Vishay Siliconix IRLIZ14G

Overview

IRLIZ14G from Vishay Siliconix is a logic-level N-channel power MOSFET in TO-220 FULLPAK package, rated for 60 V V_DS, 8.0 A continuous drain current at T_C = 25 °C, and 0.20 Ω R_DS(on) at V_GS = 5.0 V. It features 2.5 kV_RMS isolation, 4.8 mm sink-to-lead creepage, and fast switching for industrial DC-DC converters and motor control.

For engineers reviewing the IRLIZ14G datasheet, IRLIZ14G pinout, IRLIZ14G application, or IRLIZ14G equivalent, this device is selected for high-voltage isolated switching where logic-level gate drive, low thermal resistance, and avalanche ruggedness are critical - especially in space-constrained commercial-industrial power stages requiring no external insulation hardware.

Technical Context

This MOSFET uses third-generation silicon process to achieve optimized trade-offs between conduction loss (R_DS(on) = 0.20 Ω @ 5 V), switching speed (t_r = 110 ns, t_f = 26 ns), and ruggedness (E_AS = 39.5 mJ). Its isolated TO-220 FULLPAK construction eliminates need for mica washers while maintaining 5.5 °C/W junction-to-case thermal resistance.

The device supports ease of paralleling via low gate charge (Q_g = 8.4 nC) and matched threshold voltage (V_GS(th) = 1.0–2.0 V), with body diode recovery (t_rr = 65–130 ns, Q_rr = 0.33–0.65 μC) characterized for hard-switched inductive loads.

Key Specifications

Pinout & Package

IRLIZ14G is housed in TO-220 FULLPAK package: isolated plastic body with metal tab (drain-connected), 3-pin through-hole configuration, 15.87 mm length, 10.10 mm width, and 4.70 mm height. The molded compound provides 2.5 kV_RMS isolation and replaces 100 µm mica barriers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP60NF06 and FQP30N06L, the IRLIZ14G trades off absolute current and R_DS(on) for built-in isolation, logic-level operation, and reduced system-level BOM - making it optimal for space- and safety-critical industrial power stages where board area and certification effort matter more than peak efficiency.

Availability

IRLIZ14G is available at Aetrix Electronics and suitable for industrial motor drives, DC-DC converter primary switches, and AC solid-state relays requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for IRLIZ14G 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 IRLIZ14G belongs to Vishay's logic-level isolated MOSFET product line, engineered specifically for commercial-industrial power conversion where simplified thermal design, reinforced insulation, and direct microcontroller interfacing are required.

FAQ

What is the maximum continuous drain current for IRLIZ14G at 100 °C case temperature?

The IRLIZ14G supports 5.7 A continuous drain current at T_C = 100 °C, as specified in its Absolute Maximum Ratings table. This derating reflects thermal limitations of the TO-220 FULLPAK package and must be applied in thermally constrained environments such as enclosed enclosures or stacked PCB assemblies. Designers should verify junction temperature using R_thJC = 5.5 °C/W and ambient conditions.

Does IRLIZ14G require an external gate resistor for typical 5 V MCU drive?

Yes - while the IRLIZ14G is logic-level compatible, a gate resistor (typically 10–25 Ω) is recommended to dampen ringing and control dI/dt during switching. The datasheet specifies switching times (e.g., t_r = 110 ns) with R_G = 12 Ω, confirming that direct MCU GPIO connection without series resistance risks oscillation and EMI. The IRLIZ14G's Q_g = 8.4 nC makes it responsive to standard push-pull drivers.

Can IRLIZ14G replace a standard TO-220 MOSFET without PCB layout changes?

No - the IRLIZ14G uses TO-220 FULLPAK packaging with an isolated tab and dual-source leads, differing mechanically and electrically from standard TO-220. Its tab is drain-connected and insulated, whereas standard TO-220 tabs are typically source-connected and uninsulated. Mounting holes, creepage clearances, and thermal pad routing must be verified; direct substitution without layout review violates safety and thermal specifications.

What is the body diode reverse recovery charge (Q_rr) of IRLIZ14G, and why does it matter?

The IRLIZ14G body diode exhibits Q_rr = 0.33–0.65 μC at T_J = 25 °C, IF = 10 A, and dI/dt = 100 A/μs. This parameter directly impacts switching loss and EMI in hard-commutated topologies like synchronous buck or active clamp forward converters. Lower Q_rr reduces tail current and associated heat generation - a key advantage of the IRLIZ14G over older planar MOSFETs in high-frequency power stages.

Is IRLIZ14G compliant with RoHS and lead-free soldering standards?

Yes - the ordering variant IRLIZ14GPbF is explicitly designated as lead (Pb)-free in Vishay's Ordering Information table. It complies with RoHS Directive 2011/65/EU and supports peak soldering temperatures up to 300 °C for 10 seconds, as confirmed in the Absolute Maximum Ratings section. The "PbF" suffix denotes full lead-free qualification including finish, mold compound, and internal interconnects.