MFG:LITTELFUSE Package Cooled:NEW AND ORIGINAL D/C:08+/09+
30R090, 30R0C27, 30R1 0805(4 DIGITS) Datasheet download
MFG: LITTELFUSE
Package Cooled: NEW AND ORIGINAL
D/C: 08+/09+
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PDF/DataSheet Download
Datasheet: 30R500
File Size: 119683 KB
Manufacturer: LITTELFUSE [Littelfuse]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: 30R500
File Size: 119683 KB
Manufacturer: LITTELFUSE [Littelfuse]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: 30R500
File Size: 119683 KB
Manufacturer: LITTELFUSE [Littelfuse]
Download : Click here to Download
The 30R Series is a 30V Radial Leaded Device with a 40A Short Circuit Rating.The 30R Series Resettable devices utilize a unique polymer-based,Positive Temperature Coefficient (PTC) material to protect electrical
circuits against overcurrent conditions.In normal operation, the 30R Series PTC has many conductive pathsand a very low resistance. In an overcurrent condition, the temperature of the polymer material rises. This dramatically reduces the conductive paths resulting in an immediate rise in resistance. In this condition, the device provides circuit protection by significantly limiting the flow of current. However, once the cause of the initial overcurrent condition is eliminated, the 30R Series PTC cools down and resets to a low resistance value permitting the normal current flow to resume.
Here you can get some information about the materials.The lead solderability uses MIL-STD-202, Method 208E
The coating uses thermoset coating.Standard bulk packaging is 500 pieces per container.Optional tape and reel packaging per EIA 486-B is also available.
Then is about the environmental specifications.Passive Aging: 85°C, 1000 Hours. ±5% typical resistance change;Humidity Aging: 85°C, 85% R.H., 1000 hours. ±5% typical resistance change;Thermal Shock: 85°C / 40°C, 20 times. ±10% typical resistance change;Vibration: MIL-STD 202, Method 201. No resistance change.The Max. Surface Temperature is 125°C.The Operating/Storage Temperature is 40°C to 85°C.
The following is about the 30R090.The Ihold (Hold Current: maximum current device will sustain for 4 hours without tripping in 20°C still air.) is 0.90 A.The Itrip (Trip Current: minimum current at which the device will trip in 20°C still air.) is 1.80 A.The Vmax (Maximum voltage device can withstand without damage at rated current (Imax)) is 30 V.The Imax (Maximum fault current device can withstand without damage at rated voltage (Vmax)) is 40 A.The Pd (Power dissipated from device when in the tripped state at 20°C still air.) is 0.6 W.The RIL (Minimum resistance of device in initial (un-soldered) state.) is 0.070 W.The RAT (Maximum resistance of device at 20°C measured one hour after tripping.) is 0.22 W.The Maximum Time To Strip is 5.9 sec at the current is 4.50 A.
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