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Nexperia USA Inc. BUK7611-55A,118
- Part No.:
- BUK7611-55A,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
BUK7611-55A,118.pdf
- Description:
- MOSFET N-CH 55V 75A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:4,853
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Product details
Overview
BUK7611-55A from Nexperia is a standard-level N-channel TrenchMOS FET in D2PAK (SOT404) package, rated for 55 V VDS, 75 A continuous drain current at Tmb = 25 °C, and 22 mΩ RDS(on) at Tj = 175 °C. It is AEC-Q101 qualified and designed for automotive power switching in thermally demanding environments up to 175 °C junction temperature.
For engineers reviewing the BUK7611-55A datasheet, BUK7611-55A pinout, BUK7611-55A application, or BUK7611-55A equivalent, key selection criteria include its low on-resistance at high temperature, unclamped avalanche energy rating of 211 mJ, and compatibility with standard 10 V gate drive sources in 12 V/24 V load control systems.
Technical Context
This MOSFET uses TrenchMOS technology to achieve low conduction losses and robust thermal performance. Its gate threshold voltage ranges from 1 V at 175 °C to 4.4 V at –55 °C, enabling stable turn-on across automotive temperature extremes.
The device features an integrated source-drain diode with 0.85–1.2 V forward voltage at 25 A and 62 ns reverse recovery time, supporting inductive load commutation. Its 0.9 K/W junction-to-mounting-base thermal resistance enables high-power dissipation when mounted on heatsinks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 55 V maximum drain-source voltage - supports 24 V automotive systems with margin against load dump transients |
| ID (continuous) | 75 A at Tmb = 25 °C - enables high-current motor or lamp switching without external parallel devices |
| RDS(on) | 9–11 mΩ at Tj = 25 °C; 22 mΩ at Tj = 175 °C - ensures low conduction loss even under full thermal stress |
| EAS | 211 mJ non-repetitive avalanche energy - provides robustness against inductive switching surges without snubbers |
| Tj max | 175 °C - allows operation in engine bay or transmission control modules without derating |
| Rth(j-mb) | 0.9 K/W - enables efficient heat transfer to PCB copper or external heatsink via mounting base |
| VGS(th) | 2–4 V typical at 25 °C - ensures reliable turn-on with standard logic-level or microcontroller GPIO drivers |
Pinout & Package
Package: D2PAK (SOT404), plastic single-ended surface-mounted package with isolated mounting base connected to drain. Dimensions per IEC JEDEC outline: 15.8 × 10.3 × 4.5 mm (L × W × H), with 2.54 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal accepting 10 V standard-level drive; 2–4 V threshold enables direct MCU interface |
| 2 (D) | Drain | Main power output terminal; electrically tied to mounting base for low-inductance heatsinking |
| 3 (S) | Source | Power return path; referenced to system ground in low-side switch configurations |
| Mounting base (mb) | Drain connection | Thermally and electrically connected to drain - must be soldered to large copper pour or heatsink for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive safety-critical applications including engine control and body electronics |
| 175 °C junction rating | Enables placement in high-temperature zones (e.g., near engines or inverters) without thermal derating |
| Low RDS(on) at high Tj | 22 mΩ at 175 °C maintains efficiency in sustained high-load conditions like HVAC blower control |
| Unclamped avalanche ruggedness | 211 mJ rating allows safe interruption of inductive currents (e.g., solenoid de-energization) without external protection |
| Standard-level gate drive | Operates fully enhanced with 10 V VGS, compatible with common 5 V/12 V supply rails and discrete driver ICs |
Applications
| Automotive Engine Control | Commercial Vehicle Lighting |
|---|---|
|
Use Scenario: Controlling fuel injector solenoids in diesel engine management units. IC Role / Device Role / Timing Role: Low-side power switch handling 12 V/20 A pulsed loads with 62 ns diode recovery for precise timing. Use Value: 22 mΩ RDS(on) at 175 °C minimizes self-heating during extended duty cycles, ensuring consistent pulse width accuracy. |
Use Scenario: High-intensity headlamp and fog lamp switching in 24 V truck electrical systems. IC Role / Device Role / Timing Role: Main power switch managing 75 A peak inrush and steady-state current with thermal stability. Use Value: 0.9 K/W Rth(j-mb) enables direct heatsink mounting, sustaining 100% duty cycle without thermal shutdown. |
| Industrial Motor Drives | Off-Highway Equipment Actuation |
|
Use Scenario: Driving 24 V DC brush motors in automated conveyor systems. IC Role / Device Role / Timing Role: H-bridge half-bridge switch with integrated body diode for freewheeling current recirculation. Use Value: 211 mJ avalanche energy absorbs back-EMF spikes during rapid deceleration, eliminating need for external TVS diodes. |
Use Scenario: Controlling hydraulic solenoid valves in agricultural tractors operating in ambient temperatures up to 85 °C. IC Role / Device Role / Timing Role: High-reliability load switch meeting AEC-Q101 for mission-critical hydraulics control. Use Value: Q101 qualification and 175 °C rating ensure functional integrity over full vehicle lifetime in harsh environmental exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP75NF55 | 55 V VDS, 75 A ID, but RDS(on) = 12.5 mΩ @ 25 °C and no AEC-Q101 qualification | Targeted at industrial rather than automotive use; lacks automotive qualification and high-Tj RDS(on) data | Select only for cost-sensitive non-automotive designs where 175 °C operation and automotive qualification are not required |
| IRF1404ZPBF | 40 V VDS, 195 A ID, RDS(on) = 3.7 mΩ @ 25 °C, but rated only to 175 °C with no AEC-Q101 validation | Higher current capability but lower voltage rating - unsuitable for 24 V load-dump tolerant designs | Prefer only in 12 V systems requiring ultra-low RDS(on), where automotive qualification and 55 V margin are unnecessary |
Compared with STP75NF55 and IRF1404ZPBF, the BUK7611-55A uniquely combines AEC-Q101 qualification, 55 V rating, and verified 22 mΩ RDS(on) at 175 °C - making it the only option for thermally constrained automotive 24 V power switching where reliability and high-temperature conduction loss are jointly critical.
Availability
BUK7611-55A is available at Aetrix Electronics and suitable for automotive engine control, commercial vehicle lighting, and industrial motor drives requiring stable component supply across extended production lifecycles.
Supply support for BUK7611-55A 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-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
The BUK7611-55A belongs to Nexperia's TrenchMOS automotive power portfolio, engineered specifically for robust, high-efficiency switching in 12 V/24 V automotive subsystems such as body control, powertrain, and chassis electronics.
FAQ
Is BUK7611-55A suitable for high-frequency PWM motor control?
No - its 90 ns rise time and 68 ns fall time limit practical switching frequency to ≤100 kHz. It is optimized for medium-speed power switching (e.g., solenoid actuation, lamp dimming), not high-frequency inverter topologies. For >200 kHz operation, consider Nexperia's NextPower series with faster switching and lower Qg.
Can BUK7611-55A be used in a high-side configuration?
Not directly - its standard-level gate drive requires VGS ≥10 V for full enhancement, which necessitates a floating gate driver for high-side use. The device lacks integrated level-shifting or bootstrap circuitry. Use only in low-side or half-bridge configurations with appropriate gate driver ICs like the NCV8403.
What is the significance of the mounting base being connected to drain?
The mounting base is electrically tied to the drain terminal, enabling low-inductance thermal coupling to a heatsink while requiring isolation of the heatsink from system ground. This design reduces parasitic inductance during switching but mandates insulated mounting hardware in grounded heatsink applications to prevent short circuits.
Does BUK7611-55A require external gate resistors for automotive EMI compliance?
Yes - its 18 ns turn-on delay and fast 90 ns rise time can generate high dv/dt noise. A 10–22 Ω series gate resistor is recommended to dampen ringing and meet CISPR 25 Class 5 radiated emissions limits in automotive harness environments, especially when driving inductive loads.
BUK7611-55A,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 75A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 11mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 3093 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 166W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
BUK7611-55A,118 FAQ
1.How can I place an order for BUK7611-55A,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7611-55A,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 BUK7611-55A,118 reliable?
The price and inventory of BUK7611-55A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7611-55A,118 is usually 5 days.
3.What payment methods are accepted for BUK7611-55A,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7611-55A,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7611-55A,118?
BUK7611-55A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7611-55A,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 BUK7611-55A,118?
For technical support, including BUK7611-55A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7611-55A,118 requirements.
6.How does Aetrix verify that BUK7611-55A,118 is sourced from the original manufacturer or authorized distributors?
All BUK7611-55A,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 BUK7611-55A,118 meets industry standards.
7.What is the process for return or replacement of BUK7611-55A,118?
All BUK7611-55A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7611-55A,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 BUK7611-55A,118 part is unused and in its original packaging.
Return procedure for BUK7611-55A,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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