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

Infineon Technologies BSP298 E6327

Name: BSP298 E6327
Brand: Infineon Technologies
SKU: BSP298 E6327
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BSP298 E6327

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: BSP298 E6327.pdf

Description:: MOSFET N-CH 400V 500MA SOT223-4

Quantity:: RFQ Add To RFQ list

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Inventory:5,209

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Product details

Overview

BSP298 E6327 from Infineon Technologies is an N-channel enhancement-mode SIPMOS® small-signal power MOSFET rated for 400 V drain-source voltage, 0.5 A continuous drain current, and 3 Ω R_DS(on) at V_GS = 10 V. It features avalanche energy rating (E_AS = 130 mJ), ±20 V gate-source voltage tolerance, and operates across –55 °C to +150 °C junction temperature. Used in low-power AC/DC flyback snubber circuits and relay driver stages.

For engineers reviewing the BSP298 E6327 datasheet, BSP298 E6327 pinout, BSP298 E6327 application, or BSP298 E6327 equivalent, key selection criteria include its 400 V V_DS, 2.1–4.0 V gate threshold range, 1.8 W P_tot at T_A = 25 °C, integrated body diode with 300 ns t_rr, and PG-SOT223 package thermal resistance (R_thJA ≤ 70 K/W).

Technical Context

This MOSFET employs a planar SIPMOS® process optimized for high-voltage switching with robust avalanche capability. Its gate threshold voltage (2.1–4.0 V) enables reliable turn-on with standard 3.3 V or 5 V logic-level drive while maintaining noise immunity under transient conditions.

Dynamic parameters-including 300 pF C_iss, 50–75 pF C_oss, and 10–15 ns t_d(on)-support efficient operation in 50–200 kHz flyback and DC-DC converter topologies where low gate charge and fast switching reduce conduction and switching losses.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	400 V - supports primary-side switching in universal-input offline SMPS up to 265 V_AC.
I_D (continuous)	0.5 A - suitable for sub-10 W auxiliary supplies and low-current load switches.
R_DS(on)	2.2–3 Ω @ V_GS = 10 V - determines conduction loss (≤ 0.75 W at full load) in linear or saturated operation.
E_AS	130 mJ - enables single-pulse inductive energy absorption without failure in relay coil or transformer leakage spike events.
V_GS(th)	2.1–4.0 V - ensures compatibility with microcontroller GPIOs and provides margin against false turn-on from noise.
t_r/t_f	25–40 ns / 20–30 ns - reduces switching transition time, lowering overlap loss in hard-switched topologies.
C_iss	300–400 pF - influences gate drive strength requirement and impacts EMI generation during turn-on.

Pinout & Package

Package: PG-SOT223 (4-pin, surface-mount, thermally enhanced with exposed drain pad). Pin 1 = Gate, Pin 2 = Drain, Pin 3 = Source, Pin 4 = Drain (dual-drain configuration for improved thermal and current handling).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Gate	Control terminal; requires ≤ ±20 V drive; 100 nA I_GSS ensures low static power consumption.
Pin 2	Drain	Main high-voltage current path; electrically connected to exposed pad for thermal dissipation.
Pin 3	Source	Reference node for gate drive; ties to ground or low-side return in common-source configuration.
Pin 4	Drain	Second drain connection-parallel path to Pin 2, reducing package inductance and improving thermal spreading.

Key Features

Feature	Design Value
Avalanche-rated operation	130 mJ single-pulse E_AS enables unclamped inductive switching without external snubbers in relay drivers.
Low gate threshold spread	2.1–4.0 V V_GS(th) allows stable turn-on with 3.3 V/5 V logic while rejecting supply ripple and noise.
Integrated body diode	300 ns t_rr, 2.5 µC Q_rr - supports freewheeling in low-frequency PWM applications without external diode.
Pb-free & AEC-Q101 qualified	RoHS-compliant plating and automotive-grade reliability validation for industrial control modules.

Applications

AC/DC Auxiliary Power Supply

Electromechanical Relay Driver

Use Scenario: Provides isolated 5 V/12 V bias supply in offline flyback converters for microcontrollers and sensors.

IC Role / Device Role / Timing Role: Primary-side switch operating at 65–100 kHz with self-supplied gate drive via auxiliary winding.

Use Value: 400 V V_DS headroom accommodates reflected output voltage plus leakage spikes; 130 mJ E_AS absorbs worst-case energy without clamping.

Use Scenario: Drives 12 V/24 V DC relays in PLC I/O modules and HVAC control panels.

IC Role / Device Role / Timing Role: Low-side switch controlling relay coil current; driven directly by MCU GPIO with RC snubber.

Use Value: Dual-drain SOT223 package lowers thermal resistance (R_thJA ≤ 70 K/W), enabling sustained 0.5 A coil current without heatsink.

LED String Current Limiter

Low-Power DC-DC Converter Switch

Use Scenario: Constant-current sink for 2–5 series white LEDs in signage and indicator lighting.

IC Role / Device Role / Timing Role: Linear regulator element in analog dimming path; dissipates <1 W at 350 mA.

Use Value: 2.2–3 Ω R_DS(on) provides predictable V_DS drop (0.7–1.1 V) for precise current setting with minimal thermal drift.

Use Scenario: High-side switch in non-isolated buck regulators powering sensor nodes and IoT peripherals.

IC Role / Device Role / Timing Role: Synchronous rectifier replacement in low-duty-cycle step-down stages (<100 kHz).

Use Value: Fast 25–40 ns rise/fall times minimize dead-time losses; 300 pF C_iss keeps gate drive current manageable with low-power drivers.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP1NK60ZFP	600 V V_DS, 1 A I_D, 11 Ω R_DS(on), TO-92 package	Higher voltage rating but higher on-resistance and larger footprint; lacks dual-drain thermal advantage	Preferred only when >450 V blocking is required and board space permits TO-92 mounting
IRF640NPBF	200 V V_DS, 18 A I_D, 0.18 Ω R_DS(on), TO-220 package	Lower voltage rating, much higher current capacity, and significantly lower R_DS(on); unsuitable for 400 V line-referenced designs	Only viable if system input is limited to ≤120 V_AC and thermal design accommodates TO-220 footprint

Compared with STP1NK60ZFP and IRF640NPBF, BSP298 E6327 uniquely balances 400 V capability, SOT223 thermal performance, and logic-level gate drive in a compact, automotive-qualified package-making it optimal for space-constrained, medium-voltage industrial controls.

Availability

BSP298 E6327 is available at Aetrix Electronics and suitable for AC/DC auxiliary power supplies, electromechanical relay drivers, LED current limiters, and low-power DC-DC converter switches requiring stable component supply and long-term industrial availability.

Supply support for BSP298 E6327 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.

The BSP298 belongs to Infineon's SIPMOS® small-signal MOSFET product line, engineered for high-voltage, low-current switching in space-constrained industrial and automotive auxiliary power applications.

FAQ

Is BSP298 E6327 suitable for 230 V_AC mains-connected circuits?

Yes. With a 400 V V_DS rating and 130 mJ avalanche energy, BSP298 E6327 safely handles peak line voltages up to 325 V and transient overvoltages typical in 230 V_AC systems. Its R_thJA ≤ 70 K/W and dual-drain SOT223 package enable reliable operation without heatsinking in <0.5 A continuous applications.

What is the maximum gate drive voltage for BSP298 E6327?

The absolute maximum gate-source voltage is ±20 V. Operation above ±15 V risks permanent gate oxide damage. For reliable switching, drive within 10–12 V for full enhancement while maintaining margin against transients. Gate drive must be referenced to source potential, not ground, in high-side configurations.

Does BSP298 E6327 have a built-in body diode, and what are its characteristics?

Yes. It integrates an intrinsic body diode with 0.95–1.2 V forward voltage at 1 A and 25 °C, 300 ns reverse recovery time, and 2.5 µC reverse recovery charge. This diode supports freewheeling in inductive loads but is not optimized for high-frequency synchronous rectification due to moderate Q_rr.

Can BSP298 E6327 replace BS170 in existing designs?

No. While both are N-channel MOSFETs in through-hole packages, BSP298 E6327 is SOT223 surface-mount, has 400 V V_DS vs. BS170's 60 V, and requires different PCB layout, thermal management, and gate drive design. Direct substitution would risk catastrophic failure due to voltage mismatch and package incompatibility.

BSP298 E6327 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):: 400 V

Current - Continuous Drain (Id) @ 25°C:: 500mA (Ta)

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

Rds On (Max) @ Id, Vgs:: 3Ohm @ 500mA, 10V

Vgs(th) (Max) @ Id:: 4V @ 1mA

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

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 400 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

BSP298 E6327 FAQ

1.How can I place an order for BSP298 E6327 through Aetrix?

Please submit a Request for Quotation (RFQ) for BSP298 E6327 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 BSP298 E6327 reliable?

The price and inventory of BSP298 E6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSP298 E6327 is usually 5 days.

3.What payment methods are accepted for BSP298 E6327?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSP298 E6327 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BSP298 E6327?

BSP298 E6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BSP298 E6327 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 BSP298 E6327?

For technical support, including BSP298 E6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSP298 E6327 requirements.

6.How does Aetrix verify that BSP298 E6327 is sourced from the original manufacturer or authorized distributors?

All BSP298 E6327 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 BSP298 E6327 meets industry standards.

7.What is the process for return or replacement of BSP298 E6327?

All BSP298 E6327 units undergo pre-shipment inspection (PSI). If there is an issue with BSP298 E6327, 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 BSP298 E6327 part is unused and in its original packaging.

Return procedure for BSP298 E6327:

1.Submit a request within 90 days.

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

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