PolySwitch(R) PTC Devices Overcurrent Protection Device PRODUCT: SMD185F DOCUMENT: SCD25659 REV LETTER: G REV DATE: JULY 26, 2016 PAGE NO.: 1 OF 2 Specification Status: Released Maximum Electrical Rating C Operating Voltage / Interrupt Current 33VDC / 40A B H Marking: G D E F A Notes: 1. All metal surfaces are tin plated. 2. Devices cannot be wave soldered. 3. Drawing not to scale. TABLE I. DIMENSIONS: A MIN MAX mm: 8.0 9.4 in*: (0.315) (0.370) B MIN --- C D E F G H MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN 3.0 5.99 6.71 0.56 0.71 0.56 0.71 3.68 3.94 0.66 1.37 0.43 (0.118) (0.236) (0.264) (0.022) (0.028) (0.022) (0.028) (0.145) (0.155) (0.026) (0.054) (0.017) TABLE II. PERFORMANCE RATINGS: CURRENT RATINGS** AMPS AT 0C HOLD TRIP 2.20 4.40 AMPS AT 20C HOLD TRIP 1.85 3.60 TIME TO TRIP** RESISTANCE VALUES AMPS SECONDS AT OHMS AT 60C 20C, 8.0A AT 20C HOLD TRIP MAX MIN MAX* 1.31 2.62 5.0 0.065 0.165 TRIPPED-STATE POWER DISSIPATION** WATTS AT 20C MAX 1.5 * Maximum resistance is measured 24 hours after reflow. ** Values were determined using PCB's with 70 mil X 2 ounce copper traces. Agency Recognition: Reference Documents: Precedence: Effectivity: CAUTION: UL, CSA, TUV PS300 This specification takes precedence over documents referenced herein. Reference documents shall be the issue in effect on the date of invitation for bid. Operation beyond the rated voltage or current may result in rupture, electrical arcing or flame. Materials Information ROHS Compliant * Halogen Free refers to: ELV Compliant Pb-Free Halogen Free* HF Br900ppm, Cl900ppm, Br+Cl1500ppm (c) 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised July 26, 2016 littelfuse.com PolySwitch(R) PTC Devices Overcurrent Protection Device PRODUCT: SMD185F DOCUMENT: SCD25659 REV LETTER: G REV DATE: JULY 26, 2016 PAGE NO.: 2 OF 2 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 shall not be used for, any purpose (including, without limitation, military, aerospace, medical, lifesaving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. (c) 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised July 26, 2016 littelfuse.com