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Nexperia USA Inc. BUK764R0-40E,118
- Part No.:
- BUK764R0-40E,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
BUK764R0-40E,118.pdf
- Description:
- MOSFET N-CH 40V 75A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:2,075
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Product details
Overview
BUK764R0-40E from Nexperia is an AEC-Q101-qualified N-channel TrenchMOS standard-level power MOSFET in SOT404 (D2PAK) package, rated for 40 V VDS, 75 A continuous drain current at Tmb = 25 °C, and 3.3 mΩ typical RDS(on) at VGS = 10 V and Tj = 25 °C. It delivers ultra-low on-resistance with true standard-level gate drive (VGS(th) > 1 V at 175 °C), enabling direct microcontroller interfacing in automotive power switching.
For engineers reviewing the BUK764R0-40E datasheet, BUK764R0-40E pinout, BUK764R0-40E application, or BUK764R0-40E equivalent, this device is selected for thermally demanding 12 V automotive systems requiring repetitive avalanche capability, high-temperature reliability up to 175 °C junction temperature, and robust unclamped inductive switching performance.
Technical Context
This MOSFET uses TrenchMOS technology to achieve low RDS(on) while maintaining stable threshold voltage across temperature - VGS(th) remains ≥1 V even at Tj = 175 °C. Its mounting base (mb) is electrically connected to the drain, enabling low-inductance PCB layout and efficient thermal transfer to heatsinks.
The device features a fully rated source-drain diode with 28.9 nC recovered charge and 31.1 ns reverse recovery time, supporting fast commutation in motor control and solenoid drivers. Its 0.82 K/W junction-to-mounting-base thermal resistance ensures effective power dissipation under sustained 75 A operation when properly heatsinked.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 40 V maximum - supports 12 V automotive battery systems with margin for load dump transients |
| RDS(on) | 3.3 mΩ typ @ VGS = 10 V, Tj = 25 °C - enables <1 W conduction loss at 50 A, reducing thermal design burden |
| ID cont. | 75 A @ Tmb = 25 °C - limited by package thermal capacity, not silicon, per Fig. 2 |
| EAS | 302 mJ non-repetitive avalanche energy - allows reliable unclamped inductive switching in transmission and motor control |
| Tj max | 175 °C - qualified for under-hood automotive environments without derating penalties |
| QGD | 15.5 nC - low gate-drain charge improves switching efficiency and reduces Miller-induced turn-off delay |
| Rth(j-mb) | 0.82 K/W - enables direct thermal coupling to heatsink, critical for high-power density designs |
Pinout & Package
SOT404 (D2PAK) plastic single-ended surface-mounted package with 3 leads (one lead cropped); mounting base (mb) is integral to the package and electrically connected to the drain terminal for low-inductance, high-current routing and thermal conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | G (Gate) | Standard-level input requiring ≥10 V for full enhancement; compatible with 3.3 V/5 V MCU GPIO via external driver if needed |
| 2 | D (Drain) | Main high-side or low-side power path; electrically tied to mounting base for direct heatsink connection |
| 3 | S (Source) | Power return path; referenced to system ground in low-side configurations or to load in high-side topologies |
| mb | Mounting Base | Drain-connected metal pad - must be soldered to copper pour or heatsink; contributes significantly to thermal and electrical performance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity, and mechanical shock per automotive reliability standards |
| Repetitive avalanche rating | Enables robust operation in inductive load switching without external snubbers in start-stop and transmission control |
| True standard-level gate | VGS(th) > 1 V at 175 °C ensures reliable turn-on with standard logic-level drivers across full operating temperature range |
| 175 °C junction rating | Eliminates thermal derating in engine bay applications - maintains full current capability up to max Tj |
| Low QGD/QG ratio | 15.5 nC / 54 nC ≈ 0.29 - improves hard-switching efficiency and reduces risk of spurious turn-on during high dV/dt events |
Applications
| Engine Start-Stop Control | Transmission Solenoid Driver |
|---|---|
|
Use Scenario: High-current switching of starter motor engagement/disengagement in micro-hybrid vehicles during frequent stop-start cycles. IC Role / Device Role / Timing Role: Low-side power switch controlling solenoid coil current with precise timing for clutch actuation and gear engagement. Use Value: 302 mJ avalanche energy rating absorbs inductive kickback without clamping components; 75 A rating handles peak cranking loads reliably. |
Use Scenario: Driving 12 V hydraulic solenoids in automatic transmission valve bodies requiring fast, repeatable actuation. IC Role / Device Role / Timing Role: High-speed, high-current switch enabling sub-50 ns turn-off for precise pulse-width modulation of solenoid force. Use Value: 20 ns rise time and 20 ns fall time support PWM frequencies >10 kHz; low RDS(on) minimizes self-heating during duty-cycle operation. |
| Electric Power Steering (EPS) Motor Phase Switch | 12 V Automotive Lighting Control |
|
Use Scenario: Half-bridge phase leg in brushless DC motor driver for EPS systems operating in high-temperature engine compartments. IC Role / Device Role / Timing Role: High-side or low-side switching element handling bidirectional motor current up to 75 A peak. Use Value: 0.82 K/W Rth(j-mb) enables direct heatsinking to aluminum housing; 175 °C rating avoids thermal shutdown during sustained assist torque. |
Use Scenario: On/off and dimming control of LED headlamps, fog lamps, and interior lighting in modern vehicle architectures. IC Role / Device Role / Timing Role: Low-side switch modulating lamp current with PWM or linear regulation depending on brightness level. Use Value: 3.3 mΩ RDS(on) limits conduction loss to <130 mW at 20 A - eliminates need for external heatsink in compact lamp modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel automotive power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL220N4F7AG | 40 V, 220 A, 1.7 mΩ RDS(on), D2PAK package, AEC-Q101 qualified | Higher current rating and lower RDS(on) but larger footprint and higher gate charge (QG = 105 nC) | Preferred for higher-power EPS or HVAC blower motors where board space permits and gate drive strength supports higher QG |
| IRF1404ZLPBF | 40 V, 180 A, 3.4 mΩ RDS(on), TO-220AB package, not AEC-Q101 qualified | Same RDS(on) but lacks automotive qualification and has higher Rth(j-a) (62 K/W vs. 0.82 K/W to mb) | Acceptable for non-automotive industrial 12 V switching where qualification and thermal performance are secondary |
Compared with STL220N4F7AG and IRF1404ZLPBF, BUK764R0-40E offers optimal balance of AEC-Q101 compliance, thermal performance via mounting-base conduction, and gate-drive compatibility - making it preferred for space-constrained, thermally aggressive automotive modules where qualification and reliability are mandatory.
Availability
BUK764R0-40E is available at Aetrix Electronics and suitable for automotive power distribution, engine control unit (ECU) output stages, and transmission control modules requiring stable component supply and long-term lifecycle assurance.
Supply support for BUK764R0-40E 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete, logic, and MOSFET solutions, with deep expertise in automotive-grade power devices and process technologies.
This device belongs to Nexperia's TrenchMOS automotive power portfolio, engineered specifically for high-current, high-temperature 12 V automotive subsystems such as start-stop, transmission, and EPS - emphasizing ruggedness, qualification integrity, and thermal efficiency.
FAQ
Is BUK764R0-40E suitable for high-side switching configurations?
Yes - its SOT404 package features a drain-connected mounting base that simplifies high-side thermal and electrical integration. The device supports bootstrap gate driving and has been validated in high-side motor control applications per Nexperia's AN11158 application note. Gate threshold stability up to 175 °C ensures consistent turn-on behavior in elevated ambient conditions.
What is the maximum recommended PCB copper area for optimal thermal performance?
Nexperia recommends ≥2000 mm² of 2 oz copper on the mounting base side, directly connected to the mb pad, to achieve the specified 0.82 K/W Rth(j-mb). Smaller areas increase thermal resistance proportionally - e.g., 500 mm² raises Rth(j-mb) to ~1.4 K/W. Thermal vias (≥12×0.3 mm diameter) beneath the mb pad further enhance heat transfer to internal layers.
Does BUK764R0-40E include integrated ESD protection?
No - it does not integrate dedicated ESD protection circuitry. The device meets HBM ESD rating of ±2 kV (per JESD22-A114) as a bare die characteristic, but external TVS diodes or RC filters are required for robust protection in automotive harness interfaces subject to ISO 10605 pulses. Gate oxide integrity relies on proper handling and layout practices.
Can BUK764R0-40E replace BUZ72A in existing designs?
Not directly - BUZ72A is a TO-220 device with different pinout, thermal path, and 100 V rating. While both are N-channel MOSFETs, BUK764R0-40E has lower voltage rating (40 V), superior RDS(on), and automotive qualification. Replacement requires PCB redesign for SOT404 footprint, gate drive review for standard-level compatibility, and validation of avalanche performance in the target inductive load.
BUK764R0-40E,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 40 V
- Current - Continuous Drain (Id) @ 25°C:
- 75A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 4mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 54 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 4405 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 182W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
BUK764R0-40E,118 FAQ
1.How can I place an order for BUK764R0-40E,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK764R0-40E,118 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 BUK764R0-40E,118 reliable?
The price and inventory of BUK764R0-40E,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK764R0-40E,118 is usually 5 days.
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BUK764R0-40E,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK764R0-40E,118 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 BUK764R0-40E,118?
For technical support, including BUK764R0-40E,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK764R0-40E,118 requirements.
6.How does Aetrix verify that BUK764R0-40E,118 is sourced from the original manufacturer or authorized distributors?
All BUK764R0-40E,118 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 BUK764R0-40E,118 meets industry standards.
7.What is the process for return or replacement of BUK764R0-40E,118?
All BUK764R0-40E,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK764R0-40E,118, 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 BUK764R0-40E,118 part is unused and in its original packaging.
Return procedure for BUK764R0-40E,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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