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MAN3940A from QTC

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MAN3940A

Manufacturer: QTC, Fairchild/, QT

0.300-INCH SEVEN SEGMENT DISPLAYS
Partnumber Manufacturer Quantity Availability
MAN3940A QTC, Fairchild/, QT 271 In Stock

Description and Introduction

0.300-INCH SEVEN SEGMENT DISPLAYS The **MAN3940A** is a **P-Channel Logic-Level Enhancement Mode Field Effect Transistor (FET)** manufactured by **Fairchild Semiconductor**.  

### **Specifications:**  
- **Type:** P-Channel MOSFET  
- **Drain-Source Voltage (VDSS):** -20V  
- **Gate-Source Voltage (VGS):** ±12V  
- **Continuous Drain Current (ID):** -4.3A (at VGS = -10V)  
- **Pulsed Drain Current (IDM):** -17A  
- **Power Dissipation (PD):** 2.5W (at 25°C)  
- **On-Resistance (RDS(on)):** 0.055Ω (max at VGS = -10V)  
- **Threshold Voltage (VGS(th)):** -1.0V to -2.5V  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** TO-220AB  

### **Description:**  
The **MAN3940A** is designed for **low-voltage, high-speed switching applications**, making it suitable for **power management, DC-DC converters, motor control, and load switching**.  

### **Features:**  
- **Logic-Level Gate Drive** (fully enhanced at VGS = -4.5V)  
- **Low On-Resistance** for efficient power handling  
- **Fast Switching Speed**  
- **Avalanche Energy Specified**  
- **Lead-Free & RoHS Compliant**  

This information is based on Fairchild Semiconductor's datasheet for the **MAN3940A** P-Channel MOSFET.

Application Scenarios & Design Considerations

0.300-INCH SEVEN SEGMENT DISPLAYS

Alternative Part Number

  • LTS-3401WC --: Common-cathode 7-segment LED display in the same 0.4-inch class, widely available and pin-compatible in most designs.
  • HDSP-5501 --: Industry-standard 0.56-inch 7-segment display with similar electrical characteristics and reliable second-source availability.
  • SA56-11EWA --: 0.56-inch single-digit 7-segment display offering comparable brightness and pinout, suitable as a drop-in replacement.
  • LTS-3401JR --: Common-cathode 7-segment LED display in the same 0.3-inch class, widely available and pin-compatible for most MAN3940A display applications.
  • SA56-11SRWA --: Super-red 7-segment LED display with comparable forward voltage and current ratings, offering a cost-effective alternative with similar form factor.

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