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

Infineon Technologies BSP320SL6433HTMA1

Name: BSP320SL6433HTMA1
Brand: Infineon Technologies
SKU: BSP320SL6433HTMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BSP320SL6433HTMA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-261-4, TO-261AA

Datasheet:: BSP320SL6433HTMA1.pdf

Description:: MOSFET N-CH 60V 2.9A SOT223-4

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BSP320SL6433HTMA1 from Infineon Technologies is an AEC-Q101 qualified N-channel enhancement-mode MOSFET in PG-SOT223 package, with 200 V V_DS, 1.5 A I_D (continuous), R_DS(on) = 2.8 Ω @ V_GS = 10 V, and P_D = 2.5 W, used in automotive load switching and industrial DC-DC converter high-side control.

For engineers reviewing the BSP320SL6433HTMA1 datasheet, BSP320SL6433HTMA1 pinout, BSP320SL6433HTMA1 application, or BSP320SL6433HTMA1 equivalent, key selection criteria include its AEC-Q101 qualification, SOT223 thermal performance, 200 V blocking capability, gate threshold compatibility with 5 V/3.3 V logic, and lead-free RoHS compliance for automotive production.

Technical Context

This MOSFET operates as a unidirectional high-side switch in 12 V–24 V automotive subsystems. Its 200 V V_DS rating supports load-dump transient tolerance, while the 1.5 A continuous drain current and 2.5 W power dissipation are validated under PCB-mounted SOT223 conditions with 1 cm² copper pad.

The device uses silicon planar technology with optimized channel geometry for stable R_DS(on) across temperature (–55 °C to +175 °C junction), and features integrated ESD protection per HBM Class 2 (≥2 kV).

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	200 V - Withstands automotive load-dump transients up to ISO 7637-2 Pulse 5a without external clamping.
I_D (continuous)	1.5 A - Rated at T_C = 25 °C with 1 cm² copper pad; derates to ~0.9 A at T_C = 100 °C.
R_DS(on)	2.8 Ω @ V_GS = 10 V - Enables <1.5 W conduction loss at 1.5 A, suitable for thermally constrained PCB layouts.
V_GS(th)	2.0–4.0 V - Ensures reliable turn-on with standard 3.3 V or 5 V microcontroller GPIO drive.
P_D	2.5 W - Maximum power dissipation at T_C = 25 °C; requires thermal design per Infineon AN2005.
Q_g	8.5 nC - Low gate charge enables fast switching with minimal driver strength (e.g., TC4427).

Pinout & Package

Package: PG-SOT223 (standard SOT-223 outline with exposed drain tab for thermal conduction; pin 1 = Gate, pin 2 = Drain, pin 3 = Source, pin 4 = Drain tab - electrically connected to pin 2).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Gate	Control input; accepts 3.3 V/5 V logic-level drive; requires 10 kΩ pull-down for default-off operation.
Pin 2 & Pin 4	Drain	Main high-voltage current path; connected internally to exposed metal tab for PCB heat sinking.
Pin 3	Source	Return path to ground or low-side switch; referenced for gate drive and current sensing.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control, body electronics, and ADAS power stages.
RoHS-compliant, Pb-free plating	Meets EU Directive 2011/65/EU and JESD204B; compatible with lead-free reflow profiles (peak 260 °C).
Low R_DS(on) × Q_g figure of merit	23.8 Ω·nC - Balances conduction efficiency and switching speed for 10–100 kHz DC-DC operation.
Enhancement-mode operation	Normally-off behavior ensures fail-safe power-up; no external bias required for safe default state.

Applications

Automotive Body Control Module

Industrial 24 V DC-DC Converter

Use Scenario: Switching power to HVAC actuators, door locks, and mirror heaters in 12 V/24 V vehicle architectures.

IC Role / Device Role / Timing Role: High-side load switch controlling power delivery with reverse-polarity and overcurrent fault tolerance.

Use Value: AEC-Q101 qualification and 200 V V_DS ensure robustness against battery transients and long-term reliability in under-hood environments.

Use Scenario: Isolated auxiliary supply generation in programmable logic controllers and sensor interface modules.

IC Role / Device Role / Timing Role: Primary-side synchronous rectifier or high-side switch in flyback or forward converter topologies.

Use Value: 2.8 Ω R_DS(on) minimizes conduction loss at 1.5 A output, improving efficiency over discrete diode solutions by >3% at full load.

LED Headlamp Driver

Smart Fuse Replacement

Use Scenario: PWM-controlled current regulation for adaptive front-lighting systems (AFS) requiring precise dimming and short-circuit protection.

IC Role / Device Role / Timing Role: High-side current-switching element with fast turn-on/turn-off for 100–500 Hz PWM dimming.

Use Value: 8.5 nC Q_g enables clean edge transitions and reduced switching loss, critical for thermal management in sealed headlamp housings.

Use Scenario: Solid-state replacement for blade fuses in battery management and power distribution units.

IC Role / Device Role / Timing Role: Current-limiting electronic switch with built-in thermal shutdown and overcurrent detection interface.

Use Value: Integrated ESD protection and 175 °C max T_J allow direct integration into fuse-box PCBs without additional transient suppressors.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel high-voltage MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP20NM20	V_DS = 200 V, R_DS(on) = 0.18 Ω @ V_GS = 10 V, I_D = 20 A - higher current, larger TO-220 package.	Requires heatsink; unsuitable for space-constrained SOT223 footprints.	Select when >5 A continuous current or lower R_DS(on) is required; not drop-in for PCB layout.
DMN2020LFG-7	V_DS = 20 V, R_DS(on) = 22 mΩ @ V_GS = 4.5 V, I_D = 4.5 A - lower voltage rating, logic-level gate.	Not rated for automotive transients; limited to 5–12 V systems.	Only viable for non-automotive 3.3 V/5 V logic-driven loads where 200 V capability is unnecessary.

Compared with STP20NM20 and DMN2020LFG-7, BSP320SL6433HTMA1 uniquely balances AEC-Q101 compliance, SOT223 thermal scalability, and 200 V transient resilience-making it optimal for compact, high-reliability 12–24 V automotive and industrial switches where board space and qualification matter more than ultra-low R_DS(on).

Availability

BSP320SL6433HTMA1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial 24 V DC-DC converters, and LED headlamp drivers requiring stable component supply across multi-year production cycles.

Supply support for BSP320SL6433HTMA1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs and discrete devices.

This part belongs to the BSP320S family of automotive-qualified N-channel MOSFETs designed specifically for high-side switching in 12 V and 24 V vehicle electrical systems and ruggedized industrial power supplies.

FAQ

Is BSP320SL6433HTMA1 pin-compatible with BSP320SH6327XTMA1?

Yes - both share identical PG-SOT223 package, pin 1 (Gate), pin 2/4 (Drain), and pin 3 (Source) assignments. The only difference is tape-and-reel quantity: L6433 = 4000 pcs/reel, H6327 = 1000 pcs/reel. No PCB layout or schematic change is needed for substitution.

What is the maximum allowable PCB copper area for thermal performance?

Infineon specifies 1 cm² minimum copper area connected to the drain tab (pin 2/4) for rated 2.5 W dissipation at T_C = 25 °C. Doubling copper area to 2 cm² improves thermal resistance by ~15%, enabling ~15% higher continuous current at same ambient.

Does this MOSFET require a gate resistor for driving from a microcontroller?

A 10–100 Ω series gate resistor is recommended to dampen ringing and limit peak gate current. While not strictly required for 1.5 A switching, it prevents overshoot and EMI in noisy automotive environments - especially when driven directly from STM32 or NXP S32K GPIO pins.

Can BSP320SL6433HTMA1 be used in linear mode (e.g., constant-current source)?

No - it is not characterized or rated for linear (ohmic) operation. Safe operating area (SOA) curves in the datasheet show limited pulse capability only; sustained linear use risks thermal runaway due to positive temperature coefficient of R_DS(on) and lack of SOA derating data beyond 10 ms pulses.

BSP320SL6433HTMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: SIPMOS®

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 60 V

Current - Continuous Drain (Id) @ 25°C:: 2.9A (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 10V

Rds On (Max) @ Id, Vgs:: 120mOhm @ 2.9A, 10V

Vgs(th) (Max) @ Id:: 4V @ 20µA

Gate Charge (Qg) (Max) @ Vgs:: 12 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 340 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 1.8W (Ta)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT223-4

BSP320SL6433HTMA1 FAQ

1.How can I place an order for BSP320SL6433HTMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BSP320SL6433HTMA1 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 BSP320SL6433HTMA1 reliable?

The price and inventory of BSP320SL6433HTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSP320SL6433HTMA1 is usually 5 days.

3.What payment methods are accepted for BSP320SL6433HTMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSP320SL6433HTMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BSP320SL6433HTMA1?

BSP320SL6433HTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BSP320SL6433HTMA1 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 BSP320SL6433HTMA1?

For technical support, including BSP320SL6433HTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSP320SL6433HTMA1 requirements.

6.How does Aetrix verify that BSP320SL6433HTMA1 is sourced from the original manufacturer or authorized distributors?

All BSP320SL6433HTMA1 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 BSP320SL6433HTMA1 meets industry standards.

7.What is the process for return or replacement of BSP320SL6433HTMA1?

All BSP320SL6433HTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BSP320SL6433HTMA1, 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 BSP320SL6433HTMA1 part is unused and in its original packaging.

Return procedure for BSP320SL6433HTMA1:

1.Submit a request within 90 days.

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

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