My Inquiry
My Account
Nexperia USA Inc. BUK762R0-40E,118
- Part No.:
- BUK762R0-40E,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
BUK762R0-40E,118.pdf
- Description:
- MOSFET N-CH 40V 120A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,552
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BUK762R0-40E from Nexperia is a standard-level N-channel TrenchMOS FET in SOT404 (D2PAK) package, rated for 40 V VDS, 120 A continuous drain current at Tmb = 25 °C, and 175 °C junction temperature. It features 1.65 mΩ typical RDS(on) at VGS = 10 V and ID = 25 A, repetitive avalanche rating, and AEC-Q101 qualification for automotive power switching.
For engineers reviewing the BUK762R0-40E datasheet, BUK762R0-40E pinout, BUK762R0-40E application, or BUK762R0-40E equivalent, key selection criteria include thermal performance under high-current mounting base conditions, gate drive compatibility with standard 10 V logic, and ruggedness in start-stop micro-hybrid and transmission control circuits.
Technical Context
This MOSFET uses TrenchMOS technology to achieve low on-resistance and fast switching with QGD = 33.4 nC and tf = 46 ns under specified test conditions. Its true standard-level gate (VGS(th) > 1 V at 175 °C) ensures reliable turn-on across full automotive temperature range without requiring elevated gate drive.
The device integrates a robust body diode with trr = 43 ns and Qr = 54 nC, and exhibits Rth(j-mb) = 0.51 K/W - enabling high-power dissipation when mounted on thermally optimized PCBs or heatsinks. Its 621 mJ single-pulse avalanche energy supports unclamped inductive load handling in motor and solenoid drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 40 V - Maximum drain-source blocking voltage; defines use in 12 V automotive systems with transient overvoltage margin. |
| RDS(on) | 1.65 mΩ typ @ VGS = 10 V, ID = 25 A, Tj = 25 °C - Enables <1 W conduction loss at 80 A, critical for thermally constrained modules. |
| ID cont. | 120 A @ Tmb = 25 °C - Limited by package thermal capability; derates to zero at Tmb ≈ 200 °C per Fig. 2. |
| Ptot | 293 W @ Tmb = 25 °C - Total power dissipation ceiling before thermal runaway; requires low Rth(j-mb) heatsinking. |
| QGD | 33.4 nC - Gate-drain charge governing Miller plateau duration; directly impacts switching loss and dV/dt immunity. |
| EAS | 621 mJ - Non-repetitive avalanche energy; allows safe operation during inductive turn-off without external snubbers. |
| Tj max | 175 °C - Junction temperature limit enabling operation in engine bay and transmission control environments. |
Pinout & Package
SOT404 (D2PAK) plastic single-ended surface-mounted package with isolated mounting base connected internally to drain. Package dimensions: 15.8 × 10.3 × 4.5 mm (L × W × H), featuring one cropped lead and thermally enhanced copper tab for direct heatsink attachment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal; accepts standard 10 V logic drive; threshold >1 V at 175 °C ensures turn-on stability in hot environments. |
| 2 (D) | Drain | Main power output terminal; electrically tied to mounting base for low-inductance, high-current path to heatsink. |
| 3 (S) | Source | Power return and reference node; separates gate drive ground from high-side switching return paths. |
| mb (Mounting Base) | Drain Connection | Exposed copper pad soldered to PCB thermal pad or heatsink; carries full drain current and dominates thermal resistance (Rth(j-mb) = 0.51 K/W). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, transmission, and start-stop systems per stress test requirements. |
| Repetitive avalanche rated | Rated for repeated inductive switching events without degradation - enables robust motor and solenoid driver designs. |
| 175 °C junction rating | Supports operation in under-hood environments where ambient exceeds 125 °C and board temperatures reach 150 °C. |
| True standard-level gate | VGS(th) > 1 V at 175 °C ensures gate remains fully enhanced using conventional 10 V microcontroller outputs without level-shifting. |
| Low RDS(on) × QG figure of merit | 1.65 mΩ × 109.2 nC = 180 mΩ·nC - balances conduction and switching losses for high-efficiency 12 V power stages. |
Applications
| Engine Start-Stop Control | Transmission Solenoid Driver |
|---|---|
|
Use Scenario: High-current switching of starter motor engagement/disengagement during automatic engine restart in micro-hybrid vehicles. IC Role / Device Role / Timing Role: Main power switch controlling 12 V battery-to-starter circuit; handles 100+ A peak currents with <100 µs turn-on/turn-off timing. Use Value: 621 mJ avalanche energy prevents failure during sudden load disconnection; 175 °C rating sustains reliability near hot engine blocks. |
Use Scenario: Precision PWM control of hydraulic solenoids regulating gear shift pressure in automatic transmissions. IC Role / Device Role / Timing Role: Low-loss, fast-switching power stage driving inductive solenoid loads at 1–10 kHz PWM frequencies. Use Value: 33.4 nC QGD and 46 ns fall time minimize switching loss; RDS(on) stability over temperature ensures consistent current delivery. |
| 12 V Motor Drive Module | High-Performance Lighting Switch |
|
Use Scenario: Compact fan or pump driver in HVAC or cooling systems requiring continuous 80–100 A operation with minimal thermal footprint. IC Role / Device Role / Timing Role: Primary power switch in half-bridge or high-side configuration; thermally coupled to aluminum heatsink via mounting base. Use Value: 0.51 K/W Rth(j-mb) enables >200 W dissipation with <50 K rise; SOT404 package fits high-density automotive PCB layouts. |
Use Scenario: On/off and dimming control of high-intensity LED headlamps or daytime running lights (DRL) in modern vehicle front modules. IC Role / Device Role / Timing Role: Robust high-side switch managing surge currents during cold LED turn-on and ESD transients. Use Value: Repetitive avalanche capability absorbs inductive kickback from LED driver inductors; AEC-Q101 ensures long-term field reliability. |
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 |
|---|---|---|---|
| STL220N4F7AG | 40 V, 220 A, RDS(on) = 0.95 mΩ @ 10 V, but only 150 °C Tj max and no AEC-Q101 certification. | Higher current capacity suits larger motors, but lacks automotive qualification and high-temp stability. | Select only for non-automotive industrial 12 V systems where extended temperature range is not required. |
| IRFB4115PBF | 150 V, 110 A, RDS(on) = 3.2 mΩ @ 10 V, TO-220 package, no AEC-Q101, higher RDS(on) and thermal resistance. | Designed for broader voltage range (e.g., 24/48 V), but less efficient and less thermally capable than BUK762R0-40E in 12 V automotive use. | Consider only if system requires >40 V blocking or legacy TO-220 mechanical fit; otherwise inferior for automotive 12 V switching. |
Compared with STL220N4F7AG and IRFB4115PBF, the BUK762R0-40E uniquely combines AEC-Q101 compliance, 175 °C operation, and sub-2 mΩ on-resistance in a thermally optimized D2PAK package - making it the only drop-in solution for high-reliability, high-current 12 V automotive power switching where thermal and qualification constraints are non-negotiable.
Availability
BUK762R0-40E is available at Aetrix Electronics and suitable for engine start-stop control, transmission solenoid actuation, and high-current 12 V motor drives requiring stable component supply across automotive production lifecycles.
Supply support for BUK762R0-40E 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 essential semiconductors - high-volume, high-reliability discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The BUK762R0-40E belongs to Nexperia's TrenchMOS automotive power portfolio, engineered specifically for thermally demanding, safety-critical 12 V power switching in engine, transmission, and chassis control units.
FAQ
Is BUK762R0-40E suitable for high-frequency PWM applications above 50 kHz?
Yes - with tf = 46 ns, tr = 36 ns, and QGD = 33.4 nC, it supports efficient switching up to 100 kHz in hard-switched 12 V power stages. However, layout parasitics and gate drive strength must be optimized to maintain low switching loss and avoid oscillation.
What is the maximum continuous drain current at 100 °C mounting base temperature?
Per Figure 2 in the datasheet, continuous drain current is 120 A at Tmb = 25 °C and remains 120 A at Tmb = 100 °C - limited by package construction rather than silicon, with linear derating beginning above ~120 °C.
Does the mounting base require electrical isolation from the heatsink?
No - the mounting base is internally connected to the drain terminal. When mounted to a heatsink, the heatsink becomes part of the drain circuit and must be electrically isolated from other system potentials unless intentionally used as a common drain return path.
Can BUK762R0-40E replace older D2PAK MOSFETs like BUZ11 in automotive upgrades?
Yes, with design validation - it offers lower RDS(on) (1.65 mΩ vs. ~40 mΩ), higher current (120 A vs. 30 A), and AEC-Q101 qualification absent in BUZ11. Gate drive remains compatible, but PCB thermal relief and layout must accommodate higher power density and avalanche energy handling.
BUK762R0-40E,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:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 40 V
- Current - Continuous Drain (Id) @ 25°C:
- 120A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 2mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 109.2 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 8500 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 293W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
BUK762R0-40E,118 FAQ
1.How can I place an order for BUK762R0-40E,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK762R0-40E,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 BUK762R0-40E,118 reliable?
The price and inventory of BUK762R0-40E,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK762R0-40E,118 is usually 5 days.
3.What payment methods are accepted for BUK762R0-40E,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK762R0-40E,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK762R0-40E,118?
BUK762R0-40E,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK762R0-40E,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 BUK762R0-40E,118?
For technical support, including BUK762R0-40E,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK762R0-40E,118 requirements.
6.How does Aetrix verify that BUK762R0-40E,118 is sourced from the original manufacturer or authorized distributors?
All BUK762R0-40E,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 BUK762R0-40E,118 meets industry standards.
7.What is the process for return or replacement of BUK762R0-40E,118?
All BUK762R0-40E,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK762R0-40E,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 BUK762R0-40E,118 part is unused and in its original packaging.
Return procedure for BUK762R0-40E,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BUK762R0-40E,118 Tags
-
BSZ180P03NS3EGATMA1
Infineon Technologies
-
SIRA14DP-T1-GE3
Vishay Siliconix
-
AO4419
Alpha & Omega Semiconductor Inc.
-
SISA14BDN-T1-GE3
Vishay Siliconix
-
PSMN9R5-30YLC,115
Nexperia USA Inc.
-
BUK9Y21-40E,115
Nexperia USA Inc.
-
RTQ035N03HZGTR
Rohm Semiconductor
-
FDMS7680
onsemi
-
RQ3E180BNTB
Rohm Semiconductor
-
STL6N2VH5
STMicroelectronics
-
DMPH4029LFGQ-7
Diodes Incorporated
-
DMT6015LSS-13
Diodes Incorporated
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
