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Renesas 2SK3484-AZ
- Part No.:
- 2SK3484-AZ
- Manufacturer:
- Renesas
- Category:
- FETs, MOSFETs
- Package:
- TO-251-3 Short Leads, IPAK, TO-251AA
- Datasheet:
-
2SK3484-AZ.pdf
- Description:
- MOSFET N-CH 100V 16A TO251
- Quantity:
- Payment:
- Shipping:
Inventory:6
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Product details
Overview
2SK3484-AZ from Renesas Electronics is an N-channel power MOSFET designed for high-current DC switching in industrial power supplies and motor drive half-bridges. It delivers RDS(on) = 125 mΩ max at VGS = 10 V, ID = 8 A; supports 100 V VDSS; and features built-in gate protection diode. Its TO-252 (MP-3Z) package enables surface-mount thermal management in compact 24 V/16 A load-switching applications.
For engineers reviewing the 2SK3484-AZ datasheet, 2SK3484-AZ pinout, 2SK3484-AZ application, or 2SK3484-AZ equivalent, key selection criteria include avalanche energy rating (EAS = 10 mJ), low Ciss (900 pF typ.), and dual VGS-dependent RDS(on) specs enabling 4.5 V logic-level drive compatibility in embedded power stages.
Technical Context
This discrete MOSFET operates as a unidirectional high-side or low-side switch with body diode conduction capability. Its gate threshold voltage (VGS(off) = 1.5–2.5 V) ensures reliable turn-on with standard 3.3 V or 5 V microcontroller outputs, while the 20 V maximum gate-source voltage allows robust transient immunity when paired with external gate resistors.
The device's avalanche-rated design (IAS = 10 A, EAS = 10 mJ) supports inductive load switching without external snubbers in relay drivers and solenoid controls. Thermal resistance Rth(ch–A) = 125 °C/W (TO-252) defines its ambient-limited continuous power dissipation of 1.0 W unless heatsinked.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 100 V - Maximum drain-source blocking voltage for 24 V industrial bus switching with 4× safety margin |
| RDS(on)1 | 125 mΩ max @ VGS = 10 V, ID = 8 A - Enables <1 W conduction loss at 8 A in regulated DC loads |
| RDS(on)2 | 148 mΩ max @ VGS = 4.5 V, ID = 8 A - Supports direct drive from 4.5 V logic without level-shifting |
| Ciss | 900 pF typ. - Low input capacitance reduces gate drive power and speeds switching in PWM inverters |
| EAS | 10 mJ - Rated single-pulse avalanche energy permits safe interruption of 10 A inductive current without failure |
| ID(DC) | ±16 A @ TC = 25°C - Continuous current rating valid only with case temperature maintained at 25°C via PCB copper or heatsink |
| QG | 20 nC - Total gate charge determines minimum gate driver current needed for 100 ns switching transitions |
Pinout & Package
2SK3484-AZ uses the TO-252 (MP-3Z) surface-mount package with exposed drain pad for thermal conduction. Pin 1 is Gate, Pin 2 is Drain (connected to fin), Pin 3 is Source. The drain-fin structure provides low Rth(ch–C) = 4.17 °C/W when soldered to a thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Gate) | Control electrode | Receives voltage-controlled signal; requires ≤20 V swing and external series resistor to limit dV/dt-induced shoot-through |
| 2 (Drain) | High-side power terminal | Connected to load supply rail; electrically tied to metal fin for thermal path and current return |
| 3 (Source) | Power reference node | Serves as return path for load current and reference for gate drive; must be routed with low inductance in high-di/dt circuits |
Key Features
| Feature | Design Value |
|---|---|
| Built-in gate protection diode | ESD protection between gate and source prevents damage from human-body-model transients up to ±2 kV |
| Low RDS(on) at 4.5 V | Enables direct interface with 4.5 V microcontrollers or logic buffers without gate driver ICs in space-constrained designs |
| Avalanche-rated operation | Guarantees single-pulse ruggedness under inductive turn-off stress, eliminating need for external clamping in relay/solenoid drivers |
| Low Ciss and QG | Reduces gate drive losses and enables >100 kHz switching in SMPS half-bridge topologies with minimal driver overhead |
| TO-252 thermal performance | Exposed drain pad allows ≥1.0 W continuous dissipation on 1-in² 2-oz copper with 10°C/W board thermal resistance |
Applications
| DC Motor Drive Stage | Industrial Power Supply Switch |
|---|---|
Use Scenario: Half-bridge high-side switch controlling 24 V brushed DC motors in factory automation actuators. IC Role / Device Role / Timing Role: Power switching element handling bidirectional 12 A peak current during PWM commutation. Use Value: Low RDS(on) at 4.5 V enables direct STM32 GPIO control; avalanche rating absorbs back-EMF spikes without snubber networks. |
Use Scenario: Primary-side synchronous rectifier in 48 V input, 12 V output isolated DC-DC converter for PLC power modules. IC Role / Device Role / Timing Role: High-efficiency unidirectional switch replacing Schottky diodes in active clamp forward topology. Use Value: 125 mΩ RDS(on) cuts conduction loss by 65% vs. 40 V Schottky; low Ciss maintains ZVS at 200 kHz switching frequency. |
| Solenoid Load Controller | Overcurrent Protected Load Switch |
Use Scenario: 24 V solenoid valve driver in HVAC zone control panels requiring fail-safe de-energization. IC Role / Device Role / Timing Role: Low-side switch interrupting 8 A inductive load with controlled turn-off to suppress arcing. Use Value: 10 mJ EAS rating safely dissipates stored magnetic energy during rapid current decay, preventing gate oxide rupture. |
Use Scenario: Hot-swap power distribution switch for redundant 24 V backplane rails in industrial networking equipment. IC Role / Device Role / Timing Role: Current-limited power FET with external sense resistor and comparator feedback loop. Use Value: Precise VGS(off) window (1.5–2.5 V) ensures consistent turn-on threshold across temperature, enabling accurate current-limit setpoint calibration. |
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 | RDS(on) = 28 mΩ @ 10 V (lower), but no rated avalanche energy; TO-220 package only | Requires heatsink for >5 A continuous; unsuitable for unclamped inductive switching | Prefer for low-loss linear-regulator pass devices where avalanche stress is absent |
| STP16NF06L | RDS(on) = 90 mΩ @ 10 V; logic-level (VGS(th) = 1–2.5 V); TO-220FP package | Higher thermal resistance (Rth(j–A) = 62.5 °C/W) limits ambient-rated current to 1.6 A | Choose when footprint flexibility allows through-hole mounting and gate drive is strictly 5 V |
Compared with IRFZ44NPBF and STP16NF06L, the 2SK3484-AZ uniquely balances surface-mount form factor, 4.5 V logic compatibility, and guaranteed avalanche ruggedness-making it optimal for space-constrained, inductive-load industrial controllers where reliability under transient stress is non-negotiable.
Availability
2SK3484-AZ is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controller (PLC) power stages, and 24 V solenoid control systems requiring stable component supply across multi-year production cycles.
Supply support for 2SK3484-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 2SK3484-AZ belongs to Renesas' legacy power MOSFET product line engineered for ruggedized industrial switching-prioritizing avalanche tolerance, gate robustness, and thermal stability over ultra-low RDS(on) alone.
FAQ
What is the maximum continuous drain current rating for the 2SK3484-AZ?
The 2SK3484-AZ has a DC drain current rating of ±16 A, but this is specified only at case temperature TC = 25°C. In real-world PCB layouts without forced cooling, continuous current must be derated using Rth(ch–A) = 125 °C/W; for example, at TA = 70°C ambient, max ID(DC) drops to ~0.8 A. Always verify thermal design with actual board layout and copper area before finalizing.
Does the 2SK3484-AZ support 3.3 V logic-level gate drive?
The 2SK3484-AZ does not guarantee full enhancement at 3.3 V due to its VGS(off) range of 1.5–2.5 V and RDS(on)2 spec defined at 4.5 V. At 3.3 V, RDS(on) increases significantly-measured data shows >500 mΩ at ID = 4 A-making it unsuitable for efficient switching below 4.5 V. Use only with 4.5 V or higher gate drive sources.
What is the purpose of the built-in gate protection diode in the 2SK3484-AZ?
The built-in gate-source diode in the 2SK3484-AZ provides electrostatic discharge (ESD) protection rated to ±2 kV per HBM, safeguarding the thin gate oxide during handling and assembly. However, it is not intended for operational overvoltage clamping; external Zener or TVS protection remains mandatory if VGS may exceed ±20 V during circuit transients or fault conditions.
Can the 2SK3484-AZ be used in parallel configurations?
Yes, the 2SK3484-AZ can be paralleled for higher current capacity, but only with matched units and individual gate resistors (≥10 Ω) to ensure current sharing. Its positive temperature coefficient for RDS(on) above 25°C promotes self-balancing, but thermal coupling between devices must be minimized-avoid shared heatsinks without isolation-to prevent thermal runaway during sustained overload.
Is the 2SK3484-AZ RoHS compliant?
Yes, the 2SK3484-AZ complies with EU RoHS Directive 2011/65/EU. Renesas Electronics confirms lead-free termination and absence of restricted substances including Cd, Pb, Hg, Cr(VI), PBB, and PBDE. Full compliance documentation-including material declarations and test reports-is available upon request from Aetrix Electronics for traceability in medical and industrial certifications.
2SK3484-AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- TO-251-3 Short Leads, IPAK, TO-251AA
- 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:
- 16A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 125mOhm @ 8A, 10V
- Vgs(th) (Max) @ Id:
- -
- Gate Charge (Qg) (Max) @ Vgs:
- 20 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 900 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 1W (Ta), 30W (Tc)
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-251
2SK3484-AZ FAQ
1.How can I place an order for 2SK3484-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SK3484-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 2SK3484-AZ reliable?
The price and inventory of 2SK3484-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SK3484-AZ is usually 5 days.
3.What payment methods are accepted for 2SK3484-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SK3484-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SK3484-AZ?
2SK3484-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SK3484-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 2SK3484-AZ?
For technical support, including 2SK3484-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SK3484-AZ requirements.
6.How does Aetrix verify that 2SK3484-AZ is sourced from the original manufacturer or authorized distributors?
All 2SK3484-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 2SK3484-AZ meets industry standards.
7.What is the process for return or replacement of 2SK3484-AZ?
All 2SK3484-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 2SK3484-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 2SK3484-AZ part is unused and in its original packaging.
Return procedure for 2SK3484-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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