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Nexperia USA Inc. BUK7226-75A,118
- Part No.:
- BUK7226-75A,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
BUK7226-75A,118.pdf
- Description:
- MOSFET N-CH 75V 45A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:4,752
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Product details
Overview
BUK7226-75A,118 from Nexperia is a standard-level N-channel TrenchMOS FET in DPAK (SOT428) package, rated for 75 V VDS, 45 A continuous drain current at Tmb = 25 °C, and 175 °C junction temperature. It delivers 22 mΩ RDS(on) at VGS = 10 V and ID = 25 A, Tj = 25 °C, and is AEC-Q101 qualified for automotive critical loads including solenoids, lamps, and 12–42 V power switching.
For engineers reviewing the BUK7226-75A,118 datasheet, BUK7226-75A,118 pinout, BUK7226-75A,118 application, or BUK7226-75A,118 equivalent, key selection criteria include its bondwire-limited 45 A rating, 1 K/W Rth(j-mb), avalanche energy of 215 mJ, and compatibility with standard-level gate drive in 12 V/24 V/42 V automotive systems.
Technical Context
This device uses Nexperia's General Purpose Automotive (GPA) TrenchMOS technology to achieve low on-resistance and robust avalanche ruggedness. Its gate threshold voltage ranges from 1 V (Tj = 175 °C) to 4.4 V (Tj = −55 °C), ensuring reliable turn-on across automotive temperature extremes.
The integrated source-drain diode exhibits VSD = 0.85 V at IS = 25 A and Tj = 25 °C, with reverse recovery time trr = 53 ns and Qr = 144 nC under defined conditions - enabling use in inductive load switching without external freewheeling diodes in many cases.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 75 V maximum drain-source voltage - supports 42 V automotive systems with margin against transients. |
| ID (continuous) | 45 A at Tmb = 25 °C - capped by bondwire limit, not silicon capability. |
| RDS(on) | 22 mΩ typical at VGS = 10 V, ID = 25 A, Tj = 25 °C - enables low conduction loss in high-current 12–24 V loads. |
| EAS | 215 mJ non-repetitive avalanche energy - withstands unclamped inductive switching events in motor/solenoid drives. |
| Rth(j-mb) | 1 K/W thermal resistance from junction to mounting base - requires direct PCB copper thermal pad for effective heat dissipation. |
| QG(tot) | 48 nC total gate charge - determines gate driver strength requirement for <61 ns td(off) and <41 ns tf. |
| VGS(th) | 2–4 V typical at Tj = 25 °C - ensures compatibility with standard 5 V or 3.3 V logic-level gate drivers when used with appropriate margin. |
Pinout & Package
Package: DPAK (SOT428), plastic single-ended surface-mounted package with 3 leads (one lead cropped); mounting base (mb) electrically connected to drain.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Controls channel conduction; requires ≥10 V for full enhancement; gate leakage ≤100 nA at ±20 V. |
| 2 (D) | Drain | Main high-side current path; internally bonded to mounting base for thermal and electrical connection to heatsink/PCB pad. |
| 3 (S) | Source | Reference node for gate drive and current return; also serves as cathode of integrated body diode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive safety-critical applications per stress test requirements including temperature cycling, HTRB, and ESD. |
| 175 °C rated junction temperature | Enables operation in under-hood environments where ambient temperatures exceed 125 °C with proper thermal design. |
| Low RDS(on) × QG figure-of-merit | 22 mΩ × 48 nC = 1056 mΩ·nC - balances conduction and switching losses in PWM-controlled 12–42 V loads. |
| Integrated source-drain diode | VSD = 0.85 V at 25 A, trr = 53 ns - reduces bill-of-materials count in relay replacement and solenoid drive circuits. |
| Standard-level gate drive | VGS(th) ≤4 V at 25 °C and RDS(on) specified at VGS = 10 V - compatible with common microcontroller GPIO or dedicated high-side drivers. |
Applications
| Automotive Lamp Control | 12 V Solenoid Actuation |
|---|---|
|
Use Scenario: Switching halogen or LED headlamps, fog lamps, and interior lighting in modern vehicle body control modules. IC Role / Device Role / Timing Role: High-side power switch controlling load current up to 45 A with fast turn-off (<100 ns) to prevent lamp filament surge damage. Use Value: Eliminates mechanical relays; enables PWM dimming via gate control while maintaining AEC-Q101 reliability and thermal stability at 175 °C. |
Use Scenario: Driving fuel injectors, door lock actuators, and HVAC flap solenoids in 12 V chassis networks. IC Role / Device Role / Timing Role: Inductive load switch with integrated freewheeling diode and 215 mJ avalanche energy rating to absorb back-EMF during de-energization. Use Value: Reduces external component count and PCB area versus discrete MOSFET + diode solutions while meeting ISO 7637-2 pulse immunity requirements. |
| 42 V Mild Hybrid Starter-Generator Interface | Industrial 24 V DC Motor Control |
|
Use Scenario: High-current pre-charge and main power switching in 42 V mild hybrid architectures during engine start-stop transitions. IC Role / Device Role / Timing Role: Main power FET handling peak currents up to 215 A (pulsed) and sustaining 38 A continuous at Tmb = 100 °C. Use Value: Supports higher system voltage than 12 V/24 V designs while retaining compatibility with existing standard-level gate drivers and thermal management practices. |
Use Scenario: Controlling brushed DC motors in industrial automation, such as conveyor drives and valve positioners operating from 24 V DC supplies. IC Role / Device Role / Timing Role: Low-RDS(on) power switch enabling efficient PWM speed control with minimal I²R heating at 25–45 A load currents. Use Value: Delivers 22 mΩ on-resistance at room temperature and maintains <54 mΩ at 175 °C - ensuring stable torque delivery across wide ambient temperature ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel automotive power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL135N7LF6AG | 75 V VDS, 135 A ID, 3.5 mΩ RDS(on), TSDFN8 package, logic-level gate (VGS(th) = 1.5–2.5 V). | Higher current and lower RDS(on); requires PCB layout redesign for 8-pin thermal package and logic-level drive optimization. | Select when >45 A continuous current or <10 mΩ on-resistance is required; verify gate drive compatibility and thermal interface. |
| ON Semiconductor NTMFS5C670NL | 60 V VDS, 100 A ID, 3.2 mΩ RDS(on), SO-8FL package, AEC-Q101 qualified, VGS(th) = 1.8–2.8 V. | Lower voltage rating (60 V vs. 75 V); unsuitable for 42 V systems with high transient margins; smaller footprint but lower thermal mass. | Prefer for cost-sensitive 12 V/24 V applications where 60 V rating suffices and space-constrained layouts demand SO-8FL. |
Compared with STL135N7LF6AG and NTMFS5C670NL, BUK7226-75A,118 offers optimal balance of 75 V rating, 45 A bondwire-limited current, standard-level gate compatibility, and proven DPAK thermal performance in automotive under-hood environments - making it ideal for legacy and new 12–42 V high-reliability switching where pin-for-pin upgrade is not required.
Availability
BUK7226-75A,118 is available at Aetrix Electronics and suitable for automotive lamp control, 12 V solenoid actuation, and 42 V mild hybrid starter-generator interface requiring stable component supply and long-term automotive-grade availability.
Supply support for BUK7226-75A,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 essential semiconductors - delivering discrete, logic, and MOSFET solutions optimized for automotive, industrial, and consumer applications.
The BUK7226-75A belongs to Nexperia's General Purpose Automotive (GPA) TrenchMOS product line, engineered specifically for robust, cost-effective power switching in AEC-Q101-compliant automotive subsystems including body electronics and power distribution.
FAQ
What is the maximum continuous drain current for BUK7226-75A,118 at 100 °C mounting base temperature?
The maximum continuous drain current is 38 A at Tmb = 100 °C and VGS = 10 V, as specified in Table 4 (Limiting Values). This derating reflects thermal constraints of the DPAK package and bondwire current capacity, not silicon limitation - the device remains fully functional within its 175 °C junction temperature limit.
Is BUK7226-75A,118 suitable for high-frequency PWM motor control?
Yes - with td(on) = 14 ns, tr = 66 ns, td(off) = 61 ns, and tf = 41 ns at VDS = 30 V and RG(ext) = 10 Ω, it supports PWM frequencies up to several hundred kHz. However, switching losses must be evaluated using QG(tot) = 48 nC and Ciss = 1789–2385 pF to ensure thermal stability at target duty cycle and frequency.
Does BUK7226-75A,118 require an external flyback diode when driving inductive loads?
No - it integrates a source-drain diode with VSD = 0.85 V at 25 A and trr = 53 ns, sufficient for most automotive solenoid and lamp applications. For high-energy inductive loads or strict EMI requirements, an external Schottky diode may still be added to reduce voltage overshoot and improve recovery behavior.
How is thermal performance affected by PCB copper area in DPAK mounting?
Thermal resistance from junction to mounting base is fixed at 1 K/W, but junction-to-ambient performance depends heavily on PCB copper area. With minimum footprint on FR4, Rth(j-a) is 70 K/W; increasing copper area (especially thermal vias under the mounting base) can reduce this significantly - e.g., 10 cm² of 2 oz copper lowers Rth(j-a) to ~25 K/W, enabling higher sustained power dissipation.
BUK7226-75A,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):
- 75 V
- Current - Continuous Drain (Id) @ 25°C:
- 45A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 26mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 48 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2385 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 158W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
BUK7226-75A,118 FAQ
1.How can I place an order for BUK7226-75A,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7226-75A,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 BUK7226-75A,118 reliable?
The price and inventory of BUK7226-75A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7226-75A,118 is usually 5 days.
3.What payment methods are accepted for BUK7226-75A,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7226-75A,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7226-75A,118?
BUK7226-75A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7226-75A,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 BUK7226-75A,118?
For technical support, including BUK7226-75A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7226-75A,118 requirements.
6.How does Aetrix verify that BUK7226-75A,118 is sourced from the original manufacturer or authorized distributors?
All BUK7226-75A,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 BUK7226-75A,118 meets industry standards.
7.What is the process for return or replacement of BUK7226-75A,118?
All BUK7226-75A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7226-75A,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 BUK7226-75A,118 part is unused and in its original packaging.
Return procedure for BUK7226-75A,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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