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Vishay SI4178DYT1GE3 N-Channel Power MOSFET

The Si4178DY is a Vishay Siliconix N-Channel 30 Volt MOSFET designed for efficient power switching in notebook system power and low-current DC/DC applications. Featuring low Rds(on) of 0.021 at 10V and 0.083 at 4.5V, it offers a maximum drain-source voltage of 30V and continuous drain currents up to 8.3A at 25°C. Its robust design supports pulsed currents up to 40A and includes a low gate charge for fast switching times. The device operates within a temperature range of -55°C to 150°C, with a thermal resistance of 42°C/W junction-to-ambient. It is RoHS and halogen-free, suitable for compact, high-efficiency power modules.

Authorized Distributors
Source:Newark
Part No:SI4178DY-T1-GE3
Stock:2490
Inv Date:06-09-2026
Price: Unit price: $1.16
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Source:DigiKey
Part No:SI4178DY-T1-GE3
Stock:5000
Inv Date:06-09-2026
Price: Unit price: $0.27088
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Part No:SI4178DY-T1-GE3
Stock:17076
Inv Date:06-10-2026
Price: Unit price: $1.08
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Part No:SI4178DY-T1-GE3
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.61
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Part No:SI4178DY-T1-GE3
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.178
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Source:Arrow EU
Part No:SI4178DY-T1-GE3
Stock:2500
Inv Date:06-10-2026
Price: N/A
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Part No:SI4178DY-T1-GE3
Stock:965
Inv Date:06-10-2026
Price: N/A
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Vishay SI4178DYT1GE3 N-Channel Power MOSFET Specifications:

  • Drain-Source Voltage: 30 V
  • Gate-Source Voltage: ±25 V
  • Continuous Drain Current: 8.3 A at 25°C
  • Pulse Drain Current: 40 A
  • Maximum Power Dissipation: 4.5 W at 70°C
  • On-Resistance (Vgs=10V): 0.021Ω
  • On-Resistance (Vgs=4.5V): 0.083Ω
  • Gate Charge (Qg): 75 nC
  • Gate Resistance: 0.5Ω
  • Operating Junction Temperature Range: -55°C to 150°C
  • Thermal Resistance Junction-to-Ambient: 42°C/W
  • Package Type: SO-8 (Narrow)
  • RoHS and Halogen-Free compliant
  • Device supports pulsed currents up to 40A with avalanche energy of 5 mJ

Buy the Vishay Series Si4178 N-Channel MOSFET: SI4178DY

Order the Vishay Si4178DY N-Channel 30V MOSFET online today and elevate your power systems with low Rds(on), high current capacity, and exceptional thermal performance. Perfect for notebook power supplies and low-current DC/DC applications, this device offers quick switching, low gate charge, and robust operation within a wide temperature range. RoHS and halogen-free, it ensures compliance with environmental standards. Purchase now to optimize your design’s efficiency, durability, and reliability while benefiting from fast delivery and technical support.

Buy Vishay Si4178DY now and experience unmatched reliability and performance for your power management designs.

Frequently Asked Questions

Where can I buy Vishay SI4178DYT1GE3?

You can click on the BUY or RFQ button to purchase SI4178DYT1GE3 from an authorized Vishay distributor.

How do I troubleshoot issues or seek technical support for part SI4178DYT1GE3?

You can download the SI4178DYT1GE3 datasheet or visit the Vishay website for support.

Who is the manufacturer of SI4178DYT1GE3?

Vishay

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