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Renesas 2SK2461-AZ
- Part No.:
- 2SK2461-AZ
- Manufacturer:
- Renesas
- Category:
- FETs, MOSFETs
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
2SK2461-AZ.pdf
- Description:
- 2SK2461 - SILICON N CHANNEL MOSF
- Quantity:
- Payment:
- Shipping:
Inventory:1,760
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Product details
Overview
2SK2461-AZ from Renesas Electronics is an N-channel power MOSFET designed for high-speed switching in industrial DC-DC converters and motor drive half-bridges, featuring RDS(on)1 = 80 mΩ max at VGS = 10 V / ID = 10 A, 100 V VDSS, and built-in gate-source protection diodes.
For engineers reviewing the 2SK2461-AZ datasheet, 2SK2461-AZ pinout, 2SK2461-AZ application, or 2SK2461-AZ equivalent, key selection criteria include avalanche energy rating (EAS = 40 mJ), low Ciss (1400 pF typ.), and thermal resistance Rth(ch-c) = 3.57 °C/W - critical for thermally constrained industrial power stages.
Technical Context
This device implements a planar vertical DMOS structure optimized for fast turn-on/turn-off with td(on) = 21 ns and tf = 110 ns under specified test conditions (VDD = 50 V, RG = 10 Ω). Its body diode supports synchronous rectification with VF(S-D) = 1.1 V at IF = 20 A and trr = 170 ns.
The integrated gate-source ESD protection diode enables robust handling during PCB assembly but requires external overvoltage clamping in systems where transient gate stress exceeds ±20 V - consistent with its ±20 V VGSS rating and industrial-use classification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 100 V - supports 48 V nominal bus designs with ≥2× voltage margin against transients |
| RDS(on)1 | 80 mΩ max @ VGS = 10 V, ID = 10 A - enables <1 W conduction loss at 10 A DC |
| Ciss | 1400 pF typ. @ VDS = 10 V - determines gate drive power requirement and switching speed limit |
| EAS | 40 mJ - specifies single-pulse inductive avalanche energy handling without failure |
| Rth(ch-c) | 3.57 °C/W - defines junction-to-case thermal path efficiency for heatsink interface design |
| ID(pulse) | ±80 A @ PW ≤ 10 µs, duty ≤ 1% - supports short-circuit current limiting in motor phase legs |
| VGS(off) | 1.0–2.0 V - ensures reliable turn-off at logic-level gate drives down to 2.5 V |
Pinout & Package
2SK2461-AZ uses the MP-45F package - an isolated TO-220 variant with electrically insulated tab, enabling direct mounting to heatsinks without insulating washers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1. Gate | Control electrode | Receives voltage-controlled signal to modulate channel conductivity; requires external RC snubber if driven by high-impedance sources |
| 2. Drain | High-side current output | Connected to positive rail or inductive load; carries full switched current and must be routed with low-inductance layout |
| 3. Source | Reference node / return path | Serves as common reference for gate drive and current sensing; tied to power ground in low-side configurations |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(on) at 4 V gate drive | RDS(on)2 = 100 mΩ max enables partial logic-level operation with 5 V microcontrollers |
| Built-in G-S protection diode | Provides ESD immunity per human-body model without requiring discrete TVS on gate line |
| High avalanche capability | Rated for 20 A single-pulse avalanche current (IAS) - supports unclamped inductive switching in relay drivers |
| Low output capacitance | Coss = 470 pF typ. reduces Miller effect and improves hard-switching efficiency above 100 kHz |
Applications
| Industrial Motor Drive | DC-DC Converter Switch |
|---|---|
Use Scenario: Half-bridge leg in 24–48 V BLDC motor controllers for factory automation actuators. IC Role / Device Role / Timing Role: High-side or low-side switching element controlling phase current commutation. Use Value: 100 V rating and 40 mJ avalanche energy allow safe operation during back-EMF spikes and short-circuit events. | Use Scenario: Primary-side switch in 500 W isolated flyback or forward converter for industrial PLC power supplies. IC Role / Device Role / Timing Role: Main power switch modulated at 65–130 kHz to regulate output voltage. Use Value: 1400 pF Ciss and 110 ns fall time enable efficient high-frequency operation with minimal gate drive loss. |
| Power Factor Correction | Electronic Load Switch |
Use Scenario: Boost switch in active PFC stage of 1 kW AC-DC front-end for test equipment. IC Role / Device Role / Timing Role: Fast-switching element shaping input current waveform to match sinusoidal voltage. Use Value: Low RDS(on) (80 mΩ) minimizes conduction loss across universal AC input range (90–264 VAC). | Use Scenario: Hot-swap controller for 12 V/24 V board-level power distribution in modular instrumentation racks. IC Role / Device Role / Timing Role: Inrush-limited main power switch protecting upstream fuses and connectors. Use Value: Built-in gate-source diode and 20 A DC rating support robust soft-start sequencing without external protection ICs. |
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 |
|---|---|---|---|
| STP10NK100ZFP | 100 V, 10 A, RDS(on) = 0.95 Ω - higher on-resistance, Zener-protected gate | Lower power density; suited for lower-current (<5 A), cost-sensitive designs | Select when gate ruggedness outweighs conduction loss requirements |
| IXTP12N10D2 | 100 V, 12 A, RDS(on) = 0.35 Ω, D2PAK package - no isolation, higher thermal resistance | Requires insulating hardware for heatsink mounting; less suitable for space-constrained layouts | Select when footprint compatibility with D2PAK-based legacy designs is mandatory |
Compared with STP10NK100ZFP and IXTP12N10D2, the 2SK2461-AZ delivers superior power density (80 mΩ vs. ≥350 mΩ), intrinsic gate isolation (MP-45F), and higher pulse current capability (±80 A), making it optimal for thermally demanding industrial switching nodes where layout simplicity and reliability are prioritized.
Availability
2SK2461-AZ is available at Aetrix Electronics and suitable for industrial motor drives, DC-DC converters, and electronic load switches requiring stable component supply and long-term industrial lifecycle support.
Supply support for 2SK2461-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The 2SK2461-AZ belongs to Renesas' legacy industrial power MOSFET product line, engineered specifically for high-reliability switching in factory automation, power supplies, and motor control systems operating within standard quality grade specifications.
FAQ
What is the maximum continuous drain current rating for the 2SK2461-AZ?
The 2SK2461-AZ has a maximum continuous drain current (ID(DC)) of ±20 A at TC = 25 °C. This rating assumes proper heatsinking to maintain case temperature within limits; derating applies above 25 °C per the datasheet's total power dissipation curve. Actual usable current depends on layout, ambient temperature, and thermal interface resistance - the 2SK2461-AZ's Rth(ch-c) = 3.57 °C/W must be factored into junction temperature calculations.
Does the 2SK2461-AZ have built-in gate protection, and how does it affect circuit design?
Yes, the 2SK2461-AZ integrates a gate-to-source protection diode to suppress ESD events. However, this diode only handles brief electrostatic discharges - it does not protect against sustained overvoltage. External gate clamping (e.g., Zener diode to VGS = ±15 V) remains necessary in systems with inductive gate drive or long PCB traces. The 2SK2461-AZ's ±20 V VGSS rating defines absolute maximum stress, not recommended operating range.
Can the 2SK2461-AZ be used in synchronous rectification topologies?
Yes, the 2SK2461-AZ supports synchronous rectification via its integral body diode, which exhibits VF(S-D) = 1.1 V at IF = 20 A and trr = 170 ns. However, its reverse recovery charge Qrr = 770 nC means careful dead-time control is required to avoid shoot-through. For high-efficiency designs, pairing the 2SK2461-AZ with a dedicated synchronous rectifier controller is recommended to fully exploit its low RDS(on).
What is the avalanche energy rating of the 2SK2461-AZ, and under what conditions is it valid?
The 2SK2461-AZ is rated for single-pulse avalanche energy EAS = 40 mJ, measured with starting channel temperature Tch = 25 °C, RG = 25 Ω, and VGS transitioning from 20 V to 0 V. This rating applies only to unclamped inductive switching events - repeated avalanching degrades reliability. The 2SK2461-AZ's IAS = 20 A limit must also be observed; exceeding either parameter voids the guaranteed energy rating.
Is the 2SK2461-AZ suitable for automotive applications?
No, the 2SK2461-AZ is classified as a Standard quality grade device per Renesas documentation, intended for industrial equipment, office machinery, and consumer appliances - not transportation systems. It lacks AEC-Q101 qualification, extended temperature validation beyond –55 to +150 °C, or automotive-specific reliability testing. For automotive use, Renesas offers qualified alternatives such as the RQH-series MOSFETs; the 2SK2461-AZ should not be deployed in vehicle subsystems without formal requalification.
2SK2461-AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Bulk
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 20A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 4V, 10V
- Rds On (Max) @ Id, Vgs:
- 80mOhm @ 10A, 10V
- Vgs(th) (Max) @ Id:
- 2V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 51 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1400 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 2W (Ta), 35W (Tc)
- Operating Temperature:
- 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
2SK2461-AZ FAQ
1.How can I place an order for 2SK2461-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SK2461-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 2SK2461-AZ reliable?
The price and inventory of 2SK2461-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SK2461-AZ is usually 5 days.
3.What payment methods are accepted for 2SK2461-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SK2461-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SK2461-AZ?
2SK2461-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SK2461-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 2SK2461-AZ?
For technical support, including 2SK2461-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SK2461-AZ requirements.
6.How does Aetrix verify that 2SK2461-AZ is sourced from the original manufacturer or authorized distributors?
All 2SK2461-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 2SK2461-AZ meets industry standards.
7.What is the process for return or replacement of 2SK2461-AZ?
All 2SK2461-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 2SK2461-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 2SK2461-AZ part is unused and in its original packaging.
Return procedure for 2SK2461-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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