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Nexperia USA Inc. BUK9275-100A,118
- Part No.:
- BUK9275-100A,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
BUK9275-100A,118.pdf
- Description:
- MOSFET N-CH 100V 21.7A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,161
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Product details
Overview
BUK9275-100A from Nexperia is a logic-level N-channel TrenchMOS FET in DPAK (SOT428) package, rated for 100 V drain-source voltage, 21.7 A continuous drain current at 25 °C mounting base temperature, and 88 W total power dissipation. It features 64–75 mΩ RDS(on) at VGS = 5 V and Tj = 25 °C, operates up to 175 °C junction temperature, and is AEC-Q101 qualified for automotive critical power switching.
For engineers reviewing the BUK9275-100A datasheet, BUK9275-100A pinout, BUK9275-100A application, or BUK9275-100A equivalent, key selection criteria include logic-level gate drive compatibility (VGS(th) = 1.0–2.0 V), low RDS(on) at 5 V drive, thermal robustness in 12 V/24 V automotive loads, and avalanche energy rating of 100 mJ.
Technical Context
This MOSFET employs TrenchMOS technology to achieve low on-resistance with logic-level gate drive capability-enabling direct interface with 3.3 V or 5 V microcontrollers without level-shifting. Its gate threshold voltage (1.0–2.0 V at 25 °C) and sub-threshold behavior ensure reliable turn-on under low-voltage control conditions.
The device integrates a monolithic source-drain diode with 0.85–1.2 V forward voltage at 10 A and exhibits 63 ns reverse recovery time, supporting moderate-frequency switching in inductive load circuits. Thermal resistance from junction to mounting base is 1.7 K/W, enabling high-power operation when mounted on thermally optimized PCB copper areas.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V maximum - supports 42 V automotive systems with ≥2× voltage margin against transients. |
| ID (continuous) | 21.7 A at Tmb = 25 °C - delivers >15 A at 100 °C mounting base, suitable for high-current solenoid or motor drivers. |
| RDS(on) | 64–75 mΩ at VGS = 5 V, ID = 10 A, Tj = 25 °C - enables <1 W conduction loss at 10 A, reducing heatsink requirements. |
| EAS | 100 mJ non-repetitive avalanche energy - protects against inductive kickback in relay and motor control without external snubbers. |
| Tj max | 175 °C - allows operation in engine bay environments and supports derating for long-term reliability in sealed enclosures. |
| QG | ~30 nC typical (from Fig 10) - enables fast switching with low gate drive power, compatible with standard MCU GPIOs via small buffer. |
| Ciss | 1268–1690 pF - determines gate drive strength requirement; manageable with 10 Ω external resistor for <100 ns switching transitions. |
Pinout & Package
Package: SOT428 (DPAK), plastic single-ended surface-mounted package with 3 leads (lead 1 cropped), featuring an exposed mounting base electrically connected to the drain terminal for enhanced thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control input; accepts 3.3 V/5 V logic levels; threshold 1.0–2.0 V ensures turn-on with standard MCU outputs. |
| 2 (D) | Drain | Main high-side or low-side power path; internally bonded to mounting base for low-inductance, high-current routing and thermal conduction. |
| 3 (S) | Source | Reference node for gate drive and current sensing; tied to system ground in low-side switch configurations. |
| Mounting Base (mb) | Drain connection | Exposed copper pad soldered to PCB thermal plane; provides primary thermal path (Rth(j-mb) = 1.7 K/W) and reduces parasitic inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | Operates fully enhanced with VGS ≥ 4.5 V - eliminates need for gate driver ICs in 5 V control systems. |
| AEC-Q101 qualification | Validated for automotive safety-critical applications including body control modules and engine management subsystems. |
| 175 °C junction rating | Enables deployment in under-hood locations without forced air cooling or oversized heatsinks. |
| Low RDS(on) at 5 V | 64–75 mΩ at VGS = 5 V - minimizes I²R losses in battery-powered and thermally constrained designs. |
| Integrated source-drain diode | VSD = 0.85–1.2 V at 10 A - supports freewheeling in DC motor and solenoid drivers without external diodes. |
Applications
| Automotive Body Control Module | 12 V Battery-Powered Actuator Driver |
|---|---|
|
Use Scenario: Controlling door locks, window lifters, and mirror adjusters in modern vehicles using centralized ECU with 5 V logic outputs. IC Role / Device Role / Timing Role: Low-side power switch handling 10–15 A peak loads with PWM duty cycling up to 1 kHz. Use Value: Direct 5 V MCU interface eliminates level shifters; 175 °C rating ensures reliability in sealed module housings near HVAC ducts. |
Use Scenario: Driving 12 V DC motors in portable medical pumps, handheld tools, and industrial handheld testers. IC Role / Device Role / Timing Role: High-efficiency main power switch with integrated freewheeling diode for brushed motor commutation. Use Value: 64–75 mΩ RDS(on) at 5 V reduces conduction loss by >30% vs. standard MOSFETs, extending battery runtime per charge cycle. |
| 42 V Mild Hybrid Starter-Generator Interface | Industrial 24 V Solenoid Control |
|
Use Scenario: Managing pre-charge and isolation paths in 42 V mild hybrid architectures where transient suppression and fault tolerance are critical. IC Role / Device Role / Timing Role: High-voltage, high-current isolation switch with avalanche ruggedness for load dump protection. Use Value: 100 mJ unclamped avalanche energy withstands ISO 7637-2 pulse 5a transients without failure, reducing system-level clamping component count. |
Use Scenario: Controlling pneumatic/hydraulic solenoids in factory automation PLC output modules operating from 24 V DC rails. IC Role / Device Role / Timing Role: Robust, thermally stable power switch handling repetitive 20 A inrush currents during valve actuation. Use Value: Rth(j-mb) = 1.7 K/W enables sustained 15 A operation on 2 oz copper with no heatsink - simplifying PCB layout and enclosure design. |
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 |
|---|---|---|---|
| STL130N10F7 | 100 V, 130 A (Tc = 25 °C), RDS(on) = 4.5 mΩ @ 10 V - requires 10 V gate drive; not logic-level. | Higher current capacity but incompatible with 3.3 V/5 V MCU direct drive; needs gate driver. | Select only if gate drive voltage ≥ 8 V is available and higher current density is required. |
| IRL1404ZPBF | 40 V, 165 A, RDS(on) = 3.4 mΩ @ 4.5 V - lower voltage rating; unsuitable for 42 V systems. | Limited to 12 V/24 V applications; lacks AEC-Q101 qualification and 175 °C rating. | Acceptable for non-automotive 24 V industrial use where cost is prioritized over qualification and thermal margin. |
Compared with STL130N10F7 and IRL1404ZPBF, the BUK9275-100A uniquely balances 100 V rating, true logic-level operation, AEC-Q101 compliance, and 175 °C capability-making it the only drop-in solution for automotive 12 V/24 V/42 V switching where MCU-level gate drive and under-hood reliability are mandatory.
Availability
BUK9275-100A is available at Aetrix Electronics and suitable for automotive body control modules, 12 V/24 V battery-powered actuator drivers, and industrial 24 V solenoid control systems requiring stable component supply across multi-year production cycles.
Supply support for BUK9275-100A 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, ESD protection, and logic ICs.
The BUK9275-100A belongs to Nexperia's TrenchMOS logic-level automotive power FET product line, engineered specifically for replacing electromechanical relays and discrete bipolar switches in harsh-environment vehicle subsystems.
FAQ
Is BUK9275-100A suitable for high-frequency PWM switching above 100 kHz?
Yes, with appropriate gate drive design. Its 1268–1690 pF Ciss, 139–167 pF Coss, and 90–124 pF Crss enable efficient switching up to 200 kHz when driven with ≤10 Ω series resistance. Measured td(on)/tr/td(off)/tf values (13/120/58/57 ns) confirm suitability for motor control and SMPS topologies where gate loss must remain below 50 mW at 100 kHz.
What is the maximum safe continuous current at 100 °C mounting base temperature?
Per Figure 1 in the datasheet, normalized continuous drain current drops to ~71% at Tmb = 100 °C, yielding 21.7 A × 0.71 ≈ 15.3 A. This value is explicitly listed in Table 4 (Limiting Values) and validated under VGS = 5 V, confirming safe operation without derating beyond datasheet curves.
Does the mounting base require electrical isolation from the PCB ground plane?
No-the mounting base is internally connected to the drain terminal (Pin 2), so it must be routed to the same net as the drain. Isolation would break the intended thermal and electrical path. For low-side switching, the mounting base connects to the high-voltage rail; for high-side, it connects to the load supply. Thermal vias to inner-layer copper planes are recommended.
Can BUK9275-100A replace older BUK9275-100B or BUK9275-100E variants?
Yes-BUK9275-100A supersedes earlier revisions with identical pinout, package, and electrical specifications. The Rev. 03 datasheet confirms functional equivalence and improved manufacturing consistency. No layout or firmware changes are needed for drop-in replacement in existing designs qualified to AEC-Q101.
BUK9275-100A,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 21.7A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 72mOhm @ 10A, 10V
- Vgs(th) (Max) @ Id:
- 2V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1690 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 88W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
BUK9275-100A,118 FAQ
1.How can I place an order for BUK9275-100A,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK9275-100A,118 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 BUK9275-100A,118 reliable?
The price and inventory of BUK9275-100A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9275-100A,118 is usually 5 days.
3.What payment methods are accepted for BUK9275-100A,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9275-100A,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK9275-100A,118?
BUK9275-100A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK9275-100A,118 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 BUK9275-100A,118?
For technical support, including BUK9275-100A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9275-100A,118 requirements.
6.How does Aetrix verify that BUK9275-100A,118 is sourced from the original manufacturer or authorized distributors?
All BUK9275-100A,118 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 BUK9275-100A,118 meets industry standards.
7.What is the process for return or replacement of BUK9275-100A,118?
All BUK9275-100A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9275-100A,118, 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 BUK9275-100A,118 part is unused and in its original packaging.
Return procedure for BUK9275-100A,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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