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

Vishay Siliconix SQ3456BEV-T1_GE3

Name: SQ3456BEV-T1_GE3
Brand: Vishay Siliconix
SKU: SQ3456BEV-T1_GE3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SQ3456BEV-T1_GE3

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

Package:: SOT-23-6 Thin, TSOT-23-6

Datasheet:: SQ3456BEV-T1_GE3.pdf

Description:: MOSFET N-CH 30V 7.8A 6TSOP

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Product details

Overview

SQ3456BEV-T1_GE3 from Vishay Siliconix is an automotive-grade N-channel TrenchFET® power MOSFET with 30 V V_DS, 7.8 A continuous drain current at 25 °C, and R_DS(on) of 0.035 Ω at V_GS = 10 V. It operates up to +175 °C junction temperature and is qualified to AEC-Q101 for under-hood motor control and load switching in 12 V automotive systems.

For engineers reviewing the SQ3456BEV-T1_GE3 datasheet, SQ3456BEV-T1_GE3 pinout, SQ3456BEV-T1_GE3 application, or SQ3456BEV-T1_GE3 equivalent, this device is selected for high-reliability 30 V DC load switching where low on-resistance, robust avalanche capability (E_AS = 5 mJ), and thermal stability across -55 °C to +175 °C are critical.

Technical Context

This MOSFET uses trench-gate silicon technology optimized for low gate charge (Q_g = 6–10 nC) and fast switching (t_d(on) = 6–9 ns, t_f = 8–12 ns), enabling efficient PWM control in automotive body electronics. Its TSOP-6 package provides enhanced thermal performance with R_thJF = 38 °C/W to the drain foot.

The device integrates a robust intrinsic body diode (V_SD = 0.8–1.1 V at I_F = 3 A) and is 100 % tested for gate resistance (R_g = 3.0–11 Ω) and unclamped inductive switching (UIS), supporting reliable operation in inductive load circuits without external snubbers.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum blocking voltage for 12 V automotive battery rail with surge margin
R_DS(on) @ V_GS = 10 V	0.035 Ω - Enables ≤0.2 W conduction loss at 7.8 A, reducing heatsink requirements
R_DS(on) @ V_GS = 4.5 V	0.052 Ω - Ensures full enhancement with standard 5 V logic-level gate drive
I_D (continuous, T_C = 25 °C)	7.8 A - Supports medium-power loads such as fuel pumps, radiator fans, and solenoids
E_AS	5 mJ - Withstands single-pulse inductive energy without failure in relay or motor drive turn-off
T_J max	+175 °C - Certified for under-hood environments including engine control modules and transmission ECUs
Q_g	6–10 nC - Low gate charge enables fast, low-loss switching with standard gate drivers

Pinout & Package

TSOP-6 surface-mount package (JEDEC MO-193C), 3.05 mm × 2.85 mm footprint, with exposed drain pad for thermal conduction to PCB copper.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 5, 6	Drain (D)	High-current output node; pins 1/2/5/6 and exposed pad form parallel drain connection for low R_DS(on) and thermal path
3	Gate (G)	Control input; requires < ±20 V rating and low-impedance drive due to Q_g = 6–10 nC
4	Source (S)	Power return reference; tied to system ground or low-side switch common point

Key Features

Feature	Design Value
AEC-Q101 Qualified	Validated for automotive use per stress test requirements including HTOL, TC, HTRB, and UHAST
100 % R_g and UIS Tested	Each unit screened for gate resistance consistency and single-pulse avalanche ruggedness
TrenchFET® Architecture	Delivers 21 S transconductance (g_fs) and low C_iss = 295–370 pF for stable high-frequency switching
R_thJF = 38 °C/W	Direct thermal path from junction to drain foot enables >1.3 W power dissipation at 125 °C case temperature
Lead (Pb)-free & Halogen-free	Complies with RoHS Directive 2011/65/EU and JEDEC JS709E material definitions

Applications

Engine Cooling Fan Control	Automotive HVAC Blower Motor
Use Scenario: PWM-controlled 12 V DC brush motor driving engine cooling fan in thermal management system. IC Role / Device Role / Timing Role: Low-side switching MOSFET providing precise duty-cycle-regulated current to motor windings. Use Value: R_DS(on) = 0.035 Ω minimizes I²R losses at 7.8 A peak, while E_AS = 5 mJ absorbs flyback energy during PWM turn-off without external clamping.	Use Scenario: Speed-controlled blower motor in passenger cabin HVAC system with variable airflow demand. IC Role / Device Role / Timing Role: High-efficiency N-channel switch in low-side configuration, driven by MCU PWM output. Use Value: Logic-level compatibility (R_DS(on) = 0.052 Ω @ 4.5 V) ensures full enhancement from 5 V microcontroller outputs, eliminating level-shifting circuitry.
Fuel Pump Driver	Transmission Solenoid Switch
Use Scenario: Constant-current or PWM-driven 12 V fuel pump in gasoline direct injection (GDI) systems. IC Role / Device Role / Timing Role: Primary power switch regulating pump voltage and current under ECU command. Use Value: +175 °C rated junction temperature supports mounting near hot engine blocks; AEC-Q101 qualification ensures long-term reliability in safety-critical fuel delivery.	Use Scenario: On/off control of hydraulic pressure solenoids in automatic transmission valve bodies. IC Role / Device Role / Timing Role: Robust load switch handling repetitive inductive turn-off transients in gear-shifting cycles. Use Value: 100 % UIS testing guarantees survival over >10⁶ solenoid actuation cycles; low Q_g reduces driver IC loading and switching losses.

Engine Cooling Fan Control

Automotive HVAC Blower Motor

Use Scenario: PWM-controlled 12 V DC brush motor driving engine cooling fan in thermal management system.

IC Role / Device Role / Timing Role: Low-side switching MOSFET providing precise duty-cycle-regulated current to motor windings.

Use Value: R_DS(on) = 0.035 Ω minimizes I²R losses at 7.8 A peak, while E_AS = 5 mJ absorbs flyback energy during PWM turn-off without external clamping.

Use Scenario: Speed-controlled blower motor in passenger cabin HVAC system with variable airflow demand.

IC Role / Device Role / Timing Role: High-efficiency N-channel switch in low-side configuration, driven by MCU PWM output.

Use Value: Logic-level compatibility (R_DS(on) = 0.052 Ω @ 4.5 V) ensures full enhancement from 5 V microcontroller outputs, eliminating level-shifting circuitry.

Fuel Pump Driver

Transmission Solenoid Switch

Use Scenario: Constant-current or PWM-driven 12 V fuel pump in gasoline direct injection (GDI) systems.

IC Role / Device Role / Timing Role: Primary power switch regulating pump voltage and current under ECU command.

Use Value: +175 °C rated junction temperature supports mounting near hot engine blocks; AEC-Q101 qualification ensures long-term reliability in safety-critical fuel delivery.

Use Scenario: On/off control of hydraulic pressure solenoids in automatic transmission valve bodies.

IC Role / Device Role / Timing Role: Robust load switch handling repetitive inductive turn-off transients in gear-shifting cycles.

Use Value: 100 % UIS testing guarantees survival over >10⁶ solenoid actuation cycles; low Q_g reduces driver IC loading and switching losses.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel 30 V automotive MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRLML6344TRPBF	R_DS(on) = 0.038 Ω @ 4.5 V; no AEC-Q101 qualification; R_thJA = 120 °C/W	Not approved for automotive safety-critical systems; suitable only for industrial or consumer-grade 12 V switching	Select only if AEC-Q101 compliance is not required and thermal margin allows higher R_thJA
DMN3028LFG-7	R_DS(on) = 0.028 Ω @ 4.5 V; AEC-Q101 qualified; TSOP-6 package; lower V_GS(th) (1.0–2.0 V)	Better low-voltage drive margin and slightly lower conduction loss, but same thermal footprint and pinout	Preferred for new designs requiring tighter gate threshold control and marginally improved efficiency

Compared with IRLML6344TRPBF, SQ3456BEV-T1_GE3 provides certified automotive reliability and superior thermal performance; versus DMN3028LFG-7, it trades minor R_DS(on) increase for proven field history and identical layout compatibility in legacy AEC-Q101 designs.

Availability

SQ3456BEV-T1_GE3 is available at Aetrix Electronics and suitable for engine cooling fan control, automotive HVAC blower motors, and fuel pump drivers requiring stable component supply across extended temperature and automotive lifecycle requirements.

Supply support for SQ3456BEV-T1_GE3 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

Vishay Siliconix is a global leader in discrete semiconductors, specializing in power MOSFETs, diodes, and optoelectronics with emphasis on automotive, industrial, and computing applications.

The SQ3456BEV-T1_GE3 belongs to Vishay's TrenchFET® automotive power MOSFET family, engineered specifically for high-reliability 12 V load switching in harsh under-hood environments.

FAQ

What is the maximum continuous drain current for SQ3456BEV-T1_GE3 at 125 °C case temperature?

The SQ3456BEV-T1_GE3 supports 4.5 A continuous drain current at T_C = 125 °C, as specified in its Absolute Maximum Ratings table. This derating reflects thermal limits of the TSOP-6 package and ensures safe operation in high-ambient under-hood locations. The device maintains R_DS(on) ≤ 0.064 Ω at 175 °C junction temperature, preserving switching efficiency even at elevated temperatures.

Is SQ3456BEV-T1_GE3 suitable for driving inductive loads like solenoids or relays?

Yes, SQ3456BEV-T1_GE3 is fully suitable for inductive load switching. It is 100 % tested for unclamped inductive switching (UIS) and rated for single-pulse avalanche energy E_AS = 5 mJ. Its robust body diode (V_SD = 0.8–1.1 V) and low gate charge enable controlled turn-off without external snubbers in solenoid and relay driver circuits.

Does SQ3456BEV-T1_GE3 require a gate resistor for typical MCU-driven applications?

A gate resistor is recommended for SQ3456BEV-T1_GE3 in MCU-driven applications to damp ringing and control dV/dt. With Q_g = 6–10 nC and typical gate drive impedance < 100 Ω, a 10–22 Ω series resistor optimizes switching speed while preventing oscillation. The device's R_g = 3.0–11 Ω internal gate resistance further stabilizes turn-on/turn-off behavior.

What is the thermal resistance from junction to ambient (R_thJA) for SQ3456BEV-T1_GE3 in standard PCB mounting?

The SQ3456BEV-T1_GE3 has R_thJA = 110 °C/W when mounted on a 1" square FR-4 PCB with 2 oz copper on both sides. This value assumes standard JEDEC test conditions and guides thermal design for natural-convection cooling. For higher power density, the lower R_thJF = 38 °C/W to the drain foot enables direct thermal coupling to copper pours or heat spreaders.

How does the AEC-Q101 qualification of SQ3456BEV-T1_GE3 impact its use in automotive designs?

The AEC-Q101 qualification of SQ3456BEV-T1_GE3 confirms it meets rigorous stress tests for automotive electronics, including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing. This certification allows direct use in safety-compliant modules like body control units and engine management systems without additional component-level qualification effort.

SQ3456BEV-T1_GE3 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: TrenchFET®

Package/Case:: SOT-23-6 Thin, TSOT-23-6

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 7.8A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 35mOhm @ 6A, 10V

Vgs(th) (Max) @ Id:: 2.5V @ 250µA

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

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 370 pF @ 15 V

FET Feature:: -

Power Dissipation (Max):: 4W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 6-TSOP

SQ3456BEV-T1_GE3 FAQ

1.How can I place an order for SQ3456BEV-T1_GE3 through Aetrix?

Please submit a Request for Quotation (RFQ) for SQ3456BEV-T1_GE3 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 SQ3456BEV-T1_GE3 reliable?

The price and inventory of SQ3456BEV-T1_GE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SQ3456BEV-T1_GE3 is usually 5 days.

3.What payment methods are accepted for SQ3456BEV-T1_GE3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SQ3456BEV-T1_GE3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SQ3456BEV-T1_GE3?

SQ3456BEV-T1_GE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SQ3456BEV-T1_GE3 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 SQ3456BEV-T1_GE3?

For technical support, including SQ3456BEV-T1_GE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SQ3456BEV-T1_GE3 requirements.

6.How does Aetrix verify that SQ3456BEV-T1_GE3 is sourced from the original manufacturer or authorized distributors?

All SQ3456BEV-T1_GE3 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 SQ3456BEV-T1_GE3 meets industry standards.

7.What is the process for return or replacement of SQ3456BEV-T1_GE3?

All SQ3456BEV-T1_GE3 units undergo pre-shipment inspection (PSI). If there is an issue with SQ3456BEV-T1_GE3, 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 SQ3456BEV-T1_GE3 part is unused and in its original packaging.

Return procedure for SQ3456BEV-T1_GE3:

1.Submit a request within 90 days.

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

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