Tyco / Electronics PolySwitch(R) PTC Devices Raychem Circuit Protection 308 Constitution Drive Menlo Park, CA 94025-1164 Phone: 800-227-4856 Fax: 800-227-4866 PRODUCT: SMD185F Overcurrent Protection Device DOCUMENT: SCD 25659 PCN: 748040 REV LETTER: C REV DATE: MARCH 28, 2005 PAGE NO.: 1 OF 1 Specification Status: Released C Maximum Electrical Ratings Voltage: 33VDC MAX Current: 40A MAX B H G Marking: D E A F 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** AMPS SECONDS AT AT 60C 20C, 8.0A HOLD TRIP MAX 1.31 2.62 5.0 TRIPPED-STATE POWER DISSIPATION** OHMS WATTS AT AT 20C 20C MIN MAX* MAX 0.065 0.165 1.5 RESISTANCE VALUES * 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, E.N. SMD 1.0x 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 ELV Compliant (c) 2005 Tyco Electronics Corporation. All rights reserved. Pb-Free