15LR260U

POLY-FUSE® Resettable PTCs Axial Lead Battery Strap Type > LR Series LR Series RoHS Description The new LR Series device provides reliable, noncycling protection against overcharging and short circuits events for rechargeable battery cells where resettable protection is desired. Features • Compact design saves board space • Low resistance • Fast trip time • RoHS compliant and lead–free • Weldable Nickel terminals • Slim, low profile design Applications Agency Approvals AGENCY • Camcorders • Rechargeable battery cell protection • Portable Computers AGENCY FILE NUMBER E183209 Additional Information R50119583 Datasheet Samples Resources Electrical Characteristics Part Number I hold (A) I trip (A) V max (Vdc) I max (A) Pd max. (W) 15LR260 2.6 5.8 15 100 15LR380 3.8 8.3 15 100 20LR450 4.5 8.9 20 100 20LR730 7.3 14.1 20 100 Maximum Time To Trip Agency Approvals Resistance Current (A) Time (Sec.) R min (Ω) R typ (Ω) R 1max (Ω) 2.5 13.00 5.00 0.020 0.042 0.063 X X 2.5 19.00 5.00 0.013 0.026 0.037 X X 2.5 22.50 5.00 0.011 0.020 0.028 X X 3.3 30.00 5.00 0.006 0.012 0.015 X X I hold = Hold current: maximum current device will pass without tripping in 20°C still air. R typ = Typical resistance of device in initial (un-soldered) state. I trip = Trip current: minimum current at which the device will trip in 20°C still air. R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow soldering of 260°C for 20 sec. V max = Maximum voltage device can withstand without damage at rated current (I max) Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. I max = Maximum fault current device can withstand without damage at rated voltage (Vmax) P d = Power dissipated from device when in the tripped state at 20°C still air. R min = Minimum resistance of device in initial (un-soldered) state. Temperature Rerating Ambient Operation Temperature -40°C -20°C 0°C 20°C Part Number 40°C 50°C 60°C 70°C 85°C Hold Current (A) 15LR260 3.80 3.40 3.10 2.60 2.20 2.00 1.90 1.70 1.40 15LR380 5.50 4.90 4.40 3.80 3.30 3.00 2.80 2.50 2.10 20LR450 6.50 5.80 5.30 4.50 3.90 3.60 3.30 2.90 2.50 20LR730 10.60 9.50 8.60 7.30 6.30 5.70 5.40 4.70 4.00 © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17 POLY-FUSE® Resettable PTCs Axial Lead Battery Strap Type > LR Series Temperature Rerating Curve 170% LR 150% 1 LT 10 130% 110% 90% 70% 50% 30% 10% -40 Time in Seconds Percentage of Rated Current 10 Time in Seconds 1.00 A 190% 4.50 A 7.30 A 3.80 A 2.60 A Average Time Current Curves 1 -30 -20 -10 0 10 20 30 40 Temperature (°C) 50 60 70 80 0.1 Note: Typical Temperature rerating curve, refer to table for derating data 0.1 Physical Specifications 0.01 0.01 1 10 100 1 1000 Current in Amperes The average time current curves and Temperature Rerating curve performance is affected by a number or variables, and these curves provided as guidance only. Customer must verify the performance in their application. 10 100 1000 Terminal Material Amperesquarter-hard 0.13mm Current nominal in thickness, Nickel Insulating Material Polyester tape Environmental Specifications Operating/Storage Temperature -40°C to +85°C Maximum Device Surface Temperature in Tripped State 125°C Passive Aging +70°C, 1000 hours -/+10% typical resistance change Humidity Aging +85°C, 85% R.H., 7 days -/+5% typical resistance change Vibration MIL–STD–883, Method 2007, Condition A, No change WARNING • Users shall independently assess the suitability of these devices for each of their applications • Operation of these devices beyond the stated maximum ratings could result in damage to the devices and lead to electrical arcing and/or fire • These devices are intended to protect against the effects of temporary over-current or over-temperature conditions and are not intended to perform as protective devices where such conditions are expected to be repetitive or prolonged in duration • Exposure to silicon-based oils, solvents, electrolytes, acids, and similar materials can adversely affect the performance of these PPTC devices • These devices undergo thermal expansion under fault conditions, and thus shall be provided with adequate space and be protected against mechanical stresses • Circuits with inductance may generate a voltage (L di/dt) above the rated voltage of the PPTC device. © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17 POLY-FUSE® Resettable PTCs Axial Lead Battery Strap Type > LR Series Figure 2 Figure 1 Dimensions (Items with S at end of part number) SLIT A E B Figure 1 D1 0.5 x 4.0 NOMINAL (.02”x .15”) A E B Figure D1 2 D2 D2 C (Items with S at end of part number) A A Part Number Inches B mm E B 0.5 x 4.0 NOMINAL SLIT (.02”x .15”) A Inches mm C C D1 Inches mm E D2 E Inches mm Inches mm Inches mm Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Min. Min. Min. Min Max. Min. Max. 0.82 D2 0.16 4.10 0.16 4.10 0.01 15LR260 0.91 20.90 23.10 0.19 15LR380 0.94 1.02 24.00 26.00 0.27 0.22 D1 Top4.90 Side 5.50 0.30 6.90 7.50 0.16 4.10 0.16 4.10 0.01 0.16 4.90 5.10 20LR450 0.94 1.02 24.00 26.00 0.39 0.41 260 9.90 10.50 0.02 Current0.60 Rating 1.00 0.04 0.21 5.30 0.21 5.30 0.01 0.21 5.90 6.10 20LR730 1.07 1.15 0.57 13.90 14.50 0.02 0.04 0.16 4.10 0.16 4.10 0.01 0.16 5.90 6.10 C 27.10 29.10 0.55 Littelfuse Trademark 0.02 Product Series 0.02 0.04 LR XX9R 0.04 0.60 D2 0.60 0.60 Lot Number (Contact Littelfuse for additional information) Part Marking System 1.00 1.00 1.00 C Littelfuse Trademark 4.10 15 LR 260 U Product Series LR 3.90 Part Ordering Number System Top Side 260 XX9R 0.16 QUANTITY CODE U: 500 (bulk) Current Rating LEAD OPTIONS: Blank = standard Lot Number (Contact Littelfuse for additional information) HOLD CURRENT (VALUE DIVIDED BY 100 = HOLD CURRENT IN AMPS) SERIES Voltage Rating (VDC) Packaging Part Number Ordering Number Ihold (A) Ihold Code Packaging Option Quantity Quantity & Packaging Codes 15LR260 15LR260U 2.6 260 Bulk 500 U 15LR380 15LR380U 3.8 380 Bulk 500 U 20LR450 20LR450U 4.5 450 Bulk 500 U 20LR730 20LR730U 7.3 730 Bulk 500 U Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics. © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17