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Nexperia USA Inc. BUK9Y15-100E,115
- Part No.:
- BUK9Y15-100E,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- SC-100, SOT-669
- Datasheet:
-
BUK9Y15-100E,115.pdf
- Description:
- MOSFET N-CH 100V 69A LFPAK56
- Quantity:
- Payment:
- Shipping:
Inventory:2,998
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Product details
Overview
BUK9Y15-100E from Nexperia is an AEC-Q101-qualified N-channel logic-level MOSFET in LFPAK56 (SOT669) package, rated for 100 V VDS, 15 mΩ RDS(on) at VGS = 5 V and Tj = 25 °C, and 175 °C junction operation. It delivers 69 A continuous drain current at Tmb = 25 °C and supports ultra-high-performance power switching in automotive transmission control and solenoid drivers.
For engineers reviewing the BUK9Y15-100E datasheet, BUK9Y15-100E pinout, BUK9Y15-100E application, or BUK9Y15-100E equivalent, key selection criteria include its true logic-level gate (VGS(th) > 0.5 V at 175 °C), repetitive avalanche rating, 0.77 K/W Rth(j-mb), and qualification for thermally demanding 12 V/24 V/48 V automotive systems.
Technical Context
This MOSFET uses TrenchMOS technology to achieve low RDS(on) with robust thermal performance in a surface-mount LFPAK56 package. Its mounting base is electrically connected to the drain, enabling direct thermal coupling to PCB copper planes while maintaining electrical isolation of source and gate terminals.
The device features a fully characterized body diode (VSD = 0.8–1.2 V at IS = 20 A, Tj = 25 °C; trr = 44 ns), specified avalanche energy (EAS = 110 mJ), and gate charge profile optimized for fast switching (QGD = 16 nC, QG(tot) = 45.8 nC) under 5 V logic drive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V - Maximum drain-source blocking voltage for 12 V/24 V/48 V automotive bus protection |
| RDS(on) | 12.1 mΩ (typ) at VGS = 5 V, ID = 20 A, Tj = 25 °C - Enables low conduction loss in high-current motor/solenoid drivers |
| ID | 69 A - Continuous drain current at Tmb = 25 °C, supporting high-power load switching without forced cooling |
| Tj max | 175 °C - Extended junction temperature rating allows reliable operation in engine bay or transmission control modules |
| Rth(j-mb) | 0.77 K/W - Low thermal resistance enables efficient heat transfer from die to PCB mounting base |
| VGS(th) | > 0.5 V at Tj = 175 °C - True logic-level threshold ensures turn-on compatibility with 3.3 V/5 V microcontrollers across full temp range |
| QGD | 16 nC - Gate-drain charge value directly impacts switching speed and EMI in hard-switched DC-DC or motor phases |
Pinout & Package
LFPAK56 (SOT669) is a 4-lead plastic single-ended surface-mount package with exposed mounting base for enhanced thermal performance. The mounting base is electrically connected to the drain terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Source (S) | Three parallel source pins reduce bond wire inductance and improve current sharing in high-di/dt applications |
| 4 | Gate (G) | Single gate input with low input capacitance (Ciss = 4604 pF typ) for stable 5 V logic-level drive |
| Mounting Base (mb) | Drain (D) | Exposed copper pad tied internally to drain - serves as primary thermal path and high-current return node |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and UHAST per JESD22-A108 |
| Repetitive avalanche rated | Rated for repeated unclamped inductive switching events up to 110 mJ (EAS) without degradation |
| 175 °C junction rating | Enables placement in high-ambient zones (e.g., near engines or transmissions) without derating penalties |
| True logic-level gate | VGS(th) remains > 0.5 V at 175 °C, ensuring guaranteed turn-on with standard 5 V MCU GPIOs |
| Low Rth(j-mb) | 0.77 K/W thermal resistance allows > 100 W dissipation on 2 oz copper with 20 cm² thermal pad |
Applications
| Transmission Control Module | Motor Driver for HVAC Blower |
|---|---|
|
Use Scenario: High-side switching of solenoid actuators in automatic transmission valve bodies operating at 12 V nominal with peak transients to 48 V. IC Role / Device Role / Timing Role: N-channel high-side switch with external bootstrap or isolated gate driver; handles 30 A pulsed loads with <10 µs switching transitions. Use Value: Repetitive avalanche rating absorbs inductive kickback from solenoids; 175 °C rating sustains operation during extended gear-shift cycles under hood temperatures. |
Use Scenario: PWM-controlled DC motor driving cabin air blower in automotive HVAC system, requiring 25 A continuous current at 12 V. IC Role / Device Role / Timing Role: Low-side switching element in half-bridge configuration; driven by 5 V MCU PWM with 20 kHz switching frequency. Use Value: 12.1 mΩ RDS(on) minimizes I²R losses at full load; low QGD (16 nC) reduces switching losses and EMI generation. |
| 48 V Mild Hybrid Starter Generator | LED Headlamp Matrix Driver |
|
Use Scenario: Power switching in 48 V starter-generator inverters where compact size and thermal efficiency are critical in confined engine bay space. IC Role / Device Role / Timing Role: Phase-leg switch in 3-phase inverter; operated with gate drivers delivering 5 V logic-level signals and <5 Ω source impedance. Use Value: LFPAK56 package provides 3× lower Rth(j-mb) vs. SO-8, enabling higher power density without heatsinks; 100 V rating accommodates 48 V bus transients. |
Use Scenario: Individual channel switching for adaptive LED headlamp matrix modules, each controlling 1–3 high-brightness LEDs at 12 V. IC Role / Device Role / Timing Role: Low-side current sink for LED strings; switched at 1 kHz for dimming with precise current regulation via external sense resistor. Use Value: Tight VGS(th) distribution (1.4–2.1 V at 25 °C) ensures consistent turn-on across channels; low RDS(on) reduces thermal footprint per channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel automotive MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL220N6F7 | 60 V VDS, 1.3 mΩ RDS(on) at 10 V, not AEC-Q101 qualified, PowerFLAT 5x6 package | Limited to 24 V systems; lacks automotive qualification and 100 V margin for 48 V transients | Select only for cost-sensitive non-automotive 24 V industrial motor control where qualification is not required |
| IRF3205PBF | 55 V VDS, 8 mΩ RDS(on) at 10 V, TO-220 package, no AEC-Q101, no avalanche rating | Requires heatsink; unsuitable for surface-mount automotive modules; no thermal or reliability validation for automotive use | Use only in legacy 12 V prototyping where through-hole assembly and manual heatsinking are acceptable |
Compared with STL220N6F7 and IRF3205PBF, BUK9Y15-100E uniquely combines 100 V rating, AEC-Q101 qualification, 175 °C operation, and LFPAK56's superior thermal performance-making it the only viable choice for production 48 V automotive power stages requiring zero derating at elevated ambient temperatures.
Availability
BUK9Y15-100E is available at Aetrix Electronics and suitable for automotive transmission control, 48 V mild hybrid inverters, and LED headlamp matrix drivers requiring stable component supply across multi-year vehicle production lifecycles.
Supply support for BUK9Y15-100E 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.
BUK9Y15-100E belongs to Nexperia's LFPAK automotive MOSFET product line, engineered specifically for high-efficiency, high-temperature power switching in next-generation 12 V/24 V/48 V automotive subsystems.
FAQ
Is BUK9Y15-100E suitable for high-side switching configurations?
Yes, BUK9Y15-100E can be used in high-side configurations when paired with a gate driver capable of providing VGS ≥ 5 V relative to the source node. Its 100 V VDS rating and 175 °C junction capability make it appropriate for 12 V/24 V/48 V automotive high-side loads such as solenoids and fuel pumps, provided gate drive voltage exceeds threshold across temperature.
What is the maximum continuous drain current at 100 °C mounting base temperature?
Per Figure 2 of the datasheet, the continuous drain current (ID) is derated to 49 A at Tmb = 100 °C. This reflects thermal limitation rather than electrical saturation, and assumes proper PCB copper area and thermal vias to maintain mounting base temperature.
Does BUK9Y15-100E have an integrated body diode, and what are its recovery characteristics?
Yes, it includes a monolithic source-drain body diode with VSD = 0.8–1.2 V at IS = 20 A and Tj = 25 °C, and reverse recovery time (trr) of 44 ns. The diode is fully characterized for synchronous rectification and freewheeling in inductive switching applications.
Can BUK9Y15-100E replace older SO-8 MOSFETs without PCB layout changes?
No-BUK9Y15-100E uses LFPAK56 (SOT669), which has different pad dimensions and thermal pad geometry than standard SO-8. While pin count matches (4 leads), the mounting base requires dedicated thermal land pattern per Nexperia's SOT669 footprint guidelines; direct drop-in replacement is not mechanically or thermally feasible.
BUK9Y15-100E,115 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:
- 69A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 5V, 10V
- Rds On (Max) @ Id, Vgs:
- 14.7mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id:
- 2.1V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 45.8 nC @ 5 V
- Vgs (Max):
- ±10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 6139 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 195W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LFPAK56, Power-SO8
BUK9Y15-100E,115 FAQ
1.How can I place an order for BUK9Y15-100E,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK9Y15-100E,115 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 BUK9Y15-100E,115 reliable?
The price and inventory of BUK9Y15-100E,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9Y15-100E,115 is usually 5 days.
3.What payment methods are accepted for BUK9Y15-100E,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9Y15-100E,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK9Y15-100E,115?
BUK9Y15-100E,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK9Y15-100E,115 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 BUK9Y15-100E,115?
For technical support, including BUK9Y15-100E,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9Y15-100E,115 requirements.
6.How does Aetrix verify that BUK9Y15-100E,115 is sourced from the original manufacturer or authorized distributors?
All BUK9Y15-100E,115 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 BUK9Y15-100E,115 meets industry standards.
7.What is the process for return or replacement of BUK9Y15-100E,115?
All BUK9Y15-100E,115 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9Y15-100E,115, 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 BUK9Y15-100E,115 part is unused and in its original packaging.
Return procedure for BUK9Y15-100E,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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