STMicroelectronics STP75NF68

Overview

STP75NF68 from STMicroelectronics is an N-channel enhancement-mode Power MOSFET in TO-220 package, rated for 68 V V_DS, 80 A continuous drain current at T_C = 25 °C, and 0.010 Ω typical R_DS(on) at V_GS = 10 V. It features 100% avalanche tested ruggedness, 13 V/ns dv/dt capability, and is optimized for high-efficiency DC-DC converters and motor control switching stages.

For engineers reviewing the STP75NF68 datasheet, STP75NF68 pinout, STP75NF68 application, or STP75NF68 equivalent, key selection criteria include its low gate charge (75 nC), fast switching times (td(on) = 17 ns, tf = 75 ns), thermal resistance (R_thj-case = 0.79 °C/W), and SOA-limited pulsed current handling (320 A).

Technical Context

This MOSFET employs ST's STripFET™ II process to minimize input capacitance (C_iss = 2550 pF) and gate charge, enabling high-frequency operation with reduced drive losses. Its internal structure supports unclamped inductive switching with 700 mJ single-pulse avalanche energy rating at T_J = 25 °C.

The device integrates a robust body diode with 80 A continuous source-drain current capability, 1.5 V forward voltage at 80 A, and 70 ns reverse recovery time under specified conditions (di/dt = 100 A/µs, T_J = 150 °C), making it suitable for synchronous rectification and freewheeling roles.

Key Specifications

Pinout & Package

STP75NF68 uses a standard TO-220 package with three terminals: Drain (tab), Source (pin 1), and Gate (pin 2). The metal tab is electrically connected to the Drain and must be isolated from heatsink unless circuit topology permits common-drain configuration.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRF1404 and IPP60R099C6, STP75NF68 uniquely balances 68 V rating, ultra-low 0.010 Ω R_DS(on), and moderate 75 nC gate charge-making it optimal for high-current, medium-voltage switching where both efficiency and thermal management are critical.

Availability

STP75NF68 is available at Aetrix Electronics and suitable for DC-DC converters, motor drive half-bridges, and uninterruptible power supplies requiring stable component supply and proven ruggedness in high-di/dt environments.

Supply support for STP75NF68 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 analog, digital, and mixed-signal ICs, microcontrollers, power devices, and sensors for industrial, automotive, and consumer markets.

The STripFET™ Power MOSFET product line targets high-efficiency switching applications-including server PSUs, solar inverters, and motor drives-by optimizing R_DS(on), gate charge, and avalanche robustness in discrete silicon power devices.

FAQ

What is the maximum safe operating temperature for STP75NF68?

The absolute maximum junction temperature is 175 °C, and the storage temperature range is –55 °C to +175 °C. For reliable long-term operation, ST recommends limiting T_J to ≤150 °C under continuous load, based on thermal design using R_thj-case = 0.79 °C/W and measured case temperature.

Can STP75NF68 be used in parallel configurations?

Yes-its positive R_DS(on) temperature coefficient (R_DS(on) increases with temperature) promotes natural current sharing. Successful parallel operation requires matched gate drive layout, identical PCB trace lengths, and individual gate resistors (≥10 Ω) to suppress oscillation between devices.

Does STP75NF68 require a gate resistor, and what value is recommended?

Yes-a gate resistor is essential to dampen ringing and control dV/dt. For 10 V gate drive and typical 2 A peak driver capability, a 10–22 Ω series resistor is recommended. Lower values increase switching speed but risk overshoot; higher values reduce EMI but raise switching losses.

Is STP75NF68 lead-free and RoHS compliant?

Yes-STP75NF68 is supplied in an ECOPACK®-compliant TO-220 package with lead-free second-level interconnect, meeting RoHS Directive 2011/65/EU and JEDEC JESD97 marking requirements. The inner box label specifies lead-free status and soldering profile limits (T_l = 300 °C for 10 s at 1.6 mm from case).