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

Toshiba Semiconductor and Storage TK22A65X,S5X

Name: TK22A65X,S5X
Brand: Toshiba Semiconductor and Storage
SKU: TK22A65X,S5X
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TK22A65X,S5X

Manufacturer:: Toshiba Semiconductor and Storage

Category:: FETs, MOSFETs

Package:: TO-220-3 Full Pack

Datasheet:: TK22A65X,S5X.pdf

Description:: X35 PB-F POWER MOSFET TRANSISTOR

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Product details

Overview

TK22A65X from Toshiba Electronic Devices & Storage Corporation is a silicon N-channel super-junction MOSFET designed for high-voltage switching in offline power supplies. It delivers 650 V V_DSS, 22 A I_D (DC), R_DS(ON) = 0.12 Ω (typ.), and operates in enhancement mode with V_th = 2.5–3.5 V - enabling efficient, gate-drive-simple operation in AC-DC adapters and industrial SMPS.

For engineers reviewing the TK22A65X datasheet, TK22A65X pinout, TK22A65X application, or TK22A65X equivalent, key selection criteria include its TO-220SIS package thermal performance (R_th(ch-c) = 2.78 °C/W), avalanche ruggedness (E_AS = 361 mJ), and low-output-capacitance switching (C_oss = 60 pF typ.) for high-frequency PFC and LLC resonant converters.

Technical Context

The TK22A65X implements Toshiba's DTMOS™-H super-junction architecture to achieve low conduction loss without sacrificing switching speed. Its optimized charge characteristics - Q_g = 50 nC, Q_gd = 17 nC - support clean turn-on/turn-off transitions under hard-switching conditions up to 400 V bus voltage.

Designed for unidirectional high-side or low-side switching, it integrates an intrinsic body diode with t_rr = 380 ns and Q_rr = 4.5 µC (typ.), enabling moderate-frequency synchronous rectification and flyback snubberless operation when paired with appropriate gate drive timing.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	650 V - supports universal-input (85–265 V_AC) offline SMPS with ≥2× safety margin against line transients
R_DS(ON)	0.12 Ω (typ.) at V_GS = 10 V - enables <1.5 W conduction loss at 11 A DC, reducing heatsink requirements
I_D (DC)	22 A - rated for continuous output current in 150–300 W industrial power supplies
E_AS	361 mJ - withstands single-pulse inductive energy during overcurrent events without failure
C_oss	60 pF (typ.) - minimizes capacitive switching loss and improves efficiency above 100 kHz
t_rr	380 ns - limits reverse recovery losses in discontinuous-conduction-mode (DCM) flyback designs
R_th(ch-c)	2.78 °C/W - allows 45 W power dissipation with ≤125 °C case temperature rise, supporting compact heatsinking

Pinout & Package

TO-220SIS (JEITA SC-67 / Toshiba 2-10U1S) - isolated package with internal creepage/clearance compliant to 2000 V_RMS isolation rating; metal tab is Drain-connected and electrically isolated from leads.

Pin/Terminal	Circuit Role	Design Meaning
1	Gate	High-impedance control terminal requiring ≤10 V drive; Q_gs1 = 14 nC ensures fast Miller plateau exit
2	Drain	Main high-voltage power terminal; connected to metal tab for thermal conduction and high-current return path
3	Source	Power ground reference; low-inductance connection critical for minimizing switching noise in gate loop

Key Features

Feature	Design Value
Super-junction DTMOS™-H structure	Enables 0.12 Ω R_DS(ON) at 650 V while maintaining <60 pF C_oss for high-frequency efficiency
Enhancement-mode threshold	V_th = 2.5–3.5 V ensures reliable turn-on with standard 5 V or 10 V gate drivers, avoiding unintended conduction
Low Q_gd/Q_g ratio	17 nC / 50 nC = 0.34 - reduces sensitivity to dv/dt-induced false triggering in high-dV/dt environments
Avalanche-rated design	Guaranteed 361 mJ single-pulse E_AS eliminates need for external clamping in many inductive load applications
RoHS-compliant marking	Underlined Lot No. indicates [[G]]/RoHS COMPATIBLE version per EU Directive 2011/65/EU

Applications

Server PSU Primary Switch	Industrial AC-DC Adapter
Use Scenario: High-efficiency 80 PLUS Titanium server power supply operating at 100–500 kHz with active clamp forward or LLC topology. IC Role / Device Role / Timing Role: Main high-side switching device in primary-side power conversion stage; handles 400 V DC bus and 22 A peak current. Use Value: Low R_DS(ON) and C_oss reduce total switching + conduction losses below 2.1 W at full load, improving system efficiency by ≥0.8% over legacy 600 V MOSFETs.	Use Scenario: 200 W industrial AC-DC adapter for PLC I/O modules requiring wide input range (85–305 V_AC) and long service life. IC Role / Device Role / Timing Role: Primary-side switch in continuous-conduction-mode (CCM) PFC boost stage and main PWM switch in downstream half-bridge DC-DC converter. Use Value: Avalanche ruggedness and 150 °C T_ch rating ensure stable operation under brownout and overload conditions without derating.
Telecom Rectifier Module	EV Charger Auxiliary Power Supply
Use Scenario: -48 V telecom rectifier with dual-stage conversion: front-end PFC followed by phase-shifted full-bridge DC-DC. IC Role / Device Role / Timing Role: High-side switch in PFC boost stage; operated at 65–100 kHz with ZVS-assisted soft switching. Use Value: Low Q_gd and controlled dv/dt ruggedness (>50 V/ns) prevent spurious turn-on during high-slew-rate transitions, improving reliability in dense PCB layouts.	Use Scenario: 30 W auxiliary power supply inside 22 kW on-board EV charger, powering MCU, gate drivers, and sensors. IC Role / Device Role / Timing Role: Primary switch in flyback converter fed from 400 V DC link; operates in DCM with self-driven synchronous rectification. Use Value: Fast body diode (t_rr = 380 ns) and low Q_rr minimize cross-conduction loss during transition, enabling >89% efficiency at light loads.

Server PSU Primary Switch

Industrial AC-DC Adapter

Use Scenario: High-efficiency 80 PLUS Titanium server power supply operating at 100–500 kHz with active clamp forward or LLC topology.

IC Role / Device Role / Timing Role: Main high-side switching device in primary-side power conversion stage; handles 400 V DC bus and 22 A peak current.

Use Value: Low R_DS(ON) and C_oss reduce total switching + conduction losses below 2.1 W at full load, improving system efficiency by ≥0.8% over legacy 600 V MOSFETs.

Use Scenario: 200 W industrial AC-DC adapter for PLC I/O modules requiring wide input range (85–305 V_AC) and long service life.

IC Role / Device Role / Timing Role: Primary-side switch in continuous-conduction-mode (CCM) PFC boost stage and main PWM switch in downstream half-bridge DC-DC converter.

Use Value: Avalanche ruggedness and 150 °C T_ch rating ensure stable operation under brownout and overload conditions without derating.

Telecom Rectifier Module

EV Charger Auxiliary Power Supply

Use Scenario: -48 V telecom rectifier with dual-stage conversion: front-end PFC followed by phase-shifted full-bridge DC-DC.

IC Role / Device Role / Timing Role: High-side switch in PFC boost stage; operated at 65–100 kHz with ZVS-assisted soft switching.

Use Value: Low Q_gd and controlled dv/dt ruggedness (>50 V/ns) prevent spurious turn-on during high-slew-rate transitions, improving reliability in dense PCB layouts.

Use Scenario: 30 W auxiliary power supply inside 22 kW on-board EV charger, powering MCU, gate drivers, and sensors.

IC Role / Device Role / Timing Role: Primary switch in flyback converter fed from 400 V DC link; operates in DCM with self-driven synchronous rectification.

Use Value: Fast body diode (t_rr = 380 ns) and low Q_rr minimize cross-conduction loss during transition, enabling >89% efficiency at light loads.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP22NM60ND	600 V V_DSS, R_DS(ON) = 0.19 Ω, TO-220FP package, no isolation rating	Limited to ≤265 V_AC inputs; higher conduction loss increases thermal stress in 300 W+ designs	Acceptable where cost is prioritized over efficiency and isolation compliance
IXTH24N65X2	650 V V_DSS, R_DS(ON) = 0.135 Ω, TO-247 package, 2500 V_RMS isolation	Higher R_DS(ON) and larger footprint; superior dv/dt immunity but requires more board area	Preferred for ultra-high-reliability telecom or medical systems needing extended isolation margin

Compared with STP22NM60ND and IXTH24N65X2, the TK22A65X offers optimal balance of low R_DS(ON), industry-standard TO-220SIS isolation, and proven DTMOS™-H switching behavior - making it ideal for cost-sensitive yet thermally constrained 150–300 W industrial power supplies where layout space and safety certification are critical.

Availability

TK22A65X is available at Aetrix Electronics and suitable for industrial AC-DC adapters, telecom rectifier modules, and EV charger auxiliary power supplies requiring stable component supply across multi-year production cycles.

Supply support for TK22A65X 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 global semiconductor manufacturer specializing in power devices, logic ICs, and storage solutions, with core expertise in silicon power MOSFETs and IGBTs.

The TK22A65X belongs to Toshiba's DTMOS™-H super-junction MOSFET product line, engineered specifically for high-efficiency, high-reliability offline power conversion in industrial, telecom, and renewable energy systems.

FAQ

What is the maximum continuous drain current rating for TK22A65X?

The TK22A65X has a DC drain current rating of 22 A at T_c = 25 °C. This value decreases with increasing case temperature - at T_c = 100 °C, the usable I_D drops to approximately 12.5 A due to thermal derating. The TK22A65X must be mounted on a heatsink capable of maintaining T_c ≤ 100 °C under full-load conditions to sustain reliable operation.

Does TK22A65X have built-in avalanche capability?

Yes, the TK22A65X is fully avalanche-rated with guaranteed single-pulse avalanche energy E_AS = 361 mJ at T_ch = 25 °C. This specification is validated per JEDEC JESD24-1 and enables robust operation during inductive switching transients without external snubbers in properly designed circuits.

What is the gate threshold voltage range for TK22A65X?

The TK22A65X exhibits an enhancement-mode gate threshold voltage V_th of 2.5–3.5 V, measured at V_DS = 10 V and I_D = 1.1 mA. This range ensures compatibility with both 3.3 V and 5 V microcontroller outputs, while providing sufficient margin against false turn-on from noise in noisy industrial environments.

Is TK22A65X RoHS compliant?

Yes, the TK22A65X is RoHS compliant per EU Directive 2011/65/EU. Units marked with an underlined Lot No. indicate [[G]]/RoHS COMPATIBLE status. Environmental compliance documentation, including substance declarations and test reports, is available upon request from Toshiba or authorized distributors.

What package type does TK22A65X use and what is its isolation rating?

The TK22A65X uses the TO-220SIS package (JEITA SC-67), featuring an electrically isolated metal tab. It is rated for 2000 V_RMS isolation between the Drain-connected tab and the leads, meeting reinforced insulation requirements for Class II AC-DC power supplies without additional barrier materials.

TK22A65X,S5X Specifications

Product attributes: Attribute value

Manufacturer:: Toshiba Semiconductor and Storage

Series:: -

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):: 650 V

Current - Continuous Drain (Id) @ 25°C:: 22A (Ta)

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

Rds On (Max) @ Id, Vgs:: 150mOhm @ 11A, 10V

Vgs(th) (Max) @ Id:: 3.5V @ 1.1mA

Gate Charge (Qg) (Max) @ Vgs:: 50 nC @ 10 V

Vgs (Max):: ±30V

Input Capacitance (Ciss) (Max) @ Vds:: 2400 pF @ 300 V

FET Feature:: -

Power Dissipation (Max):: 45W (Tc)

Operating Temperature:: 150°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220SIS

TK22A65X,S5X FAQ

1.How can I place an order for TK22A65X,S5X through Aetrix?

Please submit a Request for Quotation (RFQ) for TK22A65X,S5X 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 TK22A65X,S5X reliable?

The price and inventory of TK22A65X,S5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TK22A65X,S5X is usually 5 days.

3.What payment methods are accepted for TK22A65X,S5X?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TK22A65X,S5X transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TK22A65X,S5X?

TK22A65X,S5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TK22A65X,S5X 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 TK22A65X,S5X?

For technical support, including TK22A65X,S5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TK22A65X,S5X requirements.

6.How does Aetrix verify that TK22A65X,S5X is sourced from the original manufacturer or authorized distributors?

All TK22A65X,S5X 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 TK22A65X,S5X meets industry standards.

7.What is the process for return or replacement of TK22A65X,S5X?

All TK22A65X,S5X units undergo pre-shipment inspection (PSI). If there is an issue with TK22A65X,S5X, 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 TK22A65X,S5X part is unused and in its original packaging.

Return procedure for TK22A65X,S5X:

1.Submit a request within 90 days.

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

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