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Nexperia USA Inc. BUK6226-75C,118
- Part No.:
- BUK6226-75C,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
BUK6226-75C,118.pdf
- Description:
- MOSFET N-CH 75V 33A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,336
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Product details
Overview
BUK6226-75C,118 from Nexperia is an AEC-Q101-qualified N-channel TrenchMOS FET in DPAK (SOT428) package, designed for high-reliability automotive power switching. It delivers 33 A continuous drain current at 25 °C mounting base temperature, 75 V drain-source voltage rating, and 24.5 mΩ typical RDS(on) at VGS = 10 V and Tj = 25 °C, enabling robust control of motors, solenoids, and lamps in 12 V/24 V systems.
For engineers reviewing the BUK6226-75C,118 datasheet, BUK6226-75C,118 pinout, BUK6226-75C,118 application, or BUK6226-75C,118 equivalent, this device supports thermally demanding automotive environments up to 175 °C junction temperature, offers logic-level gate drive compatibility, and provides unclamped avalanche energy handling of 42 mJ - critical for start-stop micro-hybrid and electric power steering designs.
Technical Context
This MOSFET employs advanced TrenchMOS technology to achieve low on-resistance and fast switching with QGD = 9.4 nC and tf = 31 ns, supporting efficient PWM-driven loads. Its gate threshold voltage (VGS(th)) ranges from 0.8 V at 175 °C to 3.3 V at −55 °C, ensuring stable turn-on across automotive temperature extremes.
The device integrates a source-drain diode with VSD = 0.8–1.2 V at 25 A and trr = 42 ns, enabling bidirectional current handling in inductive load circuits. Thermal resistance from junction to mounting base is 1.87 K/W, allowing high-power dissipation when mounted on PCB copper planes or heatsinks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 75 V maximum - supports full 24 V automotive battery transients including load dump without breakdown. |
| ID (continuous) | 33 A at Tmb = 25 °C - enables direct driving of high-current solenoids and small DC motors without external heat sinking. |
| RDS(on) | 24.5 mΩ typ at VGS = 10 V, ID = 12 A, Tj = 25 °C - minimizes conduction loss and thermal rise in 12 V/24 V power paths. |
| EAS | 42 mJ non-repetitive avalanche energy - withstands inductive kickback from transmission actuators and EPS motor windings without failure. |
| Tj max | 175 °C - certified for under-hood operation in engine bay and transmission control modules. |
| QGD | 9.4 nC - reduces Miller-induced switching losses and improves gate drive efficiency in high-frequency PWM applications. |
| Rth(j-mb) | 1.87 K/W - enables predictable thermal design when mounted on 2 oz copper with thermal vias to internal layers. |
Pinout & Package
Package: SOT428 (DPAK), plastic single-ended surface-mounted package with 3 leads (one lead cropped); mounting base (mb) is electrically connected to drain and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Controls channel conduction; requires ≤16 V DC or ≤20 V pulsed drive; threshold voltage shifts predictably from 0.8 V to 3.3 V across −55 °C to 175 °C. |
| 2 (D) | Drain | Main high-side power terminal; internally bonded to mounting base for low-inductance, high-current return path and thermal conduction. |
| 3 (S) | Source | Power return node; forms common reference for gate drive and load current sensing; connects to PCB ground plane via low-inductance routing. |
| Mounting Base (mb) | Drain extension / thermal interface | Electrically tied to drain; must be soldered to ≥100 mm² copper area for rated 80 W power dissipation at Tmb = 25 °C. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock - required for ECU, EPS, and transmission control modules. |
| Logic-level gate drive support | Turns on fully with 4.5 V gate drive (RDS(on) ≤40 mΩ), enabling direct interface with MCU GPIOs and low-voltage drivers without level-shifting. |
| 175 °C junction rating | Enables operation in engine compartment locations where ambient exceeds 125 °C, reducing need for remote mounting or forced cooling. |
| Unclamped avalanche ruggedness | 42 mJ energy absorption capability allows safe operation during inductive load turn-off without external snubbers in solenoid and motor control. |
| Low internal inductance | LD = 3.5 nH, LS = 7.5 nH - minimizes voltage overshoot and ringing during fast switching, improving EMI performance in compact layouts. |
Applications
| Electric Power Steering (EPS) | Start-Stop Micro-Hybrid Systems |
|---|---|
|
Use Scenario: Driving three-phase inverter half-bridges for brushless DC assist motors in column-assist and rack-assist EPS modules. IC Role / Device Role / Timing Role: High-side and low-side switching element in H-bridge configuration; handles 20–30 A peak motor currents with <31 ns fall time. Use Value: Low RDS(on) and avalanche ruggedness eliminate need for external freewheeling diodes and reduce thermal derating in space-constrained steering columns. |
Use Scenario: Controlling starter-generator engagement and battery isolation in 12 V micro-hybrid vehicles with automatic engine stop/start functionality. IC Role / Device Role / Timing Role: Bidirectional power switch in starter relay replacement circuit; conducts up to 130 A peak during cranking pulses. Use Value: 130 A peak drain current and 175 °C rating ensure reliable cold-cranking operation even after prolonged under-hood exposure. |
| Transmission Control Solenoids | LED Headlamp Dimming Circuits |
|
Use Scenario: PWM-controlled proportional pressure regulation in 8-speed automatic transmission valve bodies using 12 V solenoid actuators. IC Role / Device Role / Timing Role: High-efficiency, thermally robust switching element delivering precise 1–10 kHz PWM duty cycles to solenoid coils. Use Value: 9.4 nC QGD and 1.87 K/W thermal resistance enable stable 100% duty cycle operation at 85 °C ambient without thermal shutdown. |
Use Scenario: High-side dimming switch for adaptive LED headlamps requiring precise current regulation and overvoltage protection. IC Role / Device Role / Timing Role: Main power switch in constant-current LED driver stage; handles 5–15 A load with fast turn-off to prevent tail-light ghosting. Use Value: 42 mJ avalanche energy and 75 V VDS rating protect against load dump transients up to ISO 7637-2 Pulse 5a (110 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel automotive MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL220N6F7 | 60 V VDS, 220 A ID, TO-220FP package, RDS(on) = 2.2 mΩ @ 10 V - higher current, lower voltage, larger footprint. | Designed for high-power traction inverters; unsuitable for DPAK-restricted PCB layouts or 75 V transient requirements. | Select only if board space permits TO-220FP and system voltage stays ≤60 V; not drop-in for BUK6226-75C,118 in 24 V load-dump environments. |
| IRF3205PBF | 55 V VDS, 110 A ID, TO-220 package, RDS(on) = 8.0 mΩ @ 10 V - no AEC-Q101 qualification, 175 °C rating not validated. | Targeted at industrial motor drives; lacks automotive qualification, making it non-compliant for OEM ECU use. | Acceptable only for non-automotive prototyping; cannot replace BUK6226-75C,118 in production automotive systems requiring AEC-Q101 traceability. |
Compared with STL220N6F7 and IRF3205PBF, the BUK6226-75C,118 uniquely balances 75 V rating, AEC-Q101 compliance, DPAK footprint, and 24.5 mΩ on-resistance - making it the only qualified solution for space-constrained, thermally aggressive 12 V/24 V automotive switching where both voltage margin and qualification are mandatory.
Availability
BUK6226-75C,118 is available at Aetrix Electronics and suitable for electric power steering, start-stop micro-hybrid systems, and transmission control solenoids requiring stable component supply across extended automotive product lifecycles.
Supply support for BUK6226-75C,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 specializing in high-performance, high-reliability discrete and logic devices, with leadership in automotive-qualified MOSFETs and ESD protection.
The BUK6226-75C,118 belongs to Nexperia's TrenchMOS automotive power portfolio, engineered specifically for thermally demanding, safety-critical vehicle subsystems including EPS, transmission, and body control modules.
FAQ
Is BUK6226-75C,118 suitable for logic-level gate drive without a dedicated driver IC?
Yes - it achieves RDS(on) ≤40 mΩ at VGS = 4.5 V and ID = 12 A, enabling direct connection to 3.3 V or 5 V MCU GPIOs in low-duty-cycle applications. For continuous 33 A operation, a gate driver is recommended to ensure full enhancement and minimize switching losses.
What is the maximum allowable mounting base temperature for full-rated 33 A current?
The datasheet specifies 33 A continuous drain current at Tmb = 25 °C. At Tmb = 100 °C, the rated current drops to 23 A per Figure 1. Derating is linear between these points; operation above 100 °C mounting base temperature requires current reduction to maintain junction temperature ≤175 °C.
Does the mounting base require electrical isolation from the PCB ground plane?
No - the mounting base is electrically connected to the drain terminal. It must be soldered directly to a large copper pour tied to the high-side power net, not to ground. Isolation would compromise thermal performance and violate the device's intended layout for 80 W dissipation.
Can BUK6226-75C,118 replace older BUK6226-75B variants in existing designs?
Yes - the BUK6226-75C,118 is a direct replacement for BUK6226-75B with identical pinout, package, and electrical specifications. The "C" suffix denotes updated wafer fabrication and qualification per AEC-Q101 Rev G, offering improved process consistency and long-term reliability without design changes.
BUK6226-75C,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:
- 33A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 29mOhm @ 12A, 10V
- Vgs(th) (Max) @ Id:
- 2.8V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 34 nC @ 10 V
- Vgs (Max):
- ±16V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2000 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 80W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
BUK6226-75C,118 FAQ
1.How can I place an order for BUK6226-75C,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK6226-75C,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 BUK6226-75C,118 reliable?
The price and inventory of BUK6226-75C,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK6226-75C,118 is usually 5 days.
3.What payment methods are accepted for BUK6226-75C,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK6226-75C,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK6226-75C,118?
BUK6226-75C,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK6226-75C,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 BUK6226-75C,118?
For technical support, including BUK6226-75C,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK6226-75C,118 requirements.
6.How does Aetrix verify that BUK6226-75C,118 is sourced from the original manufacturer or authorized distributors?
All BUK6226-75C,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 BUK6226-75C,118 meets industry standards.
7.What is the process for return or replacement of BUK6226-75C,118?
All BUK6226-75C,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK6226-75C,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 BUK6226-75C,118 part is unused and in its original packaging.
Return procedure for BUK6226-75C,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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