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Nexperia USA Inc. BUK7Y43-60EX
- Part No.:
- BUK7Y43-60EX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- SC-100, SOT-669
- Datasheet:
-
BUK7Y43-60EX.pdf
- Description:
- MOSFET N-CH 60V 22A LFPAK56
- Quantity:
- Payment:
- Shipping:
Inventory:986
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Product details
Overview
BUK7Y43-60EX from Nexperia is a standard-level N-channel MOSFET rated for 60 V drain-source voltage, 43 mΩ RDS(on) at 10 VGS and 5 A, housed in LFPAK56 (SOT669) package, qualified to AEC-Q101 for automotive power switching in transmission control and solenoid drivers.
For engineers reviewing the BUK7Y43-60EX datasheet, BUK7Y43-60EX pinout, BUK7Y43-60EX application, or BUK7Y43-60EX equivalent, this device offers verified repetitive avalanche rating, 175 °C junction temperature capability, true standard-level gate drive (>1 V VGS(th) at 175 °C), and thermally robust LFPAK56 mounting base interface.
Technical Context
This MOSFET employs TrenchMOS technology to achieve low on-resistance with stable threshold voltage across temperature. Its standard-level gate enables direct drive from 5 V microcontrollers without level-shifting, while its 3.33 K/W junction-to-mounting-base thermal resistance supports high-power density layouts in constrained automotive modules.
The device features integrated source-drain diode with 18 ns reverse recovery time and 13 nC recovered charge, enabling efficient freewheeling in inductive load switching. Repetitive avalanche ruggedness (12 mJ unclamped) and 87 A peak drain current support transient overloads in motor and solenoid control circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 60 V - Maximum continuous drain-source blocking voltage compatible with 12 V automotive systems with load-dump transients. |
| RDS(on) | 43 mΩ max @ 10 VGS, 5 A, 25 °C - Enables <1 W conduction loss at 5 A, reducing heatsink requirements in space-constrained ECUs. |
| ID | 22 A @ Tmb = 25 °C - Continuous current rating defined at mounting base temperature, supporting high-current solenoid actuation. |
| Ptot | 45 W @ Tmb = 25 °C - Total power dissipation limit tied directly to PCB copper area and thermal pad design. |
| VGS(th) | >1 V @ Tj = 175 °C - Ensures reliable turn-on under worst-case hot-cranking conditions without gate driver assistance. |
| QGD | 3.7 nC typ - Low gate-drain charge minimizes Miller-induced switching delay and improves EMI behavior in high-frequency PWM. |
| Rth(j-mb) | 3.33 K/W - Thermal resistance from junction to mounting base enables accurate thermal modeling using PCB copper as heatsink. |
Pinout & Package
LFPAK56 (SOT669) is a 4-lead surface-mount plastic package with exposed mounting base connected to drain, optimized for high-current automotive applications requiring low thermal resistance and mechanical robustness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Source (S) | Three parallel source terminals reduce bond-wire inductance and improve current sharing in high-di/dt switching. |
| 4 | Gate (G) | Single gate input with 10.4 nC total gate charge, compatible with standard 5 V logic-level drivers. |
| Mounting base | Drain (D) | Exposed copper pad electrically connected to drain; serves as primary thermal path and high-current return path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and humidity testing per Q101-004/007. |
| Repetitive avalanche rating | 12 mJ unclamped energy handling at 22 A, enabling robust operation during inductive flyback without external snubbers. |
| 175 °C maximum junction temperature | Supports operation in engine bay environments where ambient exceeds 125 °C, extending system lifetime under thermal stress. |
| True standard-level gate | VGS(th) >1 V at 175 °C ensures guaranteed turn-on with 5 V MCU outputs even at extreme temperature extremes. |
| Low RDS(on) × QG figure of merit | 43 mΩ × 10.4 nC = 447 mΩ·nC - Balances conduction and switching losses for optimal efficiency in 10–100 kHz PWM applications. |
Applications
| Transmission Control Module | Solenoid Driver Unit |
|---|---|
|
Use Scenario: High-side switching of hydraulic pressure control solenoids in automatic transmission valve bodies. IC Role / Device Role / Timing Role: Power switch controlling 12 V, 2–5 A solenoid coils with 10–50 ms pulse-width modulation. Use Value: 43 mΩ RDS(on) limits coil heating to <1.1 W at 5 A, while 175 °C rating ensures stability during prolonged gear-shift sequences. |
Use Scenario: Low-side drive of fuel injector solenoids in gasoline direct injection systems. IC Role / Device Role / Timing Role: Fast-switching N-channel MOSFET delivering precise 1–2 ms current pulses with minimal tail current. Use Value: 6 ns rise/fall times and 18 ns reverse recovery enable clean current edges, reducing electromagnetic interference in safety-critical engine control units. |
| Engine Cooling Fan Controller | Brake Light Load Switch |
|
Use Scenario: PWM-controlled 12 V DC brushless fan motor in radiator cooling modules. IC Role / Device Role / Timing Role: High-current half-bridge low-side switch operating at 20 kHz with 22 A peak current capability. Use Value: 87 A peak drain current and 12 mJ avalanche energy absorb startup inrush and stall transients without failure. |
Use Scenario: Solid-state replacement for mechanical relays in rear brake light circuits. IC Role / Device Role / Timing Role: Fail-safe power switch with short-circuit protection and thermal shutdown coordination. Use Value: AEC-Q101 qualification and 60 V VDS withstand 24 V jump-start scenarios and ISO 7637-2 load-dump spikes up to ±100 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, 2.2 mΩ RDS(on), 220 A ID, PowerFLAT 5x6 package, logic-level gate (VGS(th) = 1.5–2.5 V) | Higher current capacity but larger footprint; requires gate driver for fast switching due to 45 nC QG | Select when higher continuous current (>30 A) and lower conduction loss dominate over board space and gate drive simplicity. |
| IRF3205PBF | 55 V, 8 mΩ RDS(on), TO-220 package, standard-level gate (VGS(th) = 2–4 V), not AEC-Q101 qualified | Larger thermal mass but no automotive qualification; lacks repetitive avalanche rating and 175 °C operation | Select only for non-automotive industrial prototypes where cost and availability outweigh reliability and thermal constraints. |
Compared with STL220N6F7 and IRF3205PBF, BUK7Y43-60EX uniquely balances AEC-Q101 compliance, standard-level gate compatibility, compact LFPAK56 footprint, and verified avalanche ruggedness-making it optimal for production automotive modules where size, reliability, and 5 V MCU integration are jointly critical.
Availability
BUK7Y43-60EX is available at Aetrix Electronics and suitable for transmission control modules, solenoid driver units, engine cooling fan controllers, and brake light load switches requiring stable component supply across automotive production lifecycles.
Supply support for BUK7Y43-60EX 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 and logic devices, with deep expertise in automotive-qualified power semiconductors and advanced packaging.
BUK7Y43-60EX belongs to Nexperia's AEC-Q101-qualified LFPAK MOSFET product line, engineered specifically for thermally demanding 12 V automotive power switching applications including transmission, chassis, and body electronics.
FAQ
Is BUK7Y43-60EX suitable for high-side switching configurations?
No-BUK7Y43-60EX is an N-channel MOSFET with source terminals tied to ground reference in its pinout. For high-side switching, a P-channel device or N-channel with gate-boost circuitry is required. Its three-source-pin layout and mounting-base-as-drain construction are optimized for low-side or half-bridge low-side use only.
What is the maximum recommended PCB copper area for thermal performance?
Nexperia specifies a minimum 200 mm² of 2 oz copper connected to the mounting base for full 45 W power dissipation at Tmb = 25 °C. Performance scales linearly: 100 mm² supports ~22 W, and 50 mm² supports ~11 W. Thermal vias (≥8 × 0.3 mm diameter) beneath the mounting pad are mandatory for sustained operation above 10 W.
Does BUK7Y43-60EX require external gate resistors for automotive EMI compliance?
Yes-Nexperia recommends a 5 Ω series gate resistor (RG(ext)) for switching tests in the datasheet (Fig. 4, Fig. 14). This value controls dV/dt and di/dt to meet CISPR 25 Class 5 radiated emissions limits. Lower values increase EMI risk; higher values degrade switching speed and increase switching losses disproportionately.
Can BUK7Y43-60EX replace BUZ70 in existing designs?
Not directly-BUZ70 is a TO-220 packaged 50 V, 28 mΩ MOSFET with different pinout, thermal profile, and no AEC-Q101 qualification. While both are standard-level N-channel devices, BUK7Y43-60EX requires PCB redesign for LFPAK56 footprint, revised thermal layout, and validation of avalanche performance under identical test conditions.
BUK7Y43-60EX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- SC-100, SOT-669
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 60 V
- Current - Continuous Drain (Id) @ 25°C:
- 22A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 43mOhm @ 5A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 10.4 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 617 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 45W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LFPAK56, Power-SO8
BUK7Y43-60EX FAQ
1.How can I place an order for BUK7Y43-60EX through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7Y43-60EX 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 BUK7Y43-60EX reliable?
The price and inventory of BUK7Y43-60EX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7Y43-60EX is usually 5 days.
3.What payment methods are accepted for BUK7Y43-60EX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7Y43-60EX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7Y43-60EX?
BUK7Y43-60EX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7Y43-60EX 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 BUK7Y43-60EX?
For technical support, including BUK7Y43-60EX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7Y43-60EX requirements.
6.How does Aetrix verify that BUK7Y43-60EX is sourced from the original manufacturer or authorized distributors?
All BUK7Y43-60EX 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 BUK7Y43-60EX meets industry standards.
7.What is the process for return or replacement of BUK7Y43-60EX?
All BUK7Y43-60EX units undergo pre-shipment inspection (PSI). If there is an issue with BUK7Y43-60EX, 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 BUK7Y43-60EX part is unused and in its original packaging.
Return procedure for BUK7Y43-60EX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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