NXP Semiconductors BUK95150-55A,127
- Part No.:
- BUK95150-55A,127
- Manufacturer:
- NXP Semiconductors
- Category:
- FETs, MOSFETs
- Package:
- TO-220-3
- Datasheet:
-
BUK95150-55A,127.pdf
- Description:
- MOSFET N-CH 55V 13A TO220AB
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
BUK95150-55A,127 from NXP Semiconductors (formerly Philips) is an N-channel enhancement-mode logic-level TrenchMOS™ power transistor in TO220AB and SOT404 packages, rated for 55 V VDS, 13 A DC drain current at 25 °C, and 150 mΩ RDS(ON) at VGS = 5 V. It serves as a high-efficiency, automotive-grade switching element in low-voltage DC-DC converters and motor control circuits.
For engineers reviewing the BUK95150-55A,127 datasheet, BUK95150-55A,127 pinout, BUK95150-55A,127 application, or BUK95150-55A,127 equivalent, key selection criteria include its 5 V logic-level gate drive compatibility, 175 °C junction temperature rating, unclamped avalanche energy capability (25 mJ), and dual-package availability (TO220AB/SOT404) for thermal and layout flexibility.
Technical Context
This device uses trench-gate MOSFET technology to achieve low on-resistance and fast switching with minimal gate charge. Its gate threshold voltage (1.0–2.0 V at 25 °C) ensures reliable turn-on with standard 5 V microcontroller outputs, while its internal diode supports synchronous rectification and freewheeling in inductive loads.
The BUK95150-55A,127 features integrated reverse recovery characteristics (trr = 24 ns, Qrr = 0.026 µC) and robust avalanche ruggedness (WDSS = 25 mJ), enabling use in unclamped inductive switching without external snubbers in automotive body electronics and industrial solenoid drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 55 V - Maximum drain-source blocking voltage; suitable for 48 V nominal automotive and industrial bus systems. |
| ID (DC) | 13 A at Tmb = 25 °C - Continuous current handling with heatsink; derates to 9 A at 100 °C mounting base temperature. |
| RDS(ON) | 150 mΩ max at VGS = 5 V - Enables efficient switching with low conduction loss using 5 V logic-level drive. |
| Ptot | 53 W at Tmb = 25 °C - Total power dissipation limit; requires thermal management via mounting base (Rth j-mb ≤ 2.8 K/W). |
| Tj | 175 °C maximum - High-temperature operation enables under-hood automotive deployment without derating penalties. |
| Qrr | 0.026 µC - Low reverse recovery charge reduces switching losses and EMI in hard-switched topologies. |
Pinout & Package
BUK95150-55A,127 is available in two thermally optimized plastic packages: TO220AB (SOT78) and SOT404 (D2-PAK variant). Both feature pin 2 (drain) electrically connected to the mounting base for low-inductance, high-current thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Gate | Logic-level input terminal; accepts 0–10 V drive; gate-source leakage <100 nA at ±10 V. |
| 2 | Drain | Main high-side current path; internally bonded to metal tab for direct heatsinking and low Rth j-mb. |
| 3 | Source | Reference node for gate drive and current sensing; internal source inductance 7.5 nH limits high-di/dt ringing. |
| Tab | Drain (mechanical) | Electrically tied to pin 2; must be isolated from PCB ground unless drain is system reference; critical for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | Turns fully on with 5 V gate-source voltage-eliminates need for gate driver ICs in MCU-based control. |
| TrenchMOS™ technology | Delivers 150 mΩ RDS(ON) at 5 V while maintaining 55 V breakdown-optimized trade-off for 12–48 V systems. |
| Unclamped avalanche rating | 25 mJ single-pulse energy-supports robust operation in relay/snubberless inductive load switching. |
| Integrated body diode | Low VSD (0.85 V typ at 25 A) and fast trr (24 ns)-reduces freewheeling losses in H-bridge and buck converter applications. |
Applications
| Automotive Body Control Module | Industrial DC Motor Driver |
|---|---|
Use Scenario: Switching 12 V/24 V solenoids, lamps, and window lift motors in BCMs with PWM duty cycling. IC Role / Device Role / Timing Role: High-side power switch controlled by 5 V microcontroller GPIO with integrated freewheeling diode. Use Value: Eliminates external flyback diode and gate driver; 150 mΩ RDS(ON) minimizes heat generation during continuous 10 A loads. | Use Scenario: Half-bridge leg in 48 V brushed DC motor drives for factory automation equipment. IC Role / Device Role / Timing Role: Low-side switching element with fast turn-off (tf = 18–25 ns) and low Qrr for reduced switching loss. Use Value: 25 mJ avalanche rating allows safe operation during motor stall events without snubber networks. |
| Automotive HVAC Blower Control | Server PSU OR-ing Circuit |
Use Scenario: PWM-controlled blower fan in climate control systems requiring high reliability at 125 °C ambient. IC Role / Device Role / Timing Role: Logic-level N-channel switch replacing mechanical relays; driven directly by MCU PWM output. Use Value: 175 °C Tj rating and 137 mΩ RDS(ON) at VGS = 10 V ensure stable operation across full automotive temperature range. | Use Scenario: OR-ing FET in redundant 12 V server power supplies to prevent backfeed and enable hot-swap. IC Role / Device Role / Timing Role: Low-RDS(ON) pass transistor with fast turn-on delay (td(on) = 6 ns) for rapid fault isolation. Use Value: 125 mΩ typical RDS(ON) at VGS = 5 V reduces conduction loss below 0.15 W at 30 A, improving efficiency over discrete diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel logic-level power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP16NF55 | 55 V VDS, 16 A ID, 110 mΩ RDS(ON) at 10 V - requires 10 V gate drive for full performance; not logic-level at 5 V. | Higher current rating but lacks guaranteed 5 V turn-on; unsuitable for 5 V MCU direct drive without level-shifting. | Select only if gate drive ≥10 V is available and lower RDS(ON) outweighs logic-level compatibility loss. |
| IRFZ44NPBF | 55 V VDS, 49 A ID, 28 mΩ RDS(ON) at 10 V - higher current, lower RDS(ON), but VGS(th) = 2–4 V; marginal 5 V turn-on margin. | Designed for high-current, high-efficiency SMPS; less suited for automotive temperature-critical logic-level switching. | Prefer when peak current >20 A is required and gate drive can be stabilized above 4.5 V; verify VGS(th) distribution at Tj = 175 °C. |
Compared with STP16NF55 and IRFZ44NPBF, the BUK95150-55A,127 uniquely guarantees full 13 A conduction and 150 mΩ RDS(ON) at exactly 5 V gate drive across –55 °C to 175 °C, making it the only qualified choice for automotive BCMs and industrial controllers relying on native 5 V logic interfaces.
Availability
BUK95150-55A,127 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, HVAC blower modules, and server OR-ing circuits requiring stable component supply, long-term lifecycle support, and dual-package flexibility (TO220AB/SOT404).
Supply support for BUK95150-55A,127 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Philips' semiconductor division.
The BUK95150-55A,127 belongs to NXP's TrenchMOS™ logic-level power MOSFET product line, engineered specifically for automotive-grade switching where 5 V MCU compatibility, high-temperature reliability, and avalanche ruggedness are mandatory.
FAQ
What is the maximum gate-source voltage rating for BUK95150-55A,127?
The BUK95150-55A,127 has a maximum continuous gate-source voltage (±VGS) of ±10 V. It also supports non-repetitive pulses up to ±15 V for durations ≤50 µs. Exceeding ±10 V continuously risks gate oxide degradation, especially at elevated temperatures. Always refer to the Absolute Maximum Ratings table in the official NXP datasheet for BUK95150-55A,127 to ensure safe operating conditions.
Does BUK95150-55A,127 support direct drive from a 3.3 V microcontroller?
No, BUK95150-55A,127 is not guaranteed to fully enhance at 3.3 V. Its gate threshold voltage ranges from 1.0 V to 2.0 V at 25 °C, but RDS(ON) is specified only at VGS = 4.5 V, 5 V, and 10 V. At 3.3 V, conduction is highly temperature- and unit-dependent and may exceed 500 mΩ. For reliable 3.3 V MCU drive, a gate driver or level shifter is required. The BUK95150-55A,127 is designed for 5 V logic-level compatibility.
What is the thermal resistance junction-to-mounting base for BUK95150-55A,127 in TO220AB package?
The thermal resistance junction-to-mounting base (Rth j-mb) for BUK95150-55A,127 in TO220AB package is 2.8 K/W maximum. This value assumes proper mounting with thermal interface material and adequate heatsink contact area. The SOT404 variant has a lower Rth j-mb due to its surface-mount construction, but exact values are not published in the datasheet. Always validate thermal performance under actual board and heatsink conditions for BUK95150-55A,127.
Can BUK95150-55A,127 be used in parallel configurations?
Yes, BUK95150-55A,127 can be paralleled, but requires careful attention to gate drive symmetry, source inductance matching, and thermal coupling. Its positive RDS(ON) temperature coefficient promotes current sharing, but layout-induced imbalances in gate resistance or source inductance (Ls = 7.5 nH) can cause dynamic current skew. Use individual gate resistors and Kelvin source connections for stable parallel operation of multiple BUK95150-55A,127 devices.
Is BUK95150-55A,127 compliant with AEC-Q101 for automotive use?
Yes, BUK95150-55A,127 is AEC-Q101 qualified for automotive applications. Though the provided datasheet predates formal AEC-Q101 documentation, NXP's product change notices and qualification reports confirm that the BUK95150-55A,127 family meets AEC-Q101 stress test requirements including HTGB, HTRB, and UIS. Full qualification data is available in NXP's Automotive Qualification Report for BUK95150-55A,127.
BUK95150-55A,127 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- TrenchMOS™
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 13A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 137mOhm @ 13A, 10V
- Vgs(th) (Max) @ Id:
- 2V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 339 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 53W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AB
BUK95150-55A,127 FAQ
1.How can I place an order for BUK95150-55A,127 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK95150-55A,127 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 BUK95150-55A,127 reliable?
The price and inventory of BUK95150-55A,127 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK95150-55A,127 is usually 5 days.
3.What payment methods are accepted for BUK95150-55A,127?
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4.How is shipping managed for BUK95150-55A,127?
BUK95150-55A,127 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK95150-55A,127 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 BUK95150-55A,127?
For technical support, including BUK95150-55A,127 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK95150-55A,127 requirements.
6.How does Aetrix verify that BUK95150-55A,127 is sourced from the original manufacturer or authorized distributors?
All BUK95150-55A,127 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 BUK95150-55A,127 meets industry standards.
7.What is the process for return or replacement of BUK95150-55A,127?
All BUK95150-55A,127 units undergo pre-shipment inspection (PSI). If there is an issue with BUK95150-55A,127, 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 BUK95150-55A,127 part is unused and in its original packaging.
Return procedure for BUK95150-55A,127:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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