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Nexperia USA Inc. BUK9M12-60EX
- Part No.:
- BUK9M12-60EX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- SOT-1210, 8-LFPAK33 (5-Lead)
- Datasheet:
-
BUK9M12-60EX.pdf
- Description:
- MOSFET N-CH 60V 54A LFPAK33
- Quantity:
- Payment:
- Shipping:
Inventory:3,798
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Product details
Overview
BUK9M12-60EX from Nexperia is an AEC-Q101 qualified N-channel logic-level MOSFET in LFPAK33 (SOT1210) package, rated for 60 V VDS, 12 mΩ RDS(on) at VGS = 5 V and Tj = 25 °C, and 175 °C junction operation - designed for high-reliability automotive power switching in 12 V systems.
For engineers reviewing the BUK9M12-60EX datasheet, BUK9M12-60EX pinout, BUK9M12-60EX application, or BUK9M12-60EX equivalent, this device is selected for thermally demanding, repetitive-avalanche-capable load control where low gate drive voltage (≥0.5 V threshold at 175 °C), high peak current (216 A), and robust thermal resistance (Rth(j-mb) = 1.58 K/W) are critical.
Technical Context
This MOSFET uses TrenchMOS technology to achieve low on-resistance with true logic-level gate drive compatibility down to 5 V, enabling direct interface with microcontrollers and ASICs without level-shifting. Its LFPAK33 package integrates a thermally optimized mounting base connected to drain, supporting high-power dissipation (79 W at Tmb = 25 °C).
The device features fully specified repetitive avalanche capability (EAS = 50.5 mJ), 175 °C continuous junction rating, and Q101 qualification - confirming suitability for automotive transmission control, motor drivers, and solenoid interfaces where transient overvoltage, thermal cycling, and long-term reliability are design-critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 60 V - Maximum drain-source blocking voltage; supports full 12 V automotive battery transients up to ISO 7637-2 Pulse 5a (75 V). |
| RDS(on) | 10–12 mΩ @ VGS = 5 V, ID = 15 A, Tj = 25 °C - Enables <1.2 W conduction loss at 35 A, critical for compact thermal design. |
| ID (continuous) | 54 A @ Tmb = 25 °C - High current capability with metal-base thermal path; derates to 38 A at Tmb = 100 °C. |
| EAS | 50.5 mJ - Single-pulse unclamped avalanche energy; allows safe operation during inductive turn-off without external snubbers. |
| Rth(j-mb) | 1.58 K/W - Low thermal resistance from junction to mounting base; enables >70% of rated power dissipation with minimal PCB copper area. |
| QGD | 7.9 nC - Gate-drain charge determines switching speed and Miller plateau duration; supports efficient 100 kHz+ PWM in motor control. |
| VGS(th) | 0.5 V min @ Tj = 175 °C - Guaranteed turn-on at elevated temperature with standard 5 V logic, eliminating gate driver complexity. |
Pinout & Package
LFPAK33 (SOT1210) is a surface-mount, single-ended power package with exposed drain mounting base and 4 source terminals + 1 gate terminal. The metal base provides low-inductance, low-thermal-resistance connection to PCB heatsink.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Source (S) | Three parallel source leads reduce bond-wire inductance and improve current sharing; enable low-impedance return path for high di/dt loads. |
| 4 | Gate (G) | Single gate input with controlled impedance; compatible with 5 V CMOS drivers; gate charge QG(tot) = 21 nC ensures fast, predictable switching. |
| Mounting base (mb) | Drain (D) | Exposed copper pad electrically and thermally connected to drain; serves as primary heat transfer path and high-current drain node. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22-A114 - required for engine bay and transmission modules. |
| Repetitive avalanche rated | Rated for repeated unclamped inductive switching events (per Fig. 4); eliminates need for external avalanche protection in solenoid and motor drives. |
| 175 °C continuous junction rating | Enables operation in under-hood environments without derating; supports extended lifetime at high ambient temperatures (e.g., near exhaust manifolds). |
| True logic-level gate | VGS(th) ≥ 0.5 V at 175 °C ensures guaranteed turn-on with 5 V MCU outputs even at maximum operating temperature. |
| Low RDS(on) × QG figure-of-merit | 12 mΩ × 21 nC = 252 mΩ·nC - balances conduction and switching losses for high-efficiency 12 V DC-DC and BLDC gate drivers. |
Applications
| Engine Control Module (ECM) Valve Driver | Automotive HVAC Blower Motor |
|---|---|
Use Scenario: Driving 12 V fuel injector or EGR valve solenoid with 20–30 A peak current and 100 Hz PWM. IC Role / Device Role / Timing Role: High-side or low-side power switch handling inductive load commutation and flyback energy recovery. Use Value: Repetitive avalanche rating absorbs solenoid turn-off energy without clamping diodes; 175 °C rating sustains operation near hot engine components. |
Use Scenario: Controlling brushed DC blower motor in cabin air system with variable-speed PWM (1–20 kHz). IC Role / Device Role / Timing Role: Low-side switching element managing bidirectional current flow and regenerative braking energy. Use Value: 54 A continuous current and 216 A pulsed rating support motor stall conditions; low RDS(on) minimizes heat generation in confined dashboard space. |
| Transmission Control Unit (TCU) Clutch Actuator | 12 V Automotive LED Headlamp Matrix |
Use Scenario: Switching hydraulic clutch solenoids in automatic transmission with frequent on/off cycles and high ambient temperature. IC Role / Device Role / Timing Role: Robust power switch delivering precise current pulses to electro-hydraulic actuators. Use Value: Q101 qualification ensures longevity across 15-year vehicle life; 1.58 K/W Rth(j-mb) enables stable thermal performance on small heatsinks. |
Use Scenario: Individual channel switching for adaptive LED headlamp segments requiring fast, reliable 12 V power control. IC Role / Device Role / Timing Role: High-speed, low-loss power switch enabling dynamic beam shaping with <50 ns switching transitions. Use Value: Low QGD (7.9 nC) and fast tr/tf (21.3/17.4 ns) minimize switching losses during high-frequency dimming. |
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 |
|---|---|---|---|
| STL220N6F7 | 60 V, 2.2 mΩ RDS(on) @ 10 V, but requires 10 V gate drive; not logic-level; Q101 qualified. | Better conduction efficiency at high gate voltage; unsuitable for 5 V-only MCU control without level shifter. | Select when gate drive can be boosted to 10 V and lowest possible RDS(on) is prioritized over logic compatibility. |
| ON Semiconductor NTMFS5C675NL | 60 V, 5.8 mΩ RDS(on) @ 10 V; logic-level capable down to 4.5 V; AEC-Q101 qualified; PowerTrench® packaging. | Lower RDS(on) than BUK9M12-60EX at 10 V, but higher QG (32 nC); slightly larger SO-8FL footprint. | Choose when higher switching frequency (>200 kHz) is needed and board space allows SO-8FL; verify thermal interface with PCB. |
Compared with STL220N6F7 and NTMFS5C675NL, BUK9M12-60EX uniquely delivers verified 5 V logic-level operation with 12 mΩ RDS(on) and 1.58 K/W thermal resistance in LFPAK33 - making it optimal for space-constrained, thermally aggressive 12 V automotive modules where gate drive simplicity and mounting-base cooling are decisive.
Availability
BUK9M12-60EX is available at Aetrix Electronics and suitable for automotive engine control, transmission actuation, and HVAC motor control requiring stable component supply across multi-year vehicle production programs.
Supply support for BUK9M12-60EX 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, logic, and MOSFET solutions - with leadership in automotive-qualified components and advanced packaging.
BUK9M12-60EX belongs to Nexperia's LFPAK automotive MOSFET product line, engineered specifically for high-current, high-temperature 12 V automotive power switching where AEC-Q101 compliance, avalanche ruggedness, and thermal performance are non-negotiable.
FAQ
Is BUK9M12-60EX suitable for high-side switching configurations?
No - the LFPAK33 mounting base is internally connected to drain, and the package lacks isolated source/substrate terminals required for high-side floating-gate drive. It is designed exclusively for low-side or common-source switching where drain connects to the positive rail and source ties to ground or load return.
What is the maximum allowable PCB copper area for thermal performance at 54 A continuous?
With 1.58 K/W Rth(j-mb), achieving Tj ≤ 175 °C at 54 A (79 W Ptot) requires Tmb ≤ 25 °C. This demands ≥2000 mm² of 2 oz copper directly under the mounting base, plus thermal vias to inner layers - verified in Nexperia's AN11158 thermal guidelines and SOT1210 layout recommendations.
Does BUK9M12-60EX include integrated gate protection?
No - the device has no built-in gate resistor or Zener clamp. External gate series resistance (typically 5–10 Ω) and optional 12 V gate-to-source Zener are recommended per Nexperia AN10273 to prevent dv/dt-induced false turn-on and gate oxide overstress during fast-switching or noisy automotive environments.
Can BUK9M12-60EX replace older BUK9Y series MOSFETs in existing designs?
Yes - BUK9M12-60EX shares identical LFPAK33 (SOT1210) footprint and pinout with BUK9Yxx-60E devices, and offers improved RDS(on) (12 mΩ vs. 14–16 mΩ) and tighter VGS(th) distribution. No PCB change is needed; verify gate drive timing margins due to lower QGD and faster switching.
BUK9M12-60EX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- SOT-1210, 8-LFPAK33 (5-Lead)
- 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:
- 54A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 5V
- Rds On (Max) @ Id, Vgs:
- 11mOhm @ 15A, 10V
- Vgs(th) (Max) @ Id:
- 2.1V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2769 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 79W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LFPAK33
BUK9M12-60EX FAQ
1.How can I place an order for BUK9M12-60EX through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK9M12-60EX 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 BUK9M12-60EX reliable?
The price and inventory of BUK9M12-60EX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9M12-60EX is usually 5 days.
3.What payment methods are accepted for BUK9M12-60EX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9M12-60EX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK9M12-60EX?
BUK9M12-60EX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK9M12-60EX 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 BUK9M12-60EX?
For technical support, including BUK9M12-60EX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9M12-60EX requirements.
6.How does Aetrix verify that BUK9M12-60EX is sourced from the original manufacturer or authorized distributors?
All BUK9M12-60EX 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 BUK9M12-60EX meets industry standards.
7.What is the process for return or replacement of BUK9M12-60EX?
All BUK9M12-60EX units undergo pre-shipment inspection (PSI). If there is an issue with BUK9M12-60EX, 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 BUK9M12-60EX part is unused and in its original packaging.
Return procedure for BUK9M12-60EX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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