STMicroelectronics STD5NM60T4

Overview

STD5NM60T4 from STMicroelectronics is an N-channel 600 V, 5 A Power MOSFET in DPAK (TO-252) package, featuring 0.9 Ω typical R_DS(on), 13 nC total gate charge, and 100% avalanche tested performance. It leverages MDmesh™ technology for low conduction loss, high dv/dt immunity (15 V/ns), and robust unclamped inductive switching capability-used in offline SMPS primary-side switches and AC-DC adapters.

For engineers reviewing the STD5NM60T4 datasheet, STD5NM60T4 pinout, STD5NM60T4 application, or STD5NM60T4 equivalent, key selection criteria include its 600 V breakdown voltage, 1.3 °C/W junction-to-case thermal resistance, 200 mJ single-pulse avalanche energy, and DPAK footprint compatibility with high-power density board layouts.

Technical Context

This device implements ST's MDmesh™ multi-drain process combined with PowerMESH™ horizontal layout to minimize specific on-resistance while maintaining high-voltage ruggedness. Its 15 V/ns dv/dt rating and 2.5 A repetitive avalanche current support reliable operation under fast-switching, inductive-load conditions without external snubbers.

The integrated body diode delivers 5 A continuous source-drain current with 300 ns reverse recovery time at 25 °C and 1.95 µC Q_rr, enabling efficient synchronous rectification and flyback converter freewheeling. Gate threshold voltage is tightly specified at 3–5 V (250 µA ID), ensuring stable turn-on across temperature.

Key Specifications

Pinout & Package

DPAK (TO-252) package: surface-mount, single-ended heat dissipation via exposed drain tab; compatible with standard FR-4 PCBs using 1 inch² 2 oz copper pad per JEDEC JESD51-7.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP5NK60ZFP and FDPF18N50FT, STD5NM60T4 uniquely balances 600 V rating, DPAK form factor, and 13 nC gate charge-making it optimal for compact, high-efficiency 230 VAC offline converters where thermal management relies on PCB copper rather than external heatsinks.

Availability

STD5NM60T4 is available at Aetrix Electronics and suitable for AC-DC adapters, industrial SMPS, LED drivers, and UPS inverters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STD5NM60T4 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.

STD5NM60T4 belongs to ST's MDmesh™ high-voltage Power MOSFET product line, engineered specifically for energy-efficient offline power conversion where high breakdown voltage, low R_DS(on), and rugged avalanche performance are mandatory.

FAQ

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

The STD5NM60T4 supports 3.1 A continuous drain current at T_C = 100 °C, as defined in Table 1 of DS1949 Rev 18. This derating reflects thermal limitations of the DPAK package's 1.3 °C/W R_thJC and ensures safe operation within SOA boundaries at elevated ambient temperatures.

Does this MOSFET include integrated gate protection?

No, STD5NM60T4 does not integrate Zener gate protection. Its gate-source voltage rating is ±30 V, and gate oxide integrity relies on external clamping-typically a 15 V TVS diode between G and S. This matches ST's standard MDmesh™ design philosophy prioritizing dynamic performance over built-in protection.

Can STD5NM60T4 replace STD3NK60T4 in existing designs?

Yes, with verification: both share identical DPAK package, 600 V rating, and gate threshold range, but STD5NM60T4 offers 5 A vs. 3 A ID and 0.9 Ω vs. 1.8 Ω R_DS(on). Layout and gate drive must be rechecked for increased di/dt and reduced conduction loss, especially in thermally constrained areas.

What is the recommended PCB footprint for thermal performance?

Per Figure 19 in DS1949 Rev 18, use a 1 inch² (25.4 mm × 25.4 mm) 2 oz copper pad connected to the drain tab, with ≥4 thermal vias (0.3 mm diameter, 0.8 mm pitch) to inner ground planes. This achieves the specified 1.3 °C/W R_thJC and prevents junction overheating above 125 °C at 96 W dissipation.