My Inquiry
My Account
Nexperia USA Inc. BUK9K29-100E,115
- Part No.:
- BUK9K29-100E,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FET, MOSFET Arrays
- Package:
- SOT-1205, 8-LFPAK56
- Datasheet:
-
BUK9K29-100E,115.pdf
- Description:
- MOSFET 2N-CH 100V 30A LFPAK56D
- Quantity:
- Payment:
- Shipping:
Inventory:7,037
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BUK9K29-100E from Nexperia is a dual N-channel TrenchMOS logic-level power MOSFET in LFPAK56D (SOT1205) package, qualified to AEC-Q101 for automotive use. It delivers 100 V drain-source voltage rating, 30 A continuous drain current at 25 °C mounting base temperature, and 25.1 mΩ typical RDS(on) at VGS = 5 V and Tj = 25 °C - enabling high-efficiency 12 V motor and solenoid control in start-stop micro-hybrid systems.
For engineers reviewing the BUK9K29-100E datasheet, BUK9K29-100E pinout, BUK9K29-100E application, or BUK9K29-100E equivalent, key selection criteria include its true logic-level gate (VGS(th) > 0.5 V at 175 °C), repetitive avalanche rating, 175 °C junction temperature capability, and dual-FET integration for space-constrained transmission control modules.
Technical Context
This dual N-channel MOSFET uses TrenchMOS technology to achieve low on-resistance and fast switching with minimal gate charge (QG(tot) = 54 nC). Its symmetric FET1/FET2 structure supports independent channel control in half-bridge or parallel configurations, with matched static and dynamic characteristics across temperature.
The device features integrated source-drain diodes (VSD = 0.78 V typ. at 15 A, 25 °C) and is rated for non-repetitive avalanche energy of 83 mJ under defined conditions. Thermal resistance from junction to mounting base is 2.21 K/W, enabling high-power operation when mounted on thermally optimized PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V - Maximum blocking voltage for 12 V automotive systems with load-dump transients |
| ID (continuous) | 30 A at Tmb = 25 °C - Supports high-current lamp/motor loads without external heatsinking |
| RDS(on) | 25.1 mΩ typ. @ VGS = 5 V, Tj = 25 °C - Enables <1 W conduction loss at 20 A, critical for thermal management |
| QG(tot) | 54 nC - Low gate charge reduces driver power requirement and switching losses in PWM control |
| Tj max | 175 °C - Qualified for under-hood environments including engine bay and transmission control units |
| EAS | 83 mJ - Repetitive avalanche capability allows robust operation during inductive load turn-off |
| Rth(j-mb) | 2.21 K/W - Enables direct thermal coupling to copper planes for high-power density PCB layouts |
Pinout & Package
LFPAK56D (SOT1205) is a thermally enhanced plastic surface-mount package with 8 leads and exposed metal mounting base for low thermal resistance. Its compact 4.7 × 5.3 mm footprint supports high-density automotive PCB designs while delivering superior power dissipation versus SO8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S1 | Source terminal for FET1 - connects to low-side return path of first channel |
| 2 | G1 | Gate terminal for FET1 - accepts logic-level drive (≥2.6 V threshold) for direct MCU interface |
| 3 | S2 | Source terminal for FET2 - electrically isolated from S1; enables dual independent switches |
| 4 | G2 | Gate terminal for FET2 - fully independent control; no internal gate coupling |
| 5, 6 | D2 | Drain terminals for FET2 - paralleled pins reduce inductance and current density in high-current paths |
| 7, 8 | D1 | Drain terminals for FET1 - paralleled pins support >30 A peak current with minimal IR drop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22 |
| True logic-level gate | VGS(th) > 0.5 V at 175 °C ensures turn-on compatibility with 3.3 V/5 V MCUs across full operating range |
| Repetitive avalanche rated | 83 mJ single-pulse EAS enables safe interruption of inductive currents without external snubbers |
| 175 °C junction rating | Supports operation in high-ambient zones like transmission control modules and engine management ECUs |
| Low RDS(on) drift with temperature | RDS(on) increases only 2.7× from 25 °C to 175 °C (vs. >3× for standard MOSFETs), improving thermal stability |
Applications
| Start-Stop Micro-Hybrid Control | Transmission Solenoid Driver |
|---|---|
|
Use Scenario: Managing battery-to-starter and alternator-to-battery power paths during engine restart cycles in 12 V micro-hybrid vehicles. IC Role / Device Role / Timing Role: Dual-channel high-side/low-side switch controlling bidirectional energy flow between starter motor and 12 V bus. Use Value: 100 V rating withstands load-dump transients; dual FETs enable compact half-bridge topology with shared gate drivers and thermal path. |
Use Scenario: Driving 12 V hydraulic solenoids in automatic transmission valve bodies requiring precise PWM-controlled current up to 25 A. IC Role / Device Role / Timing Role: Low-side switch with integrated freewheeling diode handling inductive kickback during 1–10 kHz PWM commutation. Use Value: 25.1 mΩ RDS(on) limits conduction loss to <1.6 W at 25 A; 83 mJ avalanche rating absorbs flyback energy without clamping circuits. |
| Engine Cooling Fan Module | Headlamp Beam Switching |
|
Use Scenario: Controlling brushless DC cooling fan motors in engine compartments where ambient temperatures exceed 105 °C. IC Role / Device Role / Timing Role: High-current half-bridge leg (using one FET as high-side, the other as low-side) with synchronous rectification. Use Value: 175 °C Tj rating and 2.21 K/W Rth(j-mb) allow direct mounting to aluminum heat spreaders, eliminating discrete heatsinks. |
Use Scenario: Switching high-beam/low-beam LED arrays in adaptive front-lighting systems with rapid on/off transitions. IC Role / Device Role / Timing Role: Independent dual-channel switch routing power to separate LED strings with <100 ns switching timing control. Use Value: 54 nC QG(tot) and 35.1 ns fall time enable clean, jitter-free beam transitions; dual isolation prevents crosstalk between beams. |
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 VDS, 220 A ID, TO-220FP package - higher current but lower voltage rating and larger footprint | Targeted at 48 V mild-hybrid systems; unsuitable for 12 V load-dump environments requiring 100 V margin | Select only if system voltage is ≤42 V and board space permits TO-220 mounting |
| ON Semiconductor NTMFS5C675NL | 60 V VDS, 30 A ID, PowerTDFN8 - same current but 40 V lower breakdown voltage and no AEC-Q101 qualification | Lacks automotive qualification and avalanche ruggedness; intended for industrial/commercial DC-DC converters | Not recommended for automotive safety-critical functions; verify full AEC-Q101 test reports before substitution |
Compared with STL220N6F7 and NTMFS5C675NL, the BUK9K29-100E uniquely combines 100 V rating, AEC-Q101 qualification, and dual-channel LFPAK56D integration - making it the only option for space-constrained, thermally demanding 12 V automotive switching where voltage margin and reliability are non-negotiable.
Availability
BUK9K29-100E is available at Aetrix Electronics and suitable for start-stop micro-hybrid control, transmission solenoid driving, and engine cooling fan modules requiring stable component supply across extended automotive production lifecycles.
Supply support for BUK9K29-100E 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-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The BUK9K29-100E belongs to Nexperia's TrenchMOS automotive logic-level portfolio, engineered specifically for ultra-reliable, high-current switching in thermally aggressive 12 V vehicle subsystems.
FAQ
Is BUK9K29-100E pin-compatible with earlier BUK9Kxx-100E series variants?
Yes - all BUK9Kxx-100E devices share identical LFPAK56D (SOT1205) pinout and mechanical footprint. Pin assignments (S1/G1/S2/G2/D2/D2/D1/D1) and thermal pad layout are standardized across the series, enabling drop-in replacement where RDS(on) and QG requirements align.
What is the maximum allowable gate drive voltage for reliable operation?
The absolute maximum VGS is ±15 V for pulsed operation and ±10 V for DC conditions per the datasheet limiting values table. Driving above +10 V DC risks long-term gate oxide degradation; +12 V is acceptable only for short pulses (<10 µs) with duty cycle <1%.
Can both FETs be paralleled to increase current capacity?
No - FET1 and FET2 are electrically isolated but not matched for current sharing. Their RDS(on) tolerance (±15%) and thermal coupling differences make forced paralleling unsafe. Use each channel independently or select a single higher-current device like BUK7K13-100E for >30 A needs.
Does the device include integrated ESD protection on gate terminals?
Yes - the BUK9K29-100E incorporates on-chip gate protection diodes rated to ±2 kV HBM per JESD22-A114. This meets AEC-Q101 requirements for electrostatic discharge immunity and eliminates need for external gate Zener clamps in most automotive PCB layouts.
BUK9K29-100E,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- 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:
- 30A
- Rds On (Max) @ Id, Vgs:
- 27mOhm @ 10A, 10V
- Vgs(th) (Max) @ Id:
- 2.1V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 54nC @ 10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 3491pF @ 25V
- Power - Max:
- 68W
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LFPAK56D
BUK9K29-100E,115 FAQ
1.How can I place an order for BUK9K29-100E,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK9K29-100E,115 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 BUK9K29-100E,115 reliable?
The price and inventory of BUK9K29-100E,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9K29-100E,115 is usually 5 days.
3.What payment methods are accepted for BUK9K29-100E,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9K29-100E,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK9K29-100E,115?
BUK9K29-100E,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK9K29-100E,115 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 BUK9K29-100E,115?
For technical support, including BUK9K29-100E,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9K29-100E,115 requirements.
6.How does Aetrix verify that BUK9K29-100E,115 is sourced from the original manufacturer or authorized distributors?
All BUK9K29-100E,115 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 BUK9K29-100E,115 meets industry standards.
7.What is the process for return or replacement of BUK9K29-100E,115?
All BUK9K29-100E,115 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9K29-100E,115, 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 BUK9K29-100E,115 part is unused and in its original packaging.
Return procedure for BUK9K29-100E,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BUK9K29-100E,115 Tags
-
SSM6N7002KFU,LF
Toshiba Semiconductor and Storage
-
2N7002DW-7-F
Diodes Incorporated
-
SSM6L56FE,LM
Toshiba Semiconductor and Storage
-
SSM6N37FU,LF
Toshiba Semiconductor and Storage
-
2N7002DWH6327XTSA1
Infineon Technologies
-
2N7002BKS,115
Nexperia USA Inc.
-
DMG1016UDW-7
Diodes Incorporated
-
UM6K33NTN
Rohm Semiconductor
-
DMG6602SVT-7
Diodes Incorporated
-
EM6K34T2CR
Rohm Semiconductor
-
UM6K34NTCN
Rohm Semiconductor
-
DMG6601LVT-7
Diodes Incorporated
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
