Toshiba Semiconductor and Storage TK10A60W,S4VX

Overview

TK10A60W from Toshiba is a silicon N-channel super-junction MOSFET designed for high-voltage switching in offline AC-DC power supplies and DC-DC converters. It delivers 600 V V_DSS, 9.7 A continuous drain current, and a typical R_DS(ON) of 0.327 Ω at V_GS = 10 V, enabling efficient operation in 85–265 VAC input SMPS designs.

For engineers reviewing the TK10A60W datasheet, TK10A60W pinout, TK10A60W application, or TK10A60W equivalent, this device is evaluated for high-efficiency flyback and PFC stage switching where low conduction loss, avalanche ruggedness (E_AS = 134 mJ), and gate-drive simplicity are critical selection criteria.

Technical Context

This MOSFET employs Toshiba's DTMOS™ IV super-junction structure to achieve low R_DS(ON) while maintaining fast switching and robust dv/dt immunity (≥50 V/ns). Its enhancement-mode threshold voltage (V_th = 2.7–3.7 V) ensures reliable turn-on with standard 5 V or 10 V gate drivers.

Thermal design is supported by a channel-to-case thermal resistance of 4.17 °C/W and a maximum channel temperature rating of 150 °C. The integrated body diode exhibits t_rr = 250 ns and Q_rr = 2.2 µC under specified conditions, suitable for quasi-resonant and hard-switched topologies requiring controlled reverse recovery.

Key Specifications

Pinout & Package

TK10A60W is housed in a TO-220SIS (JEITA SC-67) package with isolated tab, offering creepage/clearance compliance for reinforced insulation in Class II systems. The package weighs 1.7 g and features a channel-to-case thermal resistance of 4.17 °C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP10NK60ZFP and IPP60R041C6, the TK10A60W uniquely combines 600 V rating, isolated TO-220SIS packaging, and super-junction performance-making it optimal for compact, safety-certified offline power supplies where board space, isolation integrity, and thermal management are jointly constrained.

Availability

TK10A60W is available at Aetrix Electronics and suitable for server power supplies, industrial AC-DC adapters, outdoor LED drivers, and medical power modules requiring stable component supply and long-term lifecycle support.

Supply support for TK10A60W 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

Toshiba Electronic Devices & Storage Corporation is a Japanese semiconductor manufacturer specializing in power devices, logic ICs, and memory solutions, with decades of expertise in high-reliability discrete components.

The TK10A60W belongs to Toshiba's DTMOS™ IV super-junction MOSFET product line, engineered specifically for high-efficiency, high-voltage switching in compact offline power conversion systems demanding low R_DS(ON), avalanche ruggedness, and reinforced insulation.

FAQ

What is the maximum continuous drain current rating for TK10A60W?

The TK10A60W has a maximum continuous drain current (I_D) of 9.7 A at T_c = 25°C. This rating assumes proper heatsinking and derating per the datasheet's thermal curves; actual usable current depends on PCB copper area, ambient temperature, and airflow. For sustained operation above 70°C case temperature, current must be reduced to maintain channel temperature ≤150°C.

Does TK10A60W have an isolated package, and what is its isolation voltage rating?

Yes, the TK10A60W uses the TO-220SIS package with electrically isolated drain tab. Its isolation voltage rating is 2000 V_RMS, verified per safety standards, enabling direct mounting to grounded heatsinks without insulating hardware-critical for Class II medical and industrial power supplies complying with IEC 60601-1 or IEC 62368-1.

What is the typical gate threshold voltage (V_th) range for TK10A60W, and how does it affect gate drive design?

The TK10A60W has a gate threshold voltage range of 2.7 V to 3.7 V (V_DS = 10 V, I_D = 0.5 mA). This enhancement-mode range ensures reliable turn-on with standard 5 V logic-level drivers and compatibility with 3.3 V microcontrollers when used with gate buffers. Designers should ensure V_GS ≥ 10 V for full R_DS(ON) specification and avoid marginal bias near V_th to prevent linear-mode heating.

Can TK10A60W be used in avalanche mode, and what is its rated single-pulse avalanche energy?

Yes, the TK10A60W is fully rated for single-pulse avalanche operation with E_AS = 134 mJ (T_ch = 25°C, V_DD = 90 V, L = 37.6 mH, R_G = 25 Ω, I_AR = 2.5 A). This specification allows safe operation during inductive turn-off transients in flyback and resonant converters without external snubbers-provided pulse repetition is limited and thermal limits are observed.

What are the key thermal parameters of TK10A60W, and how do they impact heatsink selection?

The TK10A60W has R_th(ch-c) = 4.17 °C/W and R_th(ch-a) = 62.5 °C/W. The low channel-to-case resistance means heatsink performance dominates thermal design; a typical 10°C/W aluminum heatsink with thermal interface material yields ~45°C/W total path, allowing ~5 W dissipation at ΔT = 225°C (150°C – 25°C). Always verify steady-state channel temperature using the SOA curve and derate above 25°C ambient.