1N4938, 1N4938-1, LL4938 Silicon Switching Diode WATERTOWN DIVISION P RODUCT P REVIEW KEY FEATURES DESCRIPTION When ordering Mil-PRF-19500/169 parts, use the number with the appropriate 1N4938-1 JAN, JTX or JTXV prefix. W W W. Microsemi .COM These silicon switching diodes are available in DO-35 glass packages and LL4938 Mini-Melf (DO-213AA). metallurgical bonded. available up to JANTXV for 1N4938-1 axial devices & 1N4938UR-1 MINI-MELF. These devices are used in generalpurpose applications where high voltage and switching speed are important. IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com ABSOLUTE MAXIMUM RATINGS AT 25º C (UNLESS OTHERWISE SPECIFIED) Rating Symbol Value Unit Peak Inverse Voltage@ 100µA PIV 200(Min.) Volts Average Rectified Current IA vg 100 mAmps Continuous Forward Current Peak Surge Current (t peak = 1 µsec.) Power Dissipation T L =50°C, L = 3/8” from body Storage Temperature Range IF dc 100 mAmps I peak 1.0 Amp P tot 500 mWatts TS t -65 to +200 ºC TOp -65 to +175 ºC Operating Temperature 1N4938 APPLICATIONS/BENEFITS APPLICATIONS/BENEFITS High Voltage and Switching Speed. LL4938 1N4938, 1N4938-1, LL4938 Copyright 2001 Rev. 0.02, 2001-05-15 Microsemi 580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235 Page 1 1N4938, 1N4938-1, LL4938 Silicon Switching Diode WATERTOWN DIVISION P RODUCT P REVIEW Parameter Symbol Forward Voltage Drop Reverse Leakage Current @150°C Reverse Leakage Current Capacitance Reverse Recovery Time Conditions Min Max Units VF 1F =100mA 1.0 V IR VR = 175 V 100 µA IR CT Tr r VR = 175 V VR = 0 V, F = 1 MHZ (See note 1) 100 5.0 50 nA PF ns W W W. Microsemi .COM ELECTRICAL PARAMETERS @ 25°C (unless otherwise specified) Note 1: Per Method 4031-B with IF = IR = 30 ma, RL = 100 Ohms, C = 3 Pf ELECTRICAL PRODUCT PRELIMINARY DATA – Information contained in this document is pre-production data, and is proprietary to Microsemi Corp. It may not be modified in any way without the express written consent of Microsemi Corp. Product referred to herein is not guaranteed to achieve preliminary or production status and product specifications, configurations, and availability may change at any time. Copyright 2001 Rev. 0.02, 2001-05-15 Microsemi 580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235 Page 2 1N4938, 1N4938-1, LL4938 Silicon Switching Diode WATERTOWN DIVISION P RODUCT P REVIEW W W W. Microsemi .COM 1N4938 DO-35 Glass Package (nominal dimensions) DATA PACKAGE LL4938 LL-34/35 MINI-MELF SMD Package (DO-213AA) (nominal dimensions) Copyright 2001 Rev. 0.02, 2001-05-15 Microsemi 580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235 Page 3 1N4938, 1N4938-1, LL4938 Silicon Switching Diode WATERTOWN DIVISION P RODUCT P REVIEW W W W. Microsemi .COM NOTES: NOTES Copyright 2001 Rev. 0.02, 2001-05-15 Microsemi 580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235 Page 4