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Nexperia USA Inc. BUK7225-55A,118
- Part No.:
- BUK7225-55A,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
BUK7225-55A,118.pdf
- Description:
- N-CHANNEL TRENCHMOS STANDARD LEV
- Quantity:
- Payment:
- Shipping:
Inventory:14,196
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Product details
Overview
BUK7225-55A,118 from Nexperia is an AEC-Q101-qualified N-channel TrenchMOS FET in DPAK (SOT428) package, designed for automotive-critical 12 V/24 V power switching. It delivers 43 A continuous drain current at 25 °C mounting base temperature, 50 mΩ RDS(on) at 175 °C junction temperature, and 123 mJ unclamped avalanche energy - enabling robust operation in motor, lamp, and solenoid control circuits.
For engineers reviewing the BUK7225-55A datasheet, BUK7225-55A pinout, BUK7225-55A application, or BUK7225-55A equivalent, this device supports thermally demanding automotive environments with its 175 °C rated junction, standard-level gate drive compatibility (VGS(th) = 2–4 V), and low conduction losses - critical for high-reliability load switching where thermal derating and avalanche ruggedness are design priorities.
Technical Context
This standard-level MOSFET uses TrenchMOS technology to achieve low RDS(on) while maintaining gate drive compatibility with 10 V logic sources. Its internal drain and source inductances (LD = 2.5 nH, LS = 7.5 nH) are optimized for fast switching with minimal ringing in automotive power stages.
The device features a monolithic source-drain diode with 0.85–1.2 V forward voltage at 20 A and 49 ns reverse recovery time, supporting freewheeling in inductive loads. Thermal resistance from junction to mounting base is 1.6 K/W, enabling high-power dissipation when mounted on thermally enhanced PCB copper areas.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 55 V maximum - supports 12 V/24 V automotive systems with margin against load-dump transients. |
| ID (continuous) | 43 A at Tmb = 25 °C - enables high-current switching without external heatsinking in moderate-duty cycles. |
| RDS(on) | 21–25 mΩ at 25 °C / 50 mΩ at 175 °C - ensures low conduction loss across full operating temperature range. |
| EAS | 123 mJ unclamped avalanche energy - provides intrinsic ruggedness against inductive kickback without external snubbers. |
| Tj max | 175 °C - allows operation in under-hood environments and simplifies thermal design for long-term reliability. |
| Ciss | 980–1310 pF - balances switching speed and gate drive requirements for 10 V logic-compatible drivers. |
| QG | ~35 nC typical (from Fig 10) - enables efficient turn-on with low gate charge, reducing driver power loss. |
Pinout & Package
Package: DPAK (SOT428), plastic single-ended surface-mounted package with 3 leads (one lead cropped); mounting base (mb) electrically connected to drain and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Controls channel conduction; requires ≥2 V threshold and ≤20 V absolute max; standard-level drive compatible. |
| 2 (D) | Drain | Main high-side power terminal; internally bonded to mounting base for low-inductance, high-current return path. |
| 3 (S) | Source | Power return node; referenced for gate drive; forms source-drain body diode cathode. |
| Mounting Base (mb) | Drain extension / thermal interface | Electrically tied to drain; provides primary thermal conduction path to PCB copper; must be soldered for rated Ptot. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive safety-critical applications including engine control, chassis, and body electronics. |
| 175 °C junction rating | Enables uninterrupted operation in under-hood locations without thermal shutdown or parameter drift. |
| Low RDS(on) over temperature | 50 mΩ at 175 °C ensures stable power loss and predictable thermal behavior during sustained high-load conditions. |
| Unclamped avalanche capability | 123 mJ energy rating allows safe handling of inductive energy without external protection components. |
| Standard-level gate drive | Operates fully enhanced with 10 V gate-source voltage - compatible with common microcontroller GPIO and dedicated gate drivers. |
Applications
| Automotive Body Control Module (BCM) | 12 V DC Motor Driver |
|---|---|
|
Use Scenario: Switching headlamps, interior lighting, and window lift motors in modern BCMs. IC Role / Device Role / Timing Role: High-side load switch controlling resistive and inductive loads up to 43 A peak. Use Value: Eliminates need for external flyback diodes due to integrated avalanche-rated body diode and 175 °C thermal margin. |
Use Scenario: Driving brushed DC fans, radiator cooling pumps, and HVAC blower motors. IC Role / Device Role / Timing Role: Low-loss power stage delivering continuous 25–40 A with minimal voltage drop and thermal rise. Use Value: 21 mΩ RDS(on) at 25 °C reduces I²R losses by >30% vs. legacy MOSFETs, improving system efficiency and battery runtime. |
| 24 V Commercial Vehicle Solenoid Control | Industrial Power Distribution Unit (PDU) |
|
Use Scenario: Controlling fuel injectors, ABS solenoids, and transmission shift actuators in trucks and buses. IC Role / Device Role / Timing Role: Fast-switching, high-ruggedness switch handling repetitive inductive turn-off spikes. Use Value: 123 mJ EAS withstands repeated solenoid de-energization events without degradation or failure. |
Use Scenario: Remote-controlled power switching for industrial sensors, PLC I/O modules, and fieldbus nodes. IC Role / Device Role / Timing Role: Thermally robust discrete switch supporting wide ambient temperature ranges (-40 to +125 °C). Use Value: 1.6 K/W Rth(j-mb) enables direct PCB copper heatsinking - no mechanical heatsink required for <30 W dissipation. |
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 |
|---|---|---|---|
| STL135N5LF6AG | 60 V VDS, 135 A ID, 3.5 mΩ RDS(on) @ 25 °C - higher current, lower RDS(on), but requires 4.5 V gate drive. | Targeted at high-power traction inverters and heavy-duty solenoids - not drop-in for standard-level 10 V gate systems. | Select only if gate drive voltage is ≥4.5 V and higher current density is required; verify layout for increased dI/dt. |
| IRF3205PBF | 55 V VDS, 110 A ID, 8 mΩ RDS(on) @ 25 °C - non-automotive grade, no AEC-Q101, 150 °C Tj max. | General-purpose industrial switching only; unsuitable for automotive safety-critical functions or extended high-temp operation. | Acceptable for cost-sensitive non-automotive designs where AEC qualification and 175 °C rating are not required. |
Compared with STL135N5LF6AG and IRF3205PBF, BUK7225-55A uniquely combines AEC-Q101 compliance, 175 °C operation, and standard-level gate drive in a DPAK package - making it the only choice for thermally constrained, safety-certified 12/24 V automotive switching where gate voltage is fixed at 10 V.
Availability
BUK7225-55A,118 is available at Aetrix Electronics and suitable for automotive body control modules, 12 V/24 V motor drives, and industrial power distribution units requiring stable component supply, long lifecycle support, and traceable sourcing.
Supply support for BUK7225-55A,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 essential semiconductors - high-volume, high-reliability devices for automotive, industrial, and consumer markets.
BUK7225-55A belongs to Nexperia's TrenchMOS automotive power portfolio, engineered specifically for AEC-Q101-compliant, high-temperature, high-ruggedness switching in 12 V/24 V vehicle electrical architectures.
FAQ
Is BUK7225-55A,118 qualified for automotive use?
Yes - it is fully AEC-Q101 qualified and designed for automotive-critical applications including body control, lighting, and powertrain auxiliary systems. Its 175 °C junction rating, 123 mJ avalanche energy, and rigorous stress testing meet automotive reliability standards for under-hood deployment.
What is the recommended gate resistor value for switching at 20 kHz?
A 10 Ω external gate resistor is specified in the datasheet for turn-on/turn-off timing measurements (td(on) = 11 ns, tf = 31 ns). For 20 kHz PWM in motor control, this value balances switching loss and EMI; reduce to 4.7 Ω if faster edge rates are needed, provided gate driver can sink/source ≥3.5 A peak.
Can BUK7225-55A be used in high-side configuration?
Yes - its standard-level gate drive (VGS(th) = 2–4 V, fully enhanced at 10 V) and drain-connected mounting base make it suitable for high-side switching. Use a dedicated high-side gate driver (e.g., TC4427 or LM5113) to ensure proper VGS referencing and bootstrap charging.
Does the mounting base require thermal vias or copper pour?
Yes - the 1.6 K/W Rth(j-mb) assumes full-solder connection of the mounting base to ≥100 mm² of 2 oz copper on the PCB. At least six 0.3 mm thermal vias per cm² beneath the base are recommended to maintain Tj ≤175 °C at 43 A continuous current.
BUK7225-55A,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Bulk
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 43A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 25mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1310 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 94W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
BUK7225-55A,118 FAQ
1.How can I place an order for BUK7225-55A,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7225-55A,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 BUK7225-55A,118 reliable?
The price and inventory of BUK7225-55A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7225-55A,118 is usually 5 days.
3.What payment methods are accepted for BUK7225-55A,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7225-55A,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7225-55A,118?
BUK7225-55A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7225-55A,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 BUK7225-55A,118?
For technical support, including BUK7225-55A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7225-55A,118 requirements.
6.How does Aetrix verify that BUK7225-55A,118 is sourced from the original manufacturer or authorized distributors?
All BUK7225-55A,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 BUK7225-55A,118 meets industry standards.
7.What is the process for return or replacement of BUK7225-55A,118?
All BUK7225-55A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7225-55A,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 BUK7225-55A,118 part is unused and in its original packaging.
Return procedure for BUK7225-55A,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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