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Nexperia USA Inc. BUK7Y14-80EX
- Part No.:
- BUK7Y14-80EX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- SC-100, SOT-669
- Datasheet:
-
BUK7Y14-80EX.pdf
- Description:
- MOSFET N-CH 80V 65A LFPAK56
- Quantity:
- Payment:
- Shipping:
Inventory:75
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Product details
Overview
BUK7Y14-80EX from Nexperia is an AEC-Q101 qualified N-channel TrenchMOS power MOSFET in LFPAK56 (SOT669) package, rated for 80 V VDS, 14 mΩ RDS(on) at 10 V VGS and 25 °C, and 175 °C junction operation. It serves as a high-reliability load switch in automotive power distribution, motor control, and transmission systems requiring repetitive avalanche capability and true standard-level gate drive.
For engineers reviewing the BUK7Y14-80EX datasheet, BUK7Y14-80EX pinout, BUK7Y14-80EX application, or BUK7Y14-80EX equivalent, key selection criteria include its 1.02 K/W Rth(j-mb), 65 A continuous drain current at Tmb = 25 °C, QGD = 12.9 nC for fast switching, and guaranteed VGS(th) > 1 V at 175 °C for robust gate control under thermal stress.
Technical Context
This MOSFET uses TrenchMOS technology to achieve low on-resistance with high thermal robustness. Its LFPAK56 package integrates a thermally optimized mounting base directly connected to the drain, enabling efficient heat transfer to the PCB copper plane.
The device features true standard-level gate threshold (VGS(th) > 1 V at 175 °C), repetitive avalanche rating (EAS = 76.8 mJ), and full AEC-Q101 qualification for automotive use - including temperature cycling, humidity testing, and mechanical shock compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 80 V maximum drain-source voltage - supports 48 V automotive architectures with margin against transients. |
| RDS(on) | 9.2–14 mΩ at VGS = 10 V, ID = 15 A, Tj = 25 °C - enables low conduction loss in high-current switching paths. |
| ID (continuous) | 65 A at Tmb = 25 °C - delivers high power density when mounted on adequately sized copper pads. |
| QGD | 12.9 nC - determines Miller plateau duration and influences switching speed and gate driver sizing. |
| Rth(j-mb) | 1.02 K/W - defines thermal resistance from junction to mounting base, critical for PCB thermal design. |
| EAS | 76.8 mJ (unclamped, single-pulse) - quantifies ruggedness against inductive energy during turn-off. |
| VGS(th) | >1 V at Tj = 175 °C - ensures reliable turn-on under worst-case thermal conditions without overdriving gate. |
Pinout & Package
LFPAK56 (SOT669) is a surface-mount, 4-lead power package with exposed mounting base (drain-connected) for enhanced thermal performance. The package measures 5.8 × 4.1 mm with 1.27 mm lead pitch and 1.01 mm height.
| 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-frequency switching. |
| 4 | Gate (G) | Single gate input with low capacitance (Ciss typ. 2370 pF) optimized for standard-level logic drive. |
| Mounting Base | Drain (D) | Exposed copper pad electrically and thermally connected to drain - must be soldered to large PCB copper area for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including temperature cycling, HAST, and mechanical shock per JESD47. |
| Repetitive avalanche rated | Rated for repeated unclamped inductive switching events - enables robust operation in solenoid and motor drive circuits. |
| 175 °C junction rating | Supports operation in engine bay and transmission control units where ambient temperatures exceed 125 °C. |
| True standard-level gate | VGS(th) > 1 V at 175 °C ensures compatibility with 3.3 V/5 V microcontrollers without level-shifting circuitry. |
| Low Rth(j-mb) | 1.02 K/W enables >60 W dissipation with minimal ΔT between junction and PCB - reduces need for heatsinks. |
Applications
| Engine Control Unit (ECU) Load Switching | Transmission Solenoid Driver |
|---|---|
|
Use Scenario: High-side switching of fuel injector or ignition coil loads in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Power switch controlling 12 V/24 V inductive loads with precise PWM timing and fast turn-off to limit back-EMF. Use Value: Repetitive avalanche rating absorbs inductive kickback without external snubbers; 175 °C rating ensures reliability near hot engine components. |
Use Scenario: Driving hydraulic solenoids in automatic transmission valve bodies. IC Role / Device Role / Timing Role: Low-loss, high-current switch delivering up to 46 A at 100 °C mounting base temperature for sustained duty cycles. Use Value: 14 mΩ RDS(on) minimizes I²R heating during long-duration engagement; AEC-Q101 qualification guarantees lifetime reliability. |
| 48 V Mild Hybrid DC-DC Converter | Electric Power Steering (EPS) Motor Phase Switch |
|
Use Scenario: Synchronous rectification in bidirectional 48 V–12 V DC-DC converters for mild hybrid vehicles. IC Role / Device Role / Timing Role: Low-RDS(on) N-channel MOSFET used in high-side synchronous rectifier position with gate drive referenced to switching node. Use Value: 80 V VDS provides margin above 48 V bus (including ISO 7637-2 pulse 5a); QGD = 12.9 nC enables efficient high-frequency (>100 kHz) operation. |
Use Scenario: Half-bridge phase leg in 3-phase EPS motor drivers handling peak currents >200 A. IC Role / Device Role / Timing Role: High-current, low-inductance power switch operating in hard-switched PWM mode with tight dead-time control. Use Value: Three-source-pin layout reduces source inductance for clean switching waveforms; 259 A peak drain current supports motor stall conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel automotive power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL220N6F7 | 60 V VDS, 1.2 mΩ RDS(on), PowerFLAT 5×6 package, no AEC-Q101 certification | Limited to 24 V systems; lacks automotive qualification and avalanche rating | Select only for non-automotive industrial 24 V applications where cost outweighs qualification requirements. |
| IRF100N04S4-1P | 40 V VDS, 1.1 mΩ RDS(on), TO-252 package, AEC-Q101 qualified but no repetitive avalanche spec | Not suitable for 48 V or high-transient 12 V/24 V systems due to lower voltage rating | Use only in space-constrained 12 V body electronics where 40 V margin suffices and avalanche is not required. |
Compared with STL220N6F7 and IRF100N04S4-1P, BUK7Y14-80EX uniquely combines 80 V rating, AEC-Q101 qualification, repetitive avalanche capability, and true standard-level gate behavior - making it the only viable option for 48 V mild hybrid and high-reliability transmission control designs.
Availability
BUK7Y14-80EX is available at Aetrix Electronics and suitable for automotive ECU load switching, transmission solenoid control, and 48 V mild hybrid DC-DC converter designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for BUK7Y14-80EX 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-qualified components.
BUK7Y14-80EX belongs to Nexperia's Automotive Logic and Power portfolio, engineered specifically for demanding automotive power switching applications where AEC-Q101 compliance, thermal resilience, and avalanche ruggedness are mandatory.
FAQ
Is BUK7Y14-80EX suitable for high-frequency PWM applications above 200 kHz?
Yes - with QGD = 12.9 nC and Ciss = 2370 pF (typ.), BUK7Y14-80EX supports efficient switching up to 500 kHz in hard-switched topologies when paired with a 1–2 Ω gate driver. Its low Rth(j-mb) (1.02 K/W) prevents thermal runaway during high-duty-cycle operation.
What is the recommended PCB layout for optimal thermal performance?
Use ≥200 mm² of 2-oz copper connected directly to the mounting base (drain) with ≥6 thermal vias (0.3 mm diameter, 0.6 mm pitch) to inner ground/power planes. Keep source traces wide and short; route gate traces away from drain paths to minimize coupling.
Does BUK7Y14-80EX require a gate resistor for automotive ESD protection?
No dedicated gate resistor is required for ESD protection - the device meets AEC-Q101 HBM ≥2 kV and CDM ≥1 kV. However, a 5–10 Ω series gate resistor is recommended to dampen ringing and control dV/dt during fast switching in noisy automotive environments.
Can BUK7Y14-80EX replace older BUK7Y14-80E variants in existing designs?
Yes - BUK7Y14-80EX is a direct replacement for BUK7Y14-80E with identical electrical specifications, pinout, package, and qualification. The 'X' suffix denotes updated wafer fabrication and assembly processes, maintaining full form-fit-function compatibility and enhanced process control.
BUK7Y14-80EX 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):
- 80 V
- Current - Continuous Drain (Id) @ 25°C:
- 65A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 14mOhm @ 15A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 44.8 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 3155 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 147W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LFPAK56, Power-SO8
BUK7Y14-80EX FAQ
1.How can I place an order for BUK7Y14-80EX through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7Y14-80EX 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 BUK7Y14-80EX reliable?
The price and inventory of BUK7Y14-80EX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7Y14-80EX is usually 5 days.
3.What payment methods are accepted for BUK7Y14-80EX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7Y14-80EX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7Y14-80EX?
BUK7Y14-80EX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7Y14-80EX 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 BUK7Y14-80EX?
For technical support, including BUK7Y14-80EX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7Y14-80EX requirements.
6.How does Aetrix verify that BUK7Y14-80EX is sourced from the original manufacturer or authorized distributors?
All BUK7Y14-80EX 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 BUK7Y14-80EX meets industry standards.
7.What is the process for return or replacement of BUK7Y14-80EX?
All BUK7Y14-80EX units undergo pre-shipment inspection (PSI). If there is an issue with BUK7Y14-80EX, 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 BUK7Y14-80EX part is unused and in its original packaging.
Return procedure for BUK7Y14-80EX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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