NR72AB0 Bourns

56 67 1 1 5 5 C 1 2 1 5 C N R 7 2 A B 0 N R 7 7 C B 0 Features Applications n Formerly a Battery cell protectionproduct for: n Miniature Thermal Cutoff (TCO) device n Notebook PCs n Tablet PCs n Smallest body size, two current types n Smart phones n Overtemperatureand overcurrent protection for lithium polymer and prismatic cells n Mobile phones n Controls abnormal, excessive current virtually instantaneously n Wide range of temperature options NR Series Breaker (Thermal Cutoff Device) Ratings A-TYPE Specification NR72AB0 NR77AB0 NR82AB0 NR85AB0 Trip Temperature 72 C 5 C 77 C 5 C 82 C 5 C 85 C 5 C Reset Temperature 40 C min. Contact Rating DC12V / 25 A, 6000 cycles Maximum Breaking Current DC5V / 60 A, 100 cycles Maximum Voltage DC28V / 25 A, 100 cycles Minimum Holding Voltage 2 V 25 C for 1 minute Maximum Leakage Current 200 mA max. 25 C Resistance 5 milliohms max. C-TYPE Specification NR72CB0 NR77CB0 NR82CB0 NR85CB0 Trip Temperature 72 C 5 C 77 C 5 C 82 C 5 C 85 C 5 C Reset Temperature 40 C min. Contact Rating DC12V / 12 A, 6000 cycles Maximum Breaking Current DC5V / 30 A, 100 cycles Maximum Voltage DC28V / 12 A, 100 cycles Minimum Holding Voltage 2 V 25 C for 1 minute Maximum Leakage Current 150 mA max. 25 C Resistance 15 milliohms max. Mini-breaker TCOs reset when the following conditions are met: The ambient temperature has dropped by 10 C below the minimum trip temperature, and Power to the TCO has been cycled (off/on) Product Dimensions Agency Recognition 4.8 0.1 (.189 .004) Description 3.2 0.1 3.2 0.1 (.126 .004) (.126 .004) 0.1 0.01 UL, cUL File Number: E215638 (.004 .0004) TUV File Number: R50281578 0.89 0.05 2.0 0.1 2.0 0.1 (.035 .002) How to Order (.079 .004) (.079 .004) MM DIMENSIONS: NR 77 A B 0 2.8 0.1 (INCHES) (.110 .004) Series Designator Terminal modifications including bending and extending are available upon request. Trip Temperature (5 C) 72 82 77 85 Product Structure Arm Material COVER COVER PLATE ARM A = Cu Alloy High Current Type C = Cu Alloy Low Current Type ARM TERMINAL CONTACT Terminal Type 1 = With Projection B = No Projection PROJECTION PROJECTION PTC Manufacturers Internal Code BASE BIMETAL DISC BASE TERMINAL AVAILABLE WITH AND WITHOUT PROJECTIONS. ** Bourns considers a product to be halogen free if (a) the Bromine (Br) content oris less 900 ppm(b) the Chlorine (Cl) content is 900 ppm or less and (c) the total Bromine (Br) and Chlorine (Cl)1500 content ppm oris less. WARNING Cancer and Reproductive Harm Specifications are subject to change without notice. www.P65Warnings.ca.gov Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of * RoHS Directive 2015/863, Mar 31, 2015 and Annex. this document, and at www.bourns.com/docs/legal/disclaimer.pdf. NR Series Breaker (Thermal Cutoff Device) Typical Performance Current vs. Temperature Curves Current vs. Temperature Curves A-Type C-Type 20 10 19 NR72AB0 (Low 67 C average NR72CB0 (Low 67 C average 18 9 17 NR77CB0 (Low 72 C average NR77AB0 (Low 72 C average 16 8 NR82CB0 (Low 77 C average 15 NR82AB0 (Low 77 C average 14 7 NR85CB0 (Low 80 C average 13 NR85AB0 (Low 80 C average 12 6 11 10 5 9 8 4 7 6 3 5 4 2 3 2 1 1 0 0 20 30 40 50 60 70 80 20 30 40 50 60 70 80 Ambient Temperature (C) Temperature (C) The above curves were derived from placing test samples in an oven at 25 , 40 , 60 and 70, increasing current flow through the sample at a rate of 0.1 A/minute and recording the current value when the sample trips. Operation NORMAL CIRCUIT CURRENT EXCESSIVE CURRENT AND/OR HEAT CIRCUIT AFTER OPENING VERY LOW CURRENT Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Current (A) Current (A)