STMicroelectronics STFI13NK60Z

Overview

STFI13NK60Z from STMicroelectronics is an N-channel 600 V, 0.48 Ω (typ), 13 A SuperMESH™ Power MOSFET in I²PAKFP (TO-281) package with integrated gate-source Zener protection. It delivers high dv/dt immunity (4.5 V/ns), low gate charge (66 nC), and 2500 V RMS insulation withstand voltage. Used in offline SMPS, PFC stages, and industrial motor drives where ruggedness and transient immunity are critical.

For engineers reviewing the STFI13NK60Z datasheet, STFI13NK60Z pinout, STFI13NK60Z application, or STFI13NK60Z equivalent, key selection factors include its 600 V V_DS, 0.48 Ω R_DS(on) at 10 V_GS, 35 W power dissipation, built-in Zener-protected gate, and I²PAKFP thermal performance with R_thj-case = 3.6 °C/W.

Technical Context

This device employs ST's SuperMESH™ strip-based layout to minimize on-resistance while maintaining high avalanche robustness (E_AS = 400 mJ) and fast switching (t_d(off) = 61 ns, t_f = 12 ns). Its Zener-protected gate (V_(BR)GSO = 30 V) eliminates external clamping components and enhances ESD tolerance (4 kV HBM).

The I²PAKFP package provides full electrical insulation between leads and heatsink plate, enabling direct mounting without isolation washers. Its creepage path and 2500 V RMS isolation rating support reinforced insulation in AC/DC converters meeting IEC 62368-1 requirements.

Key Specifications

Pinout & Package

The STFI13NK60Z uses the I²PAKFP (TO-281) package: insulated, low-profile, with integral heatsink plate and extended creepage distance. Leads are fully isolated from the heatsink plate, enabling direct PCB-mount heatsinking without insulating pads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage power MOSFET applications.

Compared with STP13NK60Z and FQP13N60C, the STFI13NK60Z uniquely combines gate Zener protection, reinforced insulation, and SuperMESH™ efficiency-making it optimal for space-constrained, safety-certified AC/DC and PFC designs where reliability under transient stress is non-negotiable.

Availability

STFI13NK60Z is available at Aetrix Electronics and suitable for AC/DC power supplies, industrial motor drives, and uninterruptible power supplies requiring stable component supply and long-term lifecycle support.

Supply support for STFI13NK60Z 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The SuperMESH™ Power MOSFET product line targets high-efficiency, high-reliability switching applications in offline power conversion-emphasizing ruggedness, low conduction loss, and integrated protection features.

FAQ

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

The STFI13NK60Z supports 8.2 A continuous drain current at T_C = 100 °C, as specified in Table 2 of the datasheet. This derating reflects thermal limits of the I²PAKFP package with R_thj-case = 3.6 °C/W and maximum T_j = 150 °C. Designers must ensure heatsink design maintains T_C ≤ 100 °C for sustained 8.2 A operation.

Does the STFI13NK60Z require an external gate resistor for safe operation?

Yes-a gate resistor is required to control switching speed and suppress oscillation. The datasheet specifies test conditions using R_G = 4.7 Ω for switching time measurements. Typical values range from 4.7 Ω to 22 Ω depending on EMI constraints and drive strength; lower values increase dv/dt stress, higher values slow switching and raise losses.

Can the STFI13NK60Z replace the STP13NK60Z in existing designs?

Electrically yes, but mechanically no-STFI13NK60Z uses I²PAKFP (TO-281) with insulated heatsink plate, while STP13NK60Z uses TO-220FP with conductive drain tab. Direct replacement requires PCB layout revision to accommodate different footprint, lead spacing, and thermal mounting method. Isolation benefits are not backward-compatible.

What is the significance of the "Z" suffix in STFI13NK60Z?

The "Z" denotes Zener-protected gate structure: integrated back-to-back Zener diodes between gate and source provide ±30 V breakdown protection. This feature eliminates external gate clamps, improves ESD robustness (4 kV HBM), and prevents gate oxide damage during voltage transients-critical in high-noise industrial and offline power environments.