Description
The MA44781 device acts as a passive switch using silicon PIN diodes in a surface mount package. There are two sets of two PIN diode pairs constructed in opposing configurations. The package is sealed with a non-conductive epoxy resin and is suitable for surface mount applications.
The MA44781 device 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 doublet arrangement provides for more efficient RF power handling.

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