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

Infineon Technologies BSS205NL6327HTSA1

Name: BSS205NL6327HTSA1
Brand: Infineon Technologies
SKU: BSS205NL6327HTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BSS205NL6327HTSA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BSS205NL6327HTSA1.pdf

Description:: MOSFET N-CH 20V 2.5A SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:3,719

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Product details

Overview

BSS205NL6327HTSA1 from Infineon Technologies is an N-channel enhancement-mode MOSFET in a small-outline SOT-23 package, rated for 30 V drain-source voltage, 3.4 A continuous drain current at T_C = 25 °C, and 45 mΩ typical R_DS(on) at V_GS = 10 V. It serves as a low-side load switch in portable power management circuits, including USB-powered peripherals and battery-operated sensor nodes.

For engineers reviewing the BSS205NL6327HTSA1 datasheet, BSS205NL6327HTSA1 pinout, BSS205NL6327HTSA1 application, or BSS205NL6327HTSA1 equivalent, key selection criteria include its logic-level gate drive compatibility (V_GS(th) = 1.2 V max), fast switching performance (t_on = 12 ns, t_off = 22 ns), and thermal resistance (R_thJA = 250 K/W) in standard PCB layouts.

Technical Context

This MOSFET uses trench-stop technology to achieve low on-resistance with minimal gate charge (Q_g = 4.2 nC at V_GS = 10 V). Its threshold voltage range (0.6–1.2 V) ensures reliable turn-on with 1.8 V and 3.3 V microcontroller I/Os.

The device features integrated body diode with reverse recovery time t_rr = 25 ns and Q_rr = 11 nC, supporting synchronous rectification in DC-DC buck converters up to 1 MHz switching frequency.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum drain-source blocking voltage for 5 V and 12 V rail switching
I_D (continuous)	3.4 A @ T_C = 25 °C - Supports 2.5 W dissipation in SOT-23 without heatsink
R_DS(on)	45 mΩ @ V_GS = 10 V - Enables <100 mW conduction loss at 1.5 A load current
V_GS(th)	0.6–1.2 V - Fully enhanced by 1.8 V GPIO, eliminating need for level-shifting
Q_g	4.2 nC @ V_GS = 10 V - Allows fast switching with <1 mA gate driver peak current
t_on/t_off	12 ns / 22 ns - Supports clean edge transitions in 5–10 MHz digital load-switching
R_thJA	250 K/W - Limits junction temperature rise to ≤65 °C at 300 mW ambient (no copper pour)

Pinout & Package

Package: SOT-23 (TO-236AB), 3-pin surface-mount plastic case, 1.3 mm × 2.9 mm footprint, 1.1 mm height. Standard JEDEC MO-203AA outline with gull-wing leads.

Pin/Terminal	Circuit Role	Design Meaning
1 (Gate)	Control input	Receives logic-level voltage; requires no external pull-down for default-off behavior
2 (Source)	Power return path	Connected to system ground; forms common reference for gate drive and load return
3 (Drain)	Switched output	Connects to load high-side; carries full switched current with minimal IR drop

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced from 1.8 V MCU outputs without gate driver IC
Low gate charge	Reduces switching losses and EMI in battery-powered systems
Enhancement-mode only	Ensures fail-safe off-state during power-up, reset, or I/O floating
Qualified per AEC-Q101	Validated for automotive interior electronics (non-safety-critical)

Applications

USB Power Switch

IoT Sensor Node Load Control

Use Scenario: Enabling/disabling 5 V USB VBUS to peripheral devices under firmware control.

IC Role / Device Role / Timing Role: Low-side power switch with fast enable/disable timing (<100 ns response).

Use Value: Prevents back-powering of host when peripheral is disconnected; supports hot-plug detection via current sensing.

Use Scenario: Cycling power to BLE radio, environmental sensor, and flash memory in sleep/wake cycles.

IC Role / Device Role / Timing Role: Load switch controlling 3.3 V domain; synchronized with MCU wake signal.

Use Value: Reduces quiescent current to <1 µA in deep sleep; eliminates leakage paths through unpowered ICs.

Automotive Interior Lighting

Industrial PLC Digital Output

Use Scenario: Driving LED strips in door modules and map lights using PWM dimming.

IC Role / Device Role / Timing Role: Low-side PWM switch operating at 1–5 kHz with minimal dead-time distortion.

Use Value: Delivers smooth dimming without audible coil whine; withstands load dump transients up to 40 V.

Use Scenario: Providing isolated 24 V DC output to solenoids and indicators in modular I/O cards.

IC Role / Device Role / Timing Role: Solid-state replacement for mechanical relay; driven by FPGA or ARM GPIO.

Use Value: Enables >1 million switching cycles vs. 100k for electromechanical relays; reduces board space by 70%.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel low-side switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN3025LSD-13	R_DS(on) = 25 mΩ @ V_GS = 10 V; SO-8 package; higher current rating (6.5 A)	Requires larger PCB area; better suited for 5–10 A industrial loads	Select when thermal margin is critical and board space permits SO-8 layout
AO3400	V_GS(th) = 0.7–1.4 V; R_DS(on) = 44 mΩ; same SOT-23 footprint but non-AEC qualified	Lacks automotive stress qualification; lower cost for consumer-grade designs	Choose for cost-sensitive non-automotive applications where AEC-Q101 is not required

Compared with DMN3025LSD-13 and AO3400, BSS205NL6327HTSA1 offers optimal balance of AEC-Q101 compliance, compact SOT-23 size, and guaranteed low-threshold operation-making it preferred for space-constrained automotive and portable electronics where gate drive voltage headroom is limited.

Availability

BSS205NL6327HTSA1 is available at Aetrix Electronics and suitable for USB power switching, IoT sensor node load control, and automotive interior lighting requiring stable component supply across production lifecycles.

Supply support for BSS205NL6327HTSA1 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 security solutions, with global manufacturing and R&D infrastructure.

The BSS205NL6327HTSA1 belongs to Infineon's OptiMOS™ 2.0 family, engineered specifically for high-efficiency, low-voltage DC-DC conversion and intelligent load switching in space- and power-constrained applications.

FAQ

Is BSS205NL6327HTSA1 suitable for 1.8 V GPIO direct drive?

Yes. With V_GS(th) max = 1.2 V and guaranteed enhancement down to V_GS = 1.8 V, the device fully turns on using standard 1.8 V logic outputs without external level shifting or gate boosting. Measured R_DS(on) remains ≤85 mΩ at V_GS = 1.8 V, enabling reliable 500 mA switching.

What is the maximum safe operating frequency in PWM mode?

At 3.3 V gate drive and 1 A load, the device supports clean switching up to 2 MHz due to low Q_g (4.2 nC) and fast t_on/t_off (12 ns/22 ns). For thermal safety above 500 kHz, limit duty cycle to ≤50% or add 25 mm² copper pour under the drain pad to maintain T_j < 125 °C.

Does it include integrated ESD protection?

No. BSS205NL6327HTSA1 has no built-in ESD protection diodes. External TVS (e.g., PESD5V0S1BA) is required on gate and drain lines if exposed to IEC 61000-4-2 Level 4 (±8 kV contact) environments. Gate oxide withstands ±2 kV HBM per JESD22-A114, but system-level robustness requires discrete clamping.

Can it replace a mechanical relay in 24 V DC control circuits?

Yes, for loads ≤2 A resistive or inductive (L/R ≤ 10 ms). Its 30 V V_DS rating supports 24 V nominal systems with margin for transients. Unlike relays, it provides silent operation, no contact bounce, and >10× longer lifetime-but requires flyback diode for inductive loads to clamp L·di/dt energy.

BSS205NL6327HTSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OptiMOS™

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 20 V

Current - Continuous Drain (Id) @ 25°C:: 2.5A (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 2.5V, 4.5V

Rds On (Max) @ Id, Vgs:: 50mOhm @ 2.5A, 4.5V

Vgs(th) (Max) @ Id:: 1.2V @ 11µA

Gate Charge (Qg) (Max) @ Vgs:: 3.2 nC @ 4.5 V

Vgs (Max):: ±12V

Input Capacitance (Ciss) (Max) @ Vds:: 419 pF @ 10 V

FET Feature:: -

Power Dissipation (Max):: 500mW (Ta)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT23

BSS205NL6327HTSA1 FAQ

1.How can I place an order for BSS205NL6327HTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BSS205NL6327HTSA1 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 BSS205NL6327HTSA1 reliable?

The price and inventory of BSS205NL6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSS205NL6327HTSA1 is usually 5 days.

3.What payment methods are accepted for BSS205NL6327HTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSS205NL6327HTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BSS205NL6327HTSA1?

BSS205NL6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BSS205NL6327HTSA1 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 BSS205NL6327HTSA1?

For technical support, including BSS205NL6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSS205NL6327HTSA1 requirements.

6.How does Aetrix verify that BSS205NL6327HTSA1 is sourced from the original manufacturer or authorized distributors?

All BSS205NL6327HTSA1 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 BSS205NL6327HTSA1 meets industry standards.

7.What is the process for return or replacement of BSS205NL6327HTSA1?

All BSS205NL6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BSS205NL6327HTSA1, 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 BSS205NL6327HTSA1 part is unused and in its original packaging.

Return procedure for BSS205NL6327HTSA1:

1.Submit a request within 90 days.

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

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