1n643 Microchip

1N643, 1N662, 1N663 Screening in reference to Available SILICON SWITCHING DIODES MIL-PRF-19500 available DESCRIPTION This 1N643, 1N662 and 1N663 series of JEDEC registered switching/signal diodes are metallurgically bonded and hermetically sealed. These low capacitance diodes feature double-plug construction in a DO-35 package. They are particularly suited to applications where medium speed switching is required. Microsemi also offers a variety of other switching/signal diodes. Important: For the latest information, visit our website 1N643, 1N662, 1N663 MECHANICAL and PACKAGING CASE: Hermetically sealed glass case. TERMINALS: Tin/lead finished copper clad steel or RoHS compliant matte-tin finish available. MARKING: Alphanumeric. POLARITY: Cathode end is banded. TAPE & REEL option: Standard per EIA-296 (add TR suffix to part number). Consult factory for quantities. WEIGHT: 0.2 grams. See Package Dimensions on last page. PART NOMENCLATURE M 1N643 (e3) Reliability Level RoHS Compliance M (reference JAN) e3 = RoHS Compliant Blank = Commercial Blank = non-RoHS Compliant JEDEC type number (see Electrical Characteristics table) SYMBOLS & DEFINITIONS Symbol Definition I Forward Current. F Average Rectified Output Current: The Output Current averaged over a full cycle with a 50 Hz or 60 Hz sine-wave I O input and a 180 degree conduction angle. I Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature. R T Temperature Solder Pad: The maximum solder temperature that can be safely applied to the terminal. SP V Maximum Forward Voltage: The maximum forward voltage the device will exhibit at a specified current. F Working Peak Reverse Voltage: The maximum peak voltage that can be applied over the operating temperature range V RWM excluding all transient voltages (ref JESD282-B). Also sometimes known as PIV. Working Peak Voltage: The maximum peak voltage that can be applied over the operating temperature range. This is V WM also referred to as Standoff Voltage. Z Thermal Impedance: The thermal impedance junction to reference point. JX T4-LDS-0265, Rev. 1 (120919) 2012 Microsemi Corporation Page 2 of 5