MA45471

Dual Anti-Parallel PIN Diode for MRI

The MA45471 device acts as a passive switch using silicon PIN diodes in a surface mount non– magnetic package. The PIN diode pair are arranged in an anti-parallel configuration and encapsulated with a non conductive epoxy resin. The MA45471 is well suited for MRI Passive switching applications. The PIN diodes become a high Q, R-C network under small signal and behave as an effective passive rectifier or short circuit under high RF Signal to tune and de-tune the resonant MRI tank circuit. The anti-parallel arrangement provides for more efficient RF power handling.

Product Specifications

Part Number
MA45471
Description
Dual Anti-Parallel PIN Diode for MRI
Breakdown Voltage, Minimum(V)
75
Total Capacitance(pF)
3.300
Lifetime(nS)
200
CW Power Dissipation(W)
1.7
Package
ODS-1134
Package Category
Ceramic Surface Mount
Min Frequency(MHz)
10
Max Frequency(MHz)
1000

Features

  • Designed for MRI Applications
  • RoHS Compliant
  • SPC Process for Superior Parametric Repeatability
  • Non-Magnetic Surface Mount Package
  • Anti-Parallel Self Bias Arrangement
  • 260°C Reflow Compatible

Applications

  • ISM

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MA45471
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