STMicroelectronics STP270N04

Overview

STP270N04 from STMicroelectronics is an N-channel enhancement-mode Power MOSFET in TO-220 package, rated for 40 V drain-source voltage, <2.9 mΩ R_DS(on) at V_GS = 10 V and 80 A, 120 A continuous drain current at T_C = 25°C, and 330 W total power dissipation - designed for high-current DC-DC converter primary switches and motor drive half-bridges.

For engineers reviewing the STP270N04 datasheet, STP270N04 pinout, STP270N04 application, or STP270N04 equivalent, key selection criteria include avalanche ruggedness (1 J single-pulse E_AS), low gate charge (110 nC total), thermal resistance (0.45 °C/W j-case), and 100% avalanche-tested reliability for automotive and industrial switching systems.

Technical Context

This MOSFET employs ST's "Single Feature Size™" strip-based process to achieve high cell density and consistent parametric performance across production lots. Its design emphasizes low conduction loss and fast switching via minimized C_iss (7400 pF), C_oss (1800 pF), and Q_gd (25 nC), enabling efficient operation in hard-switched topologies up to 100 kHz.

The device integrates a robust body diode with 120 A continuous source-drain current capability, 70 ns reverse recovery time (T_j = 150°C), and 3.2 A peak reverse recovery current - critical for synchronous rectification and freewheeling in inductive loads without external diode supplementation.

Key Specifications

Pinout & Package

STP270N04 uses a 3-pin TO-220 package with standard lead configuration: Pin 1 (Gate), Pin 2 (Drain), Pin 3 (Source). The drain tab is electrically connected to Pin 2 and serves as the primary thermal path.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRF1404 and IXTH120N04S, STP270N04 delivers optimal balance of ruggedness, thermal performance, and TO-220 compatibility - making it ideal for space-constrained, high-reliability 40 V switching applications where verified avalanche immunity is mandatory.

Availability

STP270N04 is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial motor drives, and server power supplies requiring stable component supply and long-term lifecycle support.

Supply support for STP270N04 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power management, automotive ICs, and discrete devices with vertical manufacturing capabilities.

The STripFET™ Power MOSFET product line targets high-efficiency, high-reliability switching applications in automotive, industrial, and computing systems - emphasizing ruggedness, low R_DS(on), and manufacturability across voltage classes.

FAQ

Is STP270N04 suitable for 3.3 V microcontroller gate drive?

No - STP270N04 has a gate threshold voltage range of 2–4 V and requires ≥10 V V_GS to achieve its specified <2.9 mΩ R_DS(on). Driving directly from a 3.3 V GPIO will result in high conduction loss and thermal runaway. A dedicated gate driver or level shifter is mandatory for full performance.

What is the maximum safe operating frequency for STP270N04 in hard-switched applications?

Based on its 22 ns turn-on delay, 180 ns rise time, 110 ns turn-off delay, and 45 ns fall time (with 4.7 Ω gate resistor), STP270N04 supports reliable operation up to 100–150 kHz in hard-switched topologies. Higher frequencies require optimized gate drive strength and PCB layout to manage switching losses.

Does STP270N04 have a built-in ESD protection diode on the gate?

No - STP270N04 does not integrate gate ESD protection. Its gate oxide is rated for ±20 V absolute maximum V_GS, and exposure to static discharge above this level can cause permanent damage. External gate protection (e.g., 12 V Zener clamp) is strongly recommended in assembly and handling.

Can STP270N04 replace STB270N04 in existing designs?

Yes - STP270N04 shares identical electrical specifications (40 V, <2.9 mΩ, 120 A, 330 W) and thermal characteristics with STB270N04, differing only in package (TO-220 vs D²PAK). Mechanical redesign is required for PCB footprint and heatsinking, but no circuit revalidation is needed for electrical performance.