a4 Raychem GO%-CAO > 604- ole Overcurrent and overtemperature protection The PolySwitch circuit protector is a positive temperature coefficient (PTC) resistor that undergoes a large abrupt change in resistance when an overcurrent or high temperature heats it above a specific point. Normally just tens of milliohms, the resistance of the PolySwitch device increases by orders of magnitude when switched. This increase limits circuit current to several milliamps. Remotely resettable The device will reset when voltage in the circuit is removed, or in some cases will reset automatically when the overload * Small size Low resistance * High hold currents * Remotely resettable fuses * Latching operation Rugged, monolithic construction PolySwitch RUE R-Line PTC overcurrent protection ee ee eee aaa condition is corrected. Normal circuit operation can then be resumed. The device requires no manual resetting or replacement. Latching (noncycling) operation After switching, the PolySwitch device is latched into its high-resistance, protective State by the small, sustained self-heating current. The device will reset only after it has cooled and the fault condition has been corrected, thus avoiding continuous cycling that could cause circuit damage. Rugged, monolithic constuction Since they are made from solid-state material, PolySwitch devices have no moving parts that can be damaged. Wide variety of applications Possible applications for PolySwitch devices include: * audio speakers * batteries * motors * power supplies * transformers * solenoids * PBXs * telephones * modems * key telephone systems * medical equipment * test instruments * industrial control circuits * computers * automotive small motor and electronics circuits Product dimensions (in millimeters) Part A B Cc D E number max. max. typ. min. max. RUEOSO 6.6 12.2 5.1 7.6 3.0 RUE110 6.6 14.2 5.1 7.6 3.0 RUE135 8.9 13.5 5.1 7.6 3.0 RUE160 8.9 15.2 5.1 7.6 3.0 RUE185 10.2 15.7 5.1 7.6 3.0 RUE250 11.4 18.3 5.1 7.6 3.0 RUE300 11.4 17.3 5.1 7.6 3.0 RUE400 14.0 20.1 5.1 7.6 3.0 RUE500 14.0 24.9 10.2 7.6 3.0 RUE600 16.5 24.9 10.2 7.6 3.0 RUE700 19.1 26.7 10.2 7.6 3.0 RUE800 21.6 29.2 10.2 7.6 3.0 RUE900 24.1 29.7 10.2 7.6 3.0 Lead size RUEOS90-RUE250 RUE300-RUE900 RUEO90-RUE250 0.51 mm (24 AWG) RUE300-RUESOO @ 0.81 mm (20 AWG) " A E ao Operating characteristics Maximum voltage 30 Vrms Maximum interrupt current* 40A Operating/storage temperature range 40C to 85C Maximum surface temperature Typical reset time 125C in tripped state <20 seconds (at 20C), atter power removed Device resistance in tripped state* V2/Pd * Note: Device may withstand higher interupt current at lower voltages. Each application will need to be individually qualified. "* Note: Device will reset when V/4R,