The 1206 SMD self-resetting fuse (PTC resettable fuse) is a compact, surface-mount protection component designed to safeguard electronic circuits from overcurrent and short-circuit conditions. Once an excessive current flow is detected, the fuse increases resistance to limit the current. After the fault is cleared, the fuse automatically resets and returns to normal operation. Available in multiple current ratings (120mA, 200mA 500mA, 750mA, 1A, 2A, 6A, 7A) and voltage options (6V, 8V, 16V, 24V, 30V), this PTC fuse is widely used in small electronics, power supply circuits, battery protection, and consumer devices.

Features:

• Self-resetting PTC technology automatically restores function after fault removal

• Available in multiple current ratings: 120mA, 200mA, 500mA, 750mA, 1500mA

• Wide voltage range options: 6V, 8V, 16V, 24V, 30V

• 1206 SMD package for compact PCB mounting

• Protects circuits from overcurrent and short circuits

• Fast response when current exceeds rated limits

• Stable performance and long-term reliability

• Ideal for low-voltage DC electronics

• Compatible with reflow soldering and standard SMT assembly

• No need for replacement like traditional fuses

Specifications:

• Type: PTC Resettable Fuse

• Package Size: 1206 SMD

• Current Ratings: 120mA/ 200mA/ 500mA/ 750mA/ 1500mA

• Voltage Ratings: 6V / 8V / 16V / 24V/ 30V

• Reset Type: Automatic reset after overload removal

• Operating Temperature: Standard electronics range

• Usage: Overcurrent and short-circuit protection

• Applications: Power boards, battery circuits, chargers, USB devices, consumer electronics

How It Works:

• During normal operation, the fuse has low resistance

• When excessive current flows, resistance increases sharply

• This limits current to protect the circuit

• When the fault condition is removed, the fuse cools

• Resistance returns to normal, restoring circuit functionality

How to Use:

• Solder the fuse onto the PCB in series with the load

• Choose current and voltage ratings based on your circuit design

• Ensure the selected fuse matches the device’s maximum current draw

• Ideal for compact PCBs requiring space-efficient protection

• Test circuit functionality after soldering to confirm proper behavior

Suitable Applications:

• Power supply protection

• Battery charging circuits

• USB and portable devices

• LED drivers and controllers

• Communication modules

• Consumer electronics

• Robotics and automation control boards

• Microcontroller and Arduino-based projects

Safety Precautions:

• Always select a fuse with proper current and voltage rating

• Do not exceed rated operating limits

• Ensure good solder joints for reliable performance

• Use in low-voltage DC applications only

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