UMA5817, UMA5818, and UMA5819 ULTRAMITE™ SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS SCOTTSDALE DIVISION APPEARANCE The UMA5817 thru UMA5819 UltraMite™ series offers small efficient surface mount packaging with the same electrical features as the popular 1N5817, 1N5818, and 1N5819 Schottky rectifiers. It provides the same size footprint as other small surface mount DO-214AC or BA package options except with a much lower profile height. Its configuration in a “2010 MELF” style robust package design prevents lead damage to terminals and also minimizes parasitics by eliminating internal wire bonds and providing very short internal conduction paths. UltraMite™ IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com FEATURES • • • • • • APPLICATIONS / BENEFITS • • Plastic package has Underwriters Laboratory Flammability classification 94V-0 Metal to silicon rectifier, majority carrier conduction High current capability, low VF Built-in stress relief with similar COE as PC boards Optional Lead-Free design/finish (UMAF5817-19) Options for screening in accordance with MIL-PRF19500/586 for JAN, JANTX, JANTXV, and JANS are available by adding MQ, MX, MV, or MSP prefixes respectively to part numbers. For example, designate a MXUMAJ5819 for a JANTX screen. • • • • For surface mount applications For use in low-voltage high-frequency switching power supplies, inverters, free wheeling, and polarity protection applications Low power loss, High efficiency Low inductive parasitics for minimal Ldi/dt effects Fits same small PCB footprints as popular “SMAJxxx” or “SMBJxxx” Schottky devices in JEDEC outlines DO-214AC (or BA) and DO-214AA respectively except with much lower height profile Robust 2010 MELF style package configuration for pick-and-place handling MAXIMUM RATINGS • • • • • • WWW . Microsemi .C OM DESCRIPTION MECHANICAL AND PACKAGING • Operating junction and storage temperature range (TJ and TSTG): -50 oC to +125oC Forward average rectified current (IO) @TC=75oC: 1.0 Amp Forward surge current (IFSM) 8.3 ms single half-sine waveform superimposed on rated load (JEDEC Method): 25 Amps Typical thermal resistance (RθJL): 50 oC/W Typical junction capacitance (CJ) at 1.0 MHz and VR of 5.0 Volts: 65 pF for UMA5817, and 46 pF for UMA5818 and UMA5819 • FRP substrate material and epoxy under-fill package meeting UL94V-0 Terminals solder plated (solderable per MIL-STD750, Method 2026) • • • • Body marked with 5817, 5818, or 5819 • See package dimensions on last page Cathode designated with band Weight: 0.020 grams Tape & Reel packaging per EIA-481-2 with 12 mm tape and 3000 units/reel (7 inch reel) or 10,000 units/reel (13 inch reel) Solder temperatures: 260 ºC for 10 s (maximum) Part Number UMA5817 UMA5818 UMA5819 Working Peak Reverse Voltage VRWM Volts 20 30 40 Maximum RMS Voltage; VRMS Volts 14 21 28 Maximum Peak Repetitive Voltage; VRRM Volts 20 30 40 unless specified otherwise Maximum Forward Voltage at 1.0A (note 1) VF Volts 0.45 0.55 0.60 Maximum Forward Voltage at 3.0A (note 1) VF Volts 0.75 0.875 0.90 Maximum dc reverse current @ VRWM IR mA 0.5 0.5 0.5 Maximum dc reverse current @ o VRWM ,100 C IR mA 10 10 10 NOTES: (1) Pulse test with PW=300 µsec, 1% duty cycle. Copyright 2002 10-16-03 REV B Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 1 UMA5817 thru UMA5819 ELECTRICAL CHARACTERISTICS @ 25oC UMA5817, UMA5818, and UMA5819 SCOTTSDALE DIVISION ULTRAMITE™ SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS WWW . Microsemi .C OM GRAPHS UMA5818 UMA5817 UMA5819 o TJ = 25 C UMA5817 thru UMA5819 Copyright 2002 10-16-03 REV B Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 2 UMA5817, UMA5818, and UMA5819 ULTRAMITE™ SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS SCOTTSDALE DIVISION WWW . Microsemi .C OM UMA5817 UMA5818 UMA5819 PACKAGE DIMENSIONS & PAD LAYOUT PAD LAYOUT DIM A B C D E F INCHES MAX MIN .173 .181 .083 .091 .033 .045 .033 .045 .002 .002 .020 .020 MAX 4.40 2.10 .85 .85 .05 .50 PAD di MM MAX 4.60 2.30 1.15 1.15 .05 .50 A B C INCHES .245 .075 .103 mm 6.22 1.90 2.62 UMA5817 thru UMA5819 Copyright 2002 10-16-03 REV B Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 3