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

Vishay Siliconix IRL620S

Name: IRL620S
Brand: Vishay Siliconix
SKU: IRL620S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL620S

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

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

Datasheet:: IRL620S.pdf

Description:: MOSFET N-CH 200V 5.2A D2PAK

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Product details

Overview

IRL620S from Vishay Siliconix is a logic-level N-channel power MOSFET in D2PAK (TO-263) package, rated for 200 V V_DS, 5.2 A continuous drain current at T_C = 25 °C, and 0.80 Ω R_DS(on) at V_GS = 10 V. It supports fast switching, repetitive avalanche operation, and is optimized for high-current DC-DC converters and motor control circuits requiring low gate drive voltage.

For engineers reviewing the IRL620S datasheet, IRL620S pinout, IRL620S application, or IRL620S equivalent, key selection criteria include its 4 V logic-level gate threshold, 16 nC total gate charge, 2.5 °C/W junction-to-case thermal resistance, and D2PAK surface-mount footprint compatibility with high-power PCB layouts.

Technical Context

The IRL620S employs third-generation trench-gate silicon technology to achieve low on-resistance while maintaining rugged unclamped inductive switching capability. Its dynamic dV/dt rating of 5.0 V/ns and 125 mJ single-pulse avalanche energy support reliable operation in hard-switched topologies.

Designed for surface-mount assembly, the device integrates a robust body diode with 180–270 ns reverse recovery time and 1.1–1.7 μC Q_rr, enabling moderate-frequency synchronous rectification and freewheeling in buck and half-bridge configurations without external Schottky supplementation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	200 V - Supports input rails up to 170 V DC in offline SMPS or 48 V industrial bus systems with margin.
R_DS(on) @ V_GS = 4 V	1.0 Ω - Enables full enhancement using standard 3.3 V or 5 V microcontroller GPIOs without level-shifting.
Q_g	16 nC - Determines gate driver power requirement; compatible with low-cost discrete or integrated drivers like TC4427.
I_D (continuous, T_C = 25 °C)	5.2 A - Delivers ~10 W conduction loss at 0.8 Ω in thermally optimized D2PAK mounting.
R_thJC	2.5 °C/W - Enables 50 W power dissipation with ≤ 125 °C junction rise above case when heatsinked.
E_AS	125 mJ - Withstands single unclamped inductive energy spikes typical in relay driving or solenoid control.

Pinout & Package

D2PAK (TO-263) package: surface-mount, single-ended heat sink tab (Drain), 3-terminal configuration with exposed thermal pad. Dimensions per JEDEC outline TO-263AB: 10.67 mm × 9.65 mm × 4.83 mm (L × W × H), 2.54 mm lead pitch.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Logic-level control input; requires ≤ 10 V drive; gate leakage < ±100 nA ensures low standby current.
2 (D)	Drain	Main power output terminal and thermal path; electrically connected to exposed copper tab for heatsinking.
3 (S)	Source	Power return and reference node; internal source inductance 7.5 nH affects high-di/dt switching ringing.

Key Features

Feature	Design Value
Logic-level gate drive	V_GS(th) = 1.0–2.0 V enables direct interface with 3.3 V/5 V MCUs and CPLDs without gate drivers.
Repetitive avalanche rated	Rated for 5.2 A I_AR and 5.0 mJ E_AR - supports reliable operation in inductive load switching without snubbers.
Dynamic dV/dt immunity	5.0 V/ns rating prevents false turn-on during high-speed voltage transients in noisy power stages.
Low Q_gd/Q_g ratio	9.6/16 = 60 % - improves Miller immunity and reduces switching instability in high-side configurations.

Applications

DC-DC Converter Primary Switch	Brushed DC Motor Driver High-Side
Use Scenario: 12–48 V input buck converter delivering up to 5 A to FPGA or ASIC core rails. IC Role / Device Role / Timing Role: Main power switch operating at 200–500 kHz with synchronous rectification. Use Value: 0.80 Ω R_DS(on) at 10 V and 1.0 Ω at 4 V minimizes conduction loss across input voltage range while supporting logic-level PWM control.	Use Scenario: 24 V industrial motor control board driving 3–5 A brushed motors in HVAC actuators. IC Role / Device Role / Timing Role: High-side switch controlling motor direction via H-bridge upper quadrant. Use Value: Repetitive avalanche rating absorbs inductive kickback during PWM commutation without external clamping diodes.
AC-DC Auxiliary Supply Switch	Solenoid/Relay Driver
Use Scenario: Off-line flyback auxiliary supply powering control circuitry in 200–240 VAC SMPS. IC Role / Device Role / Timing Role: Primary-side switch handling 200 V blocking and 5.2 A peak current pulses. Use Value: 200 V V_DS rating provides >2× safety margin over reflected 100 V clamp voltage in universal-input designs.	Use Scenario: PLC output module switching 24 V DC solenoids with 100–500 ms dwell times. IC Role / Device Role / Timing Role: Low-duty-cycle power switch managing inductive loads with slow turn-off. Use Value: 125 mJ single-pulse avalanche energy safely dissipates stored magnetic energy during forced turn-off events.

DC-DC Converter Primary Switch

Brushed DC Motor Driver High-Side

Use Scenario: 12–48 V input buck converter delivering up to 5 A to FPGA or ASIC core rails.

IC Role / Device Role / Timing Role: Main power switch operating at 200–500 kHz with synchronous rectification.

Use Value: 0.80 Ω R_DS(on) at 10 V and 1.0 Ω at 4 V minimizes conduction loss across input voltage range while supporting logic-level PWM control.

Use Scenario: 24 V industrial motor control board driving 3–5 A brushed motors in HVAC actuators.

IC Role / Device Role / Timing Role: High-side switch controlling motor direction via H-bridge upper quadrant.

Use Value: Repetitive avalanche rating absorbs inductive kickback during PWM commutation without external clamping diodes.

AC-DC Auxiliary Supply Switch

Solenoid/Relay Driver

Use Scenario: Off-line flyback auxiliary supply powering control circuitry in 200–240 VAC SMPS.

IC Role / Device Role / Timing Role: Primary-side switch handling 200 V blocking and 5.2 A peak current pulses.

Use Value: 200 V V_DS rating provides >2× safety margin over reflected 100 V clamp voltage in universal-input designs.

Use Scenario: PLC output module switching 24 V DC solenoids with 100–500 ms dwell times.

IC Role / Device Role / Timing Role: Low-duty-cycle power switch managing inductive loads with slow turn-off.

Use Value: 125 mJ single-pulse avalanche energy safely dissipates stored magnetic energy during forced turn-off events.

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
STP20NM50FP	500 V V_DS, 20 A I_D, 0.23 Ω R_DS(on), TO-220FP package - higher voltage rating but larger footprint and no logic-level gate.	Requires gate driver for 3.3 V control; better suited for 400 V PFC stages than 200 V DC-DC.	Select when higher blocking voltage and current headroom outweigh surface-mount and logic-level requirements.
IRFZ44NPBF	55 V V_DS, 49 A I_D, 0.028 Ω R_DS(on), TO-220 - lower voltage, much higher current, non-logic-level (V_GS(th) = 2–4 V).	Not suitable for 200 V applications; optimal for 12–24 V high-current motor drives.	Choose only for low-voltage, high-current scenarios where IRL620S's voltage rating is excessive.

Compared with STP20NM50FP and IRFZ44NPBF, the IRL620S uniquely balances 200 V rating, logic-level gate, D2PAK surface-mount compatibility, and 5.2 A current capacity-making it optimal for space-constrained, medium-voltage industrial power stages where gate drive simplicity and thermal performance are critical.

Availability

IRL620S is available at Aetrix Electronics and suitable for DC-DC converters, motor control modules, and solenoid driver circuits requiring stable component supply, RoHS-compliant sourcing, and long-term industrial lifecycle support.

Supply support for IRL620S 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 MOSFETs, diodes, and optoelectronics with emphasis on power efficiency and ruggedness.

The IRL620S belongs to Vishay's logic-level power MOSFET product line, engineered for industrial and automotive power conversion where low gate drive voltage, avalanche robustness, and surface-mount thermal performance are essential.

FAQ

What is the maximum continuous drain current for IRL620S at 100 °C case temperature?

The IRL620S supports 3.3 A continuous drain current at T_C = 100 °C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limitations of the D2PAK package under sustained high-temperature operation and must be verified against actual PCB layout and heatsinking in the final design. The IRL620S datasheet confirms this value applies to both leaded and lead-free versions including IRL620STRLPbFa.

Does IRL620S require a gate resistor for safe switching?

Yes, the IRL620S benefits from an external gate resistor to control dI/dt and suppress oscillation. With 16 nC total gate charge and 7.5 nH source inductance, uncontrolled gate drive can cause ringing and shoot-through in bridge configurations. A 9.0 Ω resistor is used in the official switching time test circuit (Fig. 10b), and values between 5–22 Ω are typical for 100–500 kHz operation. The IRL620S gate threshold and Miller plateau characteristics make gate resistance critical for EMI and reliability.

Is IRL620S suitable for use in synchronous rectification?

The IRL620S is not recommended for synchronous rectification due to its body diode's relatively slow reverse recovery (180–270 ns) and high Q_rr (1.1–1.7 μC). While functional in low-frequency (< 100 kHz) freewheeling roles, its recovery characteristics increase switching loss and EMI compared to dedicated sync rectifiers like SiR872DP or FDMC7680S. For synchronous rectification, the IRL620S should be replaced with devices optimized for low Q_rr and fast trr.

What is the thermal resistance from junction to ambient for IRL620S in standard PCB mount?

In standard 1" square FR-4 PCB mount, the IRL620S has a maximum junction-to-ambient thermal resistance (R_thJA) of 40 °C/W, per the Thermal Resistance Ratings table. This value assumes no external heatsink and accounts for conduction through the D2PAK thermal pad into the copper plane. When mounted on a minimal 1"² board, the IRL620S can dissipate 3.1 W continuously - consistent with its 3.1 W maximum power rating under those conditions.

Can IRL620S replace IRLZ44N in a 24 V motor control application?

No - the IRL620S is not a drop-in replacement for IRLZ44N. Although both are logic-level N-channel MOSFETs, the IRL620S has 200 V V_DS and 5.2 A I_D, whereas the IRLZ44N is rated for 55 V and 47 A. Substituting IRL620S in a 24 V system would result in significantly higher R_DS(on) (1.0 Ω @ 4 V vs. 0.028 Ω), causing excessive conduction loss and thermal stress. The IRL620S is intended for medium-voltage applications where the IRLZ44N's voltage rating is insufficient.

IRL620S Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

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

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 200 V

Current - Continuous Drain (Id) @ 25°C:: 5.2A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4V, 10V

Rds On (Max) @ Id, Vgs:: 800mOhm @ 3.1A, 10V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 16 nC @ 5 V

Vgs (Max):: ±10V

Input Capacitance (Ciss) (Max) @ Vds:: 360 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 3.1W (Ta), 50W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263 (D2PAK)

IRL620S FAQ

1.How can I place an order for IRL620S through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL620S 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 IRL620S reliable?

The price and inventory of IRL620S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL620S is usually 5 days.

3.What payment methods are accepted for IRL620S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL620S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL620S?

IRL620S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL620S 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 IRL620S?

For technical support, including IRL620S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL620S requirements.

6.How does Aetrix verify that IRL620S is sourced from the original manufacturer or authorized distributors?

All IRL620S 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 IRL620S meets industry standards.

7.What is the process for return or replacement of IRL620S?

All IRL620S units undergo pre-shipment inspection (PSI). If there is an issue with IRL620S, 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 IRL620S part is unused and in its original packaging.

Return procedure for IRL620S:

1.Submit a request within 90 days.

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

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