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  • 深圳市南村电子科技有限公司
  • 化工币: 50
  • 诚信指数:10   诚信等级:诚信等级:一星半级
  • 荣誉证书:0 项
  • 联系人:
  • 电话:86 0755 27611177/27613033/27613099   13689530010
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  • 公司地址:中国 广东 深圳市 石岩街道第四工业区2栋
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该公司还有3条同类“自恢复熔断器”供应商机
详细信息
 保持电流:   1.10(A) ((A))  最大电流:   2.20(A) ((A))
 动作时间:   30(V) ((s))  最小电阻:   40(A) ((Ω))

Use the following steps to select a product for the circuit to be protected: (1) Choose the appropriate product construction type based on PCB Design Considerations : Dip type or SMD type or others. (2) Choose a voltage rating: a PPTC device should be chosen with a voltage rating that equals or exceeds the source voltage in a particular circuit. Also, the expected fault voltage should not be greater than the PPTC voltage rating. For instance 72/30 series. (3) Using the IHold vs.Temperature Table on the product family data sheet, select the polymeric device at the maximum operating temperature with an IHold greater than or equal to the normal operating current. (4) According to the circuit's Operating Current, Operating Voltage and Maximum Ambient Temperature refer to resettable fuse's Electrical Characteristics table and Thermal derating Curve to select an appropriate product (series and part num ber). PRODUCT SELECTION GUIDE 1.Complete the sheet below based on circuit design, and you will find the model you need: Form: DIP SMDMaximum operating current & voltage: V Normal o p erating current & voltage: V Maximum Ambient Temperature / Derating Typical fault current A Minimum current in the circuit: A Required response time at fault: S2. choose the model you need: PTC type Vmax Ih Applications PTC model AC/DC6V 75mA -3.0A V Motor/ safety lamp/main board IC,USB/1394link SN6-XXX AC/DC16V 2.0A -14.0A otorcar safeguard/automobile wire harnesses /high/low frequency power/transformer/ electric toy / electric massage chair SN16-XXX AC/DC30V 0.7A -9.0A House cinema/ loudhailer /divider/ ELECTROMAGNETISM LOAD /motor/cleaner/High/low frequency recharger/ electric toy SN30-XXX AC/DC72V 0.050A -3.75A NB Satellite video receivers /DCD/vehicle’ CD/LCD monitor/ Switching Power Supplie s /POS equipment/ loudspeaker SN72-XXX AC/DC90V 0.15A -0.90A lectronic ballast / Halogen Bulb / fluorescent lamp / Healthcare reading lamp/ Magnetic Ballasts SN90-XXX AC/DC250V 0.050A -1.0A ADSL/XDSL sound separator/exchanger/Patching p rimary protection/POS equipment /prepay ammeter /water meter/HV motor SN250-XXX SMD贴片式 AC/DC6-60V 0.10A-2.60A High density PCB circuit/IE1394/ link/USBCPU/hard disk driver circuit/gateway router/DVD/ exchanger SMD1812-XXX AC/DC6-60V 0.125A-.50A SMD1206-XXX AC/DC6-60V 0.05A-1.50A SMD1210-XXX 过流保护片式 DC12-24V 0.70A -9.0A echargeable battery NiMH/NiCD/Li battery  PTCXXX-A/B AI 自动插件编带式  AC/DC06-50V  0.10A-.75A AI mounting machine  SN-AI-XXX 符号说明: Ih Hold current—maximum current at which the device will not trip under specified conditions at 25 ° C unless otherwise specified. Vmax The highest voltage that can safely be dropped across a Poly Switch device continuously in its tripped state under specified fault conditions. It Minimum current at which a device will trip under specified conditions. Vmaxi Typical power dissipated from device when in the tripped state in 23 ℃ still air environment Imax The highest fault current that can safely be used to trip a Poly Switch device under specified conditions. Rmin Maximum device resistance under specified conditions measured 1 hour post trip or post reflow. Pdmax Maximum device resistance under specified conditions as supplied. Rmax Minimum device resistance under specified conditions as supplied.
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