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Nexperia USA Inc. BUK7214-75B,118
- Part No.:
- BUK7214-75B,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
BUK7214-75B,118.pdf
- Description:
- MOSFET N-CH 75V 70A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,222
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Product details
Overview
BUK7214-75B from Nexperia is an AEC-Q101 qualified N-channel TrenchMOS standard-level power MOSFET in DPAK (SOT428) package, rated for 75 V VDS, 69 A continuous drain current at Tmb = 25 °C, and 158 W total power dissipation. It delivers 12.6 mΩ typical RDS(on) at VGS = 10 V and ID = 25 A, with 175 °C junction temperature rating - designed for automotive load switching in 12 V/24 V systems including motors, lamps, and solenoids.
For engineers reviewing the BUK7214-75B datasheet, BUK7214-75B pinout, BUK7214-75B application, or BUK7214-75B equivalent, this device serves as a thermally robust, gate-drive-compatible discrete switch where low conduction loss, avalanche ruggedness (136 mJ), and automotive qualification are critical selection criteria.
Technical Context
This MOSFET employs TrenchMOS technology to achieve low on-resistance and stable threshold voltage across temperature. Its gate threshold voltage ranges from 2 V (min) to 4.4 V (max) over -55 °C to 175 °C, enabling reliable turn-on with standard 10 V gate drive while maintaining safe margin against spurious conduction.
Thermal design is enabled by a 0.95 K/W junction-to-mounting-base thermal resistance and integrated source-drain diode with 0.85 V typical forward voltage at 25 A. Dynamic performance includes 41 nC total gate charge and 15 nC gate-drain charge, supporting efficient high-frequency switching in motor control and load management circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 75 V maximum drain-source voltage - supports operation in 42 V automotive systems with safety margin. |
| RDS(on) | 12.6 mΩ typical at VGS = 10 V, ID = 25 A, Tj = 25 °C - enables <1.6 W conduction loss at 32 A DC load. |
| ID (continuous) | 69 A at Tmb = 25 °C - suitable for high-current solenoid or lamp drivers without forced cooling. |
| EAS | 136 mJ non-repetitive avalanche energy - provides single-pulse robustness during inductive load turn-off transients. |
| Tj max | 175 °C maximum junction temperature - allows operation in under-hood environments with minimal derating. |
| QG(tot) | 41 nC total gate charge - determines gate driver current requirement (~4.1 mA average for 10 kHz switching). |
| Rth(j-mb) | 0.95 K/W junction-to-mounting-base thermal resistance - enables direct heatsinking via the drain-connected mounting base. |
Pinout & Package
Package: DPAK (SOT428), plastic surface-mounted package with 3 leads (lead 2 cropped); mounting base electrically connected to drain and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal requiring 10 V for full enhancement; threshold range 2–4.4 V ensures compatibility with standard logic-level drivers. |
| 2 (D) | Drain | Main high-side current 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 return; internal source inductance 7.5 nH limits high-di/dt ringing in fast-switching applications. |
| Mounting Base (mb) | Drain connection / Thermal interface | Electrically tied to drain; provides mechanical attachment and primary heat transfer path to PCB copper or external heatsink. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-critical applications including engine control, body electronics, and ADAS subsystems. |
| 175 °C junction rating | Enables uninterrupted operation in high-ambient under-hood locations without thermal shutdown or parameter drift. |
| Low RDS(on) × QG figure of merit | 517 mΩ·nC - balances conduction and switching losses for optimized efficiency in 10–100 kHz PWM loads. |
| Integrated source-drain diode | 0.85 V forward voltage at 25 A, 25 °C - supports freewheeling in inductive switching without external diode in many designs. |
| Unclamped inductive switching capability | 136 mJ EAS - withstands energy from 69 A inductive current decay with Vsup ≤ 75 V and RGS = 50 Ω. |
Applications
| Automotive Body Control Module (BCM) | 12 V Starter Relay Replacement |
|---|---|
|
Use Scenario: Driving high-current door locks, seat heaters, and HVAC actuators in centralized BCM architecture. IC Role / Device Role / Timing Role: High-side load switch replacing electromechanical relays; operates in DC or pulsed mode with 100 ms–1 s duty cycles. Use Value: Eliminates relay chatter, contact wear, and coil power loss; 12.6 mΩ RDS(on) reduces heat generation vs. legacy 20 mΩ alternatives. |
Use Scenario: Solid-state replacement for starter solenoid control in 12 V battery-powered vehicles. IC Role / Device Role / Timing Role: Low-side switching element handling peak currents up to 276 A (pulsed) during cranking. Use Value: Withstands 276 A peak drain current and 136 mJ avalanche energy, enabling robust start-stop system integration without snubber circuits. |
| Commercial Vehicle Lighting Control | Industrial 24 V DC Motor Driver |
|
Use Scenario: PWM dimming and on/off control of LED headlamps and fog lamps in trucks and buses. IC Role / Device Role / Timing Role: High-side switch operating at 100–500 Hz with 10–90% duty cycle; manages thermal cycling stress. Use Value: 175 °C Tj rating and 0.95 K/W Rth(j-mb) ensure stable light output across ambient temperatures from -40 °C to +85 °C. |
Use Scenario: H-bridge half-bridge leg in 24 V brushed DC motor drives for material handling equipment. IC Role / Device Role / Timing Role: Power stage switch with 41 nC QG enabling 20 kHz PWM without excessive gate drive loss. Use Value: 15 nC QGD minimizes Miller-induced shoot-through risk; integrated diode supports regenerative braking current paths. |
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 VDS, 220 A ID, 0.75 mΩ RDS(on), PowerFLAT 5x6 package | Lower voltage rating; higher current capacity; requires different PCB layout and gate drive due to lower threshold (1.2 V typ) | Select when 40 V system compliance and ultra-low RDS(on) outweigh need for 75 V margin. |
| IRF1404ZPBF | 40 V VDS, 184 A ID, 3.4 mΩ RDS(on), TO-220AB package | Non-automotive grade; no AEC-Q101; larger through-hole package; higher thermal resistance (1.25 K/W) | Acceptable only for non-safety-critical industrial use where qualification and surface-mount assembly are not required. |
Compared with STL220N4F7AG and IRF1404ZPBF, BUK7214-75B uniquely combines 75 V rating, AEC-Q101 qualification, DPAK surface-mount compatibility, and 12.6 mΩ RDS(on) - making it the only option validated for thermally demanding 12 V/24 V automotive switching where voltage margin and reliability are non-negotiable.
Availability
BUK7214-75B is available at Aetrix Electronics and suitable for automotive body electronics, 12 V starter systems, and commercial vehicle lighting requiring stable component supply across extended production lifecycles.
Supply support for BUK7214-75B 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.
BUK7214-75B belongs to Nexperia's TrenchMOS automotive power portfolio, engineered specifically for robust, high-current load switching in harsh-temperature automotive environments - prioritizing AEC-Q101 compliance, thermal resilience, and gate-drive simplicity.
FAQ
Is BUK7214-75B suitable for high-frequency PWM motor control?
Yes - with 41 nC total gate charge and 15 nC gate-drain charge, it supports efficient switching up to 100 kHz in well-designed gate drive circuits. Its 7.5 nH internal source inductance and 2.5 nH drain inductance help minimize parasitic oscillation, but layout optimization remains essential for >50 kHz operation.
What is the maximum allowable gate-source voltage?
The absolute maximum VGS is ±20 V per IEC 60134 limiting values. For reliable long-term operation, Nexperia recommends limiting VGS to 10 V for full enhancement and avoiding sustained exposure above 15 V to prevent gate oxide degradation.
How does the mounting base connection affect PCB layout?
The mounting base is electrically connected to the drain (pin 2), so PCB copper area under the DPAK must be isolated from other nets and tied to the drain net. This copper serves as both thermal sink and current path - minimum 200 mm² recommended for 69 A continuous operation with 0.95 K/W thermal resistance.
Can BUK7214-75B replace mechanical relays in automotive applications?
Yes - its 69 A continuous current, 276 A pulsed rating, 136 mJ avalanche energy, and AEC-Q101 qualification make it suitable for solid-state relay replacement in BCM, lighting, and starter circuits. Unlike relays, it offers silent operation, infinite cycle life, and precise PWM control without contact bounce.
BUK7214-75B,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):
- 75 V
- Current - Continuous Drain (Id) @ 25°C:
- 70A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 14mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 41 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2612 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 158W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
BUK7214-75B,118 FAQ
1.How can I place an order for BUK7214-75B,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7214-75B,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 BUK7214-75B,118 reliable?
The price and inventory of BUK7214-75B,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7214-75B,118 is usually 5 days.
3.What payment methods are accepted for BUK7214-75B,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7214-75B,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7214-75B,118?
BUK7214-75B,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7214-75B,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 BUK7214-75B,118?
For technical support, including BUK7214-75B,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7214-75B,118 requirements.
6.How does Aetrix verify that BUK7214-75B,118 is sourced from the original manufacturer or authorized distributors?
All BUK7214-75B,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 BUK7214-75B,118 meets industry standards.
7.What is the process for return or replacement of BUK7214-75B,118?
All BUK7214-75B,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7214-75B,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 BUK7214-75B,118 part is unused and in its original packaging.
Return procedure for BUK7214-75B,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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