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Nexperia USA Inc. BUK9880-55/CUF
- Part No.:
- BUK9880-55/CUF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BUK9880-55/CUF.pdf
- Description:
- MOSFET N-CH 55V 7.5A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:9,190
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Product details
Overview
BUK9880-55/CUF from NXP Semiconductors is an AEC-Q101-qualified N-channel TrenchMOS logic-level power MOSFET in SOT223 (SC-73) package, rated for 55 V VDS, 7.5 A continuous drain current at Tsp = 25 °C, and 65–80 mΩ RDS(on) at VGS = 5 V and Tj = 25 °C. It delivers low conduction loss and integrated ESD protection for automotive body control modules requiring robust 12 V load switching.
For engineers reviewing the BUK9880-55 datasheet, BUK9880-55 pinout, BUK9880-55 application, or BUK9880-55 equivalent, this device is selected for its verified avalanche ruggedness (30 mJ), thermal resistance (Rth(j-sp) = 12–15 K/W), and gate-threshold compatibility with 3.3 V/5 V microcontrollers in space-constrained automotive PCBs.
Technical Context
This MOSFET uses TrenchMOS technology to achieve low on-resistance and high electrostatic robustness (2 kV HBM). Its gate threshold voltage ranges from 0.6 V (Tj = 150 °C) to 2.3 V (Tj = −55 °C), enabling reliable turn-on with standard logic-level drivers.
The device features a source-drain diode with VSD = 0.85–1.1 V at IS = 5 A and exhibits dynamic parameters including Ciss = 500–650 pF, tr = 30–50 ns, and QG ≈ 10–12 nC at VDS = 44 V - supporting efficient PWM-based power control in DC loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 55 V maximum drain-source voltage - supports 12 V automotive systems with margin against load-dump transients. |
| RDS(on) | 65–80 mΩ at VGS = 5 V, ID = 5 A, Tj = 25 °C - enables <1 W conduction loss at 7.5 A, reducing heatsink requirements. |
| ID (cont.) | 7.5 A at Tsp = 25 °C - suitable for driving solenoids, fans, and LED arrays without external current limiting. |
| EAS | 30 mJ non-repetitive avalanche energy - provides single-pulse fault tolerance during inductive load switching. |
| Rth(j-sp) | 12–15 K/W junction-to-solder-point thermal resistance - allows direct thermal coupling to PCB copper for passive cooling. |
| VGS(th) | 0.6–2.3 V across −55 to 150 °C - ensures gate drive compatibility with 3.3 V and 5 V MCUs over full automotive temperature range. |
| Ciss | 500–650 pF input capacitance - balances switching speed and gate drive strength for <50 ns rise/fall times with 10 Ω external gate resistor. |
Pinout & Package
SOT223 (SC-73) plastic surface-mounted package with increased heatsink area; 4 leads, lead-free and RoHS compliant. Exposed drain pad (pins 2 & 4) serves as primary thermal path and high-current drain connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | G (Gate) | Control terminal accepting logic-level voltage; requires ≤12 V gate drive; integrated ESD protection limits risk of handling damage. |
| 2 | D (Drain) | Main high-side power output node; electrically and thermally connected to exposed metal tab for PCB heat sinking. |
| 3 | S (Source) | Reference node for gate drive and current return path; tied to system ground in low-side switch configurations. |
| 4 | D (Drain) | Second drain connection - paralleled with Pin 2 to reduce package inductance and improve current sharing in high-frequency switching. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood applications per stress test requirements including temperature cycling, HTRB, and HTGB. |
| Integrated ESD protection | 2 kV HBM rating eliminates need for external TVS on gate line in typical board layouts. |
| Logic-level gate drive | Turns fully on with 5 V gate voltage - compatible with standard MCU GPIOs without level-shifting circuitry. |
| Low RDS(on) × QG figure-of-merit | ~500 mΩ·nC - optimizes trade-off between conduction loss and switching loss in 10–100 kHz PWM applications. |
| Source-drain diode | VSD = 0.85–1.1 V at 5 A - enables freewheeling in inductive loads without external flyback diode in many designs. |
Applications
| Automotive Body Control Module | LED Headlamp Driver |
|---|---|
|
Use Scenario: Switching 12 V power to door locks, window lift motors, and mirror actuators in centralized BCMs. IC Role / Device Role / Timing Role: Low-side power switch controlled by 5 V microcontroller GPIO with PWM dimming capability. Use Value: 65 mΩ RDS(on) reduces resistive heating at 5 A, enabling compact layout without forced air cooling. |
Use Scenario: Driving high-brightness LED strings in adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: High-efficiency PWM-controlled current sink with fast 30 ns rise time for precise light intensity modulation. Use Value: 30 mJ avalanche energy withstands inductive kickback from LED driver inductors during fault conditions. |
| Engine Bay Fan Controller | 12 V DC-DC Converter SR FET |
|
Use Scenario: Controlling radiator cooling fan via PWM signal from engine control unit (ECU). IC Role / Device Role / Timing Role: High-current (7.5 A) low-side switch operating continuously at ambient up to 105 °C. Use Value: Rth(j-sp) = 12 K/W allows direct thermal transfer to 2 oz copper pour, maintaining Tj < 130 °C at full load. |
Use Scenario: Synchronous rectifier in isolated 12 V buck converter for infotainment power supply. IC Role / Device Role / Timing Role: Fast-turning, low-RDS(on) replacement for Schottky diode in secondary-side rectification. Use Value: Coss = 110–135 pF minimizes reverse recovery losses, improving efficiency by ~2.5% vs. discrete diode solution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel logic-level MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP55NF06L | 60 V VDS, 55 A ID, TO-220 package, RDS(on) = 14 mΩ @ 10 V - higher current but larger footprint and no AEC-Q101 rating. | Requires heatsink and gate driver; not qualified for automotive use. | Select only for non-automotive industrial switching where higher current and lower RDS(on) justify TO-220 size and thermal design overhead. |
| ON Semiconductor NTMFS5C670NL | 60 V VDS, 7.5 A ID, SO-8FL package, RDS(on) = 55 mΩ @ 4.5 V - slightly lower RDS(on) but no integrated ESD diodes and no AEC-Q101 certification. | Lacks automotive qualification and gate ESD robustness; requires external protection. | Preferable only in cost-sensitive consumer applications where AEC-Q101 compliance and 2 kV HBM are not required. |
Compared with STP55NF06L and NTMFS5C670NL, BUK9880-55/CUF uniquely combines AEC-Q101 qualification, integrated ESD protection, SOT223 thermal performance, and guaranteed 5 V logic-level operation - making it the only drop-in solution for space-constrained automotive PCBs needing reliability without added protection components.
Availability
BUK9880-55/CUF is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting drivers, engine bay fan controllers, and synchronous rectifier circuits requiring stable component supply and long-term lifecycle support.
Supply support for BUK9880-55/CUF 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The BUK9880-55 belongs to NXP's TrenchMOS logic-level power MOSFET product line, engineered specifically for automotive-grade load switching where reliability, thermal efficiency, and gate-drive simplicity are critical.
FAQ
Is BUK9880-55/CUF pin-compatible with other SOT223 MOSFETs?
No - while physically packaged in SOT223, BUK9880-55/CUF has a 4-pin configuration with dual drain terminals (Pins 2 & 4), unlike standard 3-pin SOT223 devices. This layout reduces package inductance and improves thermal dissipation but requires matching PCB footprint and routing.
What is the maximum safe operating temperature for continuous 7.5 A drain current?
At 7.5 A continuous drain current, the junction temperature must remain ≤150 °C. With Rth(j-sp) = 12–15 K/W and typical PCB copper area, solder point temperature must be held ≤100 °C to maintain safe margin - achievable using ≥100 mm² 2 oz copper pour under the exposed drain pad.
Does BUK9880-55/CUF require a gate resistor for stability?
Yes - a 10 Ω series gate resistor is recommended per the datasheet's switching characterization (Fig. 14). This value damps ringing, controls dV/dt, and prevents shoot-through in half-bridge configurations while maintaining <50 ns switching transitions.
Can BUK9880-55/CUF replace a standard 55 V MOSFET in non-automotive applications?
Yes - its AEC-Q101 qualification, low RDS(on), and robust ESD protection make it suitable for industrial and medical power switches where reliability and long-term supply stability are prioritized over cost-minimization, even outside automotive contexts.
BUK9880-55/CUF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- TO-261-4, TO-261AA
- 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:
- 7.5A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 5V
- Rds On (Max) @ Id, Vgs:
- 80mOhm @ 5A, 5V
- Vgs(th) (Max) @ Id:
- 2V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 650 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 8.3W (Tc)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
BUK9880-55/CUF FAQ
1.How can I place an order for BUK9880-55/CUF through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK9880-55/CUF 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 BUK9880-55/CUF reliable?
The price and inventory of BUK9880-55/CUF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9880-55/CUF is usually 5 days.
3.What payment methods are accepted for BUK9880-55/CUF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9880-55/CUF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK9880-55/CUF?
BUK9880-55/CUF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK9880-55/CUF 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 BUK9880-55/CUF?
For technical support, including BUK9880-55/CUF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9880-55/CUF requirements.
6.How does Aetrix verify that BUK9880-55/CUF is sourced from the original manufacturer or authorized distributors?
All BUK9880-55/CUF 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 BUK9880-55/CUF meets industry standards.
7.What is the process for return or replacement of BUK9880-55/CUF?
All BUK9880-55/CUF units undergo pre-shipment inspection (PSI). If there is an issue with BUK9880-55/CUF, 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 BUK9880-55/CUF part is unused and in its original packaging.
Return procedure for BUK9880-55/CUF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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