Renesas RJK0393DPA-00#J5A
- Part No.:
- RJK0393DPA-00#J5A
- Manufacturer:
- Renesas
- Category:
- FETs, MOSFETs
- Package:
- 8-PowerWDFN
- Datasheet:
-
RJK0393DPA-00#J5A.pdf
- Description:
- MOSFET N-CH 30V 40A 8WPAK
- Quantity:
- Payment:

- Shipping:

Inventory:9,365
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Product details
Overview
RJK0393DPA-00#J5A from Renesas Electronics is a 30V, 40A N-channel power MOSFET in WPAK(3F) package with 4.3 mΩ max RDS(on) at VGS = 10 V, rated for high-speed switching in DC-DC converters and motor drivers, and capable of gate drive down to 4.5 V.
For engineers reviewing the RJK0393DPA-00#J5A datasheet, RJK0393DPA-00#J5A pinout, RJK0393DPA-00#J5A application, or RJK0393DPA-00#J5A equivalent, this device is selected for low-conduction-loss, high-current switching where thermal performance (θch–c = 3.13 °C/W), fast turn-on delay (13.2 ns), and avalanche ruggedness (25.6 mJ) are critical.
Technical Context
This MOSFET uses a trench-gate silicon process optimized for low RDS(on) and reduced gate charge (Qg = 21 nC), enabling efficient operation in synchronous buck converters operating up to 1 MHz. Its body diode exhibits trr = 23.5 ns and VDF = 0.83 V at 40 A, supporting high-frequency freewheeling.
The device features a thermally enhanced WPAK(3F) package with exposed drain pad and 8-pin configuration (4× drain, 3× source, 1× gate), delivering 40 W channel dissipation at Tc = 25 °C and supporting high-density mounting without requiring external heatsinking in moderate-power applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 30 V - Maximum blocking voltage for 12 V/24 V input systems with margin against transients |
| RDS(on) max | 4.3 mΩ at VGS = 10 V - Enables ≤1.7 W conduction loss at 20 A continuous current |
| ID | 40 A - Supports high-current output stages in industrial motor drives and server VRMs |
| Qg | 21 nC - Reduces gate driver power demand and switching losses in high-frequency operation |
| td(on) | 13.2 ns - Minimizes dead-time uncertainty in synchronous rectification control |
| EAR | 25.6 mJ - Withstands repetitive inductive switching stress in solenoid and relay drivers |
| θch–c | 3.13 °C/W - Allows direct PCB copper thermal coupling for compact thermal design |
Pinout & Package
Package: WPAK(3F), Renesas code PWSN0008DE-A - thermally enhanced surface-mount package with exposed drain pad, 8-terminal leadframe, 0.075 g mass, and 4.90 mm × 3.92 mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Source | Common source connection for internal parallel dies; low-inductance return path for load current |
| 4 | Gate | Single-point gate input; requires <50 Ω series resistance to suppress ringing during fast switching |
| 5, 6, 7, 8 | Drain | Parallel-connected drain terminals tied to exposed thermal pad; primary heat transfer path to PCB |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(on) at 4.5 V gate drive | RDS(on) = 5.9 mΩ max enables logic-level compatibility with 5 V microcontrollers and PWM controllers |
| High-current avalanche rating | IAP = 16 A and EAR = 25.6 mJ support robust operation in inductive load switching without snubbers |
| Fast switching with low Qgd/Qgs ratio | Qgd = 4.7 nC and Qgs = 9.5 nC yield Miller plateau control suitable for hard-switched topologies |
| Pb-free and halogen-free construction | Complies with JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) and RoHS Directive 2011/65/EU |
Applications
| DC-DC Synchronous Buck Converter | Brushed DC Motor Driver |
|---|---|
Use Scenario: High-efficiency 12 V to 3.3 V/5 V point-of-load conversion in networking equipment. IC Role / Device Role / Timing Role: High-side power switch in synchronous rectification stage, switching at 500 kHz–1 MHz. Use Value: 4.3 mΩ RDS(on) reduces conduction loss by >30% vs. comparable 5 mΩ MOSFETs, improving full-load efficiency by 1.2% at 20 A. |
Use Scenario: H-bridge driver for 24 V, 15 A brushed motors in automated guided vehicles. IC Role / Device Role / Timing Role: Low-side switching element handling bidirectional current with fast body-diode recovery. Use Value: 23.5 ns trr minimizes shoot-through risk during direction reversal, reducing switching losses by 18% versus 35 ns alternatives. |
| Automotive HVAC Blower Control | Industrial Solenoid Driver |
Use Scenario: PWM-controlled blower fan in passenger cabin climate systems with 12 V supply. IC Role / Device Role / Timing Role: Single-N-channel switch replacing mechanical relay, driven by automotive MCU GPIO. Use Value: 4.5 V gate drive capability allows direct interface with 5 V tolerant MCU outputs, eliminating level-shifter circuitry. |
Use Scenario: 24 V solenoid actuation in pneumatic valve control modules for factory automation. IC Role / Device Role / Timing Role: Inductive load switch subjected to repetitive avalanche energy during de-energization. Use Value: 25.6 mJ rated avalanche energy ensures reliable operation over >100,000 cycles without derating or external clamping. |
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 |
|---|---|---|---|
| IRL3803PBF | RDS(on) = 6.0 mΩ @ 10 V; higher Qg (32 nC); TO-220AB package | Larger footprint and higher thermal resistance (θJC = 3.0 °C/W but no exposed pad) | Prefer RJK0393DPA-00#J5A for space-constrained SMT designs requiring lower gate drive loss |
| SiR872DP-T1-GE3 | RDS(on) = 3.8 mΩ @ 10 V; PQFN 5×6 mm; higher Ciss (3800 pF) | Higher input capacitance increases gate driver current demand at 1 MHz switching | Prefer RJK0393DPA-00#J5A when minimizing gate charge and optimizing for 500 kHz–1 MHz hard-switched converters |
Compared with IRL3803PBF and SiR872DP-T1-GE3, the RJK0393DPA-00#J5A delivers superior thermal coupling via its WPAK(3F) exposed drain pad, lower Qg, and tighter RDS(on) distribution-making it optimal for high-power density, high-reliability industrial and automotive subsystems where board area and thermal headroom are constrained.
Availability
RJK0393DPA-00#J5A is available at Aetrix Electronics and suitable for DC-DC converters, motor drivers, solenoid controls, and HVAC blower modules requiring stable component supply across extended production lifecycles.
Supply support for RJK0393DPA-00#J5A 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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The RJK0393DPA-00#J5A belongs to Renesas' Power MOSFET product line, engineered for high-current, high-efficiency switching in compact power stages where thermal performance and gate drive simplicity are essential.
FAQ
What is the maximum continuous drain current rating for RJK0393DPA-00#J5A?
The RJK0393DPA-00#J5A has a continuous drain current rating of 40 A at Tc = 25 °C. This rating assumes proper PCB copper area for thermal conduction and is derated to approximately 25 A at Tc = 100 °C per the power vs. temperature derating curve on page 3 of the datasheet. The device supports peak pulsed current up to 160 A for short durations (≤10 μs, duty cycle ≤1%).
Does RJK0393DPA-00#J5A support 5 V logic-level gate drive?
Yes, the RJK0393DPA-00#J5A is fully characterized for 4.5 V gate drive, with RDS(on) specified at 5.9 mΩ max under ID = 20 A, VGS = 4.5 V conditions. Its VGS(off) range (1.2–2.5 V) ensures strong enhancement-mode behavior and noise immunity when driven from standard 5 V microcontroller GPIOs without level shifting.
What is the thermal resistance from channel to case (θch–c) for RJK0393DPA-00#J5A?
The RJK0393DPA-00#J5A has a channel-to-case thermal impedance of 3.13 °C/W, measured under standard test conditions (Tc = 25 °C). This value reflects direct conduction from the silicon die through the exposed drain pad into the PCB copper, and is validated using the JEDEC JESD51-14 standard for surface-mount packages with thermal pads.
Can RJK0393DPA-00#J5A be used in avalanche mode repeatedly?
Yes, the RJK0393DPA-00#J5A is rated for repetitive avalanche energy of 25.6 mJ at Tch = 25 °C with Rg ≥ 50 Ω, as confirmed in the Absolute Maximum Ratings table. Its avalanche current rating is 16 A, and the device is designed to withstand repeated inductive switching events typical in solenoid and relay drivers without degradation when operated within the SOA limits shown on page 3.
What is the package type and lead finish for RJK0393DPA-00#J5A?
The RJK0393DPA-00#J5A uses the WPAK(3F) package (RENESAS code PWSN0008DE-A), a thermally optimized 8-pin surface-mount outline with an exposed drain pad. It features Sn (tin) plating on all leads and complies with Pb-free and halogen-free requirements per JEDEC standards and RoHS Directive 2011/65/EU.
RJK0393DPA-00#J5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-PowerWDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 30 V
- Current - Continuous Drain (Id) @ 25°C:
- 40A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 4.3mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id:
- -
- Gate Charge (Qg) (Max) @ Vgs:
- 21 nC @ 4.5 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 3270 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 40W (Tc)
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WPAK
RJK0393DPA-00#J5A FAQ
1.How can I place an order for RJK0393DPA-00#J5A through Aetrix?
Please submit a Request for Quotation (RFQ) for RJK0393DPA-00#J5A 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 RJK0393DPA-00#J5A reliable?
The price and inventory of RJK0393DPA-00#J5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RJK0393DPA-00#J5A is usually 5 days.
3.What payment methods are accepted for RJK0393DPA-00#J5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RJK0393DPA-00#J5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RJK0393DPA-00#J5A?
RJK0393DPA-00#J5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RJK0393DPA-00#J5A 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 RJK0393DPA-00#J5A?
For technical support, including RJK0393DPA-00#J5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RJK0393DPA-00#J5A requirements.
6.How does Aetrix verify that RJK0393DPA-00#J5A is sourced from the original manufacturer or authorized distributors?
All RJK0393DPA-00#J5A 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 RJK0393DPA-00#J5A meets industry standards.
7.What is the process for return or replacement of RJK0393DPA-00#J5A?
All RJK0393DPA-00#J5A units undergo pre-shipment inspection (PSI). If there is an issue with RJK0393DPA-00#J5A, 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 RJK0393DPA-00#J5A part is unused and in its original packaging.
Return procedure for RJK0393DPA-00#J5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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