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

Diodes Incorporated BS250FTC

Name: BS250FTC
Brand: Diodes Incorporated
SKU: BS250FTC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BS250FTC

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

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

Datasheet:: BS250FTC.pdf

Description:: MOSFET P-CH 45V 90MA SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:3,577

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Product details

Overview

BS250FTC from Diodes Incorporated is a P-channel enhancement-mode vertical DMOS FET in SOT-23 package, rated for V_DSS = –60 V, R_DS(on) = 4.5 Ω @ V_GS = –10 V, I_D = –200 mA, with 1.5 W power dissipation and AEC-Q101 qualification for automotive use.

For engineers reviewing the BS250FTC datasheet, BS250FTC pinout, BS250FTC application, or BS250FTC equivalent, key selection criteria include low-threshold gate drive compatibility (V_GS(th) = –1.0 to –2.5 V), pulsed switching performance (t_on/t_off < 20 ns), thermal resistance (R_θJA = 250 °C/W), and automotive-grade reliability under IATF 16949 manufacturing control.

Technical Context

This discrete MOSFET operates as a low-side load switch in 12 V automotive subsystems, using enhancement-mode P-channel topology requiring negative gate-source bias for conduction. Its vertical DMOS structure enables higher cell density and improved R_DS(on) vs. planar alternatives at this voltage class.

Designed for pulsed operation (duty cycle ≤2%, pulse width = 300 µs), it supports fast transient response in LED lighting control, sensor power gating, and ECU peripheral switching where low quiescent current and controlled turn-off timing are critical.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	–60 V: Maximum drain-to-source blocking voltage before avalanche breakdown; suitable for 24 V nominal systems with transients.
R_DS(on)	4.5 Ω @ V_GS = –10 V: On-resistance determines conduction loss in low-current switching paths (e.g., <200 mA loads).
I_D (continuous)	–200 mA: Continuous drain current rating at T_A = 25°C; derates above 25°C per R_θJA.
V_GS(th)	–1.0 to –2.5 V: Gate threshold range enables direct interface with 3.3 V or 5 V logic when driven via level-shifting or open-drain configuration.
P_D	1.5 W: Maximum power dissipation at T_A = 25°C; defines thermal design margin for PCB copper area and ambient temperature limits.
R_θJA	250 °C/W: Junction-to-ambient thermal resistance in standard SOT-23 footprint; requires careful layout for >100 mW sustained dissipation.

Pinout & Package

SOT-23 package: 3-pin surface-mount plastic case with gull-wing leads; pin 1 = Source, pin 2 = Gate, pin 3 = Drain (standard JEDEC MO-178AB marking orientation).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Source)	Reference node for gate drive and current return path	Connected to system ground or high-side rail depending on switch topology; defines V_GS reference point.
Pin 2 (Gate)	Control terminal for channel conduction	Requires negative voltage relative to source to turn on; sensitive to ESD (HBM 1.5 kV per datasheet).
Pin 3 (Drain)	Load connection terminal	Carries switched current to load; must be routed with adequate clearance for –60 V transients in automotive environments.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including temperature cycling, HTRB, and ESD testing per AEC specification.
IATF 16949 manufacturing	Produced in certified facilities with PPAP documentation support for Tier-1 OEM supply chains.
Low V_GS(th) range	Enables reliable turn-on with 3.3 V microcontroller GPIO without external level shifters in low-power gating roles.
Vertical DMOS architecture	Delivers lower R_DS(on) per die area than planar P-MOSFETs, supporting compact SOT-23 footprint at –60 V rating.

Applications

Automotive Interior Lighting Control

ECU Sensor Power Gating

Use Scenario: Switching 12 V LED strips in door modules and map lights with PWM dimming.

IC Role / Device Role / Timing Role: Low-side P-channel switch controlling current path to LED anode; gate driven by MCU PWM output through RC filter.

Use Value: Low R_DS(on) minimizes voltage drop and heat generation during 200 mA peak current, extending LED lifetime and reducing thermal pad area.

Use Scenario: Enabling/disabling analog sensors (e.g., pressure, temp) between vehicle ignition cycles to reduce standby current.

IC Role / Device Role / Timing Role: High-side power switch isolating sensor V_CC rail; gate pulled up to 12 V and driven low by MCU GPIO.

Use Value: V_GS(th) range ensures full turn-on with 5 V logic, eliminating need for dedicated gate driver IC in cost-sensitive ECU designs.

Body Control Module Load Management

Infotainment System Peripheral Switching

Use Scenario: Controlling solenoid drivers, window motor relays, or mirror heater elements in BCM sub-circuits.

IC Role / Device Role / Timing Role: P-channel load switch handling intermittent 100–200 mA loads with fast turn-off to prevent latch-up during battery voltage dips.

Use Value: Fast t_off (<20 ns) ensures clean deactivation during microsecond-scale brown-out events, improving system robustness.

Use Scenario: Power sequencing of USB PHY, CAN transceiver, or audio codec in head unit designs.

IC Role / Device Role / Timing Role: Controlled power enable switch placed between 5 V rail and peripheral IC V_CC, synchronized with MCU boot state.

Use Value: AEC-Q101 qualification and traceable sourcing meet OEM requirements for infotainment BOMs targeting 15-year vehicle service life.

Equivalent & Alternatives

The following parts are listed as comparable options for similar P-channel MOSFET switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ZXM61P02FTA	R_DS(on) = 2.8 Ω @ V_GS = –4.5 V; lower threshold enables 3.3 V direct drive	Better suited for ultra-low-voltage logic interfaces; not AEC-Q101 qualified	Select when gate drive voltage is limited to 3.3 V and automotive qualification is not required.
DMN2053LFG-7	R_DS(on) = 3.2 Ω @ V_GS = –4.5 V; SOT-23-3 but with enhanced thermal pad (exposed drain)	Higher power capability (P_D = 2.0 W); requires PCB thermal via design	Choose when >1.5 W dissipation or tighter thermal margins are needed in non-automotive industrial use.

Compared with ZXM61P02FTA and DMN2053LFG-7, BS250FTC uniquely combines AEC-Q101 qualification, IATF 16949 traceability, and –60 V rating in standard SOT-23 - making it the only option among the three qualified for production automotive ECUs without redesign or requalification.

Availability

BS250FTC is available at Aetrix Electronics and suitable for automotive interior lighting control, ECU sensor power gating, and body control module load management requiring stable component supply across multi-year vehicle production programs.

Supply support for BS250FTC 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.

The BS250FTC belongs to Diodes' automotive-qualified discrete MOSFET product line, engineered specifically for reliable low-power switching in 12 V/24 V vehicle subsystems under harsh environmental conditions.

FAQ

Is BS250FTC pin-compatible with BS250F?

Yes, BS250FTC is a tape-and-reel variant of the BS250F with identical electrical specifications, pinout, and SOT-23 package. The "TC" suffix denotes carrier tape packaging for automated assembly; no functional or mechanical differences exist between the two part numbers.

What is the maximum allowable gate-source voltage for BS250FTC?

The absolute maximum V_GS is ±20 V per the DS33013 datasheet. Exceeding this risks permanent gate oxide damage. For reliable operation, gate drive should be limited to –12 V maximum in automotive applications with transient suppression.

Does BS250FTC support PWM switching at frequencies above 100 kHz?

Yes - its typical t_on and t_off values are <20 ns each, enabling clean switching up to 500 kHz in low-duty-cycle applications. Layout parasitics and gate drive strength become limiting factors above 1 MHz.

Can BS250FTC be used in high-humidity under-hood environments?

Yes - it is qualified to AEC-Q101 and manufactured in IATF 16949-certified facilities, with moisture sensitivity level (MSL) 1 rating per J-STD-020, allowing unlimited floor life and suitability for sealed engine compartment modules.

BS250FTC Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 45 V

Current - Continuous Drain (Id) @ 25°C:: 90mA (Ta)

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

Rds On (Max) @ Id, Vgs:: 14Ohm @ 200mA, 10V

Vgs(th) (Max) @ Id:: 3.5V @ 1mA

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

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 25 pF @ 10 V

FET Feature:: -

Power Dissipation (Max):: 330mW (Ta)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

BS250FTC FAQ

1.How can I place an order for BS250FTC through Aetrix?

Please submit a Request for Quotation (RFQ) for BS250FTC 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 BS250FTC reliable?

The price and inventory of BS250FTC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BS250FTC is usually 5 days.

3.What payment methods are accepted for BS250FTC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BS250FTC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BS250FTC?

BS250FTC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BS250FTC 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 BS250FTC?

For technical support, including BS250FTC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BS250FTC requirements.

6.How does Aetrix verify that BS250FTC is sourced from the original manufacturer or authorized distributors?

All BS250FTC 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 BS250FTC meets industry standards.

7.What is the process for return or replacement of BS250FTC?

All BS250FTC units undergo pre-shipment inspection (PSI). If there is an issue with BS250FTC, 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 BS250FTC part is unused and in its original packaging.

Return procedure for BS250FTC:

1.Submit a request within 90 days.

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

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