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

Vishay Siliconix IRFU430APBF

Name: IRFU430APBF
Brand: Vishay Siliconix
SKU: IRFU430APBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFU430APBF

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

Package:: TO-251-3 Short Leads, IPAK, TO-251AA

Datasheet:: IRFU430APBF.pdf

Description:: MOSFET N-CH 500V 5A TO251AA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRFU430APBF from Vishay Siliconix is a 500 V, 5.0 A N-channel enhancement-mode power MOSFET in DPAK (TO-252) package, featuring 1.7 Ω R_DS(on) at V_GS = 10 V, 24 nC total gate charge, and 130 mJ single-pulse avalanche energy. It serves as a high-voltage switching element in offline SMPS primary-side circuits, UPS inverters, and industrial DC-DC converters.

For engineers reviewing the IRFU430APBF datasheet, IRFU430APBF pinout, IRFU430APBF application, or IRFU430APBF equivalent, key selection criteria include its 500 V V_DS rating, 1.7 Ω on-resistance at 10 V drive, 24 nC Q_g, body diode recovery time of 410–620 ns, and DPAK thermal performance with R_thJC = 1.1 °C/W.

Technical Context

This MOSFET employs planar V-groove silicon technology optimized for high-voltage ruggedness and controlled dV/dt immunity. Its fully characterized C_iss (490 pF), C_oss (75 pF), and C_rss (4.5 pF) enable predictable snubber design in hard-switched topologies.

The device supports unclamped inductive switching with validated 130 mJ E_AS at I_AS = 5.0 A and exhibits stable gate threshold voltage (2.0–4.5 V) across –55 to +150 °C, ensuring reliable turn-on in wide-temperature industrial environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	500 V - Withstands full rectified 340 VAC input with margin for surge and ringing in offline SMPS.
R_DS(on)	1.7 Ω @ V_GS = 10 V - Delivers ≤8.5 W conduction loss at 5 A DC, enabling thermally constrained PCB layouts.
Q_g	24 nC - Enables direct drive from standard 1 A gate drivers without external buffering in 100–500 kHz designs.
E_AS	130 mJ - Supports robust operation under inductive fault conditions without external clamping in UPS and motor control.
t_rr	410–620 ns - Limits reverse recovery losses and EMI generation during synchronous rectification or freewheeling.
R_thJC	1.1 °C/W - Allows ≥100 W power dissipation with modest heatsinking, critical for compact high-power density modules.

Pinout & Package

DPAK (TO-252) package with exposed drain pad for thermal and electrical connection; surface-mount footprint compatible with IPC-7351B standard; recommended copper pad area ≥10.67 mm × 5.69 mm per Vishay AN826.

Pin/Terminal	Circuit Role	Design Meaning
G (Gate)	Control electrode	Receives 10 V logic-level drive; low 6.5 nC Q_gs enables fast, low-loss turn-on with minimal Miller effect.
D (Drain)	High-voltage power terminal	Connected to PCB thermal pad; carries full load current and withstands 500 V transient spikes in flyback/LLC primaries.
S (Source)	Reference and return path	Provides Kelvin sense point for current monitoring; ties to power ground plane with low-inductance layout to suppress dV/dt noise.

Key Features

Feature	Design Value
Low Q_g/Q_gd ratio	24 nC / 13 nC = 1.85 - Reduces Miller-induced shoot-through risk and improves controllability in half-bridge configurations.
Fully characterized C_oss eff.	51 pF - Enables accurate calculation of turn-off energy loss (E_off ≈ ½ × C_{oss eff} × V_DS²) for efficiency optimization.
Avalanche-rated	130 mJ E_AS - Eliminates need for external RCD clamp in cost-sensitive flyback converters operating up to 65 kHz.
Body diode Q_rr	1.4–2.1 μC - Predictable reverse recovery charge allows precise snubber sizing and minimizes cross-conduction loss in synchronous rectifiers.
Lead (Pb)-free & halogen-free	Complies with RoHS 2011/65/EU and Vishay's "Green" material standard (doc# 99912).

Applications

Industrial UPS Inverter Stage	Offline Flyback SMPS Primary Switch
Use Scenario: High-efficiency 1 kVA uninterruptible power supply converting 48 VDC battery to 230 VAC output via full-bridge inverter. IC Role / Device Role / Timing Role: High-side switching element in H-bridge leg; switches at 25–50 kHz with 500 V blocking capability during dead-time. Use Value: 130 mJ E_AS withstands inductive kickback during short-circuit events; 1.1 °C/W R_thJC sustains 85 °C case temperature under continuous 5 A load.	Use Scenario: 30 W AC/DC adapter for industrial sensors, accepting universal 85–265 VAC input. IC Role / Device Role / Timing Role: Primary-side power switch in discontinuous conduction mode (DCM) flyback topology operating at 65 kHz. Use Value: 24 nC Q_g permits direct drive from UC384X controller; 1.7 Ω R_DS(on) limits conduction loss to <1.5 W at full load.
DC-DC Boost Converter for EV Auxiliary Systems	High-Voltage LED Driver for Street Lighting
Use Scenario: 12 V to 400 V boost converter powering auxiliary 48 V bus in commercial electric vehicles. IC Role / Device Role / Timing Role: Main switching transistor handling 15 A peak current and 400 V output voltage in hard-switched boost stage. Use Value: 500 V V_DS provides 100 V safety margin above 400 V rail; 410–620 ns t_rr ensures clean turn-off with minimal voltage overshoot.	Use Scenario: Constant-current 150 W LED driver for outdoor streetlights, operating from 277 VAC line with active PFC front-end. IC Role / Device Role / Timing Role: Secondary-side high-voltage switch in buck-derived constant-current regulator stage. Use Value: Low 25 μA I_DSS at 500 V ensures negligible leakage current in standby; TO-252 thermal pad enables passive cooling on aluminum housing.

Industrial UPS Inverter Stage

Offline Flyback SMPS Primary Switch

Use Scenario: High-efficiency 1 kVA uninterruptible power supply converting 48 VDC battery to 230 VAC output via full-bridge inverter.

IC Role / Device Role / Timing Role: High-side switching element in H-bridge leg; switches at 25–50 kHz with 500 V blocking capability during dead-time.

Use Value: 130 mJ E_AS withstands inductive kickback during short-circuit events; 1.1 °C/W R_thJC sustains 85 °C case temperature under continuous 5 A load.

Use Scenario: 30 W AC/DC adapter for industrial sensors, accepting universal 85–265 VAC input.

IC Role / Device Role / Timing Role: Primary-side power switch in discontinuous conduction mode (DCM) flyback topology operating at 65 kHz.

Use Value: 24 nC Q_g permits direct drive from UC384X controller; 1.7 Ω R_DS(on) limits conduction loss to <1.5 W at full load.

DC-DC Boost Converter for EV Auxiliary Systems

High-Voltage LED Driver for Street Lighting

Use Scenario: 12 V to 400 V boost converter powering auxiliary 48 V bus in commercial electric vehicles.

IC Role / Device Role / Timing Role: Main switching transistor handling 15 A peak current and 400 V output voltage in hard-switched boost stage.

Use Value: 500 V V_DS provides 100 V safety margin above 400 V rail; 410–620 ns t_rr ensures clean turn-off with minimal voltage overshoot.

Use Scenario: Constant-current 150 W LED driver for outdoor streetlights, operating from 277 VAC line with active PFC front-end.

IC Role / Device Role / Timing Role: Secondary-side high-voltage switch in buck-derived constant-current regulator stage.

Use Value: Low 25 μA I_DSS at 500 V ensures negligible leakage current in standby; TO-252 thermal pad enables passive cooling on aluminum housing.

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
STP5NK50ZFP	500 V, 4.5 A, R_DS(on) = 1.4 Ω, Q_g = 22 nC, TO-220FP package	Higher thermal resistance (R_thJC = 2.5 °C/W); requires larger heatsink than DPAK	Preferred where through-hole mounting and higher peak current margin are needed.
IXTP50N10P	100 V, 50 A, R_DS(on) = 0.022 Ω, Q_g = 90 nC, TO-220 package	Lower voltage rating; unsuitable for >150 V DC bus applications	Only viable in low-voltage, high-current DC-DC stages-not a drop-in replacement.

Compared with STP5NK50ZFP, IRFU430APBF offers superior thermal performance in surface-mount designs; compared with IXTP50N10P, it delivers essential 500 V isolation for mains-connected systems but trades off conduction loss for voltage capability.

Availability

IRFU430APBF is available at Aetrix Electronics and suitable for industrial UPS inverters, offline flyback SMPS, and high-voltage LED drivers requiring stable component supply and long-term manufacturing continuity.

Supply support for IRFU430APBF 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-reliability MOSFETs, diodes, and optoelectronics for industrial, automotive, and computing markets.

The IRFU430APBF belongs to Vishay's high-voltage Power MOSFET family engineered for rugged, high-efficiency switching in offline power conversion and uninterruptible power systems.

FAQ

What is the maximum continuous drain current for IRFU430APBF at 100 °C case temperature?

The IRFU430APBF supports 3.2 A continuous drain current at T_C = 100 °C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limitations of the DPAK package and must be verified against actual board layout and heatsinking in the target application. The IRFU430APBF maintains safe operation up to 150 °C junction temperature under pulsed conditions.

Does IRFU430APBF have avalanche capability, and how is it rated?

Yes, the IRFU430APBF is fully rated for repetitive and single-pulse avalanche operation. It delivers 130 mJ single-pulse avalanche energy (E_AS) at I_AS = 5.0 A and 11 mJ repetitive avalanche energy (E_AR) under defined test conditions. These values are measured per JEDEC standards and documented in the datasheet's Absolute Maximum Ratings section for the IRFU430APBF.

What is the gate threshold voltage range for IRFU430APBF, and how does it vary with temperature?

The IRFU430APBF has a gate threshold voltage (V_GS(th)) range of 2.0 V to 4.5 V at T_J = 25 °C, with a positive temperature coefficient of +0.60 V/°C. As junction temperature rises, V_GS(th) increases-reaching ~4.5 V at 150 °C-ensuring inherent current limiting and improved short-circuit robustness. This behavior is confirmed in Figure 12d of the IRFU430APBF datasheet.

Can IRFU430APBF be driven directly by a microcontroller GPIO pin?

No, the IRFU430APBF requires a minimum V_GS of 10 V for full enhancement and low R_DS(on); typical 3.3 V or 5 V GPIO outputs cannot achieve its rated 1.7 Ω on-resistance. A dedicated gate driver (e.g., TC4427) or level-shifting circuit is required to deliver the 10 V drive and source/sink the 24 nC Q_g. Driving the IRFU430APBF with insufficient gate voltage results in excessive conduction loss and thermal runaway.

What is the body diode forward voltage of IRFU430APBF, and under what conditions is it specified?

The IRFU430APBF body diode forward voltage (V_SD) is 1.5 V maximum at T_J = 25 °C, I_S = 5.0 A, and V_GS = 0 V. This parameter is critical for freewheeling and synchronous rectification analysis. At elevated temperatures (e.g., 150 °C), V_SD decreases slightly (~1.3 V), as shown in Figure 6 of the IRFU430APBF datasheet.

IRFU430APBF Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Package/Case:: TO-251-3 Short Leads, IPAK, TO-251AA

Packaging:: Tube

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 500 V

Current - Continuous Drain (Id) @ 25°C:: 5A (Tc)

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

Rds On (Max) @ Id, Vgs:: 1.7Ohm @ 3A, 10V

Vgs(th) (Max) @ Id:: 4.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 24 nC @ 10 V

Vgs (Max):: ±30V

Input Capacitance (Ciss) (Max) @ Vds:: 490 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 110W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-251AA

IRFU430APBF FAQ

1.How can I place an order for IRFU430APBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFU430APBF 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 IRFU430APBF reliable?

The price and inventory of IRFU430APBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFU430APBF is usually 5 days.

3.What payment methods are accepted for IRFU430APBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFU430APBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFU430APBF?

IRFU430APBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFU430APBF 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 IRFU430APBF?

For technical support, including IRFU430APBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFU430APBF requirements.

6.How does Aetrix verify that IRFU430APBF is sourced from the original manufacturer or authorized distributors?

All IRFU430APBF 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 IRFU430APBF meets industry standards.

7.What is the process for return or replacement of IRFU430APBF?

All IRFU430APBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFU430APBF, 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 IRFU430APBF part is unused and in its original packaging.

Return procedure for IRFU430APBF:

1.Submit a request within 90 days.

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

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