Vishay Siliconix IRL530

Overview

IRL530 from Vishay Siliconix is a logic-level N-channel Power MOSFET in TO-220AB package, rated for 100 V V_DS, 15 A continuous drain current at T_C = 25 °C, and 0.16 Ω R_DS(on) at V_GS = 5 V. It supports fast switching, repetitive avalanche operation, and operates up to 175 °C junction temperature - commonly used in DC-DC converters, motor control stages, and industrial power supplies.

For engineers reviewing the IRL530 datasheet, IRL530 pinout, IRL530 application, or IRL530 equivalent, key selection criteria include its logic-level gate drive compatibility (V_GS(th) = 1.0–2.0 V), low R_DS(on) at 4–5 V, avalanche energy rating (E_AS = 290 mJ), thermal resistance (R_thJC = 1.7 °C/W), and TO-220AB mechanical footprint.

Technical Context

The IRL530 employs third-generation silicon process technology optimized for low on-resistance and rugged unclamped inductive switching. Its gate threshold voltage (1.0–2.0 V) enables direct drive from 3.3 V or 5 V microcontrollers without level-shifting circuitry.

It features integrated body diode with t_rr = 150–200 ns and Q_rr = 0.93–1.4 μC, and is characterized for dynamic dV/dt immunity (5.5 V/ns) and linear derating (0.59 W/°C above 25 °C case temperature).

Key Specifications

Pinout & Package

IRL530 uses the industry-standard TO-220AB package with isolated tab (drain-connected), 3-pin vertical lead configuration, and 1.7 °C/W junction-to-case thermal resistance. Mounting torque: 10 lbf·in (1.1 N·m) for M3 screw.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP16NF06L and IRFZ44NPBF, the IRL530 uniquely balances 100 V rating, true logic-level operation, and rugged avalanche performance - making it the preferred choice for 24–80 V industrial switching where gate drive simplicity and transient robustness are critical.

Availability

IRL530 is available at Aetrix Electronics and suitable for DC-DC converters, brushed motor drivers, and industrial power supplies requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for IRL530 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 power MOSFETs, diodes, and optoelectronics with emphasis on reliability, ruggedness, and application-specific optimization.

The IRL530 belongs to Vishay's third-generation logic-level Power MOSFET product line, engineered for industrial and commercial power conversion where ease of drive, avalanche survivability, and thermal robustness are essential.

FAQ

What is the maximum continuous drain current for the IRL530 at 100 °C case temperature?

The IRL530 supports 11 A continuous drain current at T_C = 100 °C, per its Absolute Maximum Ratings table. This derated value reflects thermal limitations of the TO-220AB package and must be applied when heatsink temperature exceeds 25 °C. The IRL530's linear derating factor is 0.59 W/°C, meaning power dissipation drops by 0.59 W for each degree above 25 °C case temperature. Always verify junction temperature using R_thJC = 1.7 °C/W in thermal calculations.

Is the IRL530 suitable for direct drive from a 3.3 V microcontroller GPIO?

Yes, the IRL530 is explicitly designed for logic-level gate drive and is fully enhanced at V_GS = 4.0 V (R_DS(on) = 0.22 Ω) and V_GS = 5.0 V (R_DS(on) = 0.16 Ω). Its gate threshold voltage range is 1.0–2.0 V, ensuring reliable turn-on with 3.3 V outputs. However, due to Q_g = 28 nC, ensure the MCU GPIO can source/sink sufficient peak current during switching - a series gate resistor (e.g., 10–47 Ω) is recommended to control ringing and EMI.

Does the IRL530 have an integrated body diode, and what are its key parameters?

Yes, the IRL530 includes an intrinsic body diode formed by the MOSFET's p-n junction. Key parameters include: continuous source-drain current I_S = 15 A, pulsed diode current I_SM = 60 A, forward voltage V_SD = 2.5 V at I_S = 15 A and T_J = 25 °C, reverse recovery time t_rr = 150–200 ns, and reverse recovery charge Q_rr = 0.93–1.4 μC. These values make the IRL530 suitable for freewheeling in buck or H-bridge topologies, though synchronous rectification may be preferred for higher efficiency.

What is the avalanche energy rating of the IRL530, and how is it tested?

The IRL530 is rated for single-pulse avalanche energy E_AS = 290 mJ, measured under conditions of V_DD = 25 V, starting T_J = 25 °C, L = 1.9 mH, and R_g = 25 Ω (per Fig. 12 test circuit). It also supports repetitive avalanche with I_AR = 15 A and E_AR = 8.8 mJ. This rating validates safe operation during unclamped inductive switching events - critical for relay drivers, solenoid controls, and motor phase commutation where voltage spikes exceed V_DS.

How does the TO-220AB package of the IRL530 affect thermal performance and PCB layout?

The TO-220AB package provides low R_thJC = 1.7 °C/W from junction to case, enabling efficient heat transfer to an external heatsink. Its isolated drain tab requires electrical isolation (e.g., mica washer + thermal pad) when mounted to a grounded heatsink. Layout best practices include short, wide traces for source and gate paths to minimize L_S = 7.5 nH and L_D = 4.5 nH, and placement away from noise-sensitive analog sections due to its 5.5 V/ns dV/dt immunity limit. Mounting torque must be 10 lbf·in (1.1 N·m) to ensure thermal contact integrity.