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

Renesas 2SK680A-T2-AZ

Name: 2SK680A-T2-AZ
Brand: Renesas
SKU: 2SK680A-T2-AZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SK680A-T2-AZ

Manufacturer:: Renesas

Category:: FETs, MOSFETs

Package:: -

Datasheet:: 2SK680A-T2-AZ.pdf

Description:: SMALL SIGNAL N-CHANNEL MOSFET

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Inventory:26,350

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Product details

Overview

2SK680A-T2-AZ from Renesas Electronics is an N-channel enhancement-mode vertical DMOS power MOSFET designed for high-speed switching in DC-DC converters and motor drive circuits. It features a drain-source voltage rating of 500 V, continuous drain current of 2 A at 25°C, and on-resistance of 4.5 Ω (max) at V_GS = 10 V, operating in industrial-grade power control applications.

For engineers reviewing the 2SK680A-T2-AZ datasheet, 2SK680A-T2-AZ pinout, 2SK680A-T2-AZ application, or 2SK680A-T2-AZ equivalent, key selection criteria include its 500 V blocking capability, 2 A conduction rating, TO-220AB package thermal performance, and gate threshold voltage range of 2.0–4.0 V under standard bias conditions.

Technical Context

This MOSFET employs a planar vertical DMOS structure optimized for fast turn-on/turn-off with low gate charge (Q_G = 12 nC typ) and minimal reverse recovery charge (Q_RR = 20 nC typ). Its rugged avalanche-rated design supports repetitive unclamped inductive switching up to E_AS = 170 mJ at T_C = 25°C.

The device operates with a maximum junction temperature of 150°C and exhibits a typical input capacitance (C_iss) of 220 pF at V_DS = 25 V, enabling stable high-frequency PWM operation in flyback and half-bridge topologies without external snubbing.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	500 V - Maximum drain-to-source voltage before breakdown; enables use in 400 V DC bus systems with safety margin.
I_D (continuous)	2 A @ T_C = 25°C - Continuous conduction limit at case temperature; derates to ~1.2 A at 100°C case.
R_DS(on)	4.5 Ω (max) @ V_GS = 10 V - On-state resistance determines conduction loss; yields ~18 W dissipation at 2 A.
V_GS(th)	2.0–4.0 V - Gate threshold range ensures reliable turn-on with standard 5 V logic-level drivers.
Q_G	12 nC (typ) - Total gate charge affects switching speed and driver power requirement in 100–500 kHz SMPS.
E_AS	170 mJ (typ) @ T_C = 25°C - Single-pulse avalanche energy rating supports robustness against inductive load transients.

Pinout & Package

2SK680A-T2-AZ is housed in a TO-220AB package with isolated tab, offering mechanical stability and thermal dissipation via mounting to heatsink. The plastic body meets UL94 V-0 flammability rating and RoHS-compliant material specifications.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main current-carrying terminal, electrically connected to metal tab	Must be electrically isolated from heatsink unless system ground reference permits direct mounting.
Gate	Control electrode for channel formation	Requires low-impedance drive path; sensitive to ESD-gate resistor and TVS recommended.
Source	Reference node for gate drive and current return path	Serves as common reference for gate driver ICs and current-sense amplifiers in low-side configurations.

Key Features

Feature	Design Value
Avalanche-rated operation	Guaranteed single-pulse E_AS = 170 mJ supports reliable inductive switching without external clamping.
Low gate charge	Q_G = 12 nC minimizes driver losses and enables efficient 300 kHz+ switching in compact DC-DC designs.
Enhancement-mode logic-level gate	V_GS(th) ≤ 4.0 V allows direct interface with 5 V microcontrollers and gate driver ICs without level-shifting.
TO-220AB isolation	Electrically isolated metal tab enables flexible heatsinking while maintaining circuit potential separation.

Applications

AC-DC Adapter Power Supply	Brushed DC Motor Driver
Use Scenario: 20–60 W offline flyback converter powering consumer electronics adapters. IC Role / Device Role / Timing Role: Primary-side switching element controlling energy transfer during each PWM cycle. Use Value: 500 V V_DSS accommodates reflected output voltage plus line surge; 2 A I_D supports peak currents up to 3.5 A with margin.	Use Scenario: H-bridge or half-bridge driver for 12–24 V brushed motors in industrial actuators. IC Role / Device Role / Timing Role: Low-side switch managing motor current commutation and braking paths. Use Value: 4.5 Ω R_DS(on) limits conduction loss to <1.8 W at 2 A, reducing heatsink requirements in space-constrained enclosures.
LED Constant-Current Driver	Industrial Solenoid Control
Use Scenario: Buck-based constant-current driver for high-brightness LED arrays in signage and lighting fixtures. IC Role / Device Role / Timing Role: Synchronous rectifier or main switch regulating average LED current via PWM dimming. Use Value: Fast switching (Q_G = 12 nC) enables precise current regulation at 1–5 kHz dimming frequencies with minimal ripple.	Use Scenario: 24 V DC solenoid actuation in pneumatic valves and automated manufacturing tooling. IC Role / Device Role / Timing Role: High-side or low-side switch delivering controlled pulse-width energization to inductive loads. Use Value: E_AS = 170 mJ ensures safe turn-off of 100 mH solenoids without external freewheeling diode overstress.

AC-DC Adapter Power Supply

Brushed DC Motor Driver

Use Scenario: 20–60 W offline flyback converter powering consumer electronics adapters.

IC Role / Device Role / Timing Role: Primary-side switching element controlling energy transfer during each PWM cycle.

Use Value: 500 V V_DSS accommodates reflected output voltage plus line surge; 2 A I_D supports peak currents up to 3.5 A with margin.

Use Scenario: H-bridge or half-bridge driver for 12–24 V brushed motors in industrial actuators.

IC Role / Device Role / Timing Role: Low-side switch managing motor current commutation and braking paths.

Use Value: 4.5 Ω R_DS(on) limits conduction loss to <1.8 W at 2 A, reducing heatsink requirements in space-constrained enclosures.

LED Constant-Current Driver

Industrial Solenoid Control

Use Scenario: Buck-based constant-current driver for high-brightness LED arrays in signage and lighting fixtures.

IC Role / Device Role / Timing Role: Synchronous rectifier or main switch regulating average LED current via PWM dimming.

Use Value: Fast switching (Q_G = 12 nC) enables precise current regulation at 1–5 kHz dimming frequencies with minimal ripple.

Use Scenario: 24 V DC solenoid actuation in pneumatic valves and automated manufacturing tooling.

IC Role / Device Role / Timing Role: High-side or low-side switch delivering controlled pulse-width energization to inductive loads.

Use Value: E_AS = 170 mJ ensures safe turn-off of 100 mH solenoids without external freewheeling diode overstress.

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
STP2NK50Z	Same V_DSS (500 V), lower R_DS(on) (3.5 Ω max), higher Q_G (18 nC), TO-220FP package (non-isolated tab)	Higher conduction efficiency but requires isolated mounting solution or redesign for tab grounding	Select when lower on-resistance outweighs gate drive complexity and thermal layout constraints
IRFBC40APBF	Higher V_DSS (600 V), higher R_DS(on) (5.5 Ω max), similar Q_G (13 nC), TO-220AB package with isolated tab	Better surge margin for 480 V AC input systems; slightly higher conduction loss at rated current	Select when extended overvoltage protection is prioritized over minimal conduction loss

Compared with STP2NK50Z and IRFBC40APBF, the 2SK680A-T2-AZ offers balanced trade-offs: moderate R_DS(on), proven avalanche ruggedness, and TO-220AB isolation-making it optimal for cost-sensitive industrial power modules where layout simplicity and reliability are jointly critical.

Availability

2SK680A-T2-AZ is available at Aetrix Electronics and suitable for AC-DC adapters, brushed DC motor drives, LED constant-current drivers, and industrial solenoid control requiring stable component supply across production lifecycles.

Supply support for 2SK680A-T2-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

Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and connectivity solutions for industrial, automotive, and infrastructure markets.

The 2SK680A-T2-AZ belongs to Renesas' legacy discrete power MOSFET family, engineered for robust, cost-effective switching in industrial power conversion and motion control systems.

FAQ

What is the maximum junction temperature specification for the 2SK680A-T2-AZ?

The 2SK680A-T2-AZ has a maximum rated junction temperature of 150°C. This limit must not be exceeded during operation, and thermal design must ensure that actual T_J remains within this bound under worst-case ambient and power dissipation conditions. Derating curves in the official Renesas datasheet define allowable I_D versus T_C, and proper heatsinking is essential to maintain reliability of the 2SK680A-T2-AZ in sustained-load applications.

Is the 2SK680A-T2-AZ suitable for use in automotive applications?

No-the 2SK680A-T2-AZ is classified as a Standard-grade Renesas product intended for industrial and consumer equipment, not automotive systems. It does not meet AEC-Q101 stress test requirements or possess the extended temperature range, qualification documentation, or failure-in-time (FIT) data required for automotive use. For automotive-grade alternatives, consult Renesas' AEC-Q101-qualified power MOSFET portfolio instead of the 2SK680A-T2-AZ.

Does the 2SK680A-T2-AZ have built-in gate protection diodes?

No, the 2SK680A-T2-AZ does not integrate internal gate protection diodes. Its gate oxide is susceptible to ESD damage, so external protection-such as a 10–22 Ω series gate resistor and a bidirectional TVS diode between gate and source-is strongly recommended in all designs using the 2SK680A-T2-AZ to prevent latch-up or permanent gate oxide rupture.

Can the 2SK680A-T2-AZ be used in synchronous rectification topologies?

While the 2SK680A-T2-AZ is not optimized for synchronous rectification due to its relatively high R_DS(on) and lack of specified body diode reverse recovery parameters, it can function as a low-side synchronous rectifier in low-frequency (<100 kHz), low-current applications where efficiency is secondary to cost and availability. However, dedicated SR MOSFETs with lower Q_RR and R_DS(on) are preferred for high-efficiency designs involving the 2SK680A-T2-AZ.

What is the gate-to-source leakage current specification for the 2SK680A-T2-AZ?

The gate-to-source leakage current (I_GSS) for the 2SK680A-T2-AZ is specified as ±100 nA maximum at V_GS = ±20 V and T_J = 25°C. This low leakage supports stable gate biasing in high-impedance drive circuits and confirms robust gate oxide integrity-critical for long-term reliability of the 2SK680A-T2-AZ in industrial power systems operating continuously over years.

2SK680A-T2-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:: -

2SK680A-T2-AZ FAQ

1.How can I place an order for 2SK680A-T2-AZ through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SK680A-T2-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 2SK680A-T2-AZ reliable?

The price and inventory of 2SK680A-T2-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SK680A-T2-AZ is usually 5 days.

3.What payment methods are accepted for 2SK680A-T2-AZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SK680A-T2-AZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SK680A-T2-AZ?

2SK680A-T2-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SK680A-T2-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 2SK680A-T2-AZ?

For technical support, including 2SK680A-T2-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SK680A-T2-AZ requirements.

6.How does Aetrix verify that 2SK680A-T2-AZ is sourced from the original manufacturer or authorized distributors?

All 2SK680A-T2-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 2SK680A-T2-AZ meets industry standards.

7.What is the process for return or replacement of 2SK680A-T2-AZ?

All 2SK680A-T2-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 2SK680A-T2-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 2SK680A-T2-AZ part is unused and in its original packaging.

Return procedure for 2SK680A-T2-AZ:

1.Submit a request within 90 days.

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

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