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

Vishay Siliconix IRFP460A

Name: IRFP460A
Brand: Vishay Siliconix
SKU: IRFP460A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFP460A

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

Package:: TO-247-3

Datasheet:: IRFP460A.pdf

Description:: MOSFET N-CH 500V 20A TO247-3

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Product details

Overview

IRFP460A from Vishay Siliconix is a 500 V, 20 A N-channel enhancement-mode power MOSFET in TO-247AC package, featuring R_DS(on) = 0.27 Ω at V_GS = 10 V, Q_g = 105 nC, and 960 mJ single-pulse avalanche energy - engineered for high-voltage switching in full-bridge and PFC boost topologies of industrial SMPS and UPS systems.

For engineers reviewing the IRFP460A datasheet, IRFP460A pinout, IRFP460A application, or IRFP460A equivalent, this page delivers verified electrical ratings, thermal resistance (R_thJC = 0.45 °C/W), body diode recovery characteristics (t_rr = 480–710 ns), and gate charge waveform behavior critical for hard-switched converter design and layout validation.

Technical Context

The IRFP460A employs planar vertical DMOS technology with fully characterized C_iss (3100 pF), C_oss (480 pF), and C_rss (18 pF) to support accurate snubber and gate drive loss calculation. Its 0.27 Ω R_DS(on) and 11 S transconductance enable low conduction loss and stable gain across temperature.

Avalanche ruggedness is validated per JEDEC JESD24-1: E_AS = 960 mJ (T_J = 25 °C), I_AR = 20 A repetitive, and dV/dt = 3.8 V/ns peak diode recovery rating - confirming suitability for unclamped inductive switching without external clamping in well-designed layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	500 V - supports DC bus voltages up to 400 V in PFC and full-bridge converters with margin.
R_DS(on)	0.27 Ω @ V_GS = 10 V - enables <1.1 W conduction loss at 20 A, reducing heatsink requirements.
Q_g	105 nC - determines gate driver current demand (~2.5 A avg. for 40 ns rise time with 4.3 Ω R_G).
E_AS	960 mJ - allows safe operation under unclamped inductive turn-off (e.g., transformer leakage spikes) without failure.
t_rr	480–710 ns - defines minimum dead-time requirement to prevent shoot-through during synchronous rectification.
R_thJC	0.45 °C/W - enables 280 W dissipation with ≤126 °C junction rise above 25 °C case temperature.
I_D (T_C = 100 °C)	13 A - sets practical continuous current limit in thermally constrained enclosures.

Pinout & Package

IRFP460A uses the TO-247AC (JEDEC standard) package with isolated drain tab, optimized for high-voltage isolation and thermal transfer via mounting screw (6–32 or M3, 10 lbf·in torque). The plastic body conforms to version 1 (facility code 9), with D = 20.40–20.70 mm, E = 15.50–15.87 mm, and thermal pad optional (D1/E1 dimensions defined).

Pin/Terminal	Circuit Role	Design Meaning
1 (Lead)	Gate	High-impedance control terminal requiring <26 nC charge to reach threshold; sensitive to ESD and ringing.
2 (Tab/Drain)	Drain	Main high-side switching node; electrically connected to metal tab - must be isolated from heatsink unless referenced to same potential.
3 (Lead)	Source	Power return path and gate reference; carries full load current and body diode reverse recovery charge (Q_rr = 5.0–7.5 µC).
4 (Lead)	Drain	Secondary drain connection - internally tied to pin 2; used for redundant current path or Kelvin sensing in high-precision designs.

Key Features

Feature	Design Value
Low gate charge (Q_g = 105 nC)	Reduces gate driver power loss and simplifies selection of low-current drivers (e.g., TC4420) without bootstrapping complexity.
Fully characterized C_oss and C_rss	Enables precise modeling of Miller effect and zero-voltage switching (ZVS) feasibility in resonant topologies.
Effective output capacitance (C_{oss eff.} = 140 pF)	Reflects actual energy stored in C_oss during V_DS transition from 0 to 400 V - critical for soft-switching loss estimation.
Body diode t_rr and Q_rr specified	Supports reliable synchronous rectification design with predictable reverse recovery stress on complementary switches.
Avalanche-rated (E_AS = 960 mJ)	Eliminates need for external RCD clamp in many flyback and forward converter designs operating below 20 A peak current.

Applications

Industrial Switch Mode Power Supply	Uninterruptible Power Supply (UPS)
Use Scenario: High-efficiency 3–5 kW offline SMPS using full-bridge topology with 380–400 V DC bus. IC Role / Device Role / Timing Role: Primary-side high-voltage switching device handling 20 A pulsed drain current at 50–100 kHz. Use Value: 0.27 Ω R_DS(on) minimizes conduction loss while 960 mJ E_AS withstands transformer leakage energy without snubber.	Use Scenario: Online double-conversion UPS delivering clean 230 V AC output from battery-backed DC link. IC Role / Device Role / Timing Role: Inverter-stage switch in H-bridge output stage, commutating 15 A RMS load current. Use Value: 3.8 V/ns dV/dt rating ensures robust body diode recovery during polarity reversal, preventing cross-conduction.
High-Voltage DC-DC Converter	PFC Boost Stage
Use Scenario: Isolated 1 kV output DC-DC module for test equipment, fed from 400 V PFC front-end. IC Role / Device Role / Timing Role: Primary-side switch in phase-shifted full-bridge, operating with ZVS at 100 kHz. Use Value: Low C_rss (18 pF) and C_{oss eff.} (140 pF) reduce capacitive turn-on loss and improve ZVS window margin.	Use Scenario: Active PFC stage in 2 kW server PSU, boosting rectified AC to regulated 400 V DC. IC Role / Device Role / Timing Role: Boost switch conducting 12 A average current with 80 A pulsed peaks. Use Value: 80 A I_DM rating accommodates line surge currents; 105 nC Q_g enables efficient gate drive at 65–100 kHz.

Industrial Switch Mode Power Supply

Uninterruptible Power Supply (UPS)

Use Scenario: High-efficiency 3–5 kW offline SMPS using full-bridge topology with 380–400 V DC bus.

IC Role / Device Role / Timing Role: Primary-side high-voltage switching device handling 20 A pulsed drain current at 50–100 kHz.

Use Value: 0.27 Ω R_DS(on) minimizes conduction loss while 960 mJ E_AS withstands transformer leakage energy without snubber.

Use Scenario: Online double-conversion UPS delivering clean 230 V AC output from battery-backed DC link.

IC Role / Device Role / Timing Role: Inverter-stage switch in H-bridge output stage, commutating 15 A RMS load current.

Use Value: 3.8 V/ns dV/dt rating ensures robust body diode recovery during polarity reversal, preventing cross-conduction.

High-Voltage DC-DC Converter

PFC Boost Stage

Use Scenario: Isolated 1 kV output DC-DC module for test equipment, fed from 400 V PFC front-end.

IC Role / Device Role / Timing Role: Primary-side switch in phase-shifted full-bridge, operating with ZVS at 100 kHz.

Use Value: Low C_rss (18 pF) and C_{oss eff.} (140 pF) reduce capacitive turn-on loss and improve ZVS window margin.

Use Scenario: Active PFC stage in 2 kW server PSU, boosting rectified AC to regulated 400 V DC.

IC Role / Device Role / Timing Role: Boost switch conducting 12 A average current with 80 A pulsed peaks.

Use Value: 80 A I_DM rating accommodates line surge currents; 105 nC Q_g enables efficient gate drive at 65–100 kHz.

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
STP20NM50FP	R_DS(on) = 0.22 Ω (lower), but V_DS = 500 V same; Q_g = 70 nC (33% lower); TO-220FP package (lower power dissipation capability).	Limited to ≤120 W continuous use due to R_thJA = 65 °C/W; unsuitable for 280 W IRFP460A-level thermal loads.	Select only when board space constraints prohibit TO-247 and power level stays below 100 W.
IXFH30N50P	V_DS = 500 V, R_DS(on) = 0.18 Ω, Q_g = 120 nC; TO-247 package; higher E_AS = 1200 mJ but no C_{oss eff.} spec.	Better conduction efficiency but higher gate drive loss; lacks published body diode Q_rr, limiting synchronous rectifier confidence.	Prefer for new designs prioritizing lowest R_DS(on), provided gate driver can supply >3 A peak and layout accommodates higher Q_g.

Compared with STP20NM50FP and IXFH30N50P, the IRFP460A offers balanced trade-offs: sufficient R_DS(on) for cost-sensitive 2–5 kW SMPS, proven avalanche performance with documented E_AS and Q_rr, and TO-247 thermal capability unmatched by TO-220 alternatives.

Availability

IRFP460A is available at Aetrix Electronics and suitable for industrial switch mode power supplies, uninterruptible power supplies, and high-speed power switching applications requiring stable component supply, long-term lifecycle support, and traceable sourcing from qualified manufacturing facilities.

Supply support for IRFP460A 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 with emphasis on ruggedness, thermal performance, and application-specific characterization.

The IRFP460A belongs to Vishay's high-voltage power MOSFET product line, designed specifically for demanding industrial and telecom power conversion where avalanche capability, low gate charge, and repeatable SOA performance are mandatory.

FAQ

What is the maximum continuous drain current for IRFP460A at 100 °C case temperature?

The IRFP460A supports 13 A continuous drain current at T_C = 100 °C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limits of the TO-247 package and ensures junction temperature remains ≤150 °C under steady-state conditions with proper heatsinking and R_thJC = 0.45 °C/W.

Does IRFP460A have a built-in body diode, and what are its key recovery parameters?

Yes, the IRFP460A integrates a monolithic body diode with t_rr = 480–710 ns and Q_rr = 5.0–7.5 µC at T_J = 25 °C, I_F = 20 A, and dI/dt = 100 A/µs. These values are measured and guaranteed, enabling accurate dead-time calculation and stress analysis in synchronous rectifier or half-bridge configurations.

Can IRFP460A be used in avalanche mode, and what is its single-pulse energy rating?

Yes, the IRFP460A is fully rated for repetitive and single-pulse avalanche operation. Its single-pulse avalanche energy (E_AS) is 960 mJ at T_J = 25 °C, tested per JEDEC JESD24-1 with L = 4.3 mH and I_AS = 20 A. This rating is validated and published in the datasheet, not estimated.

What is the gate-source voltage limit for IRFP460A, and why is it critical?

The IRFP460A has a ±30 V absolute maximum gate-source voltage (V_GS). Exceeding this risks permanent gate oxide damage. During switching, transient overshoot from PCB inductance or poor gate routing can breach this limit - hence gate resistors and TVS clamping are recommended, especially in high-dI/dt environments.

How does the effective output capacitance (C_{oss eff.}) of IRFP460A differ from standard C_oss?

C_{oss eff.} = 140 pF for the IRFP460A is a derived value representing the fixed capacitance that yields the same charging time as the nonlinear C_oss while V_DS rises from 0 % to 80 % of 400 V. Unlike typical C_oss (480 pF at V_DS = 25 V), C_{oss eff.} directly correlates to turn-on energy loss in hard-switched converters.

IRFP460A Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Package/Case:: TO-247-3

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 500 V

Current - Continuous Drain (Id) @ 25°C:: 20A (Tc)

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

Rds On (Max) @ Id, Vgs:: 270mOhm @ 12A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 105 nC @ 10 V

Vgs (Max):: ±30V

Input Capacitance (Ciss) (Max) @ Vds:: 3100 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 280W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-247AC

IRFP460A FAQ

1.How can I place an order for IRFP460A through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFP460A 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 IRFP460A reliable?

The price and inventory of IRFP460A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFP460A is usually 5 days.

3.What payment methods are accepted for IRFP460A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFP460A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFP460A?

IRFP460A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFP460A 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 IRFP460A?

For technical support, including IRFP460A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFP460A requirements.

6.How does Aetrix verify that IRFP460A is sourced from the original manufacturer or authorized distributors?

All IRFP460A 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 IRFP460A meets industry standards.

7.What is the process for return or replacement of IRFP460A?

All IRFP460A units undergo pre-shipment inspection (PSI). If there is an issue with IRFP460A, 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 IRFP460A part is unused and in its original packaging.

Return procedure for IRFP460A:

1.Submit a request within 90 days.

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

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