DESCRIPTION
The ultraminiature GRF300 and GRF303 relays are
designed to provide a practical surface-mount solution
with improved RF signal repeatability over the frequency
range. GRF300 and GRF303 relays feature a unique
ground shield that isolates and shields each lead to
ensure excellent contact-to-contact and pole-to-pole
isolation. The GRF300/GRF303 version with the improved
ground connections can push the performance up into the
10Gbps data rates for digital signal integrity applications.
This ground shield provides a ground interface that
results in improved high-frequency performance as well
as parametric repeatability. The GRF300 and GRF303
extend performance advantages over similar RF devices
that simply offer formed leads for surface mounting.
These relays are engineered for use in RF attenuator,
RF switch matrices, ATE and other applications that
require dependable high frequency signal fidelity and
performance.

The GRF300 and GRF303 feature:
• High repeatability
• Broader bandwidth
• Metal enclosure for EMI shielding
• High isolation between control and signal paths
• High resistance to ESD
The following unique construction features and manufacturing
techniques provide excellent robustness to environmental
extremes and overall high reliability:
• Uniframe motor design provides high magnetic efficiency
and mechanical rigidity
• Minimum mass components and welded construction
provide maximum resistance to shock and vibration
• Advanced cleaning techniques provide maximum
assurance of internal cleanliness
• Gold-plated precious metal alloy contacts ensure reliable
switching
• Hermetically sealed