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Nexperia USA Inc. BUK7Y22-100EX
- Part No.:
- BUK7Y22-100EX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- SC-100, SOT-669
- Datasheet:
-
BUK7Y22-100EX.pdf
- Description:
- MOSFET N-CH 100V 49A LFPAK56
- Quantity:
- Payment:
- Shipping:
Inventory:8,115
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Product details
Overview
BUK7Y22-100EX from Nexperia is a standard-level N-channel TrenchMOS power MOSFET in LFPAK56 (SOT669) package, rated for 100 V VDS, 22 mΩ RDS(on) at 10 V VGS and 25 °C, and qualified to AEC-Q101 for automotive use. It delivers 49 A continuous drain current at Tmb = 25 °C, supports repetitive avalanche operation, and operates up to 175 °C junction temperature - deployed in transmission control and high-reliability 12–48 V automotive power switching.
For engineers reviewing the BUK7Y22-100EX datasheet, BUK7Y22-100EX pinout, BUK7Y22-100EX application, or BUK7Y22-100EX equivalent, key selection criteria include its true standard-level gate (VGS(th) > 1 V at 175 °C), low thermal resistance (Rth(j-mb) = 1.02 K/W), and mounting-base–referenced power dissipation capability.
Technical Context
This MOSFET uses TrenchMOS technology to achieve low RDS(on) with robust avalanche ruggedness (EAS = 81 mJ, unclamped) and stable threshold voltage across temperature (VGS(th) ≥ 1 V up to 175 °C). Its LFPAK56 package integrates a thermally optimized mounting base directly connected to the drain, enabling efficient heat transfer to PCB copper.
The device features a source-connected triple-pin configuration (Pins 1–3), single gate terminal (Pin 4), and drain-connected mounting base - supporting high-current, low-inductance layouts in space-constrained automotive modules. Dynamic parameters include QGD = 17 nC and Ciss = 2190–2920 pF, indicating fast switching suitability with controlled EMI in PWM-driven solenoid and motor control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V maximum - supports full 48 V automotive bus transients and ISO 7637-2 pulse 5a without derating. |
| RDS(on) | 14.2 mΩ typical at VGS = 10 V, ID = 15 A, Tj = 25 °C - enables <1.5 W conduction loss at 40 A, reducing heatsink requirements. |
| ID (continuous) | 49 A at Tmb = 25 °C - usable up to 35 A at Tmb = 100 °C per derating curve, suitable for sustained load switching. |
| Ptot | 147 W at Tmb = 25 °C - enabled by low Rth(j-mb) = 1.02 K/W, allowing direct PCB thermal coupling without external heatsinks. |
| VGS(th) | ≥1 V at Tj = 175 °C - ensures reliable turn-on with standard 5 V or 3.3 V logic drivers under worst-case thermal stress. |
| QGD | 17 nC - balances switching speed and voltage overshoot in hard-switched 12–48 V DC loads like fuel injectors and HVAC actuators. |
| EAS | 81 mJ (unclamped, single-pulse) - provides inherent protection against inductive kickback in solenoid and motor drive circuits. |
Pinout & Package
LFPAK56 (SOT669) is a surface-mount, thermally enhanced plastic package with exposed drain mounting base. Its 4-terminal layout prioritizes low-inductance source return and direct thermal path to PCB copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Source (S) | Three parallel source pins reduce bond-wire inductance and increase current-carrying capacity - critical for high di/dt motor/solenoid switching. |
| 4 | Gate (G) | Single gate input with low QG(tot) = 47 nC - compatible with standard gate drivers without requiring high peak current capability. |
| Mounting Base | Drain (D) | Exposed copper pad electrically and thermally connected to drain - must be soldered to large PCB copper area for thermal and electrical performance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and UHAST - required for engine bay and transmission control modules. |
| Repetitive avalanche rated | Rated for repeated unclamped inductive switching events - eliminates need for external snubbers in solenoid driver designs. |
| 175 °C maximum junction temperature | Enables operation in under-hood environments without thermal shutdown - supports compact packaging in ECUs with limited airflow. |
| True standard-level gate | VGS(th) > 1 V at 175 °C ensures gate drive compatibility with 3.3 V/5 V microcontrollers without level-shifting circuitry. |
| Low Rth(j-mb) | 1.02 K/W thermal resistance enables >90% of heat to flow directly from junction to PCB - reduces system thermal margin risk vs. SO-8 alternatives. |
Applications
| Transmission Control Module | Fuel Injector Driver |
|---|---|
Use Scenario: High-side or low-side switching of electromagnetic shift solenoids in automatic transmissions, operating continuously at 12–48 V with frequent PWM cycles. IC Role / Device Role / Timing Role: Power switch controlling solenoid coil current; handles repetitive 10–100 Hz PWM with peak currents up to 40 A. Use Value: Low RDS(on) minimizes steady-state power loss (<2 W), while avalanche rating absorbs back-EMF during rapid current interruption. |
Use Scenario: Low-side driver for gasoline/diesel fuel injectors in engine management systems, exposed to harsh under-hood temperatures. IC Role / Device Role / Timing Role: Fast-turning power switch delivering precise 0.5–5 ms injection pulses with minimal tail current. Use Value: 17 nC QGD and 35 ns td(off) enable clean turn-off; 175 °C rating ensures timing stability across ambient -40 °C to +125 °C. |
| HVAC Blower Motor Control | Electric Power Steering (EPS) Assist Circuit |
Use Scenario: PWM-controlled 24 V blower motor in automotive HVAC systems, subject to vibration, humidity, and thermal cycling. IC Role / Device Role / Timing Role: Low-side switch modulating motor speed via 1–20 kHz PWM; conducts up to 35 A continuous. Use Value: Triple-source pins reduce parasitic inductance, suppressing voltage spikes during commutation; AEC-Q101 qualification ensures long-term field reliability. |
Use Scenario: Auxiliary power switch in EPS assist motor control, handling intermittent 40 A peak loads during steering torque amplification. IC Role / Device Role / Timing Role: High-current, high-reliability switching element in safety-critical assist path - requires fail-safe thermal behavior. Use Value: 81 mJ EAS withstands motor regeneration events; 1.02 K/W Rth(j-mb) maintains safe Tj under burst-load conditions. |
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 |
|---|---|---|---|
| STL220N10F7 | 100 V, 2.2 mΩ RDS(on) at 10 V, but only 175 °C rated in DFN8 5×6 package - no mounting base; higher Rth(j-a). | Higher efficiency at low current, but less robust thermal path in high-power automotive modules. | Prefer when board space is constrained and thermal design uses active cooling; avoid where mounting-base conduction is primary heat path. |
| IRF1010EZPBF | 100 V, 12 mΩ RDS(on), TO-220 package, not AEC-Q101 qualified - max Tj = 175 °C but lacks automotive stress testing. | Suitable for industrial prototypes, but not certified for production automotive ECUs. | Select only for non-safety-critical 12 V systems outside automotive OEM supply chain; verify qualification status per program requirements. |
Compared with STL220N10F7 and IRF1010EZPBF, BUK7Y22-100EX uniquely combines AEC-Q101 qualification, mounting-base thermal interface, and triple-source low-inductance layout - making it the preferred choice for volume automotive power switching where reliability, thermal performance, and EMI control are jointly critical.
Availability
BUK7Y22-100EX is available at Aetrix Electronics and suitable for automotive transmission control, fuel injector driving, and HVAC blower motor applications requiring stable component supply across multi-year vehicle production lifecycles.
Supply support for BUK7Y22-100EX 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 and logic devices, with leadership in automotive-qualified MOSFETs and ESD protection.
BUK7Y22-100EX belongs to Nexperia's LFPAK automotive power MOSFET family, engineered specifically for thermally demanding, safety-conscious automotive subsystems requiring AEC-Q101 compliance and robust avalanche performance.
FAQ
Is BUK7Y22-100EX pin-compatible with other LFPAK56 MOSFETs?
Yes - BUK7Y22-100EX uses the standard SOT669 footprint with identical pin assignment (Pins 1–3 = Source, Pin 4 = Gate, mounting base = Drain). It shares mechanical and solder-reflow compatibility with all Nexperia LFPAK56 N-channel MOSFETs, enabling drop-in replacement within the same voltage/current class.
What is the maximum recommended PCB copper area for the mounting base?
Nexperia recommends a minimum 200 mm² isolated copper pour connected to the mounting base via ≥6 thermal vias (0.3 mm diameter, filled or plated) to an internal ground plane. Larger areas improve Ptot derating - 400 mm² enables ~120 W at Tmb = 25 °C per Figure 2 in the datasheet.
Does BUK7Y22-100EX require a gate resistor for automotive PWM operation?
A gate resistor (typically 5–22 Ω) is recommended to damp ringing and limit peak gate current during fast switching. The datasheet specifies td(on)/td(off) test conditions using RG(ext) = 5 Ω - omitting it risks oscillation and gate driver overstress in noisy automotive environments.
Can BUK7Y22-100EX be used in synchronous rectification?
No - BUK7Y22-100EX is a standard-level MOSFET (VGS(th) > 1 V at 175 °C) and lacks the low-threshold, fast-body-diode characteristics required for synchronous rectifier control. Its body diode has trr = 39 ns and Qr = 64 nC - suitable for freewheeling, not active rectification.
BUK7Y22-100EX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- SC-100, SOT-669
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 49A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 22mOhm @ 15A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 47 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2920 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 147W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LFPAK56, Power-SO8
BUK7Y22-100EX FAQ
1.How can I place an order for BUK7Y22-100EX through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7Y22-100EX 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 BUK7Y22-100EX reliable?
The price and inventory of BUK7Y22-100EX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7Y22-100EX is usually 5 days.
3.What payment methods are accepted for BUK7Y22-100EX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7Y22-100EX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7Y22-100EX?
BUK7Y22-100EX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7Y22-100EX 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 BUK7Y22-100EX?
For technical support, including BUK7Y22-100EX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7Y22-100EX requirements.
6.How does Aetrix verify that BUK7Y22-100EX is sourced from the original manufacturer or authorized distributors?
All BUK7Y22-100EX 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 BUK7Y22-100EX meets industry standards.
7.What is the process for return or replacement of BUK7Y22-100EX?
All BUK7Y22-100EX units undergo pre-shipment inspection (PSI). If there is an issue with BUK7Y22-100EX, 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 BUK7Y22-100EX part is unused and in its original packaging.
Return procedure for BUK7Y22-100EX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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