R30R090 Datasheet | Littelfuse

Next Previous Resettable PTCs Radial Leaded PTC 30R Series ® ® - 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 paths and 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. - The 30R Series is a 30V Radial Leaded Device with a 40A Short Circuit Rating. Standard reel quantities: Part Number R30R090 R30R110 R30R135 R30R160 R30R185 R30R250 Reel Quantity Part Number R30R300 R30R400 30R500 30R600 30R700 30R800 30R900 Reel Quantity 1500 Bulk Only 500 Per Container AGENCY APPROVALS: Recognized under the ponents Program of Underwriters Laboratory and the ponent Acceptance Program of CSA. TUV approved. 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. Mechanical Shock: MIL-STD-202, Method 213 test condition I (100 g’s, 6 sec.). No resistance change. Max. Surface Temperature: 125°C Operating/Storage Temperature: - 40°C to 85°C Rerating Curve for 30R Series 200 Percentage of Rated Current AGENCY FILE NUMBERS: UL E183209, CSA LR 108832 PHYSICAL SPECIFICATIONS: Materials: Leads 30R090-250: Tin plated copper-clad steel, 24 AWG (0.020" Dia.) 30R300-900: Tin plated copper, 20 AWG (0.032" Dia.) Lead...