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Nexperia USA Inc. BUK9K134-100EX
- Part No.:
- BUK9K134-100EX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FET, MOSFET Arrays
- Package:
- SOT-1205, 8-LFPAK56
- Datasheet:
-
BUK9K134-100EX.pdf
- Description:
- MOSFET 2N-CH 100V 8.5A LFPAK56D
- Quantity:
- Payment:
- Shipping:
Inventory:9,675
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Product details
Overview
BUK9K134-100EX from Nexperia is a dual N-channel logic-level MOSFET in LFPAK56D (SOT1205) package, rated for 100 V drain-source voltage, 159 mΩ RDS(on) at VGS = 5 V and Tj = 25 °C, and qualified to AEC-Q101 for automotive use. It delivers 8.5 A continuous drain current at Tmb = 25 °C and supports thermally demanding applications up to 175 °C junction temperature - deployed in transmission control and 48 V solenoid switching circuits.
For engineers reviewing the BUK9K134-100EX datasheet, BUK9K134-100EX pinout, BUK9K134-100EX application, or BUK9K134-100EX equivalent, key selection criteria include its dual-channel layout, true logic-level gate drive (VGS(th) > 0.5 V at 175 °C), repetitive avalanche rating, and low thermal resistance of 4.68 K/W (junction-to-mounting base).
Technical Context
This device integrates two independent N-channel TrenchMOS transistors in a single LFPAK56D package, sharing no internal connection between channels - enabling fully isolated high-side or low-side switching per FET. Each channel features identical static and dynamic characteristics, including matched RDS(on), QGD = 3.6 nC, and Ciss = 566–755 pF.
Designed for automotive-grade reliability, it operates across -55 °C to +175 °C junction temperature range with VGS rating of ±15 V (pulsed), and supports safe operating area (SOA) compliance up to 10 µs pulse width at 34 A peak drain current and 100 V VDS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V - Maximum blocking voltage for 12 V/24 V/48 V automotive bus systems without derating. |
| RDS(on) | 127–159 mΩ @ VGS = 5 V, Tj = 25 °C - Enables efficient power switching with <1.3 W conduction loss at 8.5 A. |
| ID | 8.5 A continuous @ Tmb = 25 °C - Sustains motor/solenoid loads under standard heatsink conditions. |
| Ptot | 32 W @ Tmb = 25 °C - Supports high-power density mounting on PCB copper areas or small heatsinks. |
| Rth(j-mb) | 4.68 K/W - Enables direct thermal coupling to chassis or metal-core PCB for high-reliability automotive thermal management. |
| QGD | 3.6 nC - Low gate-drain charge minimizes switching losses and improves EMI behavior in PWM-driven loads. |
| Tj max | 175 °C - Qualified for under-hood environments including transmission control modules and engine bay actuators. |
Pinout & Package
LFPAK56D (SOT1205) is a thermally enhanced surface-mount package with exposed mounting base, 8 leads, and optimized copper clip construction for low-inductance, high-current routing. Its footprint enables >2× power density versus SO-8 while maintaining compatibility with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S1 | Source terminal of FET1 - connects directly to low-side return path; electrically isolated from S2. |
| 2 | G1 | Gate input of FET1 - logic-level compatible (VGS(th) > 0.5 V at 175 °C); requires no level-shifting driver. |
| 3 | S2 | Source terminal of FET2 - independent return node; enables dual half-bridge or dual low-side configuration. |
| 4 | G2 | Gate input of FET2 - fully decoupled from G1; supports asynchronous or synchronized dual-channel control. |
| 5 & 6 | D2 | Drain terminal of FET2 - internally paralleled pins (5 and 6) reduce bond-wire inductance and improve current sharing. |
| 7 & 8 | D1 | Drain terminal of FET1 - internally paralleled pins (7 and 8) provide robust high-current connection to power rail. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including transmission control and engine management systems. |
| Repetitive avalanche rated | Withstands repeated inductive energy spikes up to EAS = 12.6 mJ per FET without degradation. |
| True logic-level gate | VGS(th) remains >0.5 V at 175 °C - ensures reliable turn-on with standard 3.3 V/5 V microcontroller outputs. |
| Thermally rugged | Rated for continuous operation at Tj = 175 °C and Tstg = -55 to +175 °C - suitable for under-hood placement. |
| Low Rth(j-mb) | 4.68 K/W enables >70 % higher power dissipation vs. standard SO-8 at same board area and thermal interface. |
Applications
| Transmission Control Module | 48 V Solenoid Driver |
|---|---|
|
Use Scenario: Precise timing-controlled engagement of hydraulic solenoids in automatic transmissions. IC Role / Device Role / Timing Role: Dual low-side switch driving two independent solenoid coils with independent enable/disable control. Use Value: Matched RDS(on) and thermal performance ensure consistent actuation force and lifetime across both channels under 175 °C ambient. |
Use Scenario: High-duty-cycle on/off control of pneumatic brake actuators in 48 V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Single-package dual-channel power switch replacing discrete SO-8 pairs to reduce PCB area and thermal mismatch. Use Value: Repetitive avalanche rating absorbs back-EMF from inductive solenoid collapse without external snubbers. |
| 12 V Motor Fan Controller | 24 V Lamp Dimming Circuit |
|
Use Scenario: PWM-controlled cooling fan in engine bay with variable speed and stall protection. IC Role / Device Role / Timing Role: Half-bridge high-side/low-side configuration using one FET as synchronous rectifier and the other as main switch. Use Value: Low QGD and fast tf (10.3 ns) enable clean 20 kHz PWM switching with minimal shoot-through risk. |
Use Scenario: Digital dimming of LED headlamps and interior lighting in commercial trucks. IC Role / Device Role / Timing Role: Dual parallel low-side switches driving separate lamp strings for redundancy and load balancing. Use Value: Independent source terminals (S1/S2) allow separate current sensing and fault isolation per channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual N-channel automotive MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL220N6F7 | 60 V rating, lower RDS(on) (1.3 mΩ), but only single-channel in PowerFLAT 5x6 package. | Lacks dual-channel integration; requires two devices for same functionality, increasing board area and thermal coupling complexity. | Prefer when 60 V system voltage and ultra-low on-resistance outweigh dual-channel consolidation benefits. |
| ON Semiconductor NTMFS5C675NL | 60 V, 1.2 mΩ, single-channel PowerTrench® MOSFET in SO-8; not AEC-Q101 qualified. | Not automotive-qualified; unsuitable for safety-critical or under-hood deployment without additional validation. | Select only for non-automotive industrial 60 V applications where qualification overhead is unnecessary. |
Compared with STL220N6F7 and NTMFS5C675NL, BUK9K134-100EX uniquely combines dual-channel integration, 100 V rating, AEC-Q101 qualification, and 175 °C operation - making it the only drop-in solution for space-constrained, thermally aggressive automotive power nodes requiring channel independence and long-term reliability.
Availability
BUK9K134-100EX is available at Aetrix Electronics and suitable for automotive transmission control, 48 V solenoid actuation, and 12 V/24 V motor fan systems requiring stable component supply across multi-year production cycles.
Supply support for BUK9K134-100EX 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 essential semiconductors - delivering discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
BUK9K134-100EX belongs to Nexperia's Automotive Logic-Level MOSFET product line, engineered specifically for robust, thermally resilient power switching in next-generation 12 V–48 V vehicle architectures.
FAQ
Is BUK9K134-100EX pin-compatible with standard SO-8 dual MOSFETs?
No - it uses LFPAK56D (SOT1205), a 8-lead thermally enhanced package with different pin spacing and mounting base layout. The footprint requires dedicated land pattern per Nexperia's SOT1205 outline; direct SO-8 replacement is mechanically and thermally incompatible.
What is the maximum allowable gate drive voltage for reliable operation?
The absolute maximum VGS is ±15 V (pulsed) per datasheet limiting values. For continuous operation, Nexperia recommends ≤12 V to ensure long-term gate oxide integrity, especially at elevated temperatures up to 175 °C junction.
Does BUK9K134-100EX include integrated body diodes, and what are their recovery characteristics?
Yes - each FET has an inherent source-drain diode with typical VSD = 0.83–1.2 V at IS = 5 A and Tj = 25 °C. Reverse recovery time is 32.3 ns with Qr = 39.9 nC, enabling efficient synchronous rectification in DC-DC converters up to 200 kHz.
Can both channels be used in parallel to increase current capacity?
No - the device is not characterized for paralleling. FET1 and FET2 have independent dies with no matching guarantee; thermal and electrical imbalance risks exceed benefits. Use a single-channel higher-current part (e.g., BUK7K13-100E) instead for >8.5 A requirements.
BUK9K134-100EX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOT-1205, 8-LFPAK56
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- 2 N-Channel (Dual)
- FET Feature:
- Logic Level Gate
- Drain to Source Voltage (Vdss):
- 100V
- Current - Continuous Drain (Id) @ 25°C:
- 8.5A
- Rds On (Max) @ Id, Vgs:
- 159mOhm @ 5A, 5V
- Vgs(th) (Max) @ Id:
- 2.1V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 7.4nC @ 5V
- Input Capacitance (Ciss) (Max) @ Vds:
- 755pF @ 25V
- Power - Max:
- 32W
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LFPAK56D
BUK9K134-100EX FAQ
1.How can I place an order for BUK9K134-100EX through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK9K134-100EX 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 BUK9K134-100EX reliable?
The price and inventory of BUK9K134-100EX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9K134-100EX is usually 5 days.
3.What payment methods are accepted for BUK9K134-100EX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9K134-100EX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK9K134-100EX?
BUK9K134-100EX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK9K134-100EX 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 BUK9K134-100EX?
For technical support, including BUK9K134-100EX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9K134-100EX requirements.
6.How does Aetrix verify that BUK9K134-100EX is sourced from the original manufacturer or authorized distributors?
All BUK9K134-100EX 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 BUK9K134-100EX meets industry standards.
7.What is the process for return or replacement of BUK9K134-100EX?
All BUK9K134-100EX units undergo pre-shipment inspection (PSI). If there is an issue with BUK9K134-100EX, 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 BUK9K134-100EX part is unused and in its original packaging.
Return procedure for BUK9K134-100EX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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