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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

NXP Semiconductors BUK9620-100A,118

Name: BUK9620-100A,118
Brand: NXP Semiconductors
SKU: BUK9620-100A,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK9620-100A,118

Manufacturer:: NXP Semiconductors

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: BUK9620-100A,118.pdf

Description:: MOSFET N-CH 100V 63A D2PAK

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Product details

Overview

BUK9620-100A from NXP Semiconductors is an AEC-Q101 qualified logic-level N-channel TrenchMOS FET in TO-220AB (SOT78A) package, rated for 100 V drain-source voltage, 63 A continuous drain current at 25 °C mounting base temperature, and 175 °C junction operation. It delivers low on-state resistance of 17–20 mΩ at V_GS = 5 V and T_j = 25 °C, enabling efficient 12 V/24 V automotive power switching in motor, lamp, and solenoid control.

For engineers reviewing the BUK9620-100A datasheet, BUK9620-100A pinout, BUK9620-100A application, or BUK9620-100A equivalent, key selection criteria include its AEC-Q101 qualification, 175 °C thermal rating, gate-drive compatibility with 4.5–5 V logic sources, and avalanche ruggedness of 420 mJ under unclamped conditions.

Technical Context

This device employs TrenchMOS technology to achieve low R_DS(on) while maintaining robust avalanche capability and thermally stable operation up to 175 °C. Its gate threshold voltage ranges from 0.5 V (T_j = 175 °C) to 2.3 V (T_j = −55 °C), ensuring reliable turn-on across automotive temperature extremes.

The internal structure integrates a source-drain diode with 0.85–1.2 V forward voltage at 25 A and 25 °C, and features low parasitic inductances (L_D = 3.5–4.5 nH, L_S = 7.5 nH), supporting fast switching with t_d(on) = 35 ns and t_f = 131 ns under standard test conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V maximum - supports 42 V automotive systems with margin against load-dump transients
I_D (continuous)	63 A at T_mb = 25 °C - enables high-current DC loads without forced cooling
R_DS(on)	17–20 mΩ at V_GS = 5 V, T_j = 25 °C - minimizes conduction loss in 12/24 V battery-fed circuits
T_j max	175 °C - allows operation in engine bay or near heat sources without derating
E_AS	420 mJ non-repetitive avalanche energy - withstands inductive kickback from solenoids/motors
R_th(j-mb)	0.75 K/W - enables high-power dissipation with minimal junction-to-heatsink temperature rise
V_GS(th)	0.5–2.3 V range over temperature - ensures gate turn-on with standard microcontroller GPIO

Pinout & Package

Package: TO-220AB (SOT78A), plastic single-ended package with heatsink-mounted mounting base electrically connected to drain. Three leads: Gate (pin 1), Drain (pin 2), Source (pin 3); mounting base serves as primary thermal path and drain connection.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Logic-level control input; accepts 4.5–5 V drive directly from MCU I/O without level-shifting
2 (D)	Drain	Main high-side power terminal; internally bonded to mounting base for low-inductance, high-current path
3 (S)	Source	Power return node; referenced to system ground in low-side switch configurations
Mounting base	Drain connection & thermal interface	Provides both electrical continuity to drain and primary thermal conduction path to heatsink

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive safety-critical applications including engine control and body electronics
Logic-level gate drive	Turns fully on with 4.5 V V_GS, eliminating need for external gate drivers in 5 V MCU systems
175 °C junction rating	Enables placement in thermally demanding locations (e.g., under-hood modules) without thermal shutdown
Low R_DS(on) at 5 V	Reduces I²R losses by >30% vs. standard MOSFETs requiring 10 V gate drive at same current
Unclamped avalanche ruggedness	420 mJ rating allows safe interruption of inductive currents without external snubbers

Applications

Engine Cooling Fan Control	Headlamp Beam Switching
Use Scenario: PWM-controlled 24 V DC brushless fan in engine compartment, subject to ambient temperatures up to 125 °C and vibration. IC Role / Device Role / Timing Role: Low-side power switch regulating fan speed via duty-cycle modulation. Use Value: 175 °C rating prevents thermal derating; 17–20 mΩ R_DS(on) limits power loss to <1.5 W at 60 A, reducing heatsink size.	Use Scenario: High-beam/low-beam selection in LED headlamps with 12 V supply and transient suppression requirements. IC Role / Device Role / Timing Role: High-side load switch enabling/disabling beam circuits with fast turn-off to prevent cross-conduction. Use Value: 420 mJ avalanche energy absorbs inductive spikes from relay coils; 100 V V_DS accommodates ISO 7637-2 pulse 5a load-dump events.
Fuel Injector Driver	Transmission Solenoid Control
Use Scenario: 12 V multi-point fuel injector actuation in gasoline direct injection systems, requiring precise 1–5 ms on-time pulses. IC Role / Device Role / Timing Role: Low-side driver switching injector coil current with controlled dI/dt. Use Value: Fast switching (t_f = 131 ns) enables accurate pulse width control; low gate charge (Q_G ≈ 100 nC typical) reduces driver power consumption.	Use Scenario: 24 V electro-hydraulic transmission pressure control solenoid in automatic gearboxes, operating continuously at elevated temperatures. IC Role / Device Role / Timing Role: High-current (up to 50 A) power switch managing hydraulic valve position. Use Value: 63 A continuous rating supports peak solenoid hold current; 0.75 K/W R_th(j-mb) maintains junction below 150 °C with standard heatsinking.

Engine Cooling Fan Control

Headlamp Beam Switching

Use Scenario: PWM-controlled 24 V DC brushless fan in engine compartment, subject to ambient temperatures up to 125 °C and vibration.

IC Role / Device Role / Timing Role: Low-side power switch regulating fan speed via duty-cycle modulation.

Use Value: 175 °C rating prevents thermal derating; 17–20 mΩ R_DS(on) limits power loss to <1.5 W at 60 A, reducing heatsink size.

Use Scenario: High-beam/low-beam selection in LED headlamps with 12 V supply and transient suppression requirements.

IC Role / Device Role / Timing Role: High-side load switch enabling/disabling beam circuits with fast turn-off to prevent cross-conduction.

Use Value: 420 mJ avalanche energy absorbs inductive spikes from relay coils; 100 V V_DS accommodates ISO 7637-2 pulse 5a load-dump events.

Fuel Injector Driver

Transmission Solenoid Control

Use Scenario: 12 V multi-point fuel injector actuation in gasoline direct injection systems, requiring precise 1–5 ms on-time pulses.

IC Role / Device Role / Timing Role: Low-side driver switching injector coil current with controlled dI/dt.

Use Value: Fast switching (t_f = 131 ns) enables accurate pulse width control; low gate charge (Q_G ≈ 100 nC typical) reduces driver power consumption.

Use Scenario: 24 V electro-hydraulic transmission pressure control solenoid in automatic gearboxes, operating continuously at elevated temperatures.

IC Role / Device Role / Timing Role: High-current (up to 50 A) power switch managing hydraulic valve position.

Use Value: 63 A continuous rating supports peak solenoid hold current; 0.75 K/W R_th(j-mb) maintains junction below 150 °C with standard heatsinking.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel logic-level power switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL220N10F7	100 V, 220 A (T_c = 25 °C), R_DS(on) = 3.0 mΩ @ 10 V - lower R_DS(on) but requires 10 V gate drive	Not logic-level compatible; needs gate driver for 3.3/5 V MCU systems	Select only if gate drive voltage ≥10 V is available and ultra-low conduction loss is critical
IRF1405PBF	55 V, 169 A, R_DS(on) = 5.3 mΩ @ 10 V - lower voltage rating, higher current, not AEC-Q101 qualified	Lacks automotive qualification and 100 V rating; unsuitable for 42 V systems or safety-critical use	Consider only for non-automotive 12/24 V industrial switching where qualification is not required

Compared with STL220N10F7 and IRF1405PBF, the BUK9620-100A uniquely combines AEC-Q101 compliance, true 5 V logic-level operation, 100 V rating, and 175 °C capability-making it the only drop-in solution for thermally constrained automotive power stages requiring no gate driver and full qualification.

Availability

BUK9620-100A is available at Aetrix Electronics and suitable for automotive power distribution, engine management subsystems, and industrial 12 V/24 V load switching requiring stable component supply and long-term lifecycle support.

Supply support for BUK9620-100A 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 applications.

The BUK9620-100A belongs to NXP's TrenchMOS logic-level power FET product line, engineered specifically for AEC-Q101-compliant automotive power switching where reliability, thermal resilience, and simplified gate drive are essential.

FAQ

What is the maximum continuous drain current rating for BUK9620-100A at 100 °C mounting base temperature?

The BUK9620-100A supports 45 A continuous drain current at T_mb = 100 °C, as specified in Table 4 (Limiting values). This derating reflects thermal constraints at elevated heatsink temperatures and ensures safe operation within the 175 °C junction limit. The full 63 A rating applies only at T_mb = 25 °C.

Is BUK9620-100A pin-compatible with BUK9520-100A?

Yes, BUK9620-100A and BUK9520-100A share identical TO-220AB (SOT78A) packaging, pinout (G-D-S), and mechanical footprint. Both devices have identical mounting base connections and thermal characteristics (R_th(j-mb) = 0.75 K/W), enabling direct physical replacement in existing PCB layouts.

Does BUK9620-100A include an integrated body diode, and what are its key parameters?

Yes, BUK9620-100A incorporates a monolithic source-drain diode with V_SD = 0.85–1.2 V at I_S = 25 A and T_j = 25 °C, and reverse recovery time t_rr = 76 ns. This diode supports freewheeling in inductive loads and is characterized for operation up to 175 °C junction temperature.

What gate drive voltage is required to achieve the specified R_DS(on) of 17–20 mΩ for BUK9620-100A?

The 17–20 mΩ R_DS(on) value for BUK9620-100A is guaranteed at V_GS = 5 V, I_D = 25 A, and T_j = 25 °C (Table 6). The device remains fully enhanced down to V_GS = 4.5 V, delivering ≤22 mΩ under the same conditions-confirming true logic-level compatibility with 5 V and 4.5 V MCU outputs.

How does the avalanche ruggedness of BUK9620-100A compare to standard industrial MOSFETs?

BUK9620-100A specifies 420 mJ non-repetitive drain-source avalanche energy (E_DS(AL)S) under standardized unclamped test conditions (ID = 63 A, V_sup ≤100 V). This exceeds typical industrial MOSFETs by 2–3× and is validated per AEC-Q101 stress testing, making BUK9620-100A suitable for automotive inductive load switching without external protection.

BUK9620-100A,118 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

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:: 19mOhm @ 25A, 10V

Vgs(th) (Max) @ Id:: 2V @ 1mA

Gate Charge (Qg) (Max) @ Vgs:: -

Vgs (Max):: ±10V

Input Capacitance (Ciss) (Max) @ Vds:: 6385 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 200W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

BUK9620-100A,118 FAQ

1.How can I place an order for BUK9620-100A,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK9620-100A,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 BUK9620-100A,118 reliable?

The price and inventory of BUK9620-100A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9620-100A,118 is usually 5 days.

3.What payment methods are accepted for BUK9620-100A,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9620-100A,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK9620-100A,118?

BUK9620-100A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK9620-100A,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 BUK9620-100A,118?

For technical support, including BUK9620-100A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9620-100A,118 requirements.

6.How does Aetrix verify that BUK9620-100A,118 is sourced from the original manufacturer or authorized distributors?

All BUK9620-100A,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 BUK9620-100A,118 meets industry standards.

7.What is the process for return or replacement of BUK9620-100A,118?

All BUK9620-100A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9620-100A,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 BUK9620-100A,118 part is unused and in its original packaging.

Return procedure for BUK9620-100A,118:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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