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Nexperia USA Inc. BUK9226-75A,118
- Part No.:
- BUK9226-75A,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
BUK9226-75A,118.pdf
- Description:
- MOSFET N-CH 75V 45A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:7,292
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Product details
Overview
BUK9226-75A,118 from Nexperia is a logic-level N-channel TrenchMOS FET in SOT428 (DPAK) package, rated for 75 V drain-source voltage, 45 A continuous drain current at 25 °C mounting base temperature, and 175 °C junction operation. It delivers 29 mΩ RDS(on) at VGS = 4.5 V and ID = 25 A, enabling direct drive from 3.3 V/5 V microcontrollers in automotive power switching applications such as solenoid control and lamp drivers.
For engineers reviewing the BUK9226-75A,118 datasheet, BUK9226-75A,118 pinout, BUK9226-75A,118 application, or BUK9226-75A,118 equivalent, key selection criteria include AEC-Q101 qualification, 1.3 K/W junction-to-mounting-base thermal resistance, unclamped avalanche energy rating of 120 mJ, and compatibility with thermally demanding 12 V/24 V automotive loads.
Technical Context
This device implements a trench-gate MOSFET structure optimized for low conduction loss and robust gate drive compatibility. Its threshold voltage range (1.0–2.0 V at 25 °C) and guaranteed turn-on at 4.5 V ensure reliable switching with standard logic-level outputs.
Thermal design centers on the exposed mounting base (connected to drain), which provides a low 1.3 K/W Rth(j-mb) path. The internal source/drain inductances (LS = 7.5 nH, LD = 2.5 nH) and 2340 pF Ciss support fast switching while maintaining EMI control in high-current automotive circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 75 V - Maximum blocking voltage compatible with 42 V automotive systems and transient overvoltage tolerance. |
| ID (continuous) | 45 A at Tmb = 25 °C - Supports high-current DC loads like starter relays and HVAC blowers without external heatsinking at ambient conditions. |
| RDS(on) | 29 mΩ at VGS = 4.5 V, ID = 25 A, Tj = 25 °C - Enables <1.8 W conduction loss at 25 A, reducing thermal stress in compact modules. |
| EAS | 120 mJ unclamped avalanche energy - Withstands inductive kickback from solenoids and motors without external snubbers in fault conditions. |
| Tj max | 175 °C - Qualified for under-hood environments including engine control units and transmission control modules. |
| Rth(j-mb) | 1.3 K/W - Direct thermal path to PCB copper or heatsink enables efficient power dissipation in space-constrained automotive layouts. |
| Ciss | 2340 pF typical - Balances switching speed and gate drive strength requirements for 5 V MCU-compatible operation. |
Pinout & Package
Package: SOT428 (DPAK), plastic single-ended surface-mounted package with exposed mounting base electrically connected to drain terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control input requiring ≤10 V drive; threshold voltage 1.0–2.0 V ensures turn-on with 3.3 V/5 V logic sources. |
| 2 (D) | Drain | Main high-side power path; internally bonded to mounting base for low-inductance, high-current routing and thermal conduction. |
| 3 (S) | Source | Power return node; referenced to system ground in low-side switch configurations; carries full load current. |
| Mounting Base (mb) | Drain Connection | Exposed copper pad soldered to PCB thermal plane; provides primary thermal path and structural mechanical anchoring. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive safety-critical applications including engine management and body electronics. |
| Logic-level gate drive | Guaranteed RDS(on) ≤26 mΩ at VGS = 5 V, eliminating need for gate driver ICs in 5 V MCU systems. |
| 175 °C junction rating | Enables operation in under-hood locations where ambient temperatures exceed 125 °C without derating. |
| Low RDS(on) × Qg product | 29 mΩ RDS(on) with 50 nC total gate charge supports efficient high-frequency PWM in motor control. |
| Unclamped avalanche ruggedness | 120 mJ EAS allows safe operation during inductive load turn-off without external protection components. |
Applications
| Engine Control Solenoid Driver | Automotive Headlamp Switching |
|---|---|
|
Use Scenario: Driving fuel injector or EGR valve solenoids in engine control units with pulsed 12 V loads up to 30 A. IC Role / Device Role / Timing Role: Low-side power switch controlling coil energization/de-energization with precise timing via MCU PWM. Use Value: 120 mJ avalanche energy absorbs inductive flyback without snubber, and 175 °C rating sustains operation near hot exhaust manifolds. |
Use Scenario: High-current switching of LED or halogen headlamps in vehicle lighting modules with thermal cycling. IC Role / Device Role / Timing Role: High-side or low-side load switch activated by body control module (BCM) for on/off and dimming control. Use Value: 29 mΩ RDS(on) limits power loss to <2.6 W at 30 A, reducing thermal footprint in sealed lamp housings. |
| 12 V/24 V HVAC Blower Motor | Transmission Control Valve Driver |
|
Use Scenario: PWM-controlled blower motor in passenger cabin HVAC systems operating continuously at 25–40 A. IC Role / Device Role / Timing Role: Power stage transistor in half-bridge or high-side configuration delivering variable speed control. Use Value: 1.3 K/W Rth(j-mb) enables direct PCB copper cooling, eliminating discrete heatsinks in space-limited dash modules. |
Use Scenario: Driving electro-hydraulic pressure control valves in automatic transmissions with rapid duty-cycle changes. IC Role / Device Role / Timing Role: Precision current sink regulating solenoid current for hydraulic line pressure modulation. Use Value: Stable RDS(on) across -40 °C to 175 °C ensures consistent valve response despite wide under-hood temperature swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel logic-level power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL220N4F7AG | 40 V VDS, 220 A ID, 0.75 mΩ RDS(on) - higher current, lower voltage, different package (PowerFLAT 5x6). | Targeted at 12 V battery management and high-power DC-DC converters, not 42 V automotive systems. | Select only if system voltage ≤40 V and board layout accommodates PowerFLAT footprint and higher peak current capability. |
| IRF3205PBF | 55 V VDS, 110 A ID, 8.0 mΩ RDS(on) - higher RDS(on) at 5 V gate drive (12 mΩ), TO-220 package. | Lacks AEC-Q101 qualification and 175 °C rating; suited for industrial non-automotive use. | Acceptable for cost-sensitive 12 V industrial motor drives but not for automotive production due to qualification gap. |
Compared with STL220N4F7AG and IRF3205PBF, the BUK9226-75A,118 uniquely combines 75 V rating, AEC-Q101 compliance, and 4.5 V logic-level drive in DPAK-making it the only drop-in solution for thermally constrained 42 V automotive solenoid and lamp switching.
Availability
BUK9226-75A,118 is available at Aetrix Electronics and suitable for automotive engine control, body electronics, and HVAC systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BUK9226-75A,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 for automotive, industrial, and consumer markets.
This device belongs to Nexperia's Automotive Logic-Level Power MOSFET product line, engineered specifically for robust, thermally efficient switching in 12 V/24 V/42 V automotive subsystems where AEC-Q101 compliance and high-temperature operation are mandatory.
FAQ
Is BUK9226-75A,118 suitable for high-side switching configurations?
Yes - its 75 V VDS rating and 175 °C junction temperature allow use in high-side configurations driving 12 V/24 V loads. The mounting base is tied to drain, so PCB layout must isolate the thermal pad from ground planes when used in high-side topology. Gate drive must provide sufficient voltage margin above source potential.
What is the maximum continuous drain current at 100 °C mounting base temperature?
Per the datasheet limiting values table, the maximum continuous drain current is 32 A at Tmb = 100 °C and VGS = 5 V. This reflects thermal derating due to reduced heat dissipation capacity at elevated mounting base temperatures.
Does BUK9226-75A,118 include integrated gate protection?
No - it does not integrate gate Zener clamping or series resistance. External gate protection (e.g., 10–22 Ω series resistor and 12 V Zener to source) is recommended for systems with high dv/dt or ESD risk, especially in automotive harness environments.
How does RDS(on) change with junction temperature?
RDS(on) increases with temperature: at VGS = 5 V and ID = 25 A, it rises from 22.1 mΩ at 25 °C to 54.6 mΩ at 175 °C. Figure 13 shows normalized RDS(on) factor of ~2.5× increase over that range, critical for worst-case conduction loss calculation.
BUK9226-75A,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):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 24.6mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 2V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 3120 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
BUK9226-75A,118 FAQ
1.How can I place an order for BUK9226-75A,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK9226-75A,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 BUK9226-75A,118 reliable?
The price and inventory of BUK9226-75A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9226-75A,118 is usually 5 days.
3.What payment methods are accepted for BUK9226-75A,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9226-75A,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK9226-75A,118?
BUK9226-75A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK9226-75A,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 BUK9226-75A,118?
For technical support, including BUK9226-75A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9226-75A,118 requirements.
6.How does Aetrix verify that BUK9226-75A,118 is sourced from the original manufacturer or authorized distributors?
All BUK9226-75A,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 BUK9226-75A,118 meets industry standards.
7.What is the process for return or replacement of BUK9226-75A,118?
All BUK9226-75A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9226-75A,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 BUK9226-75A,118 part is unused and in its original packaging.
Return procedure for BUK9226-75A,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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