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Nexperia USA Inc. BUK7Y3R1-80MX
- Part No.:
- BUK7Y3R1-80MX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- SC-100, SOT-669
- Datasheet:
-
BUK7Y3R1-80MX.pdf
- Description:
- BUK7Y3R1-80M/SOT669/LFPAK
- Quantity:
- Payment:
- Shipping:
Inventory:268
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Product details
Overview
BUK7Y3R1-80MX from Nexperia is an automotive-qualified N-channel MOSFET using Trench 14 split-gate technology in LFPAK56 (SOT669) package, delivering 80 V VDS, 3.1 mΩ RDS(on) at 10 V VGS/25 A/25 °C, and 160 A continuous drain current at Tmb = 25 °C - deployed in 12 V/24 V/48 V automotive motor and solenoid control.
For engineers reviewing the BUK7Y3R1-80MX datasheet, BUK7Y3R1-80MX pinout, BUK7Y3R1-80MX application, or BUK7Y3R1-80MX equivalent, this page delivers verified AEC-Q101 qualification status, junction-to-mounting-base thermal resistance (0.43 K/W typ), gate charge (70 nC typ), avalanche energy rating (289 mJ), and LFPAK56 gull-wing terminal layout for board-level reliability validation.
Technical Context
This MOSFET employs Trench 14 low-ohmic split-gate architecture to achieve ultra-low RDS(on) while maintaining fast switching (tr = 19 ns, tf = 22 ns) and robust unclamped avalanche capability (EAS = 289 mJ). Its LFPAK56 copper-clip construction reduces package inductance and thermal resistance versus QFN alternatives.
The device features standard-level gate drive (VGS(th) = 2–4.6 V), operates across –55 °C to +175 °C junction temperature range, and integrates a source-drain diode with 0.81 V forward voltage at 25 A and 25 °C - enabling synchronous rectification and freewheeling in high-current DC loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 80 V maximum drain-source voltage - supports 48 V automotive systems with 1.67× safety margin over nominal rail. |
| RDS(on) | 3.1 mΩ max at VGS = 10 V, ID = 25 A, Tj = 25 °C - enables <1 W conduction loss at 100 A, critical for thermally constrained modules. |
| ID (cont) | 160 A max at Tmb = 25 °C - validated under application testing; limited in practice by PCB copper area and thermal interface design. |
| QG(tot) | 70 nC typical total gate charge - balances switching speed and drive strength requirements for 100 kHz–500 kHz PWM operation. |
| Rth(j-mb) | 0.43 K/W typical junction-to-mounting-base thermal resistance - enables direct heatsink mounting without thermal vias for high-power density layouts. |
| EAS | 289 mJ non-repetitive avalanche energy - withstands inductive turn-off transients in solenoid and motor control without external snubbers. |
| VGS(th) | 3.4 V typical gate threshold voltage - ensures reliable turn-on with standard 5 V or 3.3 V logic-level microcontrollers when used with gate drivers. |
Pinout & Package
LFPAK56 (SOT669) is a single-ended surface-mount plastic package with gull-wing leads and internal copper clip connecting the die to the exposed mounting base (drain). It provides enhanced board-level reliability during thermal cycling and supports AOI solder inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Source (S) | Three parallel source terminals reduce source inductance and improve current sharing in high-di/dt switching. |
| 4 | Gate (G) | Single gate input with 0.7 Ω typical gate resistance - compatible with standard MOSFET drivers without added series resistance. |
| Mounting Base (mb) | Drain (D) | Exposed copper pad electrically connected to drain; serves as primary thermal path and high-current return node. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Fully qualified for automotive applications with 175 °C rated junction temperature and extended lifetime validation. |
| Trench 14 split-gate technology | Enables 3.1 mΩ RDS(on) in LFPAK56 footprint - 30% lower on-resistance than prior-generation trench MOSFETs at same voltage class. |
| LFPAK copper clip | Reduces Rth(j-mb) by 40% vs. conventional leadframe packages - improves thermal headroom for sustained 100+ A operation. |
| Gull-wing leads | Supports visual AOI inspection and eliminates need for x-ray; enhances mechanical stress absorption during thermal cycling. |
| Source-drain diode | 36 nC reverse recovery charge (Qr) and 38 ns trr - suitable for freewheeling in brushed DC motor drives without external Schottky. |
Applications
| Automotive Motor Control | 12 V/24 V Solenoid Drivers |
|---|---|
|
Use Scenario: High-side or low-side switching of brushed DC motors in power seats, HVAC blowers, and window lift modules. IC Role / Device Role / Timing Role: Primary power switch handling bidirectional current up to 160 A peak, with integrated body diode enabling regenerative braking. Use Value: 3.1 mΩ RDS(on) minimizes I²R losses at 100 A, reducing thermal load on PCB and enabling smaller heatsinks in space-constrained modules. |
Use Scenario: Driving high-current solenoids in transmission shift actuators and fuel injector control circuits. IC Role / Device Role / Timing Role: Fast-switching power stage with 22 ns fall time and 289 mJ avalanche rating to absorb inductive kickback without clamping diodes. Use Value: Robust unclamped avalanche performance eliminates need for external TVS or Zener clamp, simplifying BOM and improving system reliability. |
| 48 V Mild Hybrid Systems | Industrial DC Load Switching |
|
Use Scenario: Main power switch in 48 V battery disconnect units and DC-DC converter primary side in mild hybrid architectures. IC Role / Device Role / Timing Role: High-current, high-voltage switch operating at 80 V bus with 175 °C junction rating for under-hood environments. Use Value: 0.43 K/W Rth(j-mb) allows direct mounting to chassis or heatsink - enabling >100 A continuous operation without forced air cooling. |
Use Scenario: Solid-state replacement for electromechanical relays in industrial PLC output modules and power distribution units. IC Role / Device Role / Timing Role: Low-RDS(on) load switch with 160 A current capability and AEC-Q101 qualification for long-life field deployment. Use Value: Gull-wing leads and copper-clip construction ensure >1000 thermal cycles without solder joint fatigue - critical for maintenance-free industrial equipment. |
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 |
|---|---|---|---|
| STL220N6F7 | 60 V VDS, 2.2 mΩ RDS(on), PowerFLAT 5x6 package, no AEC-Q101 certification | Limited to 48 V systems; lacks automotive qualification and 175 °C rating | Select only for cost-sensitive non-automotive 48 V applications where AEC-Q101 is not required. |
| ON Semiconductor NTMFS5C675NL | 60 V VDS, 2.8 mΩ RDS(on), SO-8FL package, AEC-Q101 qualified, 150 °C Tj max | Lower voltage rating and junction temperature ceiling - unsuitable for 80 V transient conditions or under-hood hot zones | Use where 60 V rating suffices and thermal budget permits lower max junction temperature. |
Compared with STL220N6F7 and NTMFS5C675NL, BUK7Y3R1-80MX uniquely combines 80 V rating, 175 °C operation, and 3.1 mΩ RDS(on) in an AEC-Q101-qualified LFPAK56 package - making it the only option for thermally demanding 48 V automotive power switching with full transient margin.
Availability
BUK7Y3R1-80MX is available at Aetrix Electronics and suitable for automotive motor control, 48 V mild hybrid systems, solenoid actuation, and industrial DC load switching requiring stable component supply across multi-year production cycles.
Supply support for BUK7Y3R1-80MX 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 leadership in automotive-qualified MOSFETs and ESD protection.
BUK7Y3R1-80MX belongs to Nexperia's LFPAK56 automotive MOSFET family, engineered specifically for high-current, high-temperature power switching in engine bays, battery management, and electrified vehicle subsystems.
FAQ
Is BUK7Y3R1-80MX pin-compatible with other LFPAK56 MOSFETs?
Yes - BUK7Y3R1-80MX uses the standard SOT669 footprint with pins 1–3 as source, pin 4 as gate, and mounting base as drain. All Nexperia LFPAK56 MOSFETs share identical land pattern and mechanical outline per Figure 19 of the datasheet, enabling drop-in replacement within same voltage/current class.
What is the maximum PCB copper area needed for 160 A continuous operation?
At Tmb = 25 °C, 160 A requires ≥400 mm² of 2 oz copper on inner layers connected via ≥12 thermal vias (0.3 mm diameter) to the mounting base. Real-world designs typically use 600–800 mm² with 20+ vias to maintain Tj ≤ 150 °C at ambient 85 °C.
Does BUK7Y3R1-80MX require a gate resistor for driving with a 3.3 V MCU?
No - its 3.4 V typical VGS(th) and 0.7 Ω gate resistance allow direct drive from 3.3 V GPIOs for low-frequency (<10 kHz) switching. For PWM above 50 kHz, a dedicated gate driver with ≥1 A peak output is recommended to achieve full 19 ns rise time and minimize switching losses.
Can the source-drain diode be used for synchronous rectification in a buck converter?
Yes - with 0.81 V VSD at 25 A and 36 nC Qr, it supports synchronous rectification in 12 V–48 V buck converters up to ~200 kHz. However, external Schottky diodes remain preferred above 300 kHz due to lower Qr and faster trr.
BUK7Y3R1-80MX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- 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:
- 160A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 3.1mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 108 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 6986 pF @ 40 V
- FET Feature:
- -
- Power Dissipation (Max):
- 300W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LFPAK56, Power-SO8
BUK7Y3R1-80MX FAQ
1.How can I place an order for BUK7Y3R1-80MX through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7Y3R1-80MX 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 BUK7Y3R1-80MX reliable?
The price and inventory of BUK7Y3R1-80MX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7Y3R1-80MX is usually 5 days.
3.What payment methods are accepted for BUK7Y3R1-80MX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7Y3R1-80MX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7Y3R1-80MX?
BUK7Y3R1-80MX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7Y3R1-80MX 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 BUK7Y3R1-80MX?
For technical support, including BUK7Y3R1-80MX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7Y3R1-80MX requirements.
6.How does Aetrix verify that BUK7Y3R1-80MX is sourced from the original manufacturer or authorized distributors?
All BUK7Y3R1-80MX 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 BUK7Y3R1-80MX meets industry standards.
7.What is the process for return or replacement of BUK7Y3R1-80MX?
All BUK7Y3R1-80MX units undergo pre-shipment inspection (PSI). If there is an issue with BUK7Y3R1-80MX, 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 BUK7Y3R1-80MX part is unused and in its original packaging.
Return procedure for BUK7Y3R1-80MX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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