حفاظت مدار فیوز خودبازگشت (پی‌تی‌سی)

Product Attributes

Introduction

Positive Thermal Coefficient devices(PTC), provide over-current protection for electrical and electronic devices. They function using conducting strips of metal imbedded inside polymers. Under normal conditions, the devices resistance is near zero, but over-current conditions will heat the PTC and expand the polymer, increasing the impedance. When current returns to normal, the components cool down, returning to their original shape and very low levels of resistance.

Features

• I(hold): 0.5~9.0A 30V Operating voltages
• Radial leaded devices.
• Over-current protection
• Very high voltage surge capabilities.
• Available in lead-free version.
• Fast time–to–trip RoHS compliant, Lead- Free and Halogen-Free

Applications

• Over-current and over-temperature protection of automotive electronics
• Hard disk drives
• Point-of-sale (POS) equipment
• PCMCIA cards
• Power over Ethernet (POE)
• HDMI 1.4 Source protection
• Computers & peripherals
• Industrial control
• Security systems