PolySwitch® PRODUCT: ASMD125F PTC Devices DOCUMENT: SCD26581 REV LETTER: F Overcurrent Protection Device REV DATE: JULY 26, 2016 PAGE NO.: 1 OF 2 Specification Status: Released Maximum Electrical Ratings C Operating Voltage / Interrupt Current 16V / 40A DC 12V / 60A DC 5V / 125A DC Mark ing: B G H 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 B C D E F G H MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN mm: 6.73 7.98 -- 3.0 4.8 5.44 0.56 0.71 0.56 0.71 2.16 2.41 0.66 1.37 0.43 in: (0.265) (0.314) -- (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** TIME TO RESISTANCE TRIPPED-STATE TRIP** VALUES POWER DISSIPATION** AMPS AMPS AMPS SECONDS AT OHMS WATTS AT AT 0°C AT 20°C AT 60°C 25°C, 5.2A AT 25°C 25°C HOLD TRIP HOLD TRIP HOLD TRIP MAX MIN MAX* TYP. 1.23 2.90 1.04 2.46 0.70 1.65 20 0.057 0.250 1.1 * Maximum resistance is measured both 1-hour post reflow and 1 hour post trip. ** Values specified were determined using PCB’s with 0.070” x 1.5-ounce copper traces. Reference Documents: PS300, PS400 Precedence: This specification takes precedence over documents referenced herein. Effectivity: Reference documents shall be the issue in effect on the date of invitation for bid. CAUTION: Operation beyond the rated voltage or current may result in rupture, electrical arcing or flame. M aterials Information ROHS Compliant ELV Compliant Pb-Free Halogen Free* HF * Halogen Free refers to: Br≤900ppm, Cl≤900ppm, Br+Cl≤1500ppm © 2016 Littelfuse,Inc. littelfuse.com Specifications are subject to change without notice. Revised July 26, 2016

PolySwitch® PRODUCT: ASMD125F PTC Devices DOCUMENT: SCD26581 REV LETTER: F Overcurrent Protection Device 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. © 2016 Littelfuse,Inc. littelfuse.com Specifications are subject to change without notice. Revised July 26, 2016