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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Toshiba Semiconductor and Storage TK7A60W,S4VX

Name: TK7A60W,S4VX
Brand: Toshiba Semiconductor and Storage
SKU: TK7A60W,S4VX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TK7A60W,S4VX

Manufacturer:: Toshiba Semiconductor and Storage

Category:: FETs, MOSFETs

Package:: TO-220-3 Full Pack

Datasheet:: TK7A60W,S4VX.pdf

Description:: MOSFET N-CH 600V 7A TO220SIS

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Product details

Overview

TK7A60W,S4VX from Toshiba is a silicon N-channel MOSFET using Super Junction DTMOS™ structure, designed for high-voltage switching in offline AC-DC power supplies and DC-DC converters. It delivers 600 V V_DSS, 7.0 A continuous drain current (T_C = 25 °C), and typ. R_DS(ON) = 0.5 Ω at V_GS = 10 V - enabling efficient operation in 65–100 W SMPS designs.

For engineers reviewing the TK7A60W,S4VX datasheet, TK7A60W,S4VX pinout, TK7A60W,S4VX application, or TK7A60W,S4VX equivalent, this device is evaluated for high-voltage flyback and PFC stage use where low conduction loss, avalanche ruggedness (E_AS = 92 mJ), and gate-drive simplicity are critical selection criteria.

Technical Context

This MOSFET employs Toshiba's DTMOS™ IV process with optimized super junction cell design to achieve low R_DS(ON) × Q_g figure-of-merit (typ. 15 nC total gate charge). Its enhancement-mode threshold voltage (2.7–3.7 V) ensures reliable turn-on with standard 5 V or 10 V gate drivers.

Thermal performance is defined by R_th(ch-c) = 4.17 °C/W and channel temperature limit of 150 °C. The TO-220SIS package provides internal source-isolation (2000 V_RMS isolation voltage), enabling direct mounting on heatsinks without insulating pads in isolated topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	600 V - supports universal-input (85–265 V_AC) offline SMPS with sufficient margin against reflected transients.
R_DS(ON) (typ.)	0.5 Ω at V_GS = 10 V - reduces conduction loss in 7 A continuous applications, e.g., 65 W adapter primary switch.
I_D (DC)	7.0 A at T_C = 25 °C - defines maximum steady-state current before thermal derating; usable up to ~4.5 A at T_C = 100 °C.
E_AS	92 mJ - enables robust single-pulse avalanche capability during overvoltage events without external clamping in flyback designs.
C_iss	490 pF at V_DS = 300 V - impacts gate drive power and switching speed; compatible with standard 1–2 W gate drivers.
V_th	2.7–3.7 V - ensures clean turn-on with TTL/CMOS-compatible controllers and avoids spurious switching near ground.
Q_g	15 nC - determines gate driver current requirement (e.g., 1.5 A peak for 10 ns rise time); balances switching loss vs. drive complexity.

Pinout & Package

TO-220SIS (JEITA SC-67 / Toshiba 2-10U1S) package with internal source-isolation barrier rated at 2000 V_RMS. Mounting torque: 0.6 N·m. Weight: 1.7 g (typ.).

Pin/Terminal	Circuit Role	Design Meaning
1: Gate	Control terminal	Receives gate drive signal; requires <1 µA leakage (IGSS ≤ ±1 µA) and ESD-safe handling due to MOSFET sensitivity.
2: Drain	High-side power terminal	Connected to primary winding/high-voltage rail; withstands 600 V blocking and handles avalanche energy up to 92 mJ.
3: Source	Reference terminal	Internally isolated from case; serves as return path for ID and gate drive reference - eliminates need for insulating hardware in isolated converters.

Key Features

Feature	Design Value
Super Junction DTMOS™ structure	Enables 0.5 Ω R_DS(ON) at 600 V rating - improves efficiency over planar MOSFETs in same package without sacrificing voltage capability.
Source-isolated TO-220SIS package	Provides 2000 V_RMS isolation between source and heatsink - simplifies mechanical design and reduces BOM count in isolated topologies.
Low Q_gd/Q_g ratio (8.0/15 nC)	Reduces Miller effect and improves hard-switching robustness - supports stable operation in discontinuous conduction mode (DCM) flyback.
Guaranteed avalanche energy (E_AS)	92 mJ at T_ch = 25 °C - allows safe operation under transient overvoltage without external snubbers in cost-sensitive consumer power supplies.
Enhancement-mode V_th	2.7–3.7 V range - ensures predictable turn-on with standard PWM ICs (e.g., UC384x, VIPer series) and avoids false triggering.

Applications

AC-DC Adapter Primary Switch	LED Driver Flyback Stage
Use Scenario: 65 W universal-input offline adapter for laptops and monitors operating in DCM flyback topology. IC Role / Device Role / Timing Role: Main high-side switching element synchronized to controller PWM; handles 600 V blocking and 7 A peak currents. Use Value: Low R_DS(ON) reduces conduction loss by ~15% vs. comparable 0.65 Ω MOSFETs, improving full-load efficiency to >88%.	Use Scenario: Constant-voltage LED driver powering commercial downlights (24–48 V output, 1–2 A). IC Role / Device Role / Timing Role: Primary-side power switch in isolated flyback; operates at 65–100 kHz with zero-voltage switching assistance. Use Value: Source-isolation eliminates need for thermal pad + insulator, reducing assembly cost and thermal resistance by ~1.2 °C/W.
PFC Boost Switch	Industrial SMPS Input Stage
Use Scenario: 110 W active PFC front-end in industrial power supply meeting IEC 61000-3-2 Class C. IC Role / Device Role / Timing Role: Fast-switching boost switch operating in continuous conduction mode (CCM) at 65 kHz. Use Value: Low C_iss (490 pF) and Q_g (15 nC) minimize gate drive loss and enable >95% PFC efficiency at 230 V_AC.	Use Scenario: 100 W open-frame power supply for factory automation controllers requiring long-term reliability. IC Role / Device Role / Timing Role: Primary-side switching transistor in dual-switch forward converter with synchronous rectification. Use Value: Guaranteed E_AS (92 mJ) and 150 °C T_ch rating support operation under brownout and surge conditions per IEC 61000-4-5.

AC-DC Adapter Primary Switch

LED Driver Flyback Stage

Use Scenario: 65 W universal-input offline adapter for laptops and monitors operating in DCM flyback topology.

IC Role / Device Role / Timing Role: Main high-side switching element synchronized to controller PWM; handles 600 V blocking and 7 A peak currents.

Use Value: Low R_DS(ON) reduces conduction loss by ~15% vs. comparable 0.65 Ω MOSFETs, improving full-load efficiency to >88%.

Use Scenario: Constant-voltage LED driver powering commercial downlights (24–48 V output, 1–2 A).

IC Role / Device Role / Timing Role: Primary-side power switch in isolated flyback; operates at 65–100 kHz with zero-voltage switching assistance.

Use Value: Source-isolation eliminates need for thermal pad + insulator, reducing assembly cost and thermal resistance by ~1.2 °C/W.

PFC Boost Switch

Industrial SMPS Input Stage

Use Scenario: 110 W active PFC front-end in industrial power supply meeting IEC 61000-3-2 Class C.

IC Role / Device Role / Timing Role: Fast-switching boost switch operating in continuous conduction mode (CCM) at 65 kHz.

Use Value: Low C_iss (490 pF) and Q_g (15 nC) minimize gate drive loss and enable >95% PFC efficiency at 230 V_AC.

Use Scenario: 100 W open-frame power supply for factory automation controllers requiring long-term reliability.

IC Role / Device Role / Timing Role: Primary-side switching transistor in dual-switch forward converter with synchronous rectification.

Use Value: Guaranteed E_AS (92 mJ) and 150 °C T_ch rating support operation under brownout and surge conditions per IEC 61000-4-5.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP7NK60ZFP	R_DS(ON) = 0.75 Ω (typ.), TO-220FP package without source isolation, E_AS = 60 mJ.	Lacks internal source-isolation; requires external insulator for heatsink mounting in isolated topologies.	Lower cost alternative where isolation is implemented externally and higher R_DS(ON) is acceptable.
FQP6N60C	R_DS(ON) = 0.7 Ω (typ.), TO-220 package (non-isolated), Q_g = 18 nC, no guaranteed E_AS spec.	No isolation rating or specified avalanche capability - unsuitable for unclamped inductive switching.	Suitable only in non-isolated or clamped topologies with conservative voltage derating.

Compared with STP7NK60ZFP and FQP6N60C, the TK7A60W,S4VX offers lower conduction loss, certified source-isolation, and guaranteed avalanche ruggedness - making it preferred for compact, isolated, and reliability-critical 60–100 W power supplies where layout space and thermal management are constrained.

Availability

TK7A60W,S4VX is available at Aetrix Electronics and suitable for AC-DC adapters, LED drivers, and industrial SMPS requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.

Supply support for TK7A60W,S4VX 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-voltage MOSFET technology.

The TK7A60W,S4VX belongs to Toshiba's DTMOS™ IV super junction MOSFET product line, engineered specifically for high-efficiency, high-reliability offline power conversion in consumer and industrial applications.

FAQ

What is the maximum continuous drain current rating for TK7A60W,S4VX?

The TK7A60W,S4VX has a maximum continuous drain current (I_D) of 7.0 A at case temperature T_C = 25 °C. This rating decreases with rising case temperature - for example, it drops to approximately 4.5 A at T_C = 100 °C - and must be applied with proper heatsinking and thermal derating per the datasheet's Safe Operating Area curves.

Does TK7A60W,S4VX require an insulating pad when mounted to a heatsink?

No, the TK7A60W,S4VX uses a TO-220SIS package with internal source-isolation rated at 2000 V_RMS. This eliminates the need for external insulating pads or shoulder washers when mounting directly to a grounded heatsink - a key advantage in isolated flyback and PFC designs where creepage/clearance and thermal resistance are critical.

What is the typical gate threshold voltage (V_th) range for TK7A60W,S4VX?

The TK7A60W,S4VX has a guaranteed gate threshold voltage range of 2.7 V to 3.7 V (measured at V_DS = 10 V, I_D = 0.35 mA). This enhancement-mode specification ensures reliable turn-on with standard 5 V logic-level gate drivers and avoids unintended conduction near 0 V, supporting stable operation in noisy industrial environments.

Is TK7A60W,S4VX suitable for avalanche-prone circuits like flyback converters?

Yes, the TK7A60W,S4VX is fully characterized for single-pulse avalanche operation with a guaranteed E_AS of 92 mJ (T_ch = 25 °C). This makes it suitable for unclamped inductive switching in flyback topologies, reducing or eliminating the need for external RCD snubbers and improving system reliability under transient overvoltage conditions.

What package type does TK7A60W,S4VX use, and what are its key mechanical identifiers?

The TK7A60W,S4VX uses the TO-220SIS package (JEITA SC-67 / Toshiba 2-10U1S), identifiable by three leads (Gate, Drain, Source), a metal tab with isolated source connection, and marking "TK7A60W" followed by date code and lot traceability. Its weight is 1.7 g (typ.), and recommended mounting torque is 0.6 N·m.

TK7A60W,S4VX Specifications

Product attributes: Attribute value

Manufacturer:: Toshiba Semiconductor and Storage

Series:: DTMOSIV

Package/Case:: TO-220-3 Full Pack

Packaging:: Tube

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 600 V

Current - Continuous Drain (Id) @ 25°C:: 7A (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 10V

Rds On (Max) @ Id, Vgs:: 600mOhm @ 3.5A, 10V

Vgs(th) (Max) @ Id:: 3.7V @ 350µA

Gate Charge (Qg) (Max) @ Vgs:: 15 nC @ 10 V

Vgs (Max):: ±30V

Input Capacitance (Ciss) (Max) @ Vds:: 490 pF @ 300 V

FET Feature:: -

Power Dissipation (Max):: 30W (Tc)

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220SIS

TK7A60W,S4VX FAQ

1.How can I place an order for TK7A60W,S4VX through Aetrix?

Please submit a Request for Quotation (RFQ) for TK7A60W,S4VX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TK7A60W,S4VX reliable?

The price and inventory of TK7A60W,S4VX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TK7A60W,S4VX is usually 5 days.

3.What payment methods are accepted for TK7A60W,S4VX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TK7A60W,S4VX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TK7A60W,S4VX?

TK7A60W,S4VX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TK7A60W,S4VX order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TK7A60W,S4VX?

For technical support, including TK7A60W,S4VX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TK7A60W,S4VX requirements.

6.How does Aetrix verify that TK7A60W,S4VX is sourced from the original manufacturer or authorized distributors?

All TK7A60W,S4VX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TK7A60W,S4VX meets industry standards.

7.What is the process for return or replacement of TK7A60W,S4VX?

All TK7A60W,S4VX units undergo pre-shipment inspection (PSI). If there is an issue with TK7A60W,S4VX, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TK7A60W,S4VX part is unused and in its original packaging.

Return procedure for TK7A60W,S4VX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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