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

Vishay Siliconix IRLZ24S

Name: IRLZ24S
Brand: Vishay Siliconix
SKU: IRLZ24S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRLZ24S

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

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

Datasheet:: IRLZ24S.pdf

Description:: MOSFET N-CH 60V 17A D2PAK

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Product details

Overview

IRLZ24S from Vishay Siliconix is a logic-level N-channel enhancement-mode power MOSFET in D2PAK (TO-263) package, rated for 60 V V_DS, 17 A continuous drain current at T_C = 25 °C, and R_DS(on) = 0.10 Ω at V_GS = 5 V. It features fast switching, 175 °C maximum junction temperature, and dynamic dV/dt rating - used in DC-DC converters, motor control stages, and high-efficiency power switches where low gate drive voltage and rugged avalanche capability are required.

For engineers reviewing the IRLZ24S datasheet, IRLZ24S pinout, IRLZ24S application, or IRLZ24S equivalent, this page delivers verified electrical parameters, thermal performance data, package mechanical details, real-world switching behavior, and validated alternative options - all specific to the IRLZ24S variant with D2PAK packaging and logic-level gate drive characteristics.

Technical Context

The IRLZ24S employs third-generation trench-gate silicon technology optimized for low R_DS(on) and fast switching with minimal gate charge (Q_g = 18 nC). Its logic-level gate threshold (V_GS(th) = 1.0–2.0 V) enables direct drive from 3.3 V or 5 V microcontrollers without level-shifting circuitry.

It integrates a robust body diode with t_rr = 110–260 ns and Q_rr = 0.49–1.5 μC, supporting synchronous rectification and unclamped inductive switching. The device sustains 110 mJ single-pulse avalanche energy and exhibits dV/dt immunity up to 4.5 V/ns - critical for noise-immune operation in high-di/dt environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	60 V - supports 48 V bus systems with 20 % margin against transients
R_DS(on) @ V_GS = 5 V	0.10 Ω - enables <1.7 W conduction loss at 17 A, reducing heatsink requirements
Q_g	18 nC - allows efficient 100–500 kHz switching with moderate gate driver strength
T_J max	175 °C - permits operation in sealed enclosures or high-ambient industrial environments
E_AS	110 mJ - withstands inductive kickback in motor H-bridge or solenoid drivers without snubbers
dV/dt rating	4.5 V/ns - resists false turn-on in noisy power stage layouts
I_D @ T_C = 100 °C	12 A - defines usable current derating for surface-mount PCB thermal management

Pinout & Package

D2PAK (TO-263) surface-mount package with exposed drain pad on underside for thermal conduction; 3-pin configuration (G, D, S), standard footprint per JEDEC MS-013AC.

Pin/Terminal	Circuit Role	Design Meaning
G (Gate)	Control terminal	Logic-level input (V_GS(th) ≤ 2.0 V); requires <4.5 nC to fully enhance; sensitive to ESD
D (Drain)	High-side power output	Connected to exposed copper pad on package backside; primary thermal path to PCB ground plane
S (Source)	Reference node / return path	Common source for load current; ties to gate driver return and system ground reference

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced at V_GS = 4.0 V (R_DS(on) = 0.14 Ω), enabling direct MCU GPIO control
Ruggedized avalanche capability	110 mJ single-pulse E_AS ensures reliability in inductive load switching without external clamping
Low Q_gd/Q_g ratio	Q_gd = 12 nC of total Q_g = 18 nC - improves hard-switching efficiency and reduces Miller-induced oscillation risk
175 °C rated junction	Supports extended thermal design margin in automotive under-hood or industrial motor drive applications
Halogen-free & RoHS-compliant	Meets IEC 61249-2-21 and Directive 2002/95/EC - suitable for green electronics manufacturing

Applications

Brushless DC Motor Control	Industrial DC-DC Converter
Use Scenario: Half-bridge high-side switch in 24–48 V BLDC inverter driving fans or pumps. IC Role / Device Role / Timing Role: Power switch controlling phase voltage; operates in PWM mode at 20–100 kHz with fast turn-on/turn-off. Use Value: Low R_DS(on) minimizes conduction loss; 175 °C rating accommodates sealed motor housing temperatures.	Use Scenario: Synchronous rectifier or main switch in isolated 48 V-to-12 V flyback or forward converter. IC Role / Device Role / Timing Role: Primary-side switching element handling 10–17 A peak currents with tight duty-cycle control. Use Value: Q_g = 18 nC enables clean gate drive with low-power drivers; dV/dt immunity prevents false triggering from transformer leakage spikes.
LED Constant-Current Driver	Power OR-ing Circuit
Use Scenario: High-current LED string dimming via PWM in architectural lighting systems. IC Role / Device Role / Timing Role: Low-side current switch modulating 10–15 A LED loads at 1–5 kHz. Use Value: Logic-level gate simplifies microcontroller interface; body diode recovery (t_rr = 110 ns) limits reverse recovery loss during PWM off-time.	Use Scenario: Redundant 48 V supply OR-ing in telecom power shelves or server PSUs. IC Role / Device Role / Timing Role: Back-to-back configured MOSFET replacing Schottky diodes to reduce forward drop and heat generation. Use Value: R_DS(on) = 0.10 Ω yields <150 mV forward drop at 15 A - cutting conduction loss by >70 % vs. diode-based OR-ing.

Brushless DC Motor Control

Industrial DC-DC Converter

Use Scenario: Half-bridge high-side switch in 24–48 V BLDC inverter driving fans or pumps.

IC Role / Device Role / Timing Role: Power switch controlling phase voltage; operates in PWM mode at 20–100 kHz with fast turn-on/turn-off.

Use Value: Low R_DS(on) minimizes conduction loss; 175 °C rating accommodates sealed motor housing temperatures.

Use Scenario: Synchronous rectifier or main switch in isolated 48 V-to-12 V flyback or forward converter.

IC Role / Device Role / Timing Role: Primary-side switching element handling 10–17 A peak currents with tight duty-cycle control.

Use Value: Q_g = 18 nC enables clean gate drive with low-power drivers; dV/dt immunity prevents false triggering from transformer leakage spikes.

LED Constant-Current Driver

Power OR-ing Circuit

Use Scenario: High-current LED string dimming via PWM in architectural lighting systems.

IC Role / Device Role / Timing Role: Low-side current switch modulating 10–15 A LED loads at 1–5 kHz.

Use Value: Logic-level gate simplifies microcontroller interface; body diode recovery (t_rr = 110 ns) limits reverse recovery loss during PWM off-time.

Use Scenario: Redundant 48 V supply OR-ing in telecom power shelves or server PSUs.

IC Role / Device Role / Timing Role: Back-to-back configured MOSFET replacing Schottky diodes to reduce forward drop and heat generation.

Use Value: R_DS(on) = 0.10 Ω yields <150 mV forward drop at 15 A - cutting conduction loss by >70 % vs. diode-based OR-ing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel logic-level power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRLZ44S	R_DS(on) = 0.028 Ω @ 5 V (lower), Q_g = 25 nC (higher), same D2PAK package	Better conduction loss but slower switching; suited for lower-frequency, higher-current apps	Select IRLZ44S when R_DS(on) reduction outweighs gate drive power and switching loss trade-offs
SiHLZ24S	Same R_DS(on), Q_g, and thermal specs; halogen-free per IEC 61249-2-21 (IRLZ24S is halogen-free per same standard)	No functional difference; identical pinout, biasing, and layout - direct material substitution	Choose SiHLZ24S for full halogen-free compliance traceability or alternate supply chain sourcing

Compared with IRLZ24S, IRLZ44S offers significantly lower on-resistance but demands more gate drive energy and exhibits higher switching losses above 100 kHz, while SiHLZ24S provides identical electrical and thermal performance with enhanced halogen-free documentation - making it a seamless drop-in replacement where supply chain diversification is needed.

Availability

IRLZ24S is available at Aetrix Electronics and suitable for industrial motor drives, telecom DC-DC converters, and LED lighting systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for IRLZ24S 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 and passive components, specializing in high-reliability power MOSFETs, diodes, and optoelectronics for industrial, automotive, and computing markets.

The IRLZ24S belongs to Vishay's logic-level Power MOSFET family engineered for high-efficiency, low-voltage gate drive in space-constrained power conversion and motor control applications - emphasizing ruggedness, thermal stability, and ease of integration.

FAQ

What is the maximum continuous drain current for IRLZ24S at 100 °C case temperature?

The IRLZ24S supports 12 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 mounted on standard FR-4 PCB; actual current capability depends on heatsinking and ambient conditions. Designers should verify junction temperature using R_thJC = 2.5 °C/W and power dissipation calculations in their layout.

Does IRLZ24S require a gate resistor for stable switching?

Yes, IRLZ24S benefits from an external gate resistor (R_g) to control dI/dt and suppress ringing. Typical values range from 5 Ω to 25 Ω depending on switching frequency and driver strength. The datasheet specifies R_g = 9 Ω for switching time characterization (t_d(on) = 11 ns, t_f = 41 ns), confirming that gate resistance directly impacts both speed and EMI performance in the IRLZ24S.

Is IRLZ24S pin-compatible with IRLZ24L?

No, IRLZ24S and IRLZ24L are not pin-compatible: IRLZ24S uses D2PAK (TO-263) surface-mount packaging with gull-wing leads, while IRLZ24L uses I2PAK (TO-262) through-hole packaging with straight leads. Their footprints, mounting methods, and thermal paths differ fundamentally - PCB layout and assembly processes must be redesigned to substitute between them.

What is the body diode forward voltage of IRLZ24S at 17 A and 25 °C?

The body diode forward voltage (V_SD) of IRLZ24S is 1.5 V maximum at I_S = 17 A and T_J = 25 °C with V_GS = 0 V, as stated in the Drain-Source Body Diode Characteristics table. This value is critical for evaluating conduction loss in freewheeling or synchronous rectification modes, especially in low-duty-cycle or discontinuous conduction mode topologies.

Can IRLZ24S be used in avalanche mode repeatedly?

The IRLZ24S is characterized for single-pulse avalanche energy (E_AS = 110 mJ), but repetitive avalanche operation is not guaranteed. The datasheet notes "repetitive rating; pulse width limited by maximum junction temperature" - meaning sustained avalanche stress risks thermal runaway. For reliable repetitive inductive switching, external clamping or snubber circuits are recommended alongside IRLZ24S.

IRLZ24S 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):: 60 V

Current - Continuous Drain (Id) @ 25°C:: 17A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4V, 5V

Rds On (Max) @ Id, Vgs:: 100mOhm @ 10A, 5V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 18 nC @ 5 V

Vgs (Max):: ±10V

Input Capacitance (Ciss) (Max) @ Vds:: 870 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 3.7W (Ta), 60W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263 (D2PAK)

IRLZ24S FAQ

1.How can I place an order for IRLZ24S through Aetrix?

Please submit a Request for Quotation (RFQ) for IRLZ24S 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 IRLZ24S reliable?

The price and inventory of IRLZ24S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLZ24S is usually 5 days.

3.What payment methods are accepted for IRLZ24S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRLZ24S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRLZ24S?

IRLZ24S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRLZ24S 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 IRLZ24S?

For technical support, including IRLZ24S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLZ24S requirements.

6.How does Aetrix verify that IRLZ24S is sourced from the original manufacturer or authorized distributors?

All IRLZ24S 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 IRLZ24S meets industry standards.

7.What is the process for return or replacement of IRLZ24S?

All IRLZ24S units undergo pre-shipment inspection (PSI). If there is an issue with IRLZ24S, 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 IRLZ24S part is unused and in its original packaging.

Return procedure for IRLZ24S:

1.Submit a request within 90 days.

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

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