Radial Leaded PTC Resettable Fuse: FRT 135-33F 1. Summary (a) RoHS Compliant (Lead Free) Product (b) Applications: IEEE 1394 FireWire, Computers & Consumer electronics (c) Product Features: Fast trip time, Lower Trip-to-hold Ratio, Radial-leaded product ideal for up to 36V (d) Operation Current: 1.35A (e) Maximum Voltage: 36V (f) Temperature Range : -40℃ to 85℃ 2. Agency Recognition UL: E211981 C-UL: E211981 TUV : R50004084 3. Electrical Characteristics (23℃) Part Number FRT135-33F Hold Trip Maximum Current Current Current IH,A 1.35 IT,A 2.50 IMAX,A 40 Rated Voltage Typical Power Resistance RMIN R1MAX VMAX,Vdc 36 Pd, W 0.84 Ω 0.059 Ω 0.143 IH=Hold current-maximum current at which the device will not trip at 23℃ still air. IT=Trip current-minimum current at which the device will always trip at 23℃ still air. V MAX=Maximum voltage device can withstand without damage at its rated current. I MAX= Maximum fault current device can withstand without damage at rated voltage (V MAX). Pd=Typical power dissipated from device when in tripped state in 23℃ still air environment. RMIN=Minimum device resistance at 23℃. R1MAX=Maximum device resistance at 23℃, 1 hour after tripping . Physical specifications: Lead material: Tin plated copper, 24 AWG. Soldering characteristics:MIL-STD-202, Method 208E. Insulating coating:Flame retardant epoxy, meets UL-94V-0 requirement. 4. Production Dimensions (millimeter) Lead Size :24AWG, Φ 0.51 mm Diameter Part A Number Maximum FRT135-33F 7.4 B C D E F Maximum 14.2 Typical 5.1 Minimum 7.6 Maximum 3.0 Typical 1.1 NOTE : Specification subject to change without notice. 5. Thermal Derating Curve Thermal Derating, FRT 135-33F Percent of Hold and Trip Current 200% 150% 100% 50% 0% -40 -20 0 20 40 60 80 Temperature, C 6. Typical Time-To-Trip at 23℃ FRT 135-33F 1000 Time-to-trip (S) 100 10 1 0.1 0.01 0.1 1 10 Fault Current (A) NOTE : Specification subject to change without notice. 100 7. Material Specification Lead material：Tin plated copper, 24 AWG. Soldering characteristics: MIL-STD-202, Method 208E. Insulating coating:Flame retardant epoxy, meets UL-94V-0 requirement 8. Part Numbering and Marking System Part Numbering System Part Marking System FRT □ □ □- □ □F F RoHS Compliant / Lead Free Voltage rating F R T135F 50AB RT □ □ □ F RoHS Compliant / Lead Free Part Identification Product Family Current rating Example □ □ □ □ Date Code/Lot Number Warning: -Operation beyond the specified maximum ratings or improper use may result in damage and possible electrical arcing and/or flame. -PPTC device are intended for occasional overcurrent protection. Application for repeated overcurrent condition and/or prolonged trip are not anticipated. - Avoid contact of PPTC device with chemical solvent. Prolonged contact will damage the device performance. NOTE : Specification subject to change without notice.