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

Toshiba Semiconductor and Storage TK12A60W,S4VX

Name: TK12A60W,S4VX
Brand: Toshiba Semiconductor and Storage
SKU: TK12A60W,S4VX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TK12A60W,S4VX

Manufacturer:: Toshiba Semiconductor and Storage

Category:: FETs, MOSFETs

Package:: TO-220-3 Full Pack

Datasheet:: TK12A60W,S4VX.pdf

Description:: MOSFET N-CH 600V 11.5A TO220SIS

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Product details

Overview

TK12A60W,S4VX from Toshiba Electronic Devices & Storage Corporation is a silicon N-channel super-junction MOSFET (DTMOS™) designed for high-voltage switching in offline AC-DC power supplies and DC-DC converters. It features 600 V V_DSS, 11.5 A I_D (DC), R_DS(ON) = 0.265 Ω (typ.), and TO-220SIS package with isolated heatsink mounting - enabling efficient operation in 65–100 W SMPS designs.

For engineers reviewing the TK12A60W,S4VX datasheet, TK12A60W,S4VX pinout, TK12A60W,S4VX application, or TK12A60W,S4VX equivalent, key selection criteria include avalanche ruggedness (E_AS = 180 mJ), gate threshold voltage range (2.7–3.7 V), diode reverse recovery performance (t_rr = 250 ns), and thermal resistance (R_th(ch-c) = 3.57 °C/W).

Technical Context

This device implements Toshiba's DTMOS™ (Double-diffused Super Junction) structure to achieve low on-resistance while maintaining high breakdown voltage and fast switching. Its enhancement-mode gate enables direct drive from standard PWM controllers without level-shifting.

Designed for hard-switched topologies, it supports unclamped inductive switching with guaranteed single-pulse avalanche energy of 180 mJ at T_ch = 25 °C and exhibits MOSFET dv/dt ruggedness ≥50 V/ns - critical for noise-immune operation in compact flyback and forward converters.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	600 V - supports universal-input (85–265 VAC) offline SMPS without derating concerns
R_DS(ON)	0.265 Ω (typ.) - reduces conduction loss in 11.5 A continuous drain current applications
I_D (DC)	11.5 A - enables use in medium-power adapters and industrial power modules
E_AS	180 mJ - ensures robustness against inductive turn-off transients in flyback/forward circuits
t_rr	250 ns - minimizes body-diode recovery loss during synchronous rectification or freewheeling
R_th(ch-c)	3.57 °C/W - allows direct heatsink mounting for thermal management in sealed enclosures
Q_g	25 nC - balances gate drive strength and switching loss in 65–135 kHz operation

Pinout & Package

TK12A60W,S4VX is housed in a TO-220SIS (JEITA SC-67 / Toshiba 2-10U1S) package with internal isolation between drain and heatsink - enabling direct mounting to grounded metal chassis without insulating hardware.

Pin/Terminal	Circuit Role	Design Meaning
1	Gate	Control terminal requiring ≤±30 V gate-source voltage; threshold 2.7–3.7 V enables compatibility with 3.3 V/5 V logic-level drivers
2	Drain	Main high-side switching node connected to primary winding or bus rail; electrically isolated from heatsink surface
3	Source	Return path for load current and reference for gate drive; tied to power ground in non-isolated topologies

Key Features

Feature	Design Value
Super-junction DTMOS™ structure	Enables 600 V rating with 0.265 Ω R_DS(ON) - improves efficiency over planar MOSFETs in same package
Isolated heatsink mounting	TO-220SIS package provides 2000 V_RMS isolation between drain and heatsink - eliminates need for mica washers or thermal pads
Guaranteed avalanche capability	180 mJ single-pulse E_AS at T_ch = 25 °C - removes external snubbers in cost-sensitive flyback designs
Fast body diode recovery	t_rr = 250 ns and Q_rr = 2.3 µC - reduces switching loss when used in quasi-resonant or LLC secondary-side rectification

Applications

AC-DC Adapter Power Supply	Flyback Converter for LED Drivers
Use Scenario: 90–265 VAC input, 12 V/5 A output adapter for consumer electronics with <100 kHz switching frequency. IC Role / Device Role / Timing Role: Primary-side high-voltage switch controlling energy transfer via transformer primary winding. Use Value: Low R_DS(ON) and high V_DSS enable >88% efficiency at full load without active cooling.	Use Scenario: Isolated constant-current LED driver for commercial lighting operating at 65 kHz with primary-side regulation. IC Role / Device Role / Timing Role: Main switching element in discontinuous conduction mode (DCM) flyback topology. Use Value: Avalanche ruggedness eliminates need for clamping circuits, reducing BOM count and board area.
Industrial DC-DC Converter	Offline Switching Regulator for Smart Meters
Use Scenario: 24 VDC input to 5 V/3 A isolated output converter in factory automation equipment with wide ambient temperature range. IC Role / Device Role / Timing Role: High-side switch in forward converter with synchronous rectification on secondary side. Use Value: 150 °C channel temperature rating and low thermal resistance support reliable operation at 70 °C ambient without derating.	Use Scenario: Single-phase electricity meter with integrated power supply deriving bias from live/neutral lines. IC Role / Device Role / Timing Role: Primary switch in auxiliary flyback supply powering metrology IC and RF module. Use Value: RoHS-compliant marking and guaranteed isolation voltage ensure compliance with IEC 62053-21 safety requirements.

AC-DC Adapter Power Supply

Flyback Converter for LED Drivers

Use Scenario: 90–265 VAC input, 12 V/5 A output adapter for consumer electronics with <100 kHz switching frequency.

IC Role / Device Role / Timing Role: Primary-side high-voltage switch controlling energy transfer via transformer primary winding.

Use Value: Low R_DS(ON) and high V_DSS enable >88% efficiency at full load without active cooling.

Use Scenario: Isolated constant-current LED driver for commercial lighting operating at 65 kHz with primary-side regulation.

IC Role / Device Role / Timing Role: Main switching element in discontinuous conduction mode (DCM) flyback topology.

Use Value: Avalanche ruggedness eliminates need for clamping circuits, reducing BOM count and board area.

Industrial DC-DC Converter

Offline Switching Regulator for Smart Meters

Use Scenario: 24 VDC input to 5 V/3 A isolated output converter in factory automation equipment with wide ambient temperature range.

IC Role / Device Role / Timing Role: High-side switch in forward converter with synchronous rectification on secondary side.

Use Value: 150 °C channel temperature rating and low thermal resistance support reliable operation at 70 °C ambient without derating.

Use Scenario: Single-phase electricity meter with integrated power supply deriving bias from live/neutral lines.

IC Role / Device Role / Timing Role: Primary switch in auxiliary flyback supply powering metrology IC and RF module.

Use Value: RoHS-compliant marking and guaranteed isolation voltage ensure compliance with IEC 62053-21 safety requirements.

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
STP12NK60ZFP	600 V V_DSS, 12 A I_D, R_DS(ON) = 0.38 Ω (typ.), TO-220FP package without drain-to-heatsink isolation	Requires insulated mounting hardware; lower avalanche rating (E_AS = 125 mJ)	Choose when cost sensitivity outweighs isolation requirement and thermal design accommodates higher R_DS(ON)
IXTP12N60P	600 V V_DSS, 12 A I_D, R_DS(ON) = 0.32 Ω (typ.), TO-220 package with non-isolated drain	No built-in isolation; higher gate charge (Q_g = 32 nC) increases driver loss	Select for legacy designs where heatsink grounding is already managed externally and gate drive capability is sufficient

Compared with STP12NK60ZFP and IXTP12N60P, TK12A60W,S4VX delivers lower conduction loss, guaranteed avalanche energy, and integrated drain-to-heatsink isolation - simplifying mechanical design and improving system-level reliability in space-constrained AC-DC applications.

Availability

TK12A60W,S4VX is available at Aetrix Electronics and suitable for AC-DC adapters, LED drivers, and industrial DC-DC converters requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for TK12A60W,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 storage solutions with global manufacturing and quality certification.

TK12A60W,S4VX belongs to Toshiba's DTMOS™ IV super-junction MOSFET product line, engineered for high-efficiency, high-reliability switching in offline power conversion systems up to 100 W.

FAQ

What is the maximum continuous drain current for TK12A60W,S4VX at 25 °C case temperature?

The TK12A60W,S4VX supports a maximum continuous drain current (I_D) of 11.5 A at T_c = 25 °C. This rating assumes proper heatsinking and accounts for thermal derating above 25 °C - for example, at T_c = 100 °C, the usable I_D drops to approximately 5.5 A per the safe operating area curve in the datasheet.

Does TK12A60W,S4VX have an isolated drain terminal, and what is its isolation voltage rating?

Yes, TK12A60W,S4VX uses the TO-220SIS package with electrically isolated drain, rated for 2000 V_RMS isolation between drain and heatsink. This eliminates the need for insulating hardware in grounded-chassis applications and is confirmed in the "Packaging and Internal Circuit" section of the official Toshiba datasheet Rev. 3.0.A.

What is the typical gate threshold voltage range for TK12A60W,S4VX, and how does it affect drive circuit design?

The TK12A60W,S4VX has a gate threshold voltage (V_th) range of 2.7–3.7 V at V_DS = 10 V and I_D = 0.6 mA. This allows direct interface with 3.3 V or 5 V PWM controllers without gate boosting, but requires careful attention to noise margin - especially in high-dv/dt environments where unintended turn-on may occur if V_GS exceeds 2.7 V unintentionally.

Can TK12A60W,S4VX be used in avalanche mode, and what is its guaranteed single-pulse energy rating?

Yes, TK12A60W,S4VX is fully specified for unclamped inductive switching with a guaranteed single-pulse avalanche energy (E_AS) of 180 mJ at T_ch = 25 °C. This value is measured under standardized conditions (V_DD = 90 V, L = 34.9 mH, R_G = 25 Ω, I_AR = 3.0 A) and enables reliable operation in flyback converters without external snubbers.

What is the typical reverse recovery time (t_rr) of the body diode in TK12A60W,S4VX, and why does it matter in SMPS design?

The TK12A60W,S4VX body diode has a typical reverse recovery time (t_rr) of 250 ns at I_DR = 5.8 A and dI_DR/dt = 100 A/µs. This fast recovery minimizes switching loss and voltage overshoot during freewheeling phases - particularly beneficial in quasi-resonant flyback and forward converters where the body diode conducts during dead time.

TK12A60W,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:: 11.5A (Ta)

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

Rds On (Max) @ Id, Vgs:: 300mOhm @ 5.8A, 10V

Vgs(th) (Max) @ Id:: 3.7V @ 600µA

Gate Charge (Qg) (Max) @ Vgs:: 25 nC @ 10 V

Vgs (Max):: ±30V

Input Capacitance (Ciss) (Max) @ Vds:: 890 pF @ 300 V

FET Feature:: -

Power Dissipation (Max):: 35W (Tc)

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220SIS

TK12A60W,S4VX FAQ

1.How can I place an order for TK12A60W,S4VX through Aetrix?

Please submit a Request for Quotation (RFQ) for TK12A60W,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 TK12A60W,S4VX reliable?

The price and inventory of TK12A60W,S4VX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TK12A60W,S4VX is usually 5 days.

3.What payment methods are accepted for TK12A60W,S4VX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TK12A60W,S4VX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TK12A60W,S4VX?

TK12A60W,S4VX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TK12A60W,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 TK12A60W,S4VX?

For technical support, including TK12A60W,S4VX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TK12A60W,S4VX requirements.

6.How does Aetrix verify that TK12A60W,S4VX is sourced from the original manufacturer or authorized distributors?

All TK12A60W,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 TK12A60W,S4VX meets industry standards.

7.What is the process for return or replacement of TK12A60W,S4VX?

All TK12A60W,S4VX units undergo pre-shipment inspection (PSI). If there is an issue with TK12A60W,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 TK12A60W,S4VX part is unused and in its original packaging.

Return procedure for TK12A60W,S4VX:

1.Submit a request within 90 days.

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

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