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Renesas RJF0409JSP-00#J0
- Part No.:
- RJF0409JSP-00#J0
- Manufacturer:
- Renesas
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
RJF0409JSP-00#J0.pdf
- Description:
- ABU / MOSFET
- Quantity:
- Payment:
- Shipping:
Inventory:1,586
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Product details
Overview
RJF0409JSP-00#J0 from Renesas Electronics is a 40 V, 5 A silicon N-channel thermal protection power switch with integrated overtemperature shutdown, current limiting, and latch-type recovery. It operates at logic-level gate drive (3.5–12 V), delivers RDS(on) of 70–100 mΩ at VGS = 5–10 V, and is AEC-Q101 qualified for automotive power distribution applications such as body control modules and lighting drivers.
For engineers reviewing the RJF0409JSP-00#J0 datasheet, RJF0409JSP-00#J0 pinout, RJF0409JSP-00#J0 application, or RJF0409JSP-00#J0 equivalent, this device offers verified thermal shutdown at 175°C junction temperature, short-circuit robustness, and SOP-8 (FP-8DAV) surface-mount compatibility - critical for high-reliability 12 V automotive subsystems requiring fault containment without external sensing circuitry.
Technical Context
This dual-MOSFET thermal FET integrates two independent N-channel power switches in one SOP-8 package, each with dedicated gate resistors, temperature-sensing circuits, latch-type shutdown logic, and current-limiting circuitry. Its operation relies on junction-temperature-triggered gate voltage cutoff, requiring 0 V reset to recover after thermal trip.
The device supports 12 V supply operation, exhibits 1.5 A avalanche current capability with 15 mJ energy rating, and maintains stable RDS(on) across –40°C to 150°C channel temperature range. Shutdown timing is characterized at 0.37 ms under overload, with input thresholds VIH ≥ 3.5 V and VIL ≤ 1.2 V for direct microcontroller interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 40 V - Maximum drain-source blocking voltage compatible with 12 V automotive systems with load dump margin. |
| ID (continuous) | 5 A - Rated output current per channel; limited by internal current-sense circuitry to prevent destructive overloads. |
| RDS(on) | 70–100 mΩ - On-resistance at VGS = 10 V / 5 V; determines conduction loss and thermal rise in PCB-mounted applications. |
| TSD | 175°C - Junction temperature threshold for automatic gate shutdown; enables self-protection without external thermal sensors. |
| VGS(th) | 1.1–2.1 V - Gate threshold voltage range; ensures reliable turn-on with standard 3.3 V/5 V logic drivers. |
| tos | 0.37 ms - Overload shutdown response time; limits fault energy during short-circuit events before thermal runaway. |
| AEC-Q101 | Qualified - Certified for automotive-grade reliability including temperature cycling, humidity, and mechanical shock testing. |
Pinout & Package
Package: SOP-8 (FP-8DAV), Renesas code PRSP0008DD-D - 4.9 mm × 3.95 mm × 1.27 mm surface-mount outline with Ni/Pd/Au plating, optimized for thermal dissipation on FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | Source (Channel 1 & 2) | Common source terminals for both integrated MOSFETs; tied to ground or low-side return path. |
| 2, 4 | Gate (Channel 1 & 2) | Independent logic-level gate inputs; accept 3.5–12 V drive; each triggers its own thermal shutdown circuit. |
| 5, 6, 7, 8 | Drain (Channel 1 & 2) | Parallel-drain configuration per channel (pins 5–6 for Ch1, 7–8 for Ch2); supports higher current density and thermal spreading. |
Key Features
| Feature | Design Value |
|---|---|
| Latch-type thermal shutdown | Requires full gate voltage removal (0 V) to reset - prevents automatic restart during persistent overtemperature conditions. |
| Built-in current limitation | Clamps output current at ~5 A per channel - eliminates need for external sense resistors or current-limit ICs. |
| Logic-level gate drive | Operates down to 3.5 V VGS - directly compatible with 3.3 V MCU GPIOs without level-shifting circuitry. |
| High short-circuit endurance | Withstands repeated 5 A short-circuit events with <0.37 ms shutdown - protects downstream wiring and connectors. |
| Integrated temperature sensing | Junction-sensing circuit located in gate region - provides faster thermal response than external thermistors or PCB traces. |
Applications
| Automotive Body Control Module | LED Headlamp Driver |
|---|---|
|
Use Scenario: Power switching for door lock actuators, window lift motors, and interior lighting in 12 V vehicle architectures. IC Role / Device Role / Timing Role: High-side or low-side power switch with autonomous thermal and overcurrent protection. Use Value: Eliminates discrete fuse + driver + thermal sensor design; reduces BOM count while meeting ISO 16750 load-dump immunity requirements. |
Use Scenario: Constant-current switching for adaptive front-lighting systems (AFS) with dynamic beam shaping. IC Role / Device Role / Timing Role: Protected power stage enabling PWM dimming and fault-safe LED string control. Use Value: Built-in 175°C shutdown prevents LED thermal runaway; latch behavior avoids flicker during transient overloads. |
| Engine Bay Fan Controller | Smart Junction Box |
|
Use Scenario: Driving brushed DC cooling fans exposed to ambient temperatures up to 125°C under hood. IC Role / Device Role / Timing Role: Thermally hardened power switch with integrated current limit and fast fault response. Use Value: Maintains RDS(on) stability across wide temperature range; 0.37 ms shutdown prevents fan coil burnout during stall. |
Use Scenario: Distributed power distribution unit replacing mechanical relays in next-generation vehicle electrical centers. IC Role / Device Role / Timing Role: Dual-channel protected switch enabling software-configurable load routing and diagnostics. Use Value: Dual independent channels allow redundant or split-load configurations; AEC-Q101 qualification supports 15-year vehicle lifecycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar thermal-protected power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NVTFS5C426L | 40 V, 5.8 A, RDS(on) = 42 mΩ @ 10 V; no integrated thermal shutdown or current limiting. | Requires external thermal monitoring and current-sense amplifier for comparable protection. | Choose when lower conduction loss is prioritized and system-level protection can be implemented externally. |
| Infineon BTS7002-1EPP | 40 V, 5.5 A high-side smart power switch; includes SPI diagnostics, open-load detection, and adjustable current limit. | Higher integration with communication interface; larger TSDSON-8 package (5.15 × 6.15 mm). | Choose when diagnostic feedback, programmable current limit, or CAN/LIN bus coordination is required. |
Compared with NVTFS5C426L and BTS7002-1EPP, RJF0409JSP-00#J0 uniquely combines latch-type thermal shutdown, built-in current limiting, and SOP-8 footprint in a single AEC-Q101-qualified device - simplifying layout and reducing component count where autonomous, self-contained protection is essential.
Availability
RJF0409JSP-00#J0 is available at Aetrix Electronics and suitable for automotive body electronics, LED lighting systems, and engine bay power distribution requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for RJF0409JSP-00#J0 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 is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications with emphasis on functional safety and reliability.
RJF0409JSP-00#J0 belongs to Renesas' Thermal FET family - engineered specifically for automotive power distribution nodes needing autonomous fault containment without software intervention or external protection components.
FAQ
What is the shutdown recovery method for RJF0409JSP-00#J0?
RJF0409JSP-00#J0 uses a latch-type thermal shutdown mechanism: once triggered at 175°C junction temperature, the gate voltage is cut off and remains disabled until the gate terminal is actively driven to 0 V. This requires external circuitry or MCU firmware to force gate low before re-enabling - preventing unsafe auto-restart during sustained overtemperature conditions.
Does RJF0409JSP-00#J0 support parallel operation of its two channels?
Yes, RJF0409JSP-00#J0 integrates two independent N-channel MOSFETs in one SOP-8 package, with separate gate (pins 2 and 4) and source (pins 1 and 3) terminals. Their drains are internally grouped (pins 5–6 and 7–8), allowing either independent or paralleled channel use. When paralleled, total current capacity reaches 10 A with shared thermal sensing.
What is the maximum allowable power supply voltage for RJF0409JSP-00#J0?
The absolute maximum drain-to-source voltage (VDSS) for RJF0409JSP-00#J0 is 40 V, and the recommended operating supply voltage is 12 V as specified in the datasheet. Gate-to-source voltage must remain within –2.5 V to +16 V; exceeding these limits risks permanent damage to the internal protection circuits or MOSFET structure.
How does the current limitation function in RJF0409JSP-00#J0?
RJF0409JSP-00#J0 incorporates a built-in current limitation circuit that clamps drain current at approximately 5 A per channel under normal operating conditions (VGS = 5 V, VDS = 10 V). This hard current limit activates before thermal shutdown, providing immediate protection against short circuits without relying on external sensing or feedback loops.
Is RJF0409JSP-00#J0 suitable for high-humidity under-hood environments?
Yes, RJF0409JSP-00#J0 is AEC-Q101 qualified and packaged in an SOP-8 (FP-8DAV) with Ni/Pd/Au-plated leads, designed for automotive under-hood use. Its thermal shutdown and current limiting functions remain effective across –40°C to +150°C ambient and channel temperature ranges, and it meets JEDEC moisture sensitivity level (MSL) requirements for reflow assembly in humid environments.
RJF0409JSP-00#J0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 2
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- -
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 3.5V ~ 12V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 5A
- Rds On (Typ):
- 81mOhm
- Input Type:
- Non-Inverting
- Features:
- Latch Function
- Fault Protection:
- Current Limiting (Fixed), Over Temperature
- Operating Temperature:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOP
RJF0409JSP-00#J0 FAQ
1.How can I place an order for RJF0409JSP-00#J0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RJF0409JSP-00#J0 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 RJF0409JSP-00#J0 reliable?
The price and inventory of RJF0409JSP-00#J0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RJF0409JSP-00#J0 is usually 5 days.
3.What payment methods are accepted for RJF0409JSP-00#J0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RJF0409JSP-00#J0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RJF0409JSP-00#J0?
RJF0409JSP-00#J0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RJF0409JSP-00#J0 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 RJF0409JSP-00#J0?
For technical support, including RJF0409JSP-00#J0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RJF0409JSP-00#J0 requirements.
6.How does Aetrix verify that RJF0409JSP-00#J0 is sourced from the original manufacturer or authorized distributors?
All RJF0409JSP-00#J0 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 RJF0409JSP-00#J0 meets industry standards.
7.What is the process for return or replacement of RJF0409JSP-00#J0?
All RJF0409JSP-00#J0 units undergo pre-shipment inspection (PSI). If there is an issue with RJF0409JSP-00#J0, 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 RJF0409JSP-00#J0 part is unused and in its original packaging.
Return procedure for RJF0409JSP-00#J0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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