1N4448 SENSITRON SEMICONDUCTOR FAST SWITCHING DIODE Data Sheet 2767, Rev. - Features ! Fast Switching Speed ! ! ! Glass Package Version for High Reliability High Conductance Available in Both Through-Hole and Surface Mount Versions A B A C D 1N4448 Mechanical Data ! ! ! ! ! Case: DO-35 Terminals: Plated Leads Solderable per MIL-STD-202, Method 208 Polarity: Cathode Band Weight: DO-35 0.13 grams Marking: Cathode Band Only Dim A B C D Min DO-35 Max Min 25.40 -- -- 4.00 -- 0.60 -- 2.00 in mm Max 1.000 -- -- 0.157 -- 0.024 -- 0.079 In inch Maximum Ratings @TA=25C unless otherwise specified Characteristic Symbol Value Unit VRRM VRWM VR 75 V Forward Continuous Current (Note 1) IFM 300 mA Rectified Current (Average), Half Wave Rectification with Resistive Load and f 50MHz (Note 1) IO 150 mA IFSM 500 2000 mA Pd 500 2.85 mW mW/C RJA 300 K/W Tj, TSTG -65 to +200 C Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Non-Repetitive Peak Forward Surge Current @ t = 1.0s @ t = 1.0s Power Dissipation (Note 1) Derate Above 25C Thermal Resistance, Junction to Ambient Air (Note 1) Operating and Storage Temperature Range * 221 West Industry Court ! Deer Park, NY 11729-4681 ! (631) 586-7600 FAX (631) 242-9798 * * World Wide Web Site - http://www.sensitron.com * E-Mail Address - sales@sensitron.com * SENSITRON SEMICONDUCTOR 1N4448 FAST SWITCHING DIODE Data Sheet 2767, Rev. - Electrical Characteristics Characteristic @TA=25C unless otherwise specified Symbol Min Max Unit VFM -- 1.0 V IRM -- 25 5.0 50 100 nA A A nA Capacitance Cj -- 4.0 pF VR = 0, f = 1.0MHz Reverse Recovery Time trr -- 4.0 ns IF = 10mA to IR = 1.0mA VR = 6.0V, RL = 100 Maximum Forward Voltage Maximum Peak Reverse Current Test Condition IF = 10mA VR = 20V VR = 75V VR = 20V, Tj = 150C VR = 75V, Tj = 150C Note: 1. Diode on Ceramic Substrate 10mm x 8mm x 0.7mm. 10,000 1000 100 1000 10 IR, LEAKAGE CURRENT (nA) IF, INSTANTANEOUS FORWARD CURRENT (mA) 1.0 0.1 100 10 VR = 20V 1 0.01 0 1 2 VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 1 Forward Characteristics 0 100 200 Tj, JUNCTION TEMPERATURE (C) Fig. 2 Leakage Current vs Junction Temperature * 221 West Industry Court ! Deer Park, NY 11729-4681 ! (631) 586-7600 FAX (631) 242-9798 * * World Wide Web Site - http://www.sensitron.com * E-Mail Address - sales@sensitron.com * SENSITRON SEMICONDUCTOR TECHNICAL DATA DISCLAIMER: 1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest version of the datasheet(s). 2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment, medical equipment, and safety equipment), safety should be ensured by using semiconductor devices that feature assured safety or by means of users' fail-safe precautions or other arrangement. 3- In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during operation of the user's units according to the datasheet(s). Sensitron Semiconductor assumes no responsibility for any intellectual property claims or any other problems that may result from applications of information, products or circuits described in the datasheets. 4- In no event shall Sensitron Semiconductor be liable for any failure in a semiconductor device or any secondary damage resulting from use at a value exceeding the absolute maximum rating. 5- No license is granted by the datasheet(s) under any patents or other rights of any third party or Sensitron Semiconductor. 6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed written permission of Sensitron Semiconductor. 7- The products (technologies) described in the datasheet(s) are not to be provided to any party whose purpose in their application will hinder maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third party. When exporting these products (technologies), the necessary procedures are to be taken in accordance with related laws and regulations. * 221 West Industry Court Deer Park, NY 11729-4681 (631) 586-7600 FAX (631) 242-9798 * * World Wide Web - http://www.sensitron.com * E-Mail Address - sales@sensitron.com *