Toshiba Semiconductor and Storage TK8Q60W,S1VQ

Overview

TK8Q60W,S1VQ from Toshiba is a silicon N-channel MOSFET using DTMOS™ Super Junction technology, designed as a high-voltage switching element in offline power supplies. It delivers 600 V V_DSS, 8.0 A continuous drain current, and low R_DS(ON) of 0.42 Ω (typ.) at V_GS = 10 V, enabling efficient operation in AC-DC adapters and industrial SMPS.

For engineers reviewing the TK8Q60W,S1VQ datasheet, TK8Q60W,S1VQ pinout, TK8Q60W,S1VQ application, or TK8Q60W,S1VQ equivalent, key selection criteria include its 600 V rating, IPAK package thermal performance (R_th(ch-c) = 1.57 °C/W), avalanche ruggedness (E_AS = 105 mJ), and gate threshold compatibility with standard 3.3/5 V controllers.

Technical Context

The TK8Q60W,S1VQ employs Toshiba's DTMOS™ IV process to achieve low conduction loss while maintaining fast switching via optimized gate charge (Q_g = 18.5 nC typ.). Its enhancement-mode operation (V_th = 2.7–3.7 V) ensures reliable turn-on with common PWM ICs.

Designed for hard-switched topologies, it features robust dv/dt immunity (≥50 V/ns), integrated body diode with t_rr = 230 ns (typ.), and guaranteed single-pulse avalanche capability up to 105 mJ - critical for flyback and LLC resonant converter primary-side switching.

Key Specifications

Pinout & Package

TK8Q60W,S1VQ is housed in an IPAK (TOSHIBA 2-7L1A) surface-mount package with exposed drain tab for thermal conduction. The three-terminal configuration integrates mechanical robustness and thermal efficiency for high-power density board layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP8NK60ZFP and FQP8N60C, the TK8Q60W,S1VQ offers superior thermal resistance (1.57 °C/W vs. >3.0 °C/W), higher avalanche energy (105 mJ vs. unspecified or ≤60 mJ), and tighter V_th tolerance - making it optimal for compact, high-reliability offline power stages where board space and ruggedness are critical.

Availability

TK8Q60W,S1VQ is available at Aetrix Electronics and suitable for AC-DC adapters, industrial SMPS, and LED driver power stages requiring stable component supply across multi-year production cycles.

Supply support for TK8Q60W,S1VQ 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 global manufacturing and quality certification to ISO 9001 and IATF 16949.

The TK8Q60W,S1VQ belongs to Toshiba's DTMOS™ IV high-voltage MOSFET product line, engineered specifically for high-efficiency, high-reliability offline switching power supplies operating up to 100 W.

FAQ

What is the maximum continuous drain current for TK8Q60W,S1VQ at 100°C case temperature?

The TK8Q60W,S1VQ supports 8.0 A DC drain current at T_c = 25°C. At T_c = 100°C, derating applies per the Safe Operating Area curve (Fig. 8.17); the practical continuous current drops to approximately 4.5 A due to thermal constraints and R_DS(ON) increase. Always verify junction temperature using R_th(ch-c) = 1.57 °C/W and actual power dissipation in the final layout.

Does TK8Q60W,S1VQ have a fully rated avalanche capability?

Yes, the TK8Q60W,S1VQ is fully specified for single-pulse avalanche energy: E_AS = 105 mJ (guaranteed maximum) at T_ch = 25°C, V_DD = 90 V, L = 46.0 mH, R_G = 25 Ω, and I_AR = 2.0 A. This rating is validated per JEDEC JESD24-11 and enables robust operation in unclamped inductive switching without external protection components.

Can TK8Q60W,S1VQ be driven directly by a 3.3 V microcontroller GPIO?

No - the TK8Q60W,S1VQ has V_th = 2.7–3.7 V and requires ≥10 V gate drive for full enhancement (R_DS(ON) = 0.42 Ω typ.). A 3.3 V GPIO cannot reliably turn it on; a gate driver (e.g., TC4420) or level-shifting circuit is required to deliver 10–15 V to the gate of TK8Q60W,S1VQ in production designs.

What is the thermal resistance from channel to ambient (R_th(ch-a)) for TK8Q60W,S1VQ in standard PCB layout?

The datasheet specifies R_th(ch-a) = 125 °C/W (max) for TK8Q60W,S1VQ under standard JEDEC test conditions (single-layer 1 in² copper pad). In real-world 2-layer PCBs with 2 oz copper and thermal vias under the drain tab, measured values typically fall between 45–65 °C/W - but design margins must rely on the guaranteed 125 °C/W worst-case value unless validated by thermal simulation or testing.

Is TK8Q60W,S1VQ RoHS compliant and lead-free?

Yes, TK8Q60W,S1VQ is RoHS compliant and lead-free per EU Directive 2011/65/EU and Toshiba's environmental policy. The device carries the "EU RoHS Compliant" marking on its package and meets JEDEC J-STD-609A Class 3 moisture sensitivity level (MSL-3) requirements. Full compliance documentation is available upon request from Aetrix Electronics.