STMicroelectronics STB13NK60ZT4

Overview

STB13NK60ZT4 from STMicroelectronics is a Zener-protected N-channel SuperMESH Power MOSFET rated for 600 V drain-source voltage, 0.55 Ω maximum R_DS(on) at V_GS = 10 V and I_D = 4.5 A, and 13 A continuous drain current at T_C = 25 °C. It features 100% avalanche testing, 4.5 V/ns peak diode recovery dv/dt capability, and 66 nC typical total gate charge. It is used in high-reliability AC-DC power supplies and offline SMPS primary-side switching stages.

For engineers reviewing the STB13NK60ZT4 datasheet, STB13NK60ZT4 pinout, STB13NK60ZT4 application, or STB13NK60ZT4 equivalent, key selection criteria include its 600 V blocking rating, low 0.48 Ω typical on-resistance, 100% tested avalanche ruggedness, TO-263 (D²PAK) package thermal resistance of 0.83 °C/W junction-to-case, and Zener-protected gate for ESD robustness.

Technical Context

This device implements ST's SuperMESH technology - an optimized evolution of PowerMESH - delivering reduced R_DS(on) while maintaining high dv/dt immunity and fast switching performance. Its 4.5 V/ns diode recovery dv/dt rating and 400 mJ single-pulse avalanche energy support operation in hard-switched, high-voltage inductive load circuits without external snubbers.

The MOSFET integrates a monolithic Zener diode between gate and source to clamp transient overvoltage, eliminating need for external gate protection. Its 2030 pF input capacitance and 48 pF reverse transfer capacitance enable predictable turn-on/turn-off timing with standard 4.7 Ω gate resistors under 480 V bus conditions.

Key Specifications

Pinout & Package

STB13NK60ZT4 is housed in a D²PAK (TO-263) surface-mount package with exposed drain tab for thermal and electrical connection. The package has three leads: Gate (G), Drain (D), Source (S), with Drain electrically connected to the metal tab.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP13NK60Z, STB13NK60ZT4 delivers 4.3× better thermal resistance for surface-mount scalability; compared with FDPF13N60NZ, it provides guaranteed gate protection and 6% lower typical conduction loss - critical for thermally constrained, high-reliability designs.

Availability

STB13NK60ZT4 is available at Aetrix Electronics and suitable for AC-DC adapters, industrial SMPS, LED street lighting, and UPS inverter stages requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for STB13NK60ZT4 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.

This MOSFET belongs to ST's SuperMESH Power MOSFET product line, engineered specifically for high-efficiency, high-reliability offline power conversion where avalanche ruggedness, dv/dt immunity, and Zener gate protection are mandatory.

FAQ

What is the maximum safe operating temperature for STB13NK60ZT4?

The device has a specified operating junction temperature range of −55 °C to 150 °C. Maximum continuous case temperature is limited by thermal design: with R_thJC = 0.83 °C/W and 150 W power dissipation, case temperature must remain ≤25 °C to keep T_J ≤150 °C. Derating curves in Figure 1 of DS2636 define safe current limits above 25 °C case temperature.

Does STB13NK60ZT4 require external gate protection?

No. STB13NK60ZT4 integrates a monolithic Zener diode between gate and source, rated for ±30 V V_GS and tested to 4 kV HBM ESD. This eliminates need for external gate clamping components in most applications, though a small series resistor (≤10 Ω) is still recommended for ringing suppression and drive stability.

How does STB13NK60ZT4 compare to standard 600 V MOSFETs in avalanche performance?

Unlike standard 600 V MOSFETs, STB13NK60ZT4 undergoes 100% production avalanche testing at 10 A and guarantees 400 mJ single-pulse energy. Standard parts typically specify only "ruggedness" or "unlimited" avalanche capability without test validation - making STB13NK60ZT4 suitable for unclamped inductive switching in UPS and motor control where failure modes must be eliminated.

Can STB13NK60ZT4 be used in synchronous rectification topologies?

No. STB13NK60ZT4 is an N-channel enhancement-mode MOSFET optimized for high-side switching, not synchronous rectification. Its body diode recovery time (t_rr = 570 ns) and Q_rr (4.5 µC) are not optimized for low-loss freewheeling; dedicated synchronous rectifier MOSFETs feature faster diodes, lower Q_rr, and logic-level gate thresholds for self-driven operation.