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

Renesas 2SK3326(9)AZ

Name: 2SK3326(9)AZ
Brand: Renesas
SKU: 2SK3326(9)AZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SK3326(9)AZ

Manufacturer:: Renesas

Category:: FETs, MOSFETs

Package:: -

Datasheet:: 2SK3326(9)AZ.pdf

Description:: DISCRETE / POWER MOSFET

Quantity:: RFQ Add To RFQ list

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Product details

Overview

2SK3326(9)AZ from NEC is an N-channel enhancement-mode DMOS power MOSFET in an isolated TO-220 package, rated for 500 V V_DSS, 10 A continuous drain current, and 0.85 Ω max R_DS(on) at V_GS = 10 V. It delivers low gate charge (22 nC typ.), avalanche capability (10.7 mJ), and fast switching (t_d(off) = 40 ns) for high-voltage DC-DC converters and AC adapter primary-side switching.

For engineers reviewing the 2SK3326(9)AZ datasheet, 2SK3326(9)AZ pinout, 2SK3326(9)AZ application, or 2SK3326(9)AZ equivalent, key selection criteria include its isolated TO-220 thermal performance (R_th(ch-C) = 3.2 °C/W), ±30 V gate rating, body diode reverse recovery (Q_rr = 2.6 µC), and industrial-grade reliability per NEC Standard quality grade.

Technical Context

This device operates as a unidirectional high-side or low-side switch in hard-switched flyback and forward converter topologies. Its gate threshold voltage (V_GS(off) = 2.5–3.5 V) enables compatibility with standard 10 V gate drivers, while its 1200 pF input capacitance and 190 pF output capacitance support stable high-frequency operation up to 100 kHz.

The integrated body diode exhibits 1.0 V forward voltage at 10 A and 0.5 µs reverse recovery time under 50 A/µs di/dt, enabling synchronous rectification-capable designs when paired with external control. Avalanche energy rating (E_AS = 10.7 mJ at T_ch = 25 °C) supports robustness against inductive turn-off transients in offline SMPS.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	500 V - Withstands full mains-referenced DC bus in universal-input offline converters
R_DS(on) max	0.85 Ω at V_GS = 10 V, I_D = 5 A - Limits conduction loss to ≤4.25 W at 5 A RMS
Q_G typ	22 nC - Enables efficient 100 kHz switching with ≤1 W gate drive loss using 10 Ω resistor
E_AS	10.7 mJ - Absorbs single-pulse inductive energy without failure in 150 V clamp circuits
t_d(off)	40 ns - Supports tight dead-time control in half-bridge configurations
C_iss	1200 pF - Determines Miller plateau duration and gate driver current demand
I_D(pulse)	±40 A - Handles short-circuit surge currents in overcurrent protection schemes

Pinout & Package

2SK3326(9)AZ uses the isolated TO-220(MP-45F) package with electrically insulated tab (no internal thermal connection to drain). Mounting requires insulating washer and thermal compound for heatsink interface.

Pin/Terminal	Circuit Role	Design Meaning
1 (Gate)	Control electrode	Receives 10 V logic-level signal; ±30 V absolute rating prevents ESD damage during handling
2 (Drain)	High-voltage power terminal	Connected to primary-side DC bus; electrically isolated from tab and heatsink
3 (Source)	Power return and reference node	Serves as gate driver return path; defines local ground for PWM controller feedback

Key Features

Feature	Design Value
Isolated TO-220 package	Enables direct mounting to grounded heatsinks without additional insulation hardware
Avalanche-rated operation	Guarantees single-pulse ruggedness up to 10.7 mJ without derating or external snubbers
Low Q_G/R_DS(on) ratio	25.9 nC/Ω - Balances switching speed and conduction loss for 65–100 kHz SMPS
Body diode with controlled Q_rr	2.6 µC reverse recovery charge - Reduces cross-conduction risk in quasi-resonant topologies
Wide V_GS operating range	±30 V rating - Allows use of bootstrap or transformer-isolated gate drivers without level-shifting

Applications

AC Adapter Primary Switch	Industrial DC-DC Converter
Use Scenario: 90–264 VAC input, 12–24 VDC output flyback converter delivering 65 W in compact wall-mount enclosure. IC Role / Device Role / Timing Role: Primary-side power switch controlling energy transfer into transformer; driven by UC3842-based PWM controller at 65 kHz. Use Value: 0.85 Ω R_DS(on) limits conduction loss to 2.1 W at 5 A peak, while 40 ns t_d(off) ensures precise timing control under variable load.	Use Scenario: 48 VDC input to 12 VDC isolated output forward converter powering PLC I/O modules in factory automation. IC Role / Device Role / Timing Role: Main switching element in active-clamp forward topology; synchronized to 100 kHz ZVS controller. Use Value: Isolated TO-220 package eliminates need for ceramic insulators, reducing BOM cost and assembly steps in high-volume production.
Offline LED Driver	UPS Inverter Stage
Use Scenario: Constant-current 30 W LED driver for street lighting, operating from 220 VAC with PFC pre-regulator. IC Role / Device Role / Timing Role: High-side switch in buck-boost PFC stage; handles 500 V transient spikes during line surges. Use Value: 500 V V_DSS rating avoids derating margin issues common with 400 V MOSFETs in 230 VAC systems with 20% tolerance.	Use Scenario: 350 VDC bus in 1 kVA online UPS inverter stage converting to 230 VAC output via H-bridge. IC Role / Device Role / Timing Role: Low-side switch in half-bridge leg; commutates 10 A RMS load current with minimal shoot-through risk. Use Value: 10.7 mJ E_AS withstands inductive kickback during grid-failure transitions without external clamping diodes.

AC Adapter Primary Switch

Industrial DC-DC Converter

Use Scenario: 90–264 VAC input, 12–24 VDC output flyback converter delivering 65 W in compact wall-mount enclosure.

IC Role / Device Role / Timing Role: Primary-side power switch controlling energy transfer into transformer; driven by UC3842-based PWM controller at 65 kHz.

Use Value: 0.85 Ω R_DS(on) limits conduction loss to 2.1 W at 5 A peak, while 40 ns t_d(off) ensures precise timing control under variable load.

Use Scenario: 48 VDC input to 12 VDC isolated output forward converter powering PLC I/O modules in factory automation.

IC Role / Device Role / Timing Role: Main switching element in active-clamp forward topology; synchronized to 100 kHz ZVS controller.

Use Value: Isolated TO-220 package eliminates need for ceramic insulators, reducing BOM cost and assembly steps in high-volume production.

Offline LED Driver

UPS Inverter Stage

Use Scenario: Constant-current 30 W LED driver for street lighting, operating from 220 VAC with PFC pre-regulator.

IC Role / Device Role / Timing Role: High-side switch in buck-boost PFC stage; handles 500 V transient spikes during line surges.

Use Value: 500 V V_DSS rating avoids derating margin issues common with 400 V MOSFETs in 230 VAC systems with 20% tolerance.

Use Scenario: 350 VDC bus in 1 kVA online UPS inverter stage converting to 230 VAC output via H-bridge.

IC Role / Device Role / Timing Role: Low-side switch in half-bridge leg; commutates 10 A RMS load current with minimal shoot-through risk.

Use Value: 10.7 mJ E_AS withstands inductive kickback during grid-failure transitions without external clamping diodes.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP5NK50ZFP	500 V, 4.5 A I_D(DC), 1.2 Ω R_DS(on), TO-220FP (non-isolated)	Lower current rating; requires insulating pad for heatsink mounting	Prefer where lower cost outweighs isolation requirement and peak current stays below 4.5 A
FQP5N50C	500 V, 5.0 A I_D(DC), 1.4 Ω R_DS(on), TO-220 (non-isolated)	No avalanche rating; higher R_DS(on) increases conduction loss by ~65% vs. 2SK3326(9)AZ	Select only in non-critical, low-duty-cycle applications where avalanche immunity is not required

Compared with STP5NK50ZFP and FQP5N50C, the 2SK3326(9)AZ provides superior thermal management via its isolated TO-220 package, higher continuous current (10 A vs. ≤5 A), and guaranteed avalanche ruggedness-critical for industrial SMPS reliability under transient overload conditions.

Availability

2SK3326(9)AZ is available at Aetrix Electronics and suitable for AC adapters, industrial DC-DC converters, offline LED drivers, and UPS inverter stages requiring stable component supply and long-term lifecycle support.

Supply support for 2SK3326(9)AZ 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

NEC Corporation was a Japanese multinational electronics company specializing in semiconductors, telecommunications, and IT infrastructure before its semiconductor division became Renesas Electronics in 2010.

The 2SK3326(9)AZ belongs to NEC's industrial-grade discrete power MOSFET product line, designed specifically for high-reliability offline switching power supplies operating across wide temperature ranges and demanding surge environments.

FAQ

What is the maximum continuous drain current rating for the 2SK3326(9)AZ?

The 2SK3326(9)AZ has a maximum continuous drain current (I_D(DC)) rating of ±10 A at T_C = 25 °C. This rating assumes proper heatsinking and derates linearly above 25 °C case temperature, reaching zero at 160 °C per the derating curve in Figure 1 of the datasheet. Actual design current must account for R_DS(on) temperature dependence and thermal resistance to ambient.

Does the 2SK3326(9)AZ have an electrically isolated package?

Yes, the 2SK3326(9)AZ uses the isolated TO-220(MP-45F) package where the metal tab is electrically insulated from the drain terminal. This allows direct mounting to a grounded heatsink without requiring additional insulating hardware, simplifying thermal design and improving system safety in high-voltage applications.

What is the gate-to-source voltage rating for the 2SK3326(9)AZ?

The 2SK3326(9)AZ has a gate-to-source voltage rating of ±30 V (V_GSS(AC)). This rating applies under AC conditions with V_DS = 0 V and ensures reliable operation with standard 10 V gate drivers while providing margin against ESD events and gate drive overshoot during fast switching transitions.

How does the avalanche capability of the 2SK3326(9)AZ benefit circuit design?

With a specified single-pulse avalanche energy rating of 10.7 mJ at T_ch = 25 °C, the 2SK3326(9)AZ can safely absorb inductive energy during unintended turn-off events-such as transformer saturation or short-circuit faults-without requiring external snubber networks. This improves system robustness and reduces component count in industrial SMPS designs.

What is the typical total gate charge value for the 2SK3326(9)AZ?

The typical total gate charge (Q_G) for the 2SK3326(9)AZ is 22 nC, measured under V_DD = 400 V, V_GS = 10 V, and I_D = 10 A conditions. This value determines gate driver power requirements and switching transition times; for example, driving Q_G through a 10 Ω resistor yields ~220 ns Miller plateau duration at 10 V.

2SK3326(9)AZ Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

FET Type:: -

Technology:: -

Drain to Source Voltage (Vdss):: -

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

Drive Voltage (Max Rds On, Min Rds On):: -

Rds On (Max) @ Id, Vgs:: -

Vgs(th) (Max) @ Id:: -

Gate Charge (Qg) (Max) @ Vgs:: -

Vgs (Max):: -

Input Capacitance (Ciss) (Max) @ Vds:: -

FET Feature:: -

Power Dissipation (Max):: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

2SK3326(9)AZ FAQ

1.How can I place an order for 2SK3326(9)AZ through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SK3326(9)AZ 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 2SK3326(9)AZ reliable?

The price and inventory of 2SK3326(9)AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SK3326(9)AZ is usually 5 days.

3.What payment methods are accepted for 2SK3326(9)AZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SK3326(9)AZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SK3326(9)AZ?

2SK3326(9)AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SK3326(9)AZ 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 2SK3326(9)AZ?

For technical support, including 2SK3326(9)AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SK3326(9)AZ requirements.

6.How does Aetrix verify that 2SK3326(9)AZ is sourced from the original manufacturer or authorized distributors?

All 2SK3326(9)AZ 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 2SK3326(9)AZ meets industry standards.

7.What is the process for return or replacement of 2SK3326(9)AZ?

All 2SK3326(9)AZ units undergo pre-shipment inspection (PSI). If there is an issue with 2SK3326(9)AZ, 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 2SK3326(9)AZ part is unused and in its original packaging.

Return procedure for 2SK3326(9)AZ:

1.Submit a request within 90 days.

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

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