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

Renesas 2SK2499-AZ

Name: 2SK2499-AZ
Brand: Renesas
SKU: 2SK2499-AZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SK2499-AZ

Manufacturer:: Renesas

Category:: FETs, MOSFETs

Package:: -

Datasheet:: 2SK2499-AZ.pdf

Description:: N-CHANNEL POWER MOSFET

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Product details

Overview

2SK2499-AZ from Renesas Electronics is an N-channel power MOSFET designed for high-current DC switching in industrial power supplies and motor drives. It delivers R_DS(on) = 9 mΩ at V_GS = 10 V / I_D = 25 A, supports ±200 A pulsed drain current, and features built-in gate-source ESD protection diode. Its TO-220AB (MP-25) package enables robust thermal dissipation in conduction-limited applications.

For engineers reviewing the 2SK2499-AZ datasheet, 2SK2499-AZ pinout, 2SK2499-AZ application, or 2SK2499-AZ equivalent, key selection criteria include avalanche energy rating (E_AS = 250 mJ), low-input capacitance (C_iss = 3400 pF), gate charge (Q_G = 152 nC), and operation under V_GS = 4 V logic-level drive capability.

Technical Context

This device uses a planar vertical DMOS structure optimized for unidirectional high-current switching with integrated body diode recovery (t_rr = 105 ns, Q_rr = 265 nC). Its gate threshold voltage (V_GS(off) = 1.0–2.0 V) ensures reliable turn-on with standard 5 V or 3.3 V logic drivers while maintaining noise immunity.

The 2SK2499-AZ operates within a channel temperature range of –55 °C to +150 °C and exhibits monotonic R_DS(on) increase with temperature-reaching ~14 mΩ at T_ch = 125 °C under V_GS = 10 V-enabling predictable thermal derating in continuous conduction mode designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	60 V - Maximum blocking voltage compatible with 48 V bus systems and flyback snubbers
R_DS(on)1	9 mΩ @ V_GS = 10 V, I_D = 25 A - Enables <1 W conduction loss at 25 A DC
I_D(DC)	±50 A - Supports high-current half-bridge or synchronous rectifier legs without parallel devices
E_AS	250 mJ - Withstands single inductive energy spikes up to 250 mJ without failure
C_iss	3400 pF - Low input capacitance reduces gate drive power and improves switching speed
Q_G	152 nC - Determines minimum gate driver peak current requirement (~1.5 A for 100 ns rise time)
t_r/t_f	360 ns / 360 ns - Predictable edge timing enables accurate dead-time calculation in bridge topologies

Pinout & Package

2SK2499-AZ is housed in a TO-220AB (JEDEC) package designated MP-25 by Renesas, featuring isolated metal tab (Drain-connected fin) for direct heatsink mounting and 1.5 W ambient-rated power dissipation.

Pin/Terminal	Circuit Role	Design Meaning
1: Gate	Control electrode	Receives voltage-controlled signal; requires external RC snubber if driven by high-impedance source
2: Drain	Main current output	Connected to metal tab; electrically tied to heatsink-requires insulation when mounted to grounded chassis
3: Source	Main current return	Reference node for gate drive; must be routed with low-inductance path to minimize switching oscillation
4: Fin (Drain)	Thermal & electrical extension	Integral heatsink interface; provides mechanical stability and enhances thermal transfer to external heatsink

Key Features

Feature	Design Value
Low R_DS(on) at 4 V gate drive	R_DS(on)2 = 14 mΩ enables partial logic-level compatibility with 3.3 V/5 V microcontrollers
Built-in G-S protection diode	ESD-rated gate protection diode reduces need for external TVS in low-energy environments
High single-pulse avalanche rating	IAS = 50 A / EAS = 250 mJ allows safe operation during inductive load turn-off transients
Optimized body diode recovery	t_rr = 105 ns and Q_rr = 265 nC support efficient synchronous rectification in DC-DC converters

Applications

Industrial Motor Drives	Switching Power Supplies
Use Scenario: Half-bridge inverter stage driving 3-phase BLDC motors up to 1 kW. IC Role / Device Role / Timing Role: High-side and low-side switching element handling 30–50 A peak phase current. Use Value: Low R_DS(on) minimizes conduction losses; high avalanche energy prevents failure during motor stall or short-circuit events.	Use Scenario: Primary-side switch in 500 W offline LLC resonant converter. IC Role / Device Role / Timing Role: Main power switch operating at 100–300 kHz with zero-voltage switching. Use Value: Low C_iss and Q_G reduce switching losses; fast t_r/t_f enable precise ZVS timing control.
Solar Inverters	Uninterruptible Power Systems
Use Scenario: DC link switching in string-level solar inverters with 600 V DC input. IC Role / Device Role / Timing Role: DC bus isolation switch enabling maintenance bypass and fault disconnection. Use Value: 60 V V_DSS supports 48 V nominal battery banks with margin; high I_D(pulse) handles surge currents during grid reconnection.	Use Scenario: Static switch in online UPS transferring load between utility and inverter outputs. IC Role / Device Role / Timing Role: Bidirectional power path controller with fast turn-on/off for seamless transfer. Use Value: Fast t_r/t_f and low Q_G ensure sub-millisecond transfer time; built-in body diode supports reverse conduction during transfer overlap.

Industrial Motor Drives

Switching Power Supplies

Use Scenario: Half-bridge inverter stage driving 3-phase BLDC motors up to 1 kW.

IC Role / Device Role / Timing Role: High-side and low-side switching element handling 30–50 A peak phase current.

Use Value: Low R_DS(on) minimizes conduction losses; high avalanche energy prevents failure during motor stall or short-circuit events.

Use Scenario: Primary-side switch in 500 W offline LLC resonant converter.

IC Role / Device Role / Timing Role: Main power switch operating at 100–300 kHz with zero-voltage switching.

Use Value: Low C_iss and Q_G reduce switching losses; fast t_r/t_f enable precise ZVS timing control.

Solar Inverters

Uninterruptible Power Systems

Use Scenario: DC link switching in string-level solar inverters with 600 V DC input.

IC Role / Device Role / Timing Role: DC bus isolation switch enabling maintenance bypass and fault disconnection.

Use Value: 60 V V_DSS supports 48 V nominal battery banks with margin; high I_D(pulse) handles surge currents during grid reconnection.

Use Scenario: Static switch in online UPS transferring load between utility and inverter outputs.

IC Role / Device Role / Timing Role: Bidirectional power path controller with fast turn-on/off for seamless transfer.

Use Value: Fast t_r/t_f and low Q_G ensure sub-millisecond transfer time; built-in body diode supports reverse conduction during transfer overlap.

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
IRFZ44NPBF	V_DSS = 55 V, R_DS(on) = 28 mΩ @ 10 V, no specified E_AS rating	Limited to lower-voltage (<40 V) applications; unsuitable for 48 V bus systems requiring avalanche robustness	Select only if V_DS stress remains <45 V and transient energy is externally clamped
STP55NF06L	V_DSS = 60 V, R_DS(on) = 12 mΩ @ 10 V, Q_G = 72 nC, E_AS = 190 mJ	Lower gate charge enables faster switching but reduced avalanche margin vs. 2SK2499-AZ	Prefer for high-frequency SMPS where switching loss dominates; avoid in high-inductance motor drive snubbers

Compared with IRFZ44NPBF and STP55NF06L, the 2SK2499-AZ offers superior avalanche ruggedness (250 mJ) and lower on-resistance (9 mΩ), making it optimal for industrial motor control and high-reliability 48 V power conversion where transient energy absorption and conduction efficiency are critical.

Availability

2SK2499-AZ is available at Aetrix Electronics and suitable for industrial motor drives, switching power supplies, solar inverters, and uninterruptible power systems requiring stable component supply and long-term manufacturability.

Supply support for 2SK2499-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 manufacturer headquartered in Japan, specializing in microcontrollers, analog and power devices, and system-on-chip solutions for industrial, automotive, and infrastructure markets.

The 2SK2499-AZ belongs to Renesas' legacy industrial power MOSFET product line, engineered for high-current, high-reliability switching in factory automation, power conversion, and motor control equipment.

FAQ

What is the maximum continuous drain current rating for the 2SK2499-AZ?

The 2SK2499-AZ has a DC drain current rating of ±50 A at T_c = 25 °C. This rating assumes case temperature is actively maintained via heatsinking; actual usable current drops to ~25 A at T_c = 100 °C due to thermal derating. The device also supports ±200 A pulsed current for ≤10 µs with ≤1% duty cycle, enabling short-duration overload tolerance in motor startup or fault conditions.

Does the 2SK2499-AZ have a built-in gate protection diode, and how should it be used?

Yes, the 2SK2499-AZ integrates a gate-to-source protection diode to suppress electrostatic discharge. However, Renesas explicitly states this internal diode alone is insufficient for full-system ESD protection. External gate protection-such as a series resistor plus TVS diode-is required when the 2SK2499-AZ is exposed to voltages exceeding its ±20 V gate-source rating, especially in automated assembly or field-replaceable modules.

Can the 2SK2499-AZ operate reliably with 5 V gate drive in practical circuits?

The 2SK2499-AZ specifies R_DS(on)2 = 14 mΩ at V_GS = 4 V and I_D = 25 A, confirming functional operation with 5 V logic-level drive. However, its gate threshold voltage (V_GS(off)) ranges from 1.0–2.0 V, so 5 V provides adequate overdrive margin. For best efficiency and thermal performance, 10 V drive is recommended to achieve the rated 9 mΩ R_DS(on).

What is the thermal resistance from channel to case (R_th(ch–c)) for the 2SK2499-AZ?

The 2SK2499-AZ has a channel-to-case thermal resistance of 1.67 °C/W, measured under JEDEC test conditions. This value enables direct calculation of junction temperature rise: T_j = T_c + (P_diss × 1.67). When mounted to a properly torqued heatsink with thermal interface material, this low R_th supports >50 W steady-state dissipation before reaching the 150 °C channel limit.

Is the 2SK2499-AZ suitable for synchronous rectification in DC-DC converters?

Yes-the 2SK2499-AZ is suitable for synchronous rectification due to its low R_DS(on), fast body diode recovery (t_rr = 105 ns, Q_rr = 265 nC), and low Q_G/Q_GD ratio. Its V_F(S–D) = 0.92 V at 50 A ensures low forward conduction loss, while the integrated diode eliminates need for external Schottky placement. Careful gate timing is required to avoid shoot-through in high-frequency (>200 kHz) topologies.

2SK2499-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:: -

2SK2499-AZ FAQ

1.How can I place an order for 2SK2499-AZ through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SK2499-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 2SK2499-AZ reliable?

The price and inventory of 2SK2499-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SK2499-AZ is usually 5 days.

3.What payment methods are accepted for 2SK2499-AZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SK2499-AZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SK2499-AZ?

2SK2499-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SK2499-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 2SK2499-AZ?

For technical support, including 2SK2499-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SK2499-AZ requirements.

6.How does Aetrix verify that 2SK2499-AZ is sourced from the original manufacturer or authorized distributors?

All 2SK2499-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 2SK2499-AZ meets industry standards.

7.What is the process for return or replacement of 2SK2499-AZ?

All 2SK2499-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 2SK2499-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 2SK2499-AZ part is unused and in its original packaging.

Return procedure for 2SK2499-AZ:

1.Submit a request within 90 days.

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

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