PolySwitch(R) PTC Devices PRODUCT: SMD250F/15-2920 DOCUMENT: SCD27978 REV LETTER: D REV DATE: JULY 6, 2011 PAGE NO.: 1 OF 1 Overcurrent Protection Device Specification Status: Released Maximum Electrical Ratings Operating Voltage / Interrupt Current C 15VDC / 40A Marking: B G H D A E 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: 6.73 7.98 in*: (0.265) (0.314) B MIN --- C D E F G H MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN 3.00 4.8 5.44 0.56 0.71 0.56 0.71 2.16 2.41 0.66 1.37 0.43 (0.118) (0.19) (0.214) (0.022) (0.028) (0.022) (0.028) (0.085) (0.095) (0.026) (0.054) (0.017) TABLE II. PERFORMANCE RATINGS: CURRENT RATINGS** AMPS AT 0C HOLD TRIP 2.8 5.6 AMPS AT 20C HOLD TRIP 2.5 5.0 TIME TO TRIP** AMPS SECONDS AT AT 60C 20C, 8.0A HOLD TRIP MAX 1.6 3.2 10 RESISTANCE VALUES OHMS AT 20C MIN MAX* 0.035 0.085 TRIPPED-STATE POWER DISSIPATION** WATTS AT 20C MAX 1.5 * Maximum resistance is measured 1 hour after reflow. ** Values specified were determined using PCB's with 0.100"X2.0 ounce copper traces. Agency Recognitions: Reference Document: 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 ELV Compliant Pb-Free Halogen Free* HF * Halogen Free refers to: Br900ppm, Cl900ppm, Br+Cl1500ppm. (c) 2010, 2011 Tyco Electronics Corporation, a TE Connectivity Ltd. Company. All rights reserved. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TE Connectivity: SMD250F/15-2920-2