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Nexperia USA Inc. BUK764R0-55B,118
- Part No.:
- BUK764R0-55B,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
BUK764R0-55B,118.pdf
- Description:
- MOSFET N-CH 55V 75A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:4,246
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Product details
Overview
BUK764R0-55B,118 from Nexperia is a standard-level N-channel TrenchMOS FET in D2PAK (SOT404) package, designed for automotive-critical 12 V/24 V power switching. It delivers 75 A continuous drain current at 25 °C mounting base temperature, 3.4 mΩ typical RDS(on) at VGS = 10 V and Tj = 25 °C, and is AEC-Q101 qualified with 175 °C maximum junction temperature rating.
For engineers reviewing the BUK764R0-55B,118 datasheet, BUK764R0-55B,118 pinout, BUK764R0-55B,118 application, or BUK764R0-55B,118 equivalent, key selection criteria include its 55 V VDS, low thermal resistance (0.5 K/W j-mb), avalanche ruggedness (1.2 J unclamped), suitability for thermally demanding motor/solenoid loads, and compatibility with standard 10 V gate drive sources.
Technical Context
This device uses Nexperia's High-Performance Automotive (HPA) TrenchMOS technology to achieve low conduction losses and robust thermal performance. Its gate threshold voltage ranges from 2–4 V at 25 °C and remains functional down to 1 V at 175 °C, enabling reliable turn-on across automotive temperature extremes.
The integrated source-drain diode supports freewheeling in inductive loads, with 0.85–1.2 V forward voltage at 40 A and 95 ns reverse recovery time. Dynamic parameters include 86 nC total gate charge and 25 nC gate-drain charge, supporting efficient high-frequency switching up to 100 kHz in hard-switched topologies.
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. |
| ID (continuous) | 75 A at Tmb = 25 °C - Package-limited current capacity; enables high-power solenoid and lamp control without external heatsinking at moderate ambient. |
| RDS(on) | 3.4 mΩ typ @ VGS = 10 V, ID = 25 A, Tj = 25 °C - Low conduction loss reduces power dissipation and improves efficiency in battery-fed systems. |
| Tj max | 175 °C - Enables sustained operation in engine bay environments and under high-current pulse conditions without derating. |
| EAS | 1.2 J (unclamped) - Avalanche energy rating allows safe handling of inductive kickback in motor and relay driving without snubber circuits. |
| Rth(j-mb) | 0.5 K/W - Low junction-to-mounting-base thermal resistance enables direct PCB copper pour heatsinking for compact thermal design. |
| QG(tot) | 86 nC - Total gate charge determines driver strength requirement; compatible with standard automotive gate drivers (e.g., UCC27531, TC4427). |
Pinout & Package
Package: SOT404 (D2PAK), plastic single-ended surface-mounted package with 3 leads (one lead cropped); mounting base electrically connected to drain.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal; requires ≥10 V for full enhancement; threshold range 2–4 V ensures compatibility with 12 V logic and microcontroller outputs. |
| 2 (D) | Drain | Main high-side power path; internally bonded to mounting base for low-inductance, high-current routing and thermal conduction. |
| 3 (S) | Source | Power return path and reference for gate drive; separate source lead minimizes source inductance (7.5 nH) for stable switching. |
| Mounting Base (mb) | Drain (common) | Electrically tied to pin 2; serves as primary thermal interface and high-current drain connection; must be soldered to large copper area. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive safety-critical applications including body control modules and power distribution units. |
| 175 °C junction rating | Enables uninterrupted operation in under-hood environments where ambient exceeds 125 °C and transient heating occurs. |
| Low RDS(on) (3.4 mΩ) | Reduces conduction loss to <0.5 W at 75 A, minimizing thermal stress and enabling smaller heatsinks or fanless designs. |
| Standard-level gate drive | Operates fully enhanced with 10 V gate voltage-compatible with common 12 V automotive supply rails and non-logic-level drivers. |
| Unclamped avalanche energy (1.2 J) | Eliminates need for external clamping diodes in solenoid/motor flyback paths, reducing BOM count and board space. |
Applications
| Automotive Body Control Module | 12 V Starter Solenoid Driver |
|---|---|
|
Use Scenario: Switching high-current loads such as door locks, seat adjusters, and HVAC actuators in centralized body control units. IC Role / Device Role / Timing Role: High-side power switch controlling 12 V DC loads with PWM or on/off duty cycles up to 100%. Use Value: AEC-Q101 compliance ensures reliability over 15-year vehicle lifetime; 175 °C rating prevents thermal shutdown during extended actuator stall events. |
Use Scenario: Driving starter solenoid coils requiring >50 A peak current during cranking in 12 V gasoline/diesel engines. IC Role / Device Role / Timing Role: Robust main power switch handling repetitive 774 A peak pulses (10 µs) and unclamped inductive flyback. Use Value: 1.2 J avalanche energy absorbs solenoid collapse energy without failure; low RDS(on) minimizes voltage drop during cranking. |
| 24 V Commercial Vehicle Lighting | Industrial DC Motor H-Bridge Leg |
|
Use Scenario: Controlling LED headlamps and auxiliary lighting in trucks and buses operating from 24 V nominal systems. IC Role / Device Role / Timing Role: Low-loss switching element in constant-current LED driver or PWM dimming stage. Use Value: 55 V VDS withstands 24 V system transients up to ISO 7637-2 Pulse 5a (120 V); 300 W Ptot supports sustained full-brightness operation. |
Use Scenario: Upper or lower switch in half-bridge or H-bridge configurations for 24 V brushed DC motors in agricultural or construction equipment. IC Role / Device Role / Timing Role: Power stage MOSFET with fast switching (23 ns td(on), 41 ns tf) and low QGD (25 nC) for reduced switching loss. Use Value: 0.5 K/W Rth(j-mb) enables direct thermal coupling to chassis ground, maintaining <125 °C junction temp at 50 A continuous motor current. |
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 |
|---|---|---|---|
| STL220N4F7AG | 40 V VDS, 220 A ID, 1.6 mΩ RDS(on), TO-263 package, AEC-Q101 | Higher current, lower voltage rating; unsuitable for 24 V systems with load dump | Select only for 12 V-only applications requiring >100 A and tighter RDS(on); verify layout compatibility with larger TO-263 footprint. |
| IRF1404ZPBF | 40 V VDS, 184 A ID, 3.8 mΩ RDS(on), TO-220AB package, not AEC-Q101 qualified | Lacks automotive qualification; higher thermal resistance (1.2 K/W j-case) | Acceptable for industrial non-automotive motor control; avoid in safety-critical or high-reliability automotive designs. |
Compared with STL220N4F7AG and IRF1404ZPBF, BUK764R0-55B,118 uniquely balances 55 V rating, AEC-Q101 compliance, and D2PAK thermal performance-making it the only option qualified for 24 V automotive loads requiring both voltage margin and long-term reliability.
Availability
BUK764R0-55B,118 is available at Aetrix Electronics and suitable for automotive body control modules, 12 V/24 V solenoid drivers, and industrial DC motor controllers requiring stable component supply across multi-year production cycles.
Supply support for BUK764R0-55B,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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified MOSFETs and ESD protection.
BUK764R0-55B,118 belongs to Nexperia's High-Performance Automotive (HPA) TrenchMOS product line, engineered specifically for robust, thermally efficient power switching in harsh automotive environments.
FAQ
Is BUK764R0-55B,118 suitable for high-frequency PWM motor control?
Yes-it supports PWM frequencies up to 100 kHz in hard-switched configurations due to its 86 nC total gate charge and fast switching times (23 ns td(on), 41 ns tf). However, thermal design must account for combined conduction and switching losses; use gate resistors ≥10 Ω to damp ringing and ensure stable turn-off.
What is the maximum allowable mounting base temperature for continuous 75 A operation?
The datasheet specifies 75 A continuous drain current at Tmb = 25 °C. At Tmb = 100 °C, continuous current drops to 75 A (capped by package limit), but actual usable current is constrained by thermal resistance and ambient conditions. For sustained 75 A, maintain Tmb ≤ 60 °C using ≥100 cm² 2-oz copper pour.
Can BUK764R0-55B,118 replace older BUK764R0-55 in existing designs?
Yes-BUK764R0-55B,118 is a direct replacement for BUK764R0-55 with identical pinout, electrical specs, and package (SOT404). The "B" suffix denotes updated wafer fab process and enhanced avalanche ruggedness (1.2 J vs. prior 0.9 J), improving reliability in inductive load applications.
Does the mounting base require electrical isolation from the PCB ground plane?
No-the mounting base is electrically connected to the drain (pin 2) and must be soldered directly to a dedicated high-current copper pour. Isolation would compromise thermal performance and violate safe operating area limits. Use insulating thermal pads only if the PCB layer beneath is non-conductive and thermally coupled via thermal vias to internal ground planes.
BUK764R0-55B,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- 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:
- 4mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 86 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 6776 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 300W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
BUK764R0-55B,118 FAQ
1.How can I place an order for BUK764R0-55B,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK764R0-55B,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 BUK764R0-55B,118 reliable?
The price and inventory of BUK764R0-55B,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK764R0-55B,118 is usually 5 days.
3.What payment methods are accepted for BUK764R0-55B,118?
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4.How is shipping managed for BUK764R0-55B,118?
BUK764R0-55B,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK764R0-55B,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 BUK764R0-55B,118?
For technical support, including BUK764R0-55B,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK764R0-55B,118 requirements.
6.How does Aetrix verify that BUK764R0-55B,118 is sourced from the original manufacturer or authorized distributors?
All BUK764R0-55B,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 BUK764R0-55B,118 meets industry standards.
7.What is the process for return or replacement of BUK764R0-55B,118?
All BUK764R0-55B,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK764R0-55B,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 BUK764R0-55B,118 part is unused and in its original packaging.
Return procedure for BUK764R0-55B,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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