Key facts
- Brand
- Fairchild
- Model
- FQS4901
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-07-12
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Fairchild FQS4901 400V Dual N-Channel MOSFET Datasheet
The document describes the Fairchild FQS4901, a dual N-Channel enhancement mode power MOSFET produced using proprietary planar stripe DMOS technology. Key features include low on-state resistance (Ron), fast switching speeds, and improved dv/dt capability, making it suitable for high efficiency switch mode power supplies and electronic lamp ballasts based on half bridge configurations.
The datasheet provides absolute maximum ratings, electrical characteristics, typical performance curves, and package dimensions. It specifies a drain-source voltage of 400V, a continuous drain current of 0.45A at 25°C, and an operating temperature range from -55°C to +150°C.
Fairchild FQS4901 specifications
| Continuous Drain Current (Ta = 25°C) | 0.45 A |
|---|---|
| Power Dissipation (Ta = 25°C) | 2.0 W |
| Operating and Storage Temperature Range | -55 to +150 °C |
| Thermal Resistance, Junction-to-Ambient (Typ) | 62.5 °CAN |
Source: Fairchild FQS4901 400V Dual N-Channel MOSFET Datasheet
All Fairchild FQS4901 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the typical on-state resistance (Ron) of the FQS4901?
The typical on-state resistance is 4.22 ohms at Vgs = 10V.
From: Fairchild FQS4901 400V Dual N-Channel MOSFET Datasheet
What is the typical total gate charge?
The typical total gate charge is 5.8 nC.
From: Fairchild FQS4901 400V Dual N-Channel MOSFET Datasheet
What is the maximum drain‑source voltage for the FQS4901?
The FQS4901 can withstand a drain‑source voltage of up to 400 V.
From: Fairchild FQS4901 400V Dual N-Channel MOSFET Datasheet
What is the continuous drain current rating at 25 °C?
The continuous drain current is rated at 0.45 A when the case temperature is 25 °C.
From: Fairchild FQS4901 400V Dual N-Channel MOSFET Datasheet
What is the maximum drain‑source voltage for the FQS4901?
The device is rated for a maximum drain‑source voltage of 400 V.
What continuous drain current can the FQS4901 handle at 25 °C?
It can conduct up to 0.45 A continuously at 25 °C.