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Nexperia USA Inc. BUK9620-100B,118
- Part No.:
- BUK9620-100B,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
BUK9620-100B,118.pdf
- Description:
- MOSFET N-CH 100V 63A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,200
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Product details
Overview
BUK9620-100B from Nexperia is an AEC-Q101-qualified N-channel TrenchMOS logic-level power MOSFET in D2PAK (SOT404) package, rated for 100 V VDS, 63 A continuous drain current at Tmb = 25 °C, and 203 W total power dissipation. It delivers 16.2 mΩ typical RDS(on) at VGS = 5 V and Tj = 25 °C, enabling efficient 12 V/24 V automotive load switching in thermally demanding environments up to 175 °C junction temperature.
For engineers reviewing the BUK9620-100B datasheet, BUK9620-100B pinout, BUK9620-100B application, or BUK9620-100B equivalent, key selection criteria include logic-level gate drive compatibility (VGS(th) = 1.58 V typ), avalanche ruggedness (222 mJ unclamped), thermal resistance (Rth(j-mb) = 0.75 K/W), and AEC-Q101 qualification for automotive critical systems.
Technical Context
This MOSFET employs TrenchMOS technology to achieve low on-state resistance while maintaining robust switching performance. Its gate threshold voltage (1.58 V typ at 25 °C) ensures reliable turn-on with standard 5 V logic controllers, and its 175 °C maximum junction temperature supports operation in engine bay and under-hood applications without derating.
The device features a monolithic source-drain diode with 0.86 V forward voltage at 25 A and 80 ns reverse recovery time, supporting inductive load commutation. Its dynamic parameters-including 53.4 nC total gate charge and 21.2 nC gate-drain charge-enable predictable switching behavior in high-current DC-DC and motor drive topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V maximum drain-source voltage - supports 42 V automotive systems with margin against transients. |
| RDS(on) | 16.2 mΩ typical at VGS = 5 V, ID = 25 A, Tj = 25 °C - enables <1 W conduction loss at 25 A. |
| ID (cont) | 63 A maximum continuous drain current at Tmb = 25 °C - suitable for high-power solenoid and lamp drivers. |
| EAS | 222 mJ non-repetitive avalanche energy - provides robustness against inductive switching spikes without external snubbers. |
| Rth(j-mb) | 0.75 K/W thermal resistance from junction to mounting base - allows direct heatsink mounting for high-power dissipation. |
| VGS(th) | 1.58 V typical gate-source threshold voltage - ensures full enhancement with 3.3 V or 5 V microcontroller outputs. |
| QG(tot) | 53.4 nC total gate charge - determines gate driver sizing and switching loss in PWM applications. |
Pinout & Package
Package: D2PAK (SOT404), plastic single-ended surface-mounted package with isolated mounting base connected to drain. Dimensions per IEC JEDEC outline: 15.8 × 10.3 × 4.5 mm (L × W × H), with 3 leads (lead 1 cropped).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Logic-level control input; requires ≤5 V drive for full enhancement; gate leakage <100 nA at ±10 V. |
| 2 (D) | Drain | Main high-side power terminal; electrically tied to mounting base for low-inductance heatsinking. |
| 3 (S) | Source | Power return path; referenced to gate drive; internal source inductance 7.5 nH limits high-di/dt ringing. |
| Mounting Base (mb) | Drain connection | Exposed copper pad soldered to PCB copper pour or heatsink; carries full drain current and dissipates >95% of heat. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive safety-critical applications including engine control, body electronics, and ADAS power stages. |
| Logic-level gate drive | Turns fully on with 5 V supply - eliminates need for gate driver ICs in MCU-based 12 V/24 V systems. |
| 175 °C junction rating | Operates continuously at ambient temperatures up to 125 °C when mounted on ≥10 cm² 2 oz copper with thermal vias. |
| Low RDS(on) × QG figure of merit | ~850 mΩ·nC - balances conduction and switching losses for high-efficiency 10–100 kHz switching. |
| Integrated source-drain diode | 0.86 V VSD at 25 A enables freewheeling in H-bridge motor drives without discrete diodes. |
Applications
| Automotive Engine Control | Commercial Vehicle Lighting |
|---|---|
|
Use Scenario: High-side switching of fuel injector coils and ignition coils in 12 V/24 V engine management units. IC Role / Device Role / Timing Role: Power switch controlling coil energization timing with precise µs-level turn-on/turn-off (td(on) = 45 ns, tf = 77 ns). Use Value: Avalanche ruggedness (222 mJ) absorbs inductive kickback without clamping circuits, reducing BOM count and board space. |
Use Scenario: PWM dimming and on/off control of LED headlamps and fog lamps in heavy-duty trucks. IC Role / Device Role / Timing Role: Low-loss high-current switch handling 30–60 A peak loads with minimal thermal rise due to 0.75 K/W Rth(j-mb). Use Value: 16.2 mΩ RDS(on) limits conduction loss to <1.5 W at 30 A, enabling compact heatsink-free designs in sealed lamp housings. |
| Industrial Solenoid Driver | Off-Highway Equipment Motor Control |
|
Use Scenario: Driving 24 V hydraulic solenoids in agricultural machinery requiring high reliability under vibration and temperature cycling. IC Role / Device Role / Timing Role: Robust power stage with 175 °C Tj rating and AEC-Q101 qualification ensuring field longevity in harsh environments. Use Value: 63 A continuous current capability supports solenoids drawing up to 50 A surge, eliminating need for paralleling devices. |
Use Scenario: Half-bridge leg in 42 V starter-generator inverters for construction equipment. IC Role / Device Role / Timing Role: High-current N-channel switch paired with complementary P-channel or bootstrap-driven high-side in bidirectional motor control. Use Value: 53.4 nC gate charge enables clean switching at 20 kHz with standard 1 A gate drivers, minimizing EMI in EMC-sensitive off-road systems. |
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 |
|---|---|---|---|
| STL220N10F7 | 100 V, 220 A, RDS(on) = 3.5 mΩ @ 10 V; requires 10 V gate drive for full spec; not AEC-Q101 qualified. | Higher current capacity but lacks automotive qualification and logic-level compatibility. | Select only for non-automotive 48 V industrial systems where gate drive voltage ≥10 V is available. |
| IRF1405PBF | 55 V, 169 A, RDS(on) = 5.3 mΩ @ 10 V; VGS(th) = 2–4 V; no AEC-Q101 rating; TO-220 package. | Limited to 55 V systems; higher gate threshold increases risk of partial turn-on with 5 V logic; no thermal performance data for SMT mounting. | Use only in legacy 12 V non-automotive designs with existing TO-220 footprint and 10 V gate drive infrastructure. |
Compared with STL220N10F7 and IRF1405PBF, BUK9620-100B uniquely combines AEC-Q101 compliance, true 5 V logic-level operation, D2PAK thermal performance, and 100 V rating - making it the sole fit for new automotive 12 V/24 V/42 V power switching designs requiring zero gate driver overhead and guaranteed qualification.
Availability
BUK9620-100B is available at Aetrix Electronics and suitable for automotive engine control, commercial vehicle lighting, industrial solenoid actuation, and off-highway motor control requiring stable component supply across extended production lifecycles.
Supply support for BUK9620-100B 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 discrete and logic devices, with leadership in automotive-qualified MOSFETs and ESD protection.
BUK9620-100B belongs to Nexperia's TrenchMOS logic-level automotive power MOSFET product line, engineered specifically for AEC-Q101-compliant high-current switching in 12 V–42 V automotive subsystems where thermal resilience and gate drive simplicity are critical.
FAQ
Is BUK9620-100B suitable for 42 V automotive systems?
Yes. Its 100 V VDS rating provides 135 % overvoltage margin above the 42 V nominal rail, accommodating load-dump transients up to 87 V per ISO 7637-2 Pulse 5a. The device is AEC-Q101 qualified and specified for operation from −55 °C to +175 °C junction temperature, meeting stringent automotive environmental requirements.
What is the recommended PCB layout for thermal performance?
Mount the D2PAK package directly onto a ≥10 cm² copper pour on the component layer, connected via ≥8 thermal vias (0.3 mm diameter, 0.8 mm pitch) to inner-layer and backside ground planes. The mounting base must be soldered to this copper area to achieve the specified 0.75 K/W Rth(j-mb); insufficient copper or missing vias will degrade thermal performance by >40 %.
Does BUK9620-100B require a gate resistor for driving with a microcontroller?
A series gate resistor (10–47 Ω) is recommended to dampen ringing caused by 7.5 nH internal source inductance and PCB trace inductance. While the device turns on fully with 5 V logic, omitting the resistor may cause oscillation during edge transitions, increasing switching losses and EMI - especially at >10 kHz PWM frequencies.
Can BUK9620-100B replace older MOSFETs like BUZ11 in automotive upgrades?
Yes, with design verification. BUK9620-100B offers lower RDS(on) (16.2 mΩ vs. BUZ11's ~40 mΩ), AEC-Q101 qualification, and superior thermal resistance (0.75 K/W vs. BUZ11's ~2.5 K/W in TO-220). However, its D2PAK footprint and mounting-base drain connection require PCB layout changes - direct drop-in replacement is not possible without mechanical redesign.
BUK9620-100B,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):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 63A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 18.5mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 2V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 53.4 nC @ 5 V
- Vgs (Max):
- ±15V
- Input Capacitance (Ciss) (Max) @ Vds:
- 5657 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 203W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
BUK9620-100B,118 FAQ
1.How can I place an order for BUK9620-100B,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK9620-100B,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 BUK9620-100B,118 reliable?
The price and inventory of BUK9620-100B,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9620-100B,118 is usually 5 days.
3.What payment methods are accepted for BUK9620-100B,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9620-100B,118 transactions.
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4.How is shipping managed for BUK9620-100B,118?
BUK9620-100B,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK9620-100B,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 BUK9620-100B,118?
For technical support, including BUK9620-100B,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9620-100B,118 requirements.
6.How does Aetrix verify that BUK9620-100B,118 is sourced from the original manufacturer or authorized distributors?
All BUK9620-100B,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 BUK9620-100B,118 meets industry standards.
7.What is the process for return or replacement of BUK9620-100B,118?
All BUK9620-100B,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9620-100B,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 BUK9620-100B,118 part is unused and in its original packaging.
Return procedure for BUK9620-100B,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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