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Nexperia USA Inc. BUK7210-55B,118
- Part No.:
- BUK7210-55B,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
BUK7210-55B,118.pdf
- Description:
- MOSFET N-CH 55V 75A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:9,408
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Product details
Overview
BUK7210-55B,118 from Nexperia is a standard-level N-channel TrenchMOS FET in DPAK (SOT428) package, rated for 55 V VDS, 75 A continuous drain current at Tmb = 25 °C, and 8.5 mΩ RDS(on) at VGS = 10 V and Tj = 25 °C. It is AEC-Q101 qualified, rated to 185 °C junction temperature, and designed for automotive critical power switching including 12 V/24 V loads, solenoids, and lamps.
For engineers reviewing the BUK7210-55B,118 datasheet, BUK7210-55B,118 pinout, BUK7210-55B,118 application, or BUK7210-55B,118 equivalent, this device supports high-current, thermally demanding automotive power control where low conduction loss, avalanche ruggedness (173 mJ), and mounting-base thermal management (Rth(j-mb) = 0.95 K/W) are essential design requirements.
Technical Context
This MOSFET uses Nexperia's High-Performance Automotive (HPA) TrenchMOS technology to achieve low RDS(on) while maintaining robust gate oxide integrity and stable threshold voltage (VGS(th) = 2–4 V at 25 °C, 0.9–1.75 V at 175–185 °C). Its unclamped inductive switching capability is validated with 173 mJ non-repetitive avalanche energy under defined test conditions (ID = 75 A, Vsup ≤ 55 V, RGS = 50 Ω).
The device features a thermally optimized DPAK package with the mounting base electrically connected to the drain, enabling direct heatsinking. Internal parasitics are tightly controlled: LD = 2.5 nH, LS = 7.5 nH, Ciss = 1840–2453 pF, and fast switching performance (td(on) = 18 ns, tr = 91 ns, td(off) = 48 ns, tf = 45 ns) at VDS = 25 V and RG(ext) = 10 Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 55 V - Maximum drain-source blocking voltage; defines safe operation in 12 V/24 V automotive systems with load-dump transients. |
| RDS(on) | 8.5 mΩ (typ) at VGS = 10 V, ID = 25 A, Tj = 25 °C - Enables <1.5 W conduction loss at 40 A, reducing thermal stress in high-current switches. |
| ID (cont) | 75 A at Tmb = 25 °C - Package-limited continuous current; derates to 65.5 A at Tmb = 100 °C per SOA curve. |
| EAS | 173 mJ - Non-repetitive avalanche energy rating; supports reliable operation during inductive turn-off without external snubbers in motor/solenoid drives. |
| Rth(j-mb) | 0.95 K/W - Junction-to-mounting-base thermal resistance; enables efficient heat transfer to PCB copper or heatsink when mounted via exposed drain pad. |
| VGS(th) | 2–4 V (25 °C), 0.9–1.75 V (175–185 °C) - Threshold voltage range ensures gate drive compatibility with standard 5 V or 12 V logic while maintaining turn-on margin at high temperature. |
| QG(tot) | 35 nC (typ) - Total gate charge at VDS = 44 V, VGS = 10 V; determines driver strength requirement and switching loss trade-off. |
Pinout & Package
BUK7210-55B,118 is housed in a plastic DPAK (SOT428 / SC-63) surface-mount package with three leads (one cropped), featuring an exposed mounting base electrically tied to the drain terminal for enhanced thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal; requires ≥10 V drive for full enhancement; gate leakage <100 nA at ±20 V ensures low standby power. |
| 2 (D) | Drain | Main high-side power terminal; internally connected to mounting base; must be soldered to thermal pad for rated power handling. |
| 3 (S) | Source | Power return path; referenced to system ground in low-side switch configurations; source inductance = 7.5 nH affects switching ringing. |
| Mounting Base (mb) | Drain (tie) | Electrically and thermally connected to drain; provides primary thermal path to PCB; no electrical isolation from pin 2. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive safety-critical applications including engine control, body electronics, and ADAS power stages. |
| 185 °C junction rating | Supports operation in under-hood environments without derating below ambient extremes; extends lifetime in thermally constrained layouts. |
| Low RDS(on) × QG figure-of-merit | ~300 Ω·nC - Balances conduction and switching losses for high-efficiency 12 V/24 V DC-DC and load-switching topologies. |
| Robust source-drain diode | VSD = 0.73–0.85 V at IS = 18 A, Tj = 25–185 °C; trr = 67 ns, Qr = 65 nC - Enables freewheeling in inductive loads with minimal reverse recovery loss. |
| High peak current capability | IDM = 335 A (10 µs pulse) - Supports short-duration surge currents during motor startup or lamp inrush without failure. |
Applications
| Automotive Body Control Module (BCM) | 12 V/24 V Solenoid Driver |
|---|---|
Use Scenario: Switching door locks, seat adjusters, and HVAC actuators in modern BCMs. IC Role / Device Role / Timing Role: Low-side power switch controlling inductive solenoid coils with PWM or on/off duty cycles. Use Value: 8.5 mΩ RDS(on) minimizes resistive heating during sustained actuation; 173 mJ avalanche rating absorbs coil flyback energy without clamping diodes. |
Use Scenario: Driving fuel injectors, transmission shift solenoids, or ABS valve actuators in 12 V/24 V vehicle platforms. IC Role / Device Role / Timing Role: High-current, fast-turning power switch with precise timing control for closed-loop solenoid positioning. Use Value: 35 nC QG and sub-50 ns turn-off delay enable accurate pulse-width control; 335 A peak current handles injector inrush surges. |
| LED Headlamp Power Stage | Industrial Motor Starter |
Use Scenario: High-side or low-side switching of multi-string LED headlamps in adaptive driving beam (ADB) systems. IC Role / Device Role / Timing Role: Constant-current or PWM-controlled power switch managing up to 75 A total LED load. Use Value: 185 °C rating ensures reliability under sealed headlamp thermal conditions; low RDS(on) reduces thermal footprint on compact PCBs. |
Use Scenario: Controlling brushed DC motors in industrial automation, such as conveyor belt drives or pump starters. IC Role / Device Role / Timing Role: Main power switch in H-bridge or single-ended motor drive, handling stall and startup currents. Use Value: 65.5 A continuous current at Tmb = 100 °C supports sustained motor operation; robust SOA prevents thermal runaway during stall events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL220N5LF8AG | 60 V VDS, 220 A ID, 1.6 mΩ RDS(on), PowerFLAT 5x6 package, 175 °C rating | Higher current and lower RDS(on), but larger footprint and higher gate charge (120 nC); requires more robust gate driver. | Select when >100 A continuous current or <2 mΩ conduction loss is required; not drop-in due to different package and drive needs. |
| IRF1404ZPBF | 40 V VDS, 184 A ID, 3.8 mΩ RDS(on), TO-220AB package, 175 °C rating | Lower voltage rating limits use to 12 V systems only; through-hole mounting increases assembly cost and reduces thermal efficiency vs. DPAK. | Choose for legacy 12 V designs where TO-220 form factor is mandated and 40 V blocking suffices; lacks AEC-Q101 qualification. |
Compared with STL220N5LF8AG and IRF1404ZPBF, BUK7210-55B,118 offers optimal balance of 55 V rating, AEC-Q101 compliance, DPAK thermal performance, and moderate gate drive demand-making it ideal for new automotive power modules where space, qualification, and 24 V compatibility are critical.
Availability
BUK7210-55B,118 is available at Aetrix Electronics and suitable for automotive body control, industrial motor control, LED lighting systems, and 12 V/24 V solenoid actuation requiring stable component supply across extended production lifecycles.
Supply support for BUK7210-55B,118 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 and advanced packaging.
BUK7210-55B,118 belongs to Nexperia's High-Performance Automotive (HPA) TrenchMOS product line, engineered specifically for thermally demanding, safety-critical automotive power switching applications requiring AEC-Q101 compliance and 185 °C operation.
FAQ
Is BUK7210-55B,118 suitable for high-side switching configurations?
No-BUK7210-55B,118 is a standard-level (not logic-level) N-channel MOSFET requiring VGS ≥10 V for full enhancement. In high-side configurations, gate drive must exceed the drain voltage by ≥10 V, necessitating a floating supply or charge pump. It is optimized for low-side switching where source is grounded.
What is the maximum allowable PCB copper area for thermal performance?
While not specified as a fixed area, Nexperia recommends using ≥250 mm² of 2 oz copper connected to the mounting base (drain) for optimal Rth(j-mb) = 0.95 K/W. Larger copper areas further reduce thermal resistance, but diminishing returns occur beyond ~500 mm² unless multiple thermal vias are used.
Does BUK7210-55B,118 require an external flyback diode when driving inductive loads?
No external diode is strictly required-the integrated source-drain diode has trr = 67 ns and Qr = 65 nC, making it suitable for moderate-frequency PWM inductive switching. However, for high-frequency (>20 kHz) or high-energy recovery applications, an external Schottky diode may improve efficiency and reduce EMI.
How does RDS(on) change over temperature and gate voltage?
RDS(on) increases with junction temperature: 8.5 mΩ at 25 °C rises to 20.8 mΩ at 185 °C (VGS = 10 V, ID = 25 A). It also degrades significantly below VGS = 8 V-e.g., at VGS = 5 V, RDS(on) exceeds 30 mΩ even at 25 °C-so stable 10 V gate drive is essential for low-loss operation.
BUK7210-55B,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):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 75A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 10mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 35 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2453 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 167W (Tc)
- Operating Temperature:
- -55°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
BUK7210-55B,118 FAQ
1.How can I place an order for BUK7210-55B,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7210-55B,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 BUK7210-55B,118 reliable?
The price and inventory of BUK7210-55B,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7210-55B,118 is usually 5 days.
3.What payment methods are accepted for BUK7210-55B,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7210-55B,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7210-55B,118?
BUK7210-55B,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7210-55B,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 BUK7210-55B,118?
For technical support, including BUK7210-55B,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7210-55B,118 requirements.
6.How does Aetrix verify that BUK7210-55B,118 is sourced from the original manufacturer or authorized distributors?
All BUK7210-55B,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 BUK7210-55B,118 meets industry standards.
7.What is the process for return or replacement of BUK7210-55B,118?
All BUK7210-55B,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7210-55B,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 BUK7210-55B,118 part is unused and in its original packaging.
Return procedure for BUK7210-55B,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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