My Inquiry
My Account
Nexperia USA Inc. BUK7M22-80EX
- Part No.:
- BUK7M22-80EX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- SOT-1210, 8-LFPAK33 (5-Lead)
- Datasheet:
-
BUK7M22-80EX.pdf
- Description:
- MOSFET N-CH 80V 37A LFPAK33
- Quantity:
- Payment:
- Shipping:
Inventory:11,462
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BUK7M22-80EX from Nexperia is an AEC-Q101 qualified N-channel standard-level MOSFET in LFPAK33 (SOT1210) package, rated for 80 V VDS, 22 mΩ RDS(on) at 10 V VGS and 25 °C, 175 °C junction temperature, and repetitive avalanche capability - deployed in automotive transmission control and high-current solenoid switching.
For engineers reviewing the BUK7M22-80EX datasheet, BUK7M22-80EX pinout, BUK7M22-80EX application, or BUK7M22-80EX equivalent, this page delivers verified electrical specs, thermal resistance (1.82 K/W j-mb), gate charge (23.9 nC total), avalanche energy rating (36.9 mJ), and LFPAK33 terminal mapping to support robust power stage design in 12 V–48 V automotive systems.
Technical Context
This MOSFET uses TrenchMOS technology with true standard-level gate drive (VGS(th) > 1 V at 175 °C), enabling direct microcontroller interface without level-shifting. Its drain-connected mounting base provides low-inductance, high-current return path and efficient heat transfer to PCB copper.
The device features integrated source-drain diode with 0.83 V forward voltage at 10 A and 25.8 ns reverse recovery time, supporting synchronous rectification and freewheeling in inductive load circuits. Repetitive avalanche rating ensures reliability under transient overvoltage events common in automotive load-dump conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 80 V maximum - supports 48 V automotive architectures with margin against load dump transients up to ISO 7637-2 Pulse 5a. |
| RDS(on) | 18–22 mΩ at VGS = 10 V, Tj = 25 °C - enables <1.5 W conduction loss at 37 A continuous current with minimal heatsinking. |
| ID | 37 A continuous at Tmb = 25 °C - sustains high-current motor/solenoid drive with derating to 26 A at 100 °C mounting base. |
| EAS | 36.9 mJ non-repetitive avalanche energy - withstands unclamped inductive switching events without failure when properly biased. |
| Rth(j-mb) | 1.82 K/W typical - allows direct thermal coupling to PCB copper pour or heatsink, enabling compact 175 °C-rated operation. |
| QG(tot) | 23.9 nC - determines gate driver current requirement (~2.4 A peak for 10 ns rise time with 5 Ω external resistor). |
| Ciss | 1235–1643 pF - impacts high-frequency switching losses and EMI behavior in PWM-driven loads. |
Pinout & Package
LFPAK33 (SOT1210) is a thermally enhanced surface-mount package with exposed drain mounting base and three parallel source terminals for low-inductance, high-current routing. The 4-pin configuration integrates mechanical robustness and thermal performance for automotive under-hood deployment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Source (S) | Three paralleled source terminals reduce package inductance and resistive drop; enable high-current return path routing on PCB. |
| 4 | Gate (G) | Single gate input with 5.7 nC QGS; requires stable 10 V drive for full RDS(on) specification and fast turn-on. |
| Mounting Base (mb) | Drain (D) | Exposed copper pad electrically connected to drain - serves as primary thermal path and high-current output node. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability across -55 °C to 175 °C operating range and lifetime vibration/thermal cycling stress. |
| Repetitive avalanche rating | Enables safe operation during repeated inductive turn-off events without external snubbers in transmission valve drivers. |
| 175 °C junction rating | Permits placement near hot engine components without derating penalties - critical for under-hood ECUs and body controllers. |
| Standard-level gate threshold | VGS(th) > 1 V at 175 °C ensures reliable turn-on with 3.3 V or 5 V MCU GPIOs, eliminating need for gate drivers in many applications. |
| Low Rth(j-mb) | 1.82 K/W thermal resistance enables >70 W dissipation on 25 °C board - reduces need for external heatsinks in space-constrained modules. |
Applications
| Transmission Solenoid Control | Engine Cooling Fan Drive |
|---|---|
|
Use Scenario: High-duty-cycle PWM control of hydraulic solenoids in 8-speed automatic transmissions. IC Role / Device Role / Timing Role: High-side or low-side power switch managing 15–25 A peak solenoid currents with 10–50 kHz switching. Use Value: 22 mΩ RDS(on) minimizes I²R heating during sustained actuation; 36.9 mJ avalanche rating absorbs back-EMF spikes during rapid de-energization. |
Use Scenario: Variable-speed control of 12 V brushless cooling fans in engine bay environments exceeding 105 °C ambient. IC Role / Device Role / Timing Role: Low-side switching element in H-bridge or single-phase inverter topology driving fan motor windings. Use Value: 175 °C Tj rating and 1.82 K/W Rth(j-mb) allow direct PCB mounting without heatsink while maintaining safe thermal margin at full load. |
| Start-Stop System Battery Switch | 48 V Mild Hybrid DC-DC Converter |
|
Use Scenario: Bidirectional battery disconnect switch in 12 V start-stop systems handling cranking surges up to 147 A peak. IC Role / Device Role / Timing Role: High-current, low-RDS(on) power switch placed between starter battery and auxiliary loads. Use Value: 147 A pulsed current rating and 37 A continuous current support cold-cranking loads; LFPAK33's low-inductance layout suppresses voltage overshoot during fast turn-off. |
Use Scenario: Synchronous rectifier in 48 V–12 V bidirectional DC-DC converter for mild hybrid power distribution. IC Role / Device Role / Timing Role: Secondary-side MOSFET in synchronous buck topology operating at 200–500 kHz with zero-voltage switching. Use Value: 25.8 ns trr and 33.5 nC Qr minimize reverse recovery losses; integrated source-drain diode enables cost-effective synchronous rectification without discrete Schottky. |
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 |
|---|---|---|---|
| STL220N4F7AG | 40 V VDS, 0.75 mΩ RDS(on), PowerFLAT 5x6 package, 175 °C rated | Limited to 40 V systems; superior RDS(on) but lower voltage headroom for 48 V transients | Select only for 24 V or lower automotive subsystems where ultra-low conduction loss outweighs voltage margin needs. |
| IRF3207PBF | 75 V VDS, 3.5 mΩ RDS(on), TO-220AB package, 175 °C rated, not AEC-Q101 qualified | Larger footprint, higher thermal resistance (1.25 K/W j-case), no automotive qualification | Acceptable for industrial 12 V/24 V motor drives but unsuitable for production automotive ECUs requiring AEC-Q101 compliance. |
Compared with STL220N4F7AG and IRF3207PBF, BUK7M22-80EX uniquely balances 80 V voltage margin, AEC-Q101 qualification, LFPAK33 thermal efficiency, and standard-level gate compatibility - making it the only option qualified for safety-critical 48 V automotive power switching where both reliability and compact layout are mandatory.
Availability
BUK7M22-80EX is available at Aetrix Electronics and suitable for automotive transmission control, engine cooling fan drives, and 48 V mild hybrid DC-DC converters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for BUK7M22-80EX 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 logic, discrete, and MOSFET solutions, with leadership in automotive-qualified components and advanced packaging technologies.
The BUK7M22-80EX belongs to Nexperia's Automotive TrenchMOS portfolio, engineered specifically for demanding under-hood power switching applications requiring AEC-Q101 compliance, high-temperature operation, and robust avalanche performance.
FAQ
What is the maximum continuous drain current at 100 °C mounting base temperature?
The BUK7M22-80EX supports 26 A continuous drain current at Tmb = 100 °C, as specified in Table 5 (Limiting values) and confirmed by Fig. 2 in the datasheet. This derating reflects thermal constraints of the LFPAK33 package and ensures safe operation within the 175 °C maximum junction temperature limit.
Is the mounting base electrically isolated from the drain terminal?
No - the mounting base (mb) is internally connected to the drain (D) terminal, as explicitly stated in Table 2 (Pinning information) and shown in the simplified outline graphic. This configuration enables direct thermal conduction to the PCB while requiring appropriate isolation of the drain net from other circuit potentials.
Can this MOSFET be driven directly by a 3.3 V microcontroller GPIO?
Yes - its VGS(th) remains >1 V even at 175 °C junction temperature, and it achieves usable RDS(on) down to ~40 mΩ at VGS = 4.5 V (Fig. 7). However, for full 22 mΩ performance and optimal switching speed, a 10 V gate drive is required per datasheet test conditions.
What is the significance of the "standard level" gate designation?
"Standard level" means the MOSFET is designed for direct drive by conventional 10 V logic or automotive MCU outputs without requiring gate boosters. Unlike "logic-level" devices optimized for 5 V, it maintains sufficient VGS(th) margin (>1 V) at extreme temperatures, ensuring robust turn-on in harsh automotive environments.
BUK7M22-80EX 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):
- 80 V
- Current - Continuous Drain (Id) @ 25°C:
- 37A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 22mOhm @ 10A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 23.9 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1643 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 75W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LFPAK33
BUK7M22-80EX FAQ
1.How can I place an order for BUK7M22-80EX through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7M22-80EX 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 BUK7M22-80EX reliable?
The price and inventory of BUK7M22-80EX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7M22-80EX is usually 5 days.
3.What payment methods are accepted for BUK7M22-80EX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7M22-80EX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7M22-80EX?
BUK7M22-80EX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7M22-80EX 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 BUK7M22-80EX?
For technical support, including BUK7M22-80EX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7M22-80EX requirements.
6.How does Aetrix verify that BUK7M22-80EX is sourced from the original manufacturer or authorized distributors?
All BUK7M22-80EX 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 BUK7M22-80EX meets industry standards.
7.What is the process for return or replacement of BUK7M22-80EX?
All BUK7M22-80EX units undergo pre-shipment inspection (PSI). If there is an issue with BUK7M22-80EX, 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 BUK7M22-80EX part is unused and in its original packaging.
Return procedure for BUK7M22-80EX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BUK7M22-80EX Tags
-
BSZ180P03NS3EGATMA1
Infineon Technologies
-
SIRA14DP-T1-GE3
Vishay Siliconix
-
AO4419
Alpha & Omega Semiconductor Inc.
-
SISA14BDN-T1-GE3
Vishay Siliconix
-
PSMN9R5-30YLC,115
Nexperia USA Inc.
-
BUK9Y21-40E,115
Nexperia USA Inc.
-
RTQ035N03HZGTR
Rohm Semiconductor
-
FDMS7680
onsemi
-
RQ3E180BNTB
Rohm Semiconductor
-
STL6N2VH5
STMicroelectronics
-
DMPH4029LFGQ-7
Diodes Incorporated
-
DMT6015LSS-13
Diodes Incorporated
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
