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Nexperia USA Inc. BUK9214-30A,118
- Part No.:
- BUK9214-30A,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
BUK9214-30A,118.pdf
- Description:
- MOSFET N-CH 30V 63A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:4,831
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Product details
Overview
BUK9214-30A from Nexperia is a logic-level N-channel TrenchMOS FET in DPAK (SOT428) package, rated for 30 V drain-source voltage, 63 A continuous drain current at 25 °C mounting base temperature, and 175 °C junction operation. It delivers 15.5 mΩ RDS(on) at VGS = 4.5 V and Tj = 25 °C, and is AEC-Q101 qualified for automotive critical power switching in 12 V systems.
For engineers reviewing the BUK9214-30A datasheet, BUK9214-30A pinout, BUK9214-30A application, or BUK9214-30A equivalent, this device supports thermally demanding automotive loads including motors, lamps, and solenoids with low gate-drive voltage compatibility and robust avalanche energy handling (230 mJ).
Technical Context
This MOSFET employs TrenchMOS technology to achieve low on-resistance and fast switching performance. Its gate threshold voltage ranges from 0.5 V (Tj = 175 °C) to 2.3 V (Tj = −55 °C), enabling reliable turn-on with 4.5–5 V logic-level drivers. The device integrates a source-drain diode with 0.85–1.2 V forward voltage at 20 A and 83 ns reverse recovery time.
Thermal design is supported by a 1.4 K/W junction-to-mounting-base thermal resistance and 107 W total power dissipation at Tmb = 25 °C. Dynamic parameters include 31 nC total gate charge, 12.2 nC gate-drain charge, and 1730–2317 pF input capacitance - all specified at VDS = 24–25 V and Tj = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 30 V maximum - supports full 12 V automotive battery transient margin (e.g., load dump up to 30 V) |
| ID (continuous) | 63 A at Tmb = 25 °C - enables high-current switching without external heatsinking in moderate-duty cycles |
| RDS(on) | 11–14 mΩ at VGS = 5 V, ID = 25 A, Tj = 25 °C - minimizes conduction loss in 12 V motor/solenoid drive stages |
| EAS | 230 mJ non-repetitive avalanche energy - withstands inductive kickback from solenoids and relay coils without clamping circuitry |
| Tj max | 175 °C - ensures stable operation in engine bay or under-hood environments with minimal derating |
| QG(tot) | 31 nC - compatible with standard microcontroller GPIOs driving via ≤10 Ω series resistor for controlled turn-on/turn-off |
| Rth(j-mb) | 1.4 K/W - allows direct PCB copper pour mounting to dissipate >100 W with <150 K temperature rise across junction-to-base interface |
Pinout & Package
Package: SOT428 (DPAK), plastic single-ended surface-mounted package with 3 leads (lead 1 cropped); mounting base (mb) is electrically connected to drain and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal accepting 4.5–15 V logic-level signals; 2 nA leakage at 10 V enables low-power drive |
| 2 (D) | Drain | High-side or low-side power switch node; internally bonded to mounting base for thermal and electrical connection |
| 3 (S) | Source | Reference node for gate drive and current sensing; forms cathode of integrated body diode |
| Mounting Base (mb) | Drain extension | Primary thermal interface and low-inductance drain connection; must be soldered to ≥100 mm² copper area for rated power handling |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive safety-critical applications including engine control, chassis, and body electronics |
| Logic-level gate drive | Guaranteed turn-on with 4.5 V supply - eliminates need for gate driver ICs in MCU-based 12 V systems |
| 175 °C junction rating | Enables operation in under-hood environments without thermal shutdown in intermittent duty cycles |
| Low RDS(on) @ 5 V | 11–14 mΩ at VGS = 5 V reduces I²R losses by >40% vs. standard 10 V gate MOSFETs in same package |
| Integrated source-drain diode | 1.2 V VSD at 20 A supports freewheeling in inductive loads without external flyback diode |
Applications
| Automotive Door Lock Actuator | 12 V LED Headlamp Driver |
|---|---|
|
Use Scenario: Driving dual-coil solenoids to engage/disengage door lock mechanisms in OEM vehicle platforms. IC Role / Device Role / Timing Role: Low-side power switch controlling 12 V solenoid current (peak 40 A, 100 ms pulse). Use Value: 230 mJ avalanche energy absorbs coil back-EMF without snubber, while 175 °C rating prevents thermal failure during repeated actuation. |
Use Scenario: PWM dimming and on/off control of high-brightness LED arrays in adaptive front lighting systems (AFS). IC Role / Device Role / Timing Role: High-efficiency, low-noise switching element in constant-current LED driver stage. Use Value: 11–14 mΩ RDS(on) at 5 V gate drive minimizes conduction loss and thermal stress during 100% duty cycle operation. |
| Engine Cooling Fan Controller | Start-Stop System Solenoid Interface |
|
Use Scenario: Controlling brushed DC cooling fans (up to 60 A) in response to ECU temperature feedback signals. IC Role / Device Role / Timing Role: High-current, thermally robust power switch interfacing between MCU PWM output and fan motor. Use Value: 1.4 K/W Rth(j-mb) enables direct PCB copper thermal coupling, sustaining 63 A continuous current with <100 K junction rise. |
Use Scenario: Engaging starter motor solenoid during engine restart in 12 V stop-start systems. IC Role / Device Role / Timing Role: High-reliability, fast-turn-on switch replacing electromechanical relays for solenoid activation. Use Value: 10 ns turn-on delay and 85 ns rise time ensure precise timing alignment with crankshaft position sensor signals for seamless restarts. |
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 |
|---|---|---|---|
| STL220N3LLH6 | 30 V, 220 A, 1.4 mΩ RDS(on) @ 10 V; requires 10 V gate drive for rated performance | Higher current capacity but not logic-level optimized - needs gate driver for 5 V MCU interfaces | Select when system uses 10 V gate bias and demands higher peak current capability |
| IRL1404ZPBF | 40 V, 165 A, 4.8 mΩ RDS(on) @ 10 V; Q101 not claimed; 150 °C Tj max | Broader voltage margin but lower thermal endurance and no automotive qualification | Select for industrial 12 V/24 V non-automotive applications where AEC-Q101 is not required |
Compared with STL220N3LLH6 and IRL1404ZPBF, the BUK9214-30A uniquely combines AEC-Q101 qualification, true 4.5 V logic-level operation, 175 °C junction rating, and 230 mJ avalanche ruggedness - making it the only drop-in solution for thermally constrained, safety-critical automotive 12 V switching without gate driver overhead.
Availability
BUK9214-30A is available at Aetrix Electronics and suitable for automotive door lock actuators, 12 V LED headlamp drivers, and engine cooling fan controllers requiring stable component supply across multi-year production programs.
Supply support for BUK9214-30A 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-grade components and advanced packaging.
The BUK9214-30A belongs to Nexperia's TrenchMOS logic-level automotive power MOSFET product line, engineered specifically for robust, low-voltage switching in harsh automotive environments where reliability, thermal resilience, and gate-drive simplicity are mandatory.
FAQ
Is BUK9214-30A suitable for high-frequency PWM applications above 100 kHz?
Yes - with 31 nC total gate charge and 12.2 nC gate-drain charge, the BUK9214-30A supports efficient switching up to 200 kHz in hard-switched topologies when driven with ≤10 Ω gate resistance. Its 85 ns rise time and 108 ns fall time enable clean transitions, though layout parasitics must be minimized to avoid oscillation at high frequencies.
Can BUK9214-30A replace mechanical relays in automotive applications?
Yes - its 63 A continuous current, 253 A pulsed rating, and 230 mJ avalanche energy make it suitable for replacing 40–60 A automotive relays in solenoid, lamp, and fan control. Unlike relays, it offers silent operation, infinite cycle life, and precise timing control without contact bounce or wear-out mechanisms.
What is the recommended PCB layout for thermal performance?
Mount the DPAK's metal mounting base directly to ≥100 mm² of 2 oz copper on an inner layer, connected via ≥6 thermal vias (0.3 mm diameter) to internal ground or power planes. Keep gate traces short and shielded from drain noise; use separate source return paths for sense accuracy and EMI reduction.
Does BUK9214-30A require external gate protection?
No external Zener clamp is required for standard 12 V automotive operation, as its ±15 V VGS rating exceeds typical MCU GPIO limits. However, a 10–100 nF ceramic capacitor between gate and source near the package is recommended to suppress high-frequency ringing caused by layout inductance and fast dv/dt events.
BUK9214-30A,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):
- 30 V
- Current - Continuous Drain (Id) @ 25°C:
- 63A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 12mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 2V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 31 nC @ 5 V
- Vgs (Max):
- ±15V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2317 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 107W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
BUK9214-30A,118 FAQ
1.How can I place an order for BUK9214-30A,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK9214-30A,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 BUK9214-30A,118 reliable?
The price and inventory of BUK9214-30A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9214-30A,118 is usually 5 days.
3.What payment methods are accepted for BUK9214-30A,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9214-30A,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK9214-30A,118?
BUK9214-30A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK9214-30A,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 BUK9214-30A,118?
For technical support, including BUK9214-30A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9214-30A,118 requirements.
6.How does Aetrix verify that BUK9214-30A,118 is sourced from the original manufacturer or authorized distributors?
All BUK9214-30A,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 BUK9214-30A,118 meets industry standards.
7.What is the process for return or replacement of BUK9214-30A,118?
All BUK9214-30A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9214-30A,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 BUK9214-30A,118 part is unused and in its original packaging.
Return procedure for BUK9214-30A,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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