The NSMD050 is a surface mount resettable fuse (PPTC) manufactured by TECHFUSE. It's designed to protect electronic circuits from overcurrent conditions. When an overcurrent occurs, the device heats up and switches to a high-resistance state, limiting the current flow and protecting the circuit. Once the fault is removed and power is cycled, the device cools down and resets to its low-resistance state.

Applications

• USB port protection
• HDMI port protection
• Power supply protection
• Battery pack protection
• General electronic circuit protection

Features

• Hold Current (IHOLD): 0.5 A
• Trip Current (ITRIP): 1.0 A
• Maximum Voltage (VMAX): 30 V
• Package Size: 1206 (3216 Metric)
• Operating Temperature: -40°C to +85°C
• Termination: Surface Mount
• Resettable: Yes
• RoHS Compliant: Yes

Benefits

• Overcurrent Protection: Protects circuits from damage due to overcurrent events.
• Resettable: Automatically resets after the fault is removed, eliminating the need for replacement.
• Small Size: Compact package allows for easy integration into space-constrained designs.
• Wide Voltage Range: Suitable for use in a variety of voltage applications.
• Reliable Performance: Provides consistent and reliable protection.
• Cost-Effective: Eliminates the need for replacing fuses after each overcurrent event.

Additional Details

The NSMD050 PPTC is constructed using a polymeric positive temperature coefficient material. This material undergoes a significant increase in resistance when its temperature rises above a certain point. The NSMD series from Techfuse is designed to be a reliable and efficient overcurrent protection solution. The device is available in tape and reel packaging for automated assembly. The hold current (Ihold) is the maximum current the device can withstand without tripping, while the trip current (Itrip) is the current at which the device will trip and switch to its high-resistance state.