UMX5601_10 Datasheet, PDF (1/4 Pages) Microsemi Corporation – ULTRA LOW MAGNETIC MOMENT PIN DIODE FOR MRI APPLICATIONS

UMX5601
ULTRA LOW MAGNETIC MOMENT PIN
DIODE FOR MRI APPLICATIONS
DESCRIPTION
The UMX5601^TM 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.
The UMX5601 PIN diodes have a magnetic moment at 7 T of 4E-8 (J/T).
The diodes are offered in a surface mount package. The SM package utilizes a
round end cap to mark the anode. The cathode is square. The fully passivated PIN
diode chip is full face metallurgically bonded to shortened high conductive pins for
lower thermal and electrical resistances. The PIN diodes feature low forward bias
resistance and high zero bias impedance. The UMX5601 PIN diodes are
characterized at 64, 128, and 300 MHz. The UMX5601SM meets RoHS requirements
per EU Directive 2002/95/EC.
IMPORTANT: For the most current data, consult our website: www.MICROSEMI.com
ABSOLUTE MAXIMUM RATINGS AT 25º C
(UNLESS OTHERWISE SPECIFIED)
Rating
Symbol
Value
Unit
Peak Repetitive Reverse Voltage
V_RRM
100
Working Peak Reverse Voltage
V_RWM
100
V
DC Blocking Voltage
V_R
100
RMS Reverse Voltage
Storage Temperature
V _{R (RMS)}
75
V
T stg -65 to +175
ºC
Operating Temperature Non-Repetitive Peak T op
-65 to +150
ºC
RoHS COMPLIANT
KEY FEATURES
 Ultra low magnetic construction
 SOGO passivated chip
 Thermally matched configuration
 RoHS compliant ¹
 Low capacitance at 0 V bias
 Low conductance at 0 V bias
 Metallurgical bond
 Fused-in-glass construction
 Non cavity design
 Available in surface mount
package.
 Compatible with automatic
insertion equipment
1- These devices are supplied with
Silver terminations. Other terminal
finishes may be available on request.
Consult factory for details.
THERMAL CHARACTERISTICS
(UNLESS OTHERWISE SPECIFIED)
Thermal Resistance
UMX5601SM
Symbol
θ
Value
2
Unit
ºC/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
Copyright  2005
Rev: 2010-02-03
Microsemi
Microwave Products
75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: [phone]
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