PTGL07BD220N3B51B0电路保护的PTC可复位保险丝规格书PDF中文资料

PTGL07BD220N3B51B0属于电路保护的PTC可复位保险丝。由村田制作所制造生产的PTGL07BD220N3B51B0PTC 可复位保险丝PTC 可复位保险丝可在电流超过一定限值时用于阻断电流（过流保护）。保险丝的工作原理是：其温度会因电流增大而升高，导致电阻变大。跳闸电流为 14 mA 至 50 A，跳闸时间为 8 ms 至 90 s。PTC = 正温度系数。

1. Best suited to meet the requirements of the short-circuit test.

Quick response compared with current fuse and resistor and errorfree

operation are assured.

2. Small size save board space. Capable of being mounted

anywhere because replacement is not required.

3. Actuates by excessive current during the short-circuit test to

restrain abnormal heat generation in other circuit components and

printed boards.

This state will be maintained until the abnormal state is removed

or power is turned off to reset the POSISTOR to the original state.

Surface temperature of POSISTOR is kept low, below a certain

value, during the actuation.

4. Non-contact design leads to long life and no noise.

Durable and strong against mechanical vibration and shock

because it is a solid element.