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Nexperia USA Inc. BUK6246-75C,118
- Part No.:
- BUK6246-75C,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
BUK6246-75C,118.pdf
- Description:
- MOSFET N-CH 75V 22A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,241
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Product details
Overview
BUK6246-75C,118 from Nexperia is an AEC-Q101-qualified N-channel TrenchMOS FET in DPAK (SOT428) package, designed for automotive power switching with 75 V VDS, 22 A ID (Tmb = 25 °C), and 39 mΩ RDS(on) at VGS = 10 V and Tj = 25 °C. It operates up to 175 °C junction temperature and supports standard/logic-level gate drive in electric power steering and start-stop micro-hybrid systems.
For engineers reviewing the BUK6246-75C,118 datasheet, BUK6246-75C,118 pinout, BUK6246-75C,118 application, or BUK6246-75C,118 equivalent, key selection factors include avalanche ruggedness (25 mJ unclamped), thermal resistance (2.52 K/W j-to-mb), gate charge (21.4 nC total), and automotive qualification status - all critical for high-reliability 12 V/24 V vehicle subsystems.
Technical Context
This intermediate-level gate-drive MOSFET uses advanced TrenchMOS technology to deliver low on-resistance and robust switching performance under thermally demanding conditions. Its 175 °C maximum junction temperature and AEC-Q101 qualification confirm suitability for under-hood automotive environments where thermal cycling and long-term reliability are mandatory.
The device features a mounting base (mb) electrically connected to the drain, enabling direct thermal coupling to heatsinks. Its dynamic characteristics - including 6.84 nC QGD, 9.5 ns td(on), and 35 ns tf - support efficient high-frequency switching in motor control and solenoid drivers without excessive gate drive power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 75 V - Maximum drain-source blocking voltage; defines safe operation in 24 V automotive systems with load-dump transients. |
| ID (continuous) | 22 A at Tmb = 25 °C - Continuous current capability with PCB-mounted heatsinking; derates to 16 A at 100 °C mounting base. |
| RDS(on) | 39 mΩ typ @ VGS = 10 V, ID = 10 A, Tj = 25 °C - Low conduction loss enabling <1 W dissipation at 10 A, reducing thermal design burden. |
| QG(tot) | 21.4 nC @ VDS = 60 V, ID = 25 A - Total gate charge determines required gate driver peak current and switching energy efficiency. |
| Rth(j-mb) | 2.52 K/W - Junction-to-mounting-base thermal resistance; enables accurate heatsink sizing when mb is soldered to copper area. |
| EDS(AL)S | 25 mJ unclamped - Non-repetitive avalanche energy rating; supports inductive load switching without external snubbers in solenoid/motor applications. |
| VGS(th) | 1.8–2.8 V @ Tj = 25 °C - Gate threshold range ensures reliable turn-on with 3.3 V or 5 V logic-level drivers while maintaining noise immunity. |
Pinout & Package
Package: SOT428 (DPAK), plastic single-ended surface-mounted package with 3 leads (one lead cropped); mounting base (mb) electrically tied to drain terminal for enhanced thermal transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Gate (G) | Control input; requires ≤16 V DC or ≤20 V pulsed drive; low input capacitance (955 pF Ciss) eases driver selection. |
| 2 | Drain (D) | Main power output terminal; internally connected to mounting base (mb) for direct thermal path to PCB heatsink. |
| 3 | Source (S) | Power return path; referenced to system ground in low-side switch configurations; supports 22 A continuous source current. |
| mb | Mounting Base | Exposed metal pad soldered to PCB copper; electrically identical to Drain (Pin 2); primary thermal interface for heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability across temperature, humidity, and mechanical stress cycles - required for safety-critical vehicle subsystems. |
| 175 °C maximum junction temperature | Enables operation in engine bay locations without derating at elevated ambient temperatures, extending usable lifetime in thermally constrained layouts. |
| Logic- and standard-level gate drive compatible | VGS(th) range (1.8–2.8 V) and low 4.5 V RDS(on) (47.2 mΩ) allow direct interfacing with MCU GPIOs or dedicated gate drivers without level-shifting. |
| Unclamped avalanche energy rating | 25 mJ EDS(AL)S permits safe switching of inductive loads (e.g., solenoids, motors) without external protection diodes in many automotive implementations. |
| TrenchMOS technology | Delivers optimized trade-off between RDS(on), QG, and ruggedness - critical for balancing conduction loss, switching speed, and fault tolerance. |
Applications
| Electric Power Steering (EPS) | Start-Stop Micro-Hybrid Systems |
|---|---|
|
Use Scenario: High-current motor phase switching in column-assist or rack-assist EPS modules. IC Role / Device Role / Timing Role: Low-side N-channel power switch controlling brushless DC motor windings during torque assist. Use Value: 39 mΩ RDS(on) minimizes I²R losses at 20+ A peak currents, reducing thermal stress and enabling compact motor controller designs. |
Use Scenario: Controlled engagement/disengagement of starter motor and alternator in 12 V stop-start systems. IC Role / Device Role / Timing Role: High-reliability power switch managing battery-to-starter and regenerative braking energy paths. Use Value: AEC-Q101 qualification and 175 °C rating ensure stable operation during repeated cold cranking and high-temperature engine restarts. |
| Transmission Control Solenoids | LED Headlamp Dimming Drivers |
|
Use Scenario: PWM-driven hydraulic pressure control in automatic transmission valve bodies. IC Role / Device Role / Timing Role: Fast-switching (35 ns tf) power stage driving 12 V solenoid coils with precise duty-cycle modulation. Use Value: Low QGD (6.84 nC) and fast switching reduce transition losses during high-frequency PWM, improving solenoid response accuracy. |
Use Scenario: High-side or low-side dimming control for adaptive LED headlamps in modern vehicles. IC Role / Device Role / Timing Role: Robust switching element handling 2–5 A LED strings with overvoltage and thermal fault resilience. Use Value: 75 V VDS withstands automotive load-dump transients (ISO 7637-2 Pulse 5a), eliminating need for additional TVS protection. |
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 |
|---|---|---|---|
| STL220N4F7AG | 40 V VDS, 220 A ID, TO-263 package; lower RDS(on) (0.75 mΩ) but incompatible voltage rating. | Targeted at 48 V mild-hybrid systems, not 12/24 V legacy architectures. | Select only if upgrading to 48 V platform and requiring higher current capacity. |
| IRF3205PBF | 55 V VDS, 110 A ID, TO-220; non-AEC-Q101, RDS(on) = 8 mΩ, no avalanche rating specified. | Suitable for industrial motor drives but lacks automotive qualification and transient robustness. | Acceptable for non-safety-critical 12 V prototypes; avoid in production automotive ECUs. |
Compared with STL220N4F7AG and IRF3205PBF, BUK6246-75C,118 uniquely balances 75 V rating, AEC-Q101 compliance, 22 A capability, and 25 mJ avalanche energy - making it the only drop-in solution for thermally constrained, safety-aware 12 V/24 V automotive power switching without redesigning gate drive or thermal management.
Availability
BUK6246-75C,118 is available at Aetrix Electronics and suitable for electric power steering, start-stop micro-hybrid control, and transmission solenoid actuation requiring stable component supply across extended automotive production lifecycles.
Supply support for BUK6246-75C,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 focused on high-volume, high-reliability discrete, logic, and MOSFET solutions, with leadership in automotive and industrial power management.
The BUK6246-75C,118 belongs to Nexperia's TrenchMOS automotive-qualified power MOSFET product line, engineered specifically for robust, thermally efficient switching in 12 V and 24 V vehicle subsystems where AEC-Q101 compliance and long-term stability are mandatory.
FAQ
Is BUK6246-75C,118 suitable for high-frequency PWM motor control?
Yes - with 9.5 ns turn-on delay, 35 ns fall time, and 21.4 nC total gate charge, it supports PWM frequencies up to 100 kHz in brushed DC and BLDC motor phases. Its low QGD (6.84 nC) minimizes Miller-induced shoot-through risk, and the 175 °C rating maintains performance under sustained thermal load.
What is the role of the mounting base (mb) in thermal management?
The mounting base is an exposed copper pad electrically connected to the drain (Pin 2) and serves as the primary thermal conduction path from die to PCB. With Rth(j-mb) = 2.52 K/W, soldering mb to ≥200 mm² of 2 oz copper significantly lowers junction temperature - critical for sustaining 22 A continuous current in automotive under-hood environments.
Does BUK6246-75C,118 require a gate resistor for automotive EMI compliance?
A gate resistor (typically 10–47 Ω) is recommended to dampen ringing caused by parasitic inductance (LD = 3.5 nH, LS = 7.5 nH) and meet CISPR 25 Class 5 radiated emissions limits. The device's 6.84 nC QGD and 955 pF Ciss make it responsive to controlled slew-rate tuning via external RG without compromising switching efficiency.
Can BUK6246-75C,118 replace older MOSFETs like BUZ70 in automotive designs?
Yes - it offers superior specs: 75 V vs. 50 V VDS, AEC-Q101 qualification vs. commercial grade, 39 mΩ vs. ~70 mΩ RDS(on), and 25 mJ avalanche rating vs. none. Pin-compatible in DPAK footprint, but verify gate drive strength and thermal layout due to higher current density and tighter SOA margins at elevated temperature.
BUK6246-75C,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:
- 22A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 46mOhm @ 10A, 10V
- Vgs(th) (Max) @ Id:
- 2.8V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 21.4 nC @ 10 V
- Vgs (Max):
- ±16V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1280 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 60W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
BUK6246-75C,118 FAQ
1.How can I place an order for BUK6246-75C,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK6246-75C,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 BUK6246-75C,118 reliable?
The price and inventory of BUK6246-75C,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK6246-75C,118 is usually 5 days.
3.What payment methods are accepted for BUK6246-75C,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK6246-75C,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK6246-75C,118?
BUK6246-75C,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK6246-75C,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 BUK6246-75C,118?
For technical support, including BUK6246-75C,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK6246-75C,118 requirements.
6.How does Aetrix verify that BUK6246-75C,118 is sourced from the original manufacturer or authorized distributors?
All BUK6246-75C,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 BUK6246-75C,118 meets industry standards.
7.What is the process for return or replacement of BUK6246-75C,118?
All BUK6246-75C,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK6246-75C,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 BUK6246-75C,118 part is unused and in its original packaging.
Return procedure for BUK6246-75C,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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