UMX1089 - Microsemi

UMX1089 LOW LOSS MRI PROTECTION DIODES

The UMX1089 diode series was designed to protect MRI receivers from high RF energy fields including long RF pulses and RF spike pulses present in most MRI machines. The UMX1089 acts as a passive protector (limiter) for the MRI receiver. No forward bias voltage is required to turn on the diode. It is self-biased by the RF transmitter pulse power. A switch dri.

Features

 Available in surface mount package.
 Metallurgical bond
 Passivated chip
 Low magnetic construction
 Non cavity design
 Optimized for low loss performance
 Low capacitance at 0V bias
 Low conductance at 0V bias
 Compatible with automatic insertion equipment
 RoHS Compliant 1 Note 1: RoHS compliant versions are supplied with a matte Tin finish or Silver finish. RoHS part numbers are: UMX1089B
  – matte Tin finish UMX1089SM
  – Silver finish Pb/Sn terminal plating available. Consult factory for details. APPLICATION/BENEFITS
 MRI Receiver Protection
 Body Coil Isolation ABSOLUTE MAXIMUM.