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Nexperia USA Inc. BUK9E06-55A,127

Part No.:
BUK9E06-55A,127
Manufacturer:
Nexperia USA Inc.
Category:
FETs, MOSFETs
Package:
TO-262-3 Long Leads, I2PAK, TO-262AA
Datasheet:
AetrixBUK9E06-55A,127.pdf
Description:
MOSFET N-CH 55V 75A I2PAK
Quantity:
Payment:
Payment
Shipping:
Shipping

Inventory:2,614

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Product details

Overview

BUK9E06-55A from Nexperia is a logic-level 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. It delivers 4.8 mΩ RDS(on) at VGS = 10 V and is AEC-Q101 qualified for automotive critical power switching.

For engineers reviewing the BUK9E06-55A datasheet, BUK9E06-55A pinout, BUK9E06-55A application, or BUK9E06-55A equivalent, this device supports high-current 12 V/24 V load control with low gate-drive voltage compatibility, thermal robustness in engine bay environments, and unclamped avalanche energy handling up to 1.1 J.

Technical Context

This MOSFET employs TrenchMOS technology to achieve low on-resistance and fast switching with gate threshold voltage of 1.0–2.0 V at 25 °C. Its internal drain and source inductances (2.5–4.5 nH and 7.5 nH) are specified for accurate SOA modeling in high-di/dt automotive circuits.

The device features an integrated source-drain diode with 0.85 V forward voltage at 30 A and 80 ns reverse recovery time, enabling synchronous rectification and freewheeling in motor drive H-bridges without external diodes.

Key Specifications

Parameter Value and Actual Design Meaning
VDS 55 V - Maximum blocking voltage for 12 V/24 V automotive systems with transient margin
RDS(on) 4.8 mΩ (typ) at VGS = 10 V, 25 °C - Enables <1 W conduction loss at 45 A DC load current
ID (cont) 75 A at Tmb = 25 °C - Package-limited current suitable for high-power solenoid and lamp drivers
EAS 1.1 J (unclamped) - Supports single-pulse inductive energy absorption in relay and motor turn-off
Tj max 175 °C - Enables operation in under-hood environments without derating below ambient 125 °C
Rth(j-mb) 0.5 K/W - Low thermal resistance enables direct heatsink mounting for high-power dissipation
VGS(th) 1.5 V (typ) - Compatible with 3.3 V and 5 V microcontroller GPIOs without level-shifting

Pinout & Package

Package: I2PAK (SOT226), plastic single-ended TO-262 variant with isolated mounting base electrically connected to drain.

Pin/Terminal Circuit Role Design Meaning
1 (G) Gate Logic-level input terminal; accepts 3.3 V/5 V drive; 6500 pF input capacitance affects gate driver sizing
2 (D) Drain Main high-side switching node; internally bonded to mounting base for low-inductance heatsink coupling
3 (S) Source Power return path; 7.5 nH internal inductance impacts switching waveform fidelity in high-frequency PWM
Mounting Base (mb) Drain Connection Electrically tied to drain pin; provides primary thermal path to heatsink; requires isolation if drain is not chassis-ground referenced

Key Features

Feature Design Value
Logic-level gate drive Operates fully enhanced at VGS ≥ 4.5 V, eliminating need for gate driver ICs in MCU-driven 12 V systems
AEC-Q101 qualification Validated for automotive safety-critical applications including body control modules and engine management subsystems
175 °C junction rating Permits uninterrupted operation in high-ambient under-hood locations without thermal shutdown or derating
Low RDS(on) × Qg product Enables efficient high-frequency switching in BLDC motor inverters with reduced gate drive losses
Unclamped avalanche ruggedness Withstands 1.1 J single-pulse energy, allowing reliable operation in inductive load switching without snubbers

Applications

Automotive Body Control Module 12 V/24 V Solenoid Driver

Use Scenario: Controlling door lock actuators, headlight relays, and HVAC flaps in modern vehicle BCMs.

IC Role / Device Role / Timing Role: High-side power switch managing 10–40 A resistive/inductive loads with PWM or on/off control.

Use Value: Eliminates external flyback diode and reduces PCB area by integrating robust avalanche capability and low RDS(on).

Use Scenario: Driving fuel injectors, transmission shift solenoids, and ABS modulator valves in powertrain systems.

IC Role / Device Role / Timing Role: Fast-turning, thermally stable switch delivering precise 1–10 ms pulse widths at 12 V/24 V.

Use Value: 80 ns trr and 235 ns tf enable clean current commutation; 175 °C rating ensures reliability across engine temperature cycles.

Off-Road Vehicle Lighting System Industrial 24 V DC Motor Starter

Use Scenario: Switching high-intensity LED arrays and halogen work lamps in construction and agricultural equipment.

IC Role / Device Role / Timing Role: Low-loss main power switch handling 30–60 A steady-state current with surge tolerance.

Use Value: 4.8 mΩ RDS(on) limits conduction loss to <1.1 W at 48 A, reducing heatsink requirements in sealed enclosures.

Use Scenario: Starting brushed DC motors in material handling systems, pumps, and compressors.

IC Role / Device Role / Timing Role: High-current inrush limiter and run-control switch with peak current capability up to 616 A.

Use Value: 616 A IDM and 300 W Ptot support motor stall conditions without failure; I2PAK package enables mechanical robustness in vibration-prone environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel logic-level power switching applications.

Alternative Part Technical Difference Application Difference Selection Advice
STL220N4LF6AG 60 V VDS, 220 A ID, 1.8 mΩ RDS(on) - higher current, lower RDS(on), but larger H2PAK-6 package Requires larger PCB footprint and different heatsink interface; better suited for 48 V systems Select when >100 A continuous current or <2 mΩ RDS(on) is required; verify gate drive strength for 22 nC Qg
IRF1404ZLPBF 40 V VDS, 184 A ID, 3.8 mΩ RDS(on) - lower voltage rating, no AEC-Q101 qualification Not qualified for automotive use; limited to industrial 12 V/24 V non-safety-critical loads Choose only for cost-sensitive non-automotive applications where 55 V margin is unnecessary and qualification is not mandated

Compared with STL220N4LF6AG and IRF1404ZLPBF, the BUK9E06-55A uniquely balances AEC-Q101 compliance, 55 V rating, compact I2PAK footprint, and 75 A capability-making it optimal for space-constrained automotive 12 V/24 V modules requiring production-grade reliability.

Availability

BUK9E06-55A is available at Aetrix Electronics and suitable for automotive body control modules, 24 V solenoid actuation, and off-road lighting systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BUK9E06-55A 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.

The BUK9E series targets automotive power switching applications, designed specifically for AEC-Q101 compliance, thermally demanding environments, and logic-level gate drive simplicity in 12 V/24 V systems.

FAQ

What is the maximum continuous drain current for BUK9E06-55A at 100 °C mounting base temperature?

At Tmb = 100 °C, the continuous drain current is derated to 75 A per Figure 1 in the datasheet. This limit is package-constrained-not silicon-limited-and remains constant from 25 °C to 100 °C before declining above that point due to thermal resistance effects.

Does BUK9E06-55A require an external freewheeling diode when driving inductive loads?

No external diode is required for basic freewheeling: the integrated source-drain diode has 0.85 V forward voltage at 30 A and 80 ns reverse recovery time. However, for high-efficiency synchronous rectification or fast-recovery requirements, an external Schottky diode may still be preferred.

Can BUK9E06-55A be driven directly from a 3.3 V microcontroller GPIO?

Yes-its typical VGS(th) is 1.5 V and RDS(on) is 6.3 mΩ at VGS = 5 V and 25 °C. At 3.3 V, RDS(on) rises to ~10–12 mΩ, which is acceptable for ≤30 A loads where <1 W conduction loss is tolerable; verify thermal margin in final layout.

What is the safe operating area (SOA) limitation for repetitive pulsed operation?

The SOA curve (Figure 3) shows that at VDS = 30 V, the device supports 75 A continuous or 616 A for 10 µs pulses. For repetitive pulses, thermal accumulation must be evaluated using Zth(j-mb) = 0.5 K/W and duty cycle; sustained >10% duty cycle at >50 A requires active heatsinking.

BUK9E06-55A,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:
5.8mOhm @ 25A, 10V
Vgs(th) (Max) @ Id:
2V @ 1mA
Gate Charge (Qg) (Max) @ Vgs:
-
Vgs (Max):
±15V
Input Capacitance (Ciss) (Max) @ Vds:
8600 pF @ 25 V
FET Feature:
-
Power Dissipation (Max):
300W (Tc)
Operating Temperature:
-55°C ~ 175°C (TJ)
Grade:
Automotive
Qualification:
AEC-Q101
Mounting Type:
Through Hole
Supplier Device Package:
I2PAK

BUK9E06-55A,127 FAQ

1.How can I place an order for BUK9E06-55A,127 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK9E06-55A,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 BUK9E06-55A,127 reliable?

The price and inventory of BUK9E06-55A,127 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9E06-55A,127 is usually 5 days.

3.What payment methods are accepted for BUK9E06-55A,127?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9E06-55A,127 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK9E06-55A,127?

BUK9E06-55A,127 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK9E06-55A,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 BUK9E06-55A,127?

For technical support, including BUK9E06-55A,127 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9E06-55A,127 requirements.

6.How does Aetrix verify that BUK9E06-55A,127 is sourced from the original manufacturer or authorized distributors?

All BUK9E06-55A,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 BUK9E06-55A,127 meets industry standards.

7.What is the process for return or replacement of BUK9E06-55A,127?

All BUK9E06-55A,127 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9E06-55A,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 BUK9E06-55A,127 part is unused and in its original packaging.

Return procedure for BUK9E06-55A,127:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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