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| UMX5101 ULTRA LOW MAGNETIC MOMENT PIN DIODE FOR MRI APPLICATIONS RoHS COMPLIANT DESCRIPTION The UMX5101 PIN diode series was designed to provide ultra low magnetic PIN diodes for in bore surface coil applications associated with higher field strength (3T and greater) MR scanners. These PIN diodes produce the minimum artifacts (magnetic field distortions) available in the industry, today. The diodes have been tested in magnetic fields of 7 Tesla. KEY FEATURES www.MICROSEMI.com Ultra low magnetic construction SOGO passivated chip Thermally matched configuration RoHS compliant 1 The UMX5101 PIN diodes have a magnetic moment at 7 T of 2E-8 (J/T). The diodes are offered in a surface mount package. The SM package utilizes a square end cap to mark the cathode. The anode is round. The fully SOGO passivated PIN diode chip is full face metallurgically bonded to high conductive pins for lower thermal and electrical resistances. The PIN diodes feature low forward bias resistance and high zero bias impedance. The UMX5101 PIN diodes are characterized at 64, 128, and 300 MHz. The UMX5101 meets RoHS requirements per EU Directive 2002/95/EC. Low capacitance at 0 V bias Low conductance at 0 V bias Metallurgical bond Fused-in-glass construction ABSOLUTE MAXIMUM RATINGS AT 25 C (UNLESS OTHERWISE SPECIFIED) Rating Symbol Value Unit Non cavity design Available in surface mount package. Compatible with automatic insertion equipment V 1- These devices are supplied with V C C Silver terminations. Other terminal finishes may be available on request. Consult factory for details. Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage RMS Reverse Voltage Storage Temperature Operating Temperature Non-Repetitive Peak VRRM VRWM VR V R (RMS) T stg T op 100 100 100 75 -65 to +175 -65 to +150 THERMAL CHARACTERISTICS AT 25 C (UNLESS OTHERWISE SPECIFIED) Thermal Resistance UMX5101SM 20 C/Watt APPLICATIONS/BENEFITS High B Field (3T+) in bore APPLICATIONS: Active or semi-active (not passive) MR blocking circuits MR detuning circuits MR disable circuits MR receiver protector circuits IMPORTANT:Forthemostcurrentdata,consultMICROSEMI's website: www.MICROSEMI.com UMX 5101 U MX 5101 Copyright 2006 Rev. A, 2006-12-28 Microsemi Lowell Division 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 1 UMX5101 ULTRA LOW MAGNETIC MOMENT PIN DIODE FOR MRI APPLICATIONS RoHS COMPLIANT ELECTRICAL PARAMETERS @ 25 (UNLESS OTHERWISE SPECIFIED) C www.MICROSEMI.com Parameter Forward Voltage (Note 1) Reverse Break Down Voltage Reverse Current Inductance Symbol VF VBR IR Ls Conditions IF = 100 mA I R = 10 uA VR = 100 V Min Typ. 0.82 Max 1.0 Units V V 100 10 800 uA pH Magnetic moment @ 7T m @ 1T 2E-8 J/T 5E-8 -2.7E-11 1.2E-9 -2.4E-7 1.0E-5 2.5 1.0 10 800 30 k 1000 0.8 2 2.5 1.0 us 3.0 1.2 pF Mass Susceptibility @ 7T @ 1T m /kg 3 Volume Susceptibility >1T to 7T <1 T SI Capacitance CT VR = 0 V, F = 1 MHz VR = 100 V, F = 1 MHz VR = 0 V, F = 64 MHz Parallel Resistance Series Resistance Lifetime RP VR = 30 V, F = 64 MHz RS If = 100 mA F = 64 MHz If = 10 mA EL ECTRI CALS E LECT RICA LS Copyright 2006 Rev. A, 2006-12-28 Microsemi Lowell Division 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 2 UMX5101 ULTRA LOW MAGNETIC MOMENT PIN DIODE FOR MRI APPLICATIONS RoHS COMPLIANT MAGNETIC MOMENT VS F IELD C - V CURVES www.MICROSEMI.com RP - PARALLEL R ESISTANCE RS VS IF G RA PHS GR APHS G RA PHS GR APHS Copyright 2006 Rev. A, 2006-12-28 Microsemi Lowell Division 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 3 UMX5101 ULTRA LOW MAGNETIC MOMENT PIN DIODE FOR MRI APPLICATIONS RoHS COMPLIANT VF VS IF SM STYLE SOLDER FOOTPR INT www.MICROSEMI.com NOTES: 1. These dimensions will match the terminals and provide for additional solder fillets at the outboard ends at least as wide as the terminals themselves, assuming accuracy of device placement within .005 inches. If the mounting method chosen requires use of an adhesive separate from the solder compound, a round (or square) spot of cement as shown should be centrally located. 2. "SM" STYLE PACKAGE O UTLINE Dimensions shown are in inches G RA PH S /MEC HA NI C AL GR A PHS /M ECH AN I CA L DIMENSIONS SHOWN ARE IN INCHES Copyright 2006 Rev. A, 2006-12-28 Microsemi Lowell Division 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 4 UMX5101 ULTRA LOW MAGNETIC MOMENT PIN DIODE FOR MRI APPLICATIONS RoHS COMPLIANT www.MICROSEMI.com NOTES: N OTES NO TES Copyright 2006 Rev. A, 2006-12-28 Microsemi Lowell Division 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 5 |
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