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Nexperia USA Inc. BUK7907-40ATC,127
- Part No.:
- BUK7907-40ATC,127
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-220-5
- Datasheet:
-
BUK7907-40ATC,127.pdf
- Description:
- MOSFET N-CH 40V 75A TO220-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,680
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Product details
Overview
BUK7907-40ATC from Nexperia is an AEC-Q101-qualified N-channel TrenchPLUS standard-level power MOSFET in TO-220 (SOT263B) package, featuring integrated temperature-sense diode (TSD), 40 V VDS, 75 A continuous drain current at Tmb = 25 °C, and 5.8 mΩ typical RDS(on) at VGS = 10 V and Tj = 25 °C. It is designed for automotive critical loads including EPAS and variable valve timing.
For engineers reviewing the BUK7907-40ATC datasheet, BUK7907-40ATC pinout, BUK7907-40ATC application, or BUK7907-40ATC equivalent, this page delivers verified thermal resistance (Rth(j-mb) = 0.55 K/W), clamping energy rating (1.4 J), gate charge (QG(tot) = 108 nC), and TSD forward voltage hysteresis (25–50 mV) - all essential for high-reliability motor control and load switching design.
Technical Context
This device implements TrenchMOS technology with integrated TrenchPLUS diodes for bidirectional clamping and precision junction temperature monitoring. Its gate threshold voltage (VGS(th)) ranges from 1 V at 175 °C to 4.4 V at –55 °C, enabling robust turn-on across automotive temperature extremes.
The 5-pin TO-220 package features isolated mounting base connected to drain, dedicated anode/cathode terminals for clamping diode, and source/gate pins optimized for low-inductance PCB layout. Thermal performance is defined by Rth(j-mb) = 0.55 K/W and Rth(j-a) = 60 K/W, supporting heatsink-mounted operation in demanding under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 40 V maximum - defines safe operating voltage ceiling for 12 V/24 V automotive systems with transient clamping |
| ID (continuous) | 75 A at Tmb = 25 °C - package-limited current rating requiring heatsink mounting for full output |
| RDS(on) | 5.8 mΩ typ at VGS = 10 V, ID = 50 A, Tj = 25 °C - enables <1 W conduction loss at 50 A |
| QG(tot) | 108 nC - determines gate driver strength requirement for <10 µs switching transitions in EPAS H-bridge |
| SF(TSD) | –1.54 mV/K typ - provides linear, calibrated temperature sensing with ±0.14 mV/K tolerance over –55 to +175 °C |
| EDS(CL) | 1.4 J non-repetitive clamping energy - supports safe inductive kickback absorption in solenoid and motor drive circuits |
| VF(TSD) | 658 mV typ at IF = 250 µA, Tj = 25 °C - establishes absolute reference point for on-die temperature measurement |
Pinout & Package
Package: TO-220 plastic single-ended package (SOT263B), heatsink-mounted with 1 mounting hole; drain-connected mounting base; 5-lead configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal for MOSFET channel; requires 10 V drive for full enhancement and minimal RDS(on) |
| 2 (A) | Anode | Anode of integrated clamping diode - connects to system ground or low-side return path for overvoltage protection |
| 3 (D) | Drain | Main power output node; electrically tied to mounting base for direct heatsink coupling and thermal management |
| 4 (K) | Cathode | Cathode of integrated clamping diode - connects to supply rail to clamp inductive transients during turn-off |
| 5 (S) | Source | Reference node for gate drive and current sensing; separate from mounting base to enable high-side or floating configurations |
Key Features
| Feature | Design Value |
|---|---|
| Integrated temperature sense diode (TSD) | Enables real-time junction temperature monitoring with ±0.5 °C accuracy via calibrated –1.54 mV/K coefficient |
| TrenchPLUS clamping diode | Provides bidirectional overvoltage protection without external components, rated for 50 mA pulsed clamping current |
| AEC-Q101 qualification | Validated for automotive safety-critical applications including EPAS and engine valve actuation per ISO/TS 16949 |
| Low RDS(on) × QG figure-of-merit | 622 Ω·nC - balances conduction efficiency and switching speed for 10–100 kHz motor control PWM |
| Isolated mounting base | Drain-connected heatsink interface with 0.55 K/W thermal resistance enables >200 W dissipation with forced-air cooling |
Applications
| Electrical Power Assisted Steering (EPAS) | Variable Valve Timing (VVT) |
|---|---|
Use Scenario: High-current, high-reliability switching of 12 V/24 V brushed or brushless steering motors during active torque assist. IC Role / Device Role / Timing Role: Main power switch in half-bridge or H-bridge motor driver stage; handles bidirectional current up to 75 A. Use Value: Integrated clamping diode absorbs inductive kickback during PWM commutation, eliminating need for external TVS and reducing BOM count by one component. |
Use Scenario: Driving oil-control solenoids in cam phasing actuators, requiring precise 10–100 ms pulse-width modulation at 12 V. IC Role / Device Role / Timing Role: Low-loss, fast-switching load switch controlling solenoid current with <10 µs turn-off delay. Use Value: On-die temperature sensor enables closed-loop thermal derating - prevents coil overheating during extended dwell periods in hot engine bays. |
| Engine Start-Stop System Load Switch | Automotive HVAC Blower Control |
Use Scenario: Managing high-inrush battery loads (e.g., fuel pump, starter relay) during cold cranking and restart events. IC Role / Device Role / Timing Role: Robust main switch handling 140 A peak drain current for <10 µs pulses with 1.4 J clamping energy absorption. Use Value: 6 kV HBM ESD rating and –55 to +175 °C operating range ensure reliability across extreme automotive ambient conditions. |
Use Scenario: Controlling DC blower motor speed in climate control systems using PWM-based analog dimming. IC Role / Device Role / Timing Role: High-efficiency power stage delivering 50 A continuous current with <5.8 mΩ conduction loss at 25 °C. Use Value: Low gate charge (108 nC) reduces driver IC power consumption and allows use of cost-effective 1 A gate drivers instead of 3 A alternatives. |
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, 220 A, 1.6 mΩ RDS(on), DFN8 5×6 mm package; no integrated TSD or clamping diode | Requires external temperature sensing and TVS for clamping; suited for space-constrained PCBs but not drop-in replacement | Select when board area is critical and thermal monitoring is handled externally via NTC or digital sensor |
| IRF1407PBF | 75 V, 120 A, 7.5 mΩ RDS(on), TO-220; no TSD, no clamping diode, not AEC-Q101 qualified | Lacks automotive qualification and integrated protection; suitable only for industrial non-safety-critical use | Choose only for cost-sensitive non-automotive applications where 40 V rating is insufficient and qualification is unnecessary |
Compared with STL220N4F7AG and IRF1407PBF, BUK7907-40ATC uniquely combines AEC-Q101 compliance, on-die temperature sensing, and integrated clamping in a single TO-220 package - eliminating three external components while ensuring functional safety in EPAS and VVT systems.
Availability
BUK7907-40ATC is available at Aetrix Electronics and suitable for Electrical Power Assisted Steering (EPAS), Variable Valve Timing (VVT), and engine start-stop system load switching requiring stable component supply, long-term automotive lifecycle support, and traceable sourcing.
Supply support for BUK7907-40ATC 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 specializing in high-volume, high-reliability discrete and logic devices, with core competencies in automotive, industrial, and mobile applications.
This part belongs to Nexperia's TrenchPLUS automotive MOSFET product line, engineered specifically for high-current, thermally demanding automotive subsystems requiring integrated protection and real-time thermal feedback.
FAQ
What is the maximum continuous drain current rating for BUK7907-40ATC?
The maximum continuous drain current is 75 A at mounting base temperature (Tmb) = 25 °C, limited by package thermal capability. At Tmb = 100 °C, it remains 75 A due to package derating ceiling - not junction temperature. This rating assumes proper heatsinking and is validated per Figure 2 in the datasheet.
How does the integrated temperature sense diode function in circuit design?
The TSD operates as a calibrated silicon diode with –1.54 mV/K temperature coefficient and 658 mV forward voltage at 25 °C. It is biased with constant 250 µA current; measured VF directly yields junction temperature with ±0.5 °C accuracy. No external calibration is required beyond initial offset trimming.
Can BUK7907-40ATC be used in high-side switch configurations?
Yes - its isolated source terminal (Pin 5) and drain-connected mounting base allow high-side implementation. Gate drive must be referenced to source (not ground), requiring a bootstrap or isolated gate driver. The 20 V VGS rating supports sufficient margin for typical 12 V automotive supply variations.
What clamping protection does BUK7907-40ATC provide, and how is it implemented?
It integrates a TrenchPLUS Zener-type clamping diode between drain and gate (V(BR)DG = 40 V) and gate-source (V(BR)GSS = 22 V), plus a dedicated anode/cathode pair (Pins 2 and 4) for external system-level clamping. This dual-path architecture protects against both internal gate oxide overstress and external inductive transients.
BUK7907-40ATC,127 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- TO-220-5
- Packaging:
- Tube
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 40 V
- Current - Continuous Drain (Id) @ 25°C:
- 75A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 7mOhm @ 50A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 108 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 4500 pF @ 25 V
- FET Feature:
- Temperature Sensing Diode
- Power Dissipation (Max):
- 272W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-5
BUK7907-40ATC,127 FAQ
1.How can I place an order for BUK7907-40ATC,127 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7907-40ATC,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 BUK7907-40ATC,127 reliable?
The price and inventory of BUK7907-40ATC,127 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7907-40ATC,127 is usually 5 days.
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BUK7907-40ATC,127 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7907-40ATC,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 BUK7907-40ATC,127?
For technical support, including BUK7907-40ATC,127 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7907-40ATC,127 requirements.
6.How does Aetrix verify that BUK7907-40ATC,127 is sourced from the original manufacturer or authorized distributors?
All BUK7907-40ATC,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 BUK7907-40ATC,127 meets industry standards.
7.What is the process for return or replacement of BUK7907-40ATC,127?
All BUK7907-40ATC,127 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7907-40ATC,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 BUK7907-40ATC,127 part is unused and in its original packaging.
Return procedure for BUK7907-40ATC,127:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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