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Nexperia USA Inc. BUK9E06-55B,127
- Part No.:
- BUK9E06-55B,127
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
BUK9E06-55B,127.pdf
- Description:
- MOSFET N-CH 55V 75A I2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,043
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Product details
Overview
BUK9E06-55B from Nexperia is an AEC-Q101 qualified N-channel TrenchMOS FET in I2PAK (SOT226) package, rated for 55 V VDS, 75 A continuous drain current at Tmb = 25 °C, and 175 °C junction temperature, designed for automotive 12 V/24 V load switching including motors, lamps, and solenoids.
For engineers reviewing the BUK9E06-55B datasheet, BUK9E06-55B pinout, BUK9E06-55B application, or BUK9E06-55B equivalent, key selection criteria include RDS(on) at 5 V gate drive (5.1–6 mΩ), avalanche energy rating (679 mJ), thermal resistance to mounting base (0.58 K/W), and logic-level gate compatibility for direct MCU interface.
Technical Context
This device uses TrenchMOS technology to achieve low on-resistance with stable threshold voltage across -55 °C to +175 °C. Its gate-source threshold voltage ranges from 0.5 V (Tj = 175 °C) to 2.3 V (Tj = -55 °C), enabling reliable turn-on under extreme thermal conditions.
The integrated source-drain diode supports freewheeling in inductive loads, with VSD = 0.85–1.2 V at 25 A and trr = 64 ns. Dynamic parameters include QGD = 22 nC and Ciss = 5674–7565 pF, supporting fast switching in high-efficiency power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 55 V - Maximum blocking voltage for 12 V/24 V automotive systems with margin against transients |
| RDS(on) @ VGS = 5 V | 5.1–6 mΩ - Enables low conduction loss with standard logic-level microcontroller drive |
| ID (continuous) | 75 A @ Tmb = 25 °C - Package-limited current suitable for high-power solenoid and motor control |
| EAS | 679 mJ - Unclamped avalanche energy rating ensures robustness during inductive switching events |
| Rth(j-mb) | 0.58 K/W - Low thermal resistance enables high power dissipation when mounted on heatsink |
| QGD | 22 nC - Gate-drain charge directly impacts switching loss and EMI in hard-switched topologies |
| VGS(th) | 1.1–2.0 V @ Tj = 25 °C - Ensures full enhancement with 3.3 V or 5 V logic without gate boosting |
Pinout & Package
Package: I2PAK (SOT226), plastic single-ended 3-lead TO-220AB variant with isolated mounting base connected to drain. Designed for surface-mount or through-hole PCB assembly with heatsink attachment via metal base.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal; accepts logic-level drive (VGS(th) ≤ 2.0 V); requires <100 nA leakage current handling |
| 2 (D) | Drain | Main power output; electrically tied to mounting base; carries full load current and dissipates heat |
| 3 (S) | Source | Power return path; referenced to system ground; used for current sensing and gate drive reference |
| Mounting Base (mb) | Drain Connection | Thermally conductive metal pad bonded to drain; must be soldered or clamped to heatsink for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive safety-critical applications including engine control and body electronics |
| 175 °C maximum junction temperature | Enables operation in under-hood environments without derating in thermally constrained enclosures |
| Logic-level gate drive (VGS(th) ≤ 2.0 V) | Direct interface with 3.3 V or 5 V MCUs without level-shifting circuitry |
| Low RDS(on) at 5 V gate drive | Reduces conduction losses by >30% vs. standard MOSFETs requiring 10 V gate drive |
| Unclamped avalanche ruggedness (679 mJ) | Eliminates need for external snubbers in relay replacement and inductive load switching |
Applications
| Automotive Door Lock Actuator | 12 V Engine Cooling Fan Control |
|---|---|
|
Use Scenario: High-cycle bidirectional solenoid actuation for central locking systems with PWM duty cycling. IC Role / Device Role / Timing Role: Power switch controlling solenoid coil current; handles repetitive 100 ms pulses with peak ID up to 146 A. Use Value: 175 °C rating prevents thermal shutdown during sustained operation; 679 mJ avalanche energy absorbs back-EMF spikes without failure. |
Use Scenario: Variable-speed fan driver in engine bay, operating continuously at ambient up to 105 °C. IC Role / Device Role / Timing Role: High-side or low-side PWM switch modulating 12 V DC motor current at 20–25 kHz. Use Value: 0.58 K/W Rth(j-mb) enables efficient heat transfer to chassis-mounted heatsink; RDS(on) < 6 mΩ minimizes I²R loss at 40 A average current. |
| Truck Headlamp Dimming Circuit | 24 V Industrial Solenoid Valve Driver |
|
Use Scenario: PWM-based brightness control of halogen headlamps in commercial vehicles with 24 V supply. IC Role / Device Role / Timing Role: Low-side switch regulating lamp current; withstands load dump transients up to 55 V. Use Value: 55 V VDS rating provides 10 V margin above ISO 7637-2 Pulse 5a; logic-level gate allows direct connection to CAN/LIN node MCU outputs. |
Use Scenario: On/off control of 24 V pneumatic solenoid valves in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Solid-state replacement for electromechanical relays; switches 75 A inrush current during valve opening. Use Value: AEC-Q101 qualification ensures long-term reliability in industrial environments with vibration and wide temperature swings; 75 A continuous rating supports high-duty-cycle operation. |
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 |
|---|---|---|---|
| STL220N4LF5AG | RDS(on) = 3.3 mΩ @ 10 V, but requires 4.5 V min gate drive; no AEC-Q101 certification | Higher efficiency at 10 V gate bias, but unsuitable for automotive safety-critical use | Select only for non-automotive industrial applications where gate drive voltage ≥4.5 V is guaranteed |
| IRF1405PBF | RDS(on) = 5.3 mΩ @ 10 V; TO-220 package; no 175 °C rating or avalanche spec | Limited to 150 °C operation; higher thermal resistance (Rth(j-c) = 0.75 K/W) reduces power handling | Acceptable for cost-sensitive 12 V consumer applications with moderate thermal constraints |
Compared with STL220N4LF5AG and IRF1405PBF, BUK9E06-55B uniquely combines AEC-Q101 qualification, 175 °C operation, and verified 5 V logic-level drive-making it the only choice for automotive-grade 12 V/24 V load switching where reliability and thermal resilience are mandatory.
Availability
BUK9E06-55B is available at Aetrix Electronics and suitable for automotive door lock systems, engine cooling fans, headlamp dimming circuits, and industrial solenoid valve drivers requiring stable component supply across extended temperature and lifetime requirements.
Supply support for BUK9E06-55B 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.
The BUK9E series targets automotive power switching applications, specifically engineered for robustness in thermally demanding, safety-critical environments such as body control modules and power distribution units.
FAQ
Is BUK9E06-55B suitable for high-frequency PWM switching above 100 kHz?
No-its QGD of 22 nC and Ciss of 5.7–7.6 nF result in gate drive power and switching loss that limit practical operation to ≤50 kHz in hard-switched topologies. For >100 kHz, consider devices with lower QGD and optimized for RF switching.
Can BUK9E06-55B replace a mechanical relay in automotive applications?
Yes-it supports 75 A continuous and 587 A pulsed drain current, exceeds typical automotive relay contact ratings, and eliminates wear-out mechanisms. Its 679 mJ avalanche rating handles inductive kickback without external protection, making it ideal for solenoid and lamp loads.
What is the maximum safe mounting base temperature for continuous operation?
The mounting base temperature must not exceed 100 °C to maintain 75 A continuous current capability per Figure 1. At Tmb = 100 °C, ID remains 75 A due to package limitation-not junction heating-so heatsink design must ensure Tmb ≤ 100 °C under worst-case ambient and airflow.
Does the mounting base require electrical isolation from the PCB?
Yes-the mounting base is internally connected to the drain terminal. If the heatsink or chassis is grounded, the drain must be isolated using insulating thermal pads or mica washers rated for ≥55 V working voltage and 175 °C continuous operation.
BUK9E06-55B,127 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Packaging:
- Tube
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 75A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 5.4mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 2V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 60 nC @ 5 V
- Vgs (Max):
- ±15V
- Input Capacitance (Ciss) (Max) @ Vds:
- 7565 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 258W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- I2PAK
BUK9E06-55B,127 FAQ
1.How can I place an order for BUK9E06-55B,127 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK9E06-55B,127 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 BUK9E06-55B,127 reliable?
The price and inventory of BUK9E06-55B,127 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9E06-55B,127 is usually 5 days.
3.What payment methods are accepted for BUK9E06-55B,127?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9E06-55B,127 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK9E06-55B,127?
BUK9E06-55B,127 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK9E06-55B,127 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 BUK9E06-55B,127?
For technical support, including BUK9E06-55B,127 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9E06-55B,127 requirements.
6.How does Aetrix verify that BUK9E06-55B,127 is sourced from the original manufacturer or authorized distributors?
All BUK9E06-55B,127 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 BUK9E06-55B,127 meets industry standards.
7.What is the process for return or replacement of BUK9E06-55B,127?
All BUK9E06-55B,127 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9E06-55B,127, 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 BUK9E06-55B,127 part is unused and in its original packaging.
Return procedure for BUK9E06-55B,127:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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