• Temperature      0℃~40℃
• Relative humidity   ＜85%（+30℃）
• Atmospheric pressure  70kPa~106kPa

             

• The resistance of normal atmospheric temperature:≤22Ω
• A, b space are bad in resistance: ≤2Ω(集成电路保安单元≤0.1Ω)
• Overvoltage protection domain:  The Protective unit of the semiconductor rise in the voltage the speed restrains the upper limit of the voltage from being greater than 260V when 100kv/s. 

The characteristic flows in the limit:

• Not the movement electric current:90mA，1h does not act (40℃)

High polymer PTC

• The electric current passes to go out and resume time: ≤ 60s (integrated circuit Protective unit ≤ 1 s)
• The overvoltage crosses the electric current and protects performance : 
• Can reach YD/T694-2004 overvoltage that article stipulate pass electric current protect the performance test standard 5.4.7.

new-type Protective unit (YD/T694-2004 )

• Design according to YD/T694-2004 latest standard, opening a way type structure, every performance accords with the regulation of Ministry of Information Industry YD/T694-2004 sector standard.
• Protect the component and adopt the domestic most high-quality semiconductor and discharge and manage in overvoltage, pass the electric current and protect the component and adopt the newest and most advanced high polymer PTC thermal resistor.

   
The solid discharges and manages

• The hardware adopts the bronze alloy of high-performance tin phosphorus, the surface is gilded.
• All plastics one adopts the putting out material by oneself , its combustibility accords with the demand testing A in national standard GB/T5169.7.
• The components and parts of optimum seeking and unique structure make the shelter performance of the products reliable , especially particularly outstanding to the shelter performance that the thunder and lightning is broken through , the reaction of the power line , power line touch etc.. 
• Have good performance of reporting an emergency and asking for help or increased vigilance, it is reliable that movements are accurate, the overvoltage in the twinkling of an eye, can be replied by oneself after crossing the electric current and disappearing.
• Meet the wide band and transmit the demand : Within the range of 1.2MHZ frequency in 10KHZ , accord with the standard about the trade in every technical indicator.
• Can dispose various types of Protective unit according to the request of user .