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Nexperia USA Inc. BUK7526-100B,127
- Part No.:
- BUK7526-100B,127
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-220-3
- Datasheet:
-
BUK7526-100B,127.pdf
- Description:
- MOSFET N-CH 100V 49A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,329
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Product details
Overview
BUK7526-100B,127 from NXP Semiconductors is a standard-level N-channel TrenchMOS FET in TO-220AB (SOT78A) package, rated for 100 V VDS, 49 A continuous drain current at Tmb = 25 °C, and 22 mΩ typical RDS(on) at VGS = 10 V and Tj = 25 °C. It is AEC-Q101 qualified for automotive critical loads including motors, lamps, and solenoids in 12 V/24 V systems.
For engineers reviewing the BUK7526-100B,127 datasheet, BUK7526-100B,127 pinout, BUK7526-100B,127 application, or BUK7526-100B,127 equivalent, key selection criteria include its 175 °C junction rating, low gate charge (QG(tot) = 38 nC), avalanche ruggedness (144 mJ), and mounting-base thermal resistance of 0.95 K/W - all critical for thermally constrained automotive power switching.
Technical Context
This device employs TrenchMOS technology to achieve low conduction losses and stable threshold voltage across temperature (VGS(th) = 2–4.4 V). Its standard-level gate drive compatibility (VGS = 10 V) enables direct interface with microcontroller GPIOs without level-shifting circuitry.
The integrated source-drain diode supports freewheeling in inductive loads, with VSD = 0.85 V at IS = 25 A and trr = 94 ns. Its SOA is defined up to 100 V and 197 A peak drain current, validated under unclamped inductive switching conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V - Maximum blocking voltage for 12 V/24 V automotive bus protection and load switching. |
| RDS(on) | 22 mΩ typ @ VGS = 10 V, ID = 25 A, Tj = 25 °C - Enables <1.4 W conduction loss at 25 A, reducing heatsink requirements. |
| ID (cont) | 49 A @ Tmb = 25 °C - Supports high-current DC loads such as starter relays and HVAC blowers without derating. |
| EAS | 144 mJ - Withstands unclamped inductive energy during turn-off, eliminating need for external snubbers in motor control. |
| QG(tot) | 38 nC - Enables fast switching with moderate gate driver strength (e.g., TC4427), minimizing switching losses at 20–100 kHz. |
| Rth(j-mb) | 0.95 K/W - Direct thermal path to heatsink allows >100 W power dissipation with modest heatsinking (e.g., 10 cm² aluminum). |
| Tj max | 175 °C - Qualified for under-hood environments where ambient exceeds 125 °C, supporting AEC-Q100 Grade 0 compliance. |
Pinout & Package
TO-220AB (SOT78A) plastic single-ended package with heatsink-mounted base; 3 leads; mounting base electrically connected to drain.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal accepting standard 10 V logic-level drive; requires <38 nC charge for full enhancement. |
| 2 (D) | Drain | Main high-side power terminal; internally bonded to mounting base for low-inductance thermal and electrical path. |
| 3 (S) | Source | Power return node; referenced to system ground in low-side switch configurations. |
| Mounting Base (mb) | Drain connection | Electrically tied to drain pin; must be isolated from chassis unless drain is grounded; primary thermal interface. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive safety-critical applications including engine control, body electronics, and ADAS power stages. |
| 175 °C junction rating | Enables operation in under-hood locations without forced air cooling or oversized heatsinks. |
| Low RDS(on) × QG figure-of-merit | 22 mΩ × 38 nC = 0.84 Ω·nC - Balances conduction and switching efficiency for 10–50 kHz PWM motor drives. |
| Integrated source-drain diode | VSD = 0.85 V @ 25 A ensures efficient freewheeling in brushed DC motor H-bridge and relay drivers. |
| Unclamped avalanche ruggedness | 144 mJ EAS allows robust operation in inductive load switching without external clamping components. |
Applications
| Automotive Body Control Module (BCM) | 12 V Starter Relay Driver |
|---|---|
|
Use Scenario: Switching high-current lighting, window lifters, and door locks in centralized vehicle body controllers. IC Role / Device Role / Timing Role: Low-side power switch controlling 12 V loads with PWM dimming and diagnostic current sensing. Use Value: 22 mΩ RDS(on) minimizes self-heating during sustained 30 A loads, enabling compact PCB layout without external heatsinks. |
Use Scenario: Replacing electromechanical relays in starter circuits to reduce wear, noise, and response time. IC Role / Device Role / Timing Role: High-current, high-reliability main power switch activated by ignition signal with overtemperature shutdown. Use Value: 175 °C Tj rating and 144 mJ avalanche energy ensure survival during cranking surge transients and hot re-start conditions. |
| 24 V Commercial Vehicle HVAC Blower | Industrial Solenoid Valve Controller |
|
Use Scenario: Controlling brushless or brushed blowers in heavy-duty truck HVAC systems exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: High-side or low-side switch delivering up to 49 A continuous current with thermal foldback protection. Use Value: 0.95 K/W Rth(j-mb) enables direct bolt-down to chassis, simplifying thermal design while maintaining <125 °C case temperature at full load. |
Use Scenario: Driving 24 V solenoid valves in agricultural machinery and construction equipment with frequent on/off cycling. IC Role / Device Role / Timing Role: Fast-switching power stage managing inductive kickback via integrated body diode and avalanche capability. Use Value: 94 ns reverse recovery time and 13 nC QGD limit voltage overshoot during turn-off, reducing EMI and MOSFET stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power FET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP110N10F7 | 100 V, 110 A, RDS(on) = 8.5 mΩ @ 10 V, but TO-220FP package (no exposed drain tab); higher QG = 72 nC. | Higher current capacity but lower thermal performance due to insulated package; unsuitable for direct heatsink mounting. | Select only if board space permits larger footprint and thermal management uses PCB copper instead of metal heatsink. |
| IRF540NPBF | 100 V, 33 A, RDS(on) = 44 mΩ @ 10 V, TO-220AB, no AEC-Q101 qualification, Tj = 175 °C. | Lacks automotive qualification and has double the on-resistance; lower avalanche rating (65 mJ). | Acceptable for non-automotive industrial use where cost is prioritized over reliability and thermal efficiency. |
Compared with STP110N10F7 and IRF540NPBF, BUK7526-100B,127 uniquely combines AEC-Q101 qualification, low RDS(on), and TO-220AB's direct-mount thermal path - making it optimal for space-constrained, thermally demanding automotive power stages where reliability is non-negotiable.
Availability
BUK7526-100B,127 is available at Aetrix Electronics and suitable for automotive body control modules, 12 V/24 V starter systems, and industrial solenoid valve controllers requiring stable component supply across multi-year production cycles.
Supply support for BUK7526-100B,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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
BUK7526-100B,127 belongs to NXP's TrenchMOS automotive power FET product line, engineered specifically for high-reliability, thermally robust switching in engine bays and chassis-mounted electronic control units.
FAQ
Is BUK7526-100B,127 suitable for high-frequency PWM motor control?
Yes - with QG(tot) = 38 nC and QGD = 13 nC, it supports efficient switching up to 100 kHz in brushed DC motor drives. Its 40 ns rise time and 19 ns fall time (with 10 Ω gate resistor) minimize overlap losses, and the 175 °C rating maintains stability during sustained PWM operation in enclosed enclosures.
What is the maximum safe operating temperature for the mounting base?
The mounting base (Tmb) must not exceed 150 °C continuously to maintain rated 49 A drain current. At Tmb = 100 °C, continuous current derates to 34 A per Figure 2. Thermal design must ensure Tmb stays below this limit using verified heatsink calculations based on Rth(j-mb) = 0.95 K/W.
Does BUK7526-100B,127 require a gate resistor for automotive ESD protection?
A series gate resistor (typically 10–47 Ω) is recommended to dampen ringing and limit peak gate current during fast edge transitions. While not required for basic ESD immunity, it improves EMC performance and prevents accidental oscillation when driven by microcontrollers with strong output drivers, especially in noisy automotive harness environments.
Can BUK7526-100B,127 replace a mechanical relay in a 12 V starter circuit?
Yes - its 197 A peak drain current (IDM) and 144 mJ avalanche energy enable reliable replacement of 12 V starter relays. It eliminates contact bounce, extends lifetime beyond 100,000 cycles, and supports diagnostic feedback via current-sense resistors. Ensure gate drive delivers ≥10 V with ≤1 µs rise time and provide TVS protection on the drain line per ISO 7637-2.
BUK7526-100B,127 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- 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):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 49A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 26mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 38 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2891 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 157W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AB
BUK7526-100B,127 FAQ
1.How can I place an order for BUK7526-100B,127 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7526-100B,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 BUK7526-100B,127 reliable?
The price and inventory of BUK7526-100B,127 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7526-100B,127 is usually 5 days.
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4.How is shipping managed for BUK7526-100B,127?
BUK7526-100B,127 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7526-100B,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 BUK7526-100B,127?
For technical support, including BUK7526-100B,127 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7526-100B,127 requirements.
6.How does Aetrix verify that BUK7526-100B,127 is sourced from the original manufacturer or authorized distributors?
All BUK7526-100B,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 BUK7526-100B,127 meets industry standards.
7.What is the process for return or replacement of BUK7526-100B,127?
All BUK7526-100B,127 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7526-100B,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 BUK7526-100B,127 part is unused and in its original packaging.
Return procedure for BUK7526-100B,127:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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