, and package. Key improvements include enhanced ±30 V VGS rating, lower gate charge (39 nC vs. 45 nC), and improved avalanche ruggedness-enabling drop-in upgrades with measurable efficiency gains.
What is the peak diode recovery dV/dt rating for the IRFBC40LC?
The IRFBC40LC is rated for peak diode recovery dV/dt of 3.0 V/ns, verified per JEDEC test method. This specification ensures stable operation during fast voltage transients across the body diode-critical in phase-shifted and resonant converters where rapid voltage reversal occurs during zero-voltage switching transitions.
IRFBC40LC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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
IRFBC40LC FAQ
1.How can I place an order for IRFBC40LC through Aetrix?
Please submit a Request for Quotation (RFQ) for IRFBC40LC 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 IRFBC40LC reliable?
The price and inventory of IRFBC40LC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFBC40LC is usually 5 days.
3.What payment methods are accepted for IRFBC40LC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFBC40LC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRFBC40LC?
IRFBC40LC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRFBC40LC 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 IRFBC40LC?
For technical support, including IRFBC40LC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFBC40LC requirements.
6.How does Aetrix verify that IRFBC40LC is sourced from the original manufacturer or authorized distributors?
All IRFBC40LC 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 IRFBC40LC meets industry standards.
7.What is the process for return or replacement of IRFBC40LC?
All IRFBC40LC units undergo pre-shipment inspection (PSI). If there is an issue with IRFBC40LC, 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 IRFBC40LC part is unused and in its original packaging.
Return procedure for IRFBC40LC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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