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Nexperia USA Inc. BUK7240-100A,118
- Part No.:
- BUK7240-100A,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
BUK7240-100A,118.pdf
- Description:
- MOSFET N-CH 100V 34A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:7,339
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Product details
Overview
BUK7240-100A,118 from Nexperia is an AEC-Q101 qualified N-channel TrenchMOS standard-level power MOSFET in DPAK (SOT428) package, designed for automotive-critical 12 V/24 V load switching. It delivers 34 A continuous drain current at 25 °C mounting base temperature, 100 mΩ RDS(on) at 175 °C junction temperature, and 122.5 mJ unclamped avalanche energy - enabling robust operation in motor, lamp, and solenoid control circuits.
For engineers reviewing the BUK7240-100A datasheet, BUK7240-100A pinout, BUK7240-100A application, or BUK7240-100A equivalent, this device is selected for thermally demanding automotive power switching where gate drive compatibility with 10 V logic, 175 °C junction rating, and low conduction loss are mandatory design requirements.
Technical Context
This MOSFET uses TrenchMOS technology to achieve low RDS(on) while maintaining ruggedness under repetitive and unclamped avalanche stress. Its gate threshold voltage (VGS(th)) ranges from 1 V at 175 °C to 4.4 V at –55 °C, ensuring reliable turn-on across automotive temperature extremes.
The device features integrated source-drain diode with 0.85–1.2 V forward voltage at 25 A and 70 ns reverse recovery time, supporting freewheeling in inductive loads. Thermal resistance from junction to mounting base is 1.3 K/W, enabling high-power dissipation when mounted on a thermally optimized PCB copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V maximum - supports 24 V automotive systems with ≥4× safety margin against load dump transients. |
| ID (continuous) | 34 A at Tmb = 25 °C - enables direct driving of high-current solenoids or small DC motors without external heatsinking. |
| RDS(on) | 34–40 mΩ at 25 °C / 100 mΩ at 175 °C - ensures <1.2 W conduction loss at 25 A, critical for thermal management in sealed enclosures. |
| EAS | 122.5 mJ unclamped avalanche energy - sustains single-event inductive kickback from 35 A coil currents without failure. |
| Tj max | 175 °C - certified for under-hood automotive environments including engine control modules and body controllers. |
| QG | ~60 nC typical - compatible with standard 10 V microcontroller GPIO or dedicated gate drivers without excessive drive power demand. |
| Ciss | 1720–2293 pF - defines input capacitance affecting switching speed and driver sizing for PWM frequencies up to 100 kHz. |
Pinout & Package
Package: DPAK (SOT428), plastic surface-mount package with exposed mounting base electrically connected to drain. Dimensions per JEDEC TO-252 outline; requires minimum 200 mm² copper pour for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal; accepts 10 V logic-level drive; 2–4 V threshold ensures compatibility with 3.3 V/5 V MCUs when derated. |
| 2 (D) | Drain | Main power output; internally bonded to mounting base - must be connected to system ground plane or heatsink for thermal and electrical integrity. |
| 3 (S) | Source | Power return path; referenced to gate drive circuit ground; forms low-side switch configuration with common-source topology. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, and HTRB - required for ECU, lighting, and power distribution modules. |
| Low RDS(on) at high temperature | 100 mΩ @ 175 °C - maintains efficiency in hot under-hood locations where ambient exceeds 105 °C. |
| Standard-level gate drive | 10 V VGS fully enhances device - eliminates need for charge pump or level shifter in 12 V battery-referenced systems. |
| Robust avalanche capability | 122.5 mJ EAS - protects against inductive energy release during sudden current interruption in motor/solenoid circuits. |
| Thermal performance | Rth(j-mb) = 1.3 K/W - enables >100 W power handling with proper PCB copper area, reducing need for discrete heatsinks. |
Applications
| Automotive Body Control Module | 12 V DC Motor Driver |
|---|---|
|
Use Scenario: Switching power to door locks, window lifts, and seat adjusters in modern BCMs. IC Role / Device Role / Timing Role: Low-side power switch controlling 12 V inductive loads with PWM or on/off duty cycles. Use Value: 175 °C rating ensures uninterrupted operation during prolonged vehicle cabin heating; 100 mΩ RDS(on) limits self-heating during extended hold states. |
Use Scenario: Driving brushed DC motors in HVAC actuators, radiator fans, and wiper systems. IC Role / Device Role / Timing Role: High-current, low-side switching element with integrated body diode for freewheeling. Use Value: 122.5 mJ avalanche energy absorbs back-EMF spikes during rapid PWM shutdown, preventing voltage overshoot beyond 100 V rating. |
| Truck 24 V Lighting Control | Industrial Solenoid Interface |
|
Use Scenario: Managing headlamp, fog lamp, and auxiliary lighting loads in commercial vehicles with 24 V nominal systems. IC Role / Device Role / Timing Role: High-voltage, high-current power switch interfacing between MCU outputs and lamp ballasts or LED drivers. Use Value: 100 V VDS withstands 24 V system transients up to ISO 7637-2 Pulse 5a (120 V surge), eliminating need for external TVS clamping. |
Use Scenario: Controlling hydraulic/pneumatic solenoid valves in agricultural machinery and factory automation panels. IC Role / Device Role / Timing Role: Robust power switch handling repetitive inductive turn-off events with minimal snubber requirements. Use Value: 34 A ID rating supports peak solenoid inrush currents; low Ciss enables fast switching for precise valve timing control. |
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 |
|---|---|---|---|
| STL220N10F7 | 100 V, 220 A, 3.5 mΩ RDS(on) @ 25 °C; PowerFLAT 5x6 package; higher current, lower RDS(on), but requires gate driver due to 4.5 V VGS(th). | Better suited for high-efficiency 48 V systems or high-frequency synchronous rectification; not drop-in for 10 V gate drive. | Select when board space allows larger package and gate drive circuitry is available; avoid if using 10 V MCU outputs directly. |
| IRF3205PBF | 55 V, 110 A, 8 mΩ RDS(on); TO-220 package; non-automotive grade; no AEC-Q101 qualification; higher RDS(on) at 175 °C. | Limited to non-safety-critical industrial use; lacks thermal and reliability validation for automotive deployment. | Acceptable only for cost-sensitive prototyping or non-automotive 12 V applications; not suitable for production automotive designs. |
Compared with STL220N10F7 and IRF3205PBF, the BUK7240-100A uniquely balances AEC-Q101 compliance, 10 V gate compatibility, and 175 °C operation in a compact DPAK - making it the only viable choice for volume automotive low-side switching where qualification, thermal margin, and drive simplicity are jointly required.
Availability
BUK7240-100A,118 is available at Aetrix Electronics and suitable for automotive body control modules, 12 V/24 V motor drives, and industrial solenoid interfaces requiring stable component supply across multi-year production cycles.
Supply support for BUK7240-100A,118 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 - spun off from NXP in 2017 and headquartered in Nijmegen, Netherlands.
The BUK7240-100A belongs to Nexperia's Automotive TrenchMOS portfolio, engineered specifically for robust, thermally efficient power switching in harsh-temperature automotive subsystems such as lighting, chassis, and body electronics.
FAQ
Is BUK7240-100A,118 qualified for automotive applications?
Yes. It is fully AEC-Q101 qualified and specified for automotive-critical use, including operation from –55 °C to +175 °C junction temperature. The device undergoes rigorous stress testing for high-temperature operating life, temperature cycling, and humidity bias, meeting requirements for engine bay and under-dash modules.
What is the recommended PCB layout for thermal performance?
Mount the DPAK package on ≥200 mm² of 2 oz copper connected to the drain (pin 2 and mounting base). Use ≥4 thermal vias (0.3 mm diameter, spaced ≤2 mm apart) beneath the pad to inner-layer ground planes. Avoid narrow traces on source/gate paths to minimize parasitic inductance during switching.
Can BUK7240-100A,118 be used in high-frequency PWM applications?
Yes - with appropriate gate drive. Its 1720–2293 pF Ciss, 133–182 pF Crss, and 12 ns td(on) support PWM operation up to 100 kHz. For optimal efficiency, use a gate driver capable of ±2 A peak current and minimize gate loop inductance with short, wide traces and local 100 nF decoupling.
Does the device include integrated protection features?
No integrated protection circuitry is present. However, its inherent avalanche ruggedness (122.5 mJ EAS) and 175 °C junction rating provide passive robustness against overvoltage and overtemperature events. External protection - such as gate resistor limiting, TVS diodes, and current sensing - remains necessary for full system reliability.
BUK7240-100A,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 34A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 40mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2293 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 114W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
BUK7240-100A,118 FAQ
1.How can I place an order for BUK7240-100A,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7240-100A,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 BUK7240-100A,118 reliable?
The price and inventory of BUK7240-100A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7240-100A,118 is usually 5 days.
3.What payment methods are accepted for BUK7240-100A,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7240-100A,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7240-100A,118?
BUK7240-100A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7240-100A,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 BUK7240-100A,118?
For technical support, including BUK7240-100A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7240-100A,118 requirements.
6.How does Aetrix verify that BUK7240-100A,118 is sourced from the original manufacturer or authorized distributors?
All BUK7240-100A,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 BUK7240-100A,118 meets industry standards.
7.What is the process for return or replacement of BUK7240-100A,118?
All BUK7240-100A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7240-100A,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 BUK7240-100A,118 part is unused and in its original packaging.
Return procedure for BUK7240-100A,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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