USD520, USD520HR2, USD535, USD535HR2, USD545, USD545HR2, USD550, USD550HR2 POWER SCHOTTKY RECTIFIERS TM SCOTTSDALE DIVISION DO-5 This series of 75 Amp rated average forward current series of Schottky barrier power rectifiers in 20 through 50 volt selections is ideally suited for output rectifiers and catch diodes in low voltage power supplies. The Microsemi high conductivity design, using a heavy copper top post and 4point crimp, ensures cool thermal operation and low dynamic impedance with applicable heat sinking for peak repetitive forward currents up to 150 Amps at 50% duty cycle. This rugged DO-5 hermetically sealed design absorbs stress that can otherwise damage glass-to-metal seals during installation and operation. It is also available in a flexible top lead as described herein. WWW. Microsemi . C O M APPEARANCE DESCRIPTION IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com APPLICATIONS / BENEFITS FEATURES • • • • • • • o • Very Low Forward Voltage (0.6V at 60A, 125 C) Low Recovered Charge Rugged Package Design (DO-5) Low Reverse Current (<50mA at rated VR at o 125 C) Hermetically sealed High Reliability Screening Option with HR2 Suffix (ie. USD520HR2) Available with Flexible Top Lead with F suffix to part number • • • • • • Output Schottky Rectifiers for Low Voltage Power Supplies Catch Diodes for Low Voltage Power Supplies High Efficiency for Low Voltage Supplies Robust Construction with Heavy Copper Top Post and Four-Point Crimp High Peak Operating Temperature o Low Thermal Resistance (0.8 C/W) High Surge Current (1000A) ABSOLUTE MAXIMUM RATINGS MECHANICAL AND PACKAGING • • DC Blocking Voltage VR: Same as VRWM (see below) • Peak Repetitive Forward Current IFRM: 150 A o @ TC = 115 C (Rated VR, Sq Wave, 20 kHz, 50 % Duty Cycle) • • Average Forward Current, IF(AV) : 75 A @ TC = 115 C Non-Repetitive Peak Surge Current (8.3 ms), IFSM : 1000 A • • Peak Reverse Transient Current, IRM: 2 A o o Storage Temperature Range, TSTG: -55 C to +200 C • • Operating Junction Temperature TJ(PK) : 175 C o Thermal Resistance, Junction to Case, R?JC: 0.8 C/W • • • • • • • o o Industry Standard DO-5 (DO-203AB) Package with 11/16 inch Hex and 1/4-28 Threaded Stud Hermetically Sealed Metal and Glass Case Body Metal Surface Finish: Tin Plated Weight: 16 grams (approximate) Maximum Unlubricated Stud Torque: 30 inch pounds Angular Orientation of Terminal Undefined Marking: Part Number and Logo Flexible Top Lead Option: Add an “F” Suffix to Part Number (see mechanical specifications on page 3) ELECTRICAL CHARACTERISTICS (TCASE = 25oC) USD520 USD520HR2 USD535 USD535HR2 USD545 USD545HR2 USD550 USD550HR2 * Duty Cycle = 1% Copyright 2003 02-03-2003 REV 0 20 V 35 V 45 V 50 V Non Repetitive Peak Reverse Voltage VRSM @ IRM 24 V 42 V 54 V 60 V Maximum Forward Voltage VF @10 A, o 25 C 0.50 V Maximum Reverse Current (pulsed)* IR @ VRWM @60 A, o 25 C @60 A, o 125 C 0.68 V 0.60 V or 0.63 V with flexible lead option @TC = o 25 C 20 mA @TC = o 125 C 50 50 50 75 mA mA mA mA Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Maximum Capacitance @V R = 5.0 V 4000 pF Page 1 USD520 thru USD550 Microsemi Part Number Working Peak Reverse Voltage VRWM USD520, USD520HR2, USD535, USD535HR2, USD545, USD545HR2, USD550, USD550HR2 POWER SCHOTTKY RECTIFIERS TM SCOTTSDALE DIVISION WWW. Microsemi . C O M OUTLINE AND CIRCUIT OPTIONAL HIGH RELIABILITY (HR2) SCREENING 1. High Temperature 2. Temperature Cycle 3. Hermetic Seal a. Fine Leak b. Gross Leak 4. Thermal Impedance 5. Interim Electrical Parameters 6. High Temperature Reverse Blocking 7. Final Electrical Parameters MIL-STD-750 METHOD 1032 1051 USD520 thru USD550 SCREEN CONDITIONS o 24 Hours @ TA = 150 C o F, 20 Cycles, -55 to +150 C. No dwell required @ o 25 C, T>10 min. @ extremes 1071 H, Helium C, Liquid 3101 GO/NO GO As Applicable GO/NO GO As Applicable T=48 hrs, Tc=125°C with applicable bias conditions As Applicable The following tests are performed on 100% of the devices. Copyright 2003 02-03-2003 REV 0 Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 2 USD520, USD520HR2, USD535, USD535HR2, USD545, USD545HR2, USD550, USD550HR2 POWER SCHOTTKY RECTIFIERS TM SCOTTSDALE DIVISION Notes: 1. 2. 3. 4. A B C D E F G H J K L M N Cathode is stud Maximum unlubricated stud torque: 30 inch pounds. Angular Orientation of terminal is undefined. o Maximum tension (90 ) anode terminal 15 pounds for 30 seconds INCHES .225 +/- .005 .060 MIN. .156 +/- .020 .156 MIN. FLAT .667 DIA. MAX .090 MAX .677 +/- .010 .375 MAX. .140 MIN. DIA. 1.000 MAX. .450 MAX. .438 +/- .015 .078 MAX. WWW. Microsemi . C O M MECHANICAL SPECIFICATIONS MILLIMETERS 5.72 +/- 0.13 1.52 MIN. 3.96 +/- 0.51 3.96 MIN. FLAT 16.94 DIA. MAX. 2.29 MAX. 17.20 +/- 0.25 9.53 MAX. 3.56 MIN. DIA. 25.40 MAX. 11.43 MAX. 11.13 +/- 0.38 1.98 MAX. FLEXIBLE TOP LEAD (OPTIONAL) Add an “F” suffix to Part Number. M N P Q R S T INCHES .718 MAX 4.50 +/- .250 .525 MAX. .675 +/- .035 .205 +/- .005 .075 +/- .010 1.125 MAX. MILLIMETERS 18.24 MAX 114.3 +/- 6.35 13.23 MAX. 17.15 +/- 0.89 5.21 +/- 0.13 1.91 +/- 0.25 28.58 MAX. o *To 125 C (Ambient) Note: Consult Factory for Non-standard Lead Lengths. DO-5 with Flexible Lead USD520 thru USD550 Copyright 2003 02-03-2003 REV 0 Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 3