Series GRF300/GRF303
DPDT Non-Latching Electromechanical Relay
Signal Integrity up to 18Gbps
SURFACE MOUNT
HIGH REPEATABILITY,
BROADBAND TO-5 RELAYS
DPDT
SERIES
RELAY TYPE
GRF300
Repeatable, RF relay
GRF300D
Repeatable, RF relay with internal diode for coil transient suppression
GRF300DD
Repeatable, RF relay with internal diodes for coil transient suppression and polarity reversal
protection
GRF303
Sensitive, repeatable, RF relay
GRF303D
Sensitive, repeatable, RF relay with internal diode for coil transient suppression
GRF303DD
Sensitive, repeatable, RF relay with internal diodes for coil transient suppression and polarity
reversal protection
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-tocontact 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:
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
The Series GRF300D/GRF303D and GRF300DD/GRF303DD relays have
internal discrete silicon diodes for coil suppression and polarity reversal
protection.This hybrid package reduces required PC board floor space
by reducing the number of external components needed to drive the relay.
• High repeatability
• Broader bandwidth
• Metal enclosure for EMI shielding
ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
Temperature
(Ambient)
• High isolation between control and signal paths
• High resistance to ESD
Storage
–65°C to +125°C
Operating
INTERNAL CONSTRUCTION
–55°C to +85°C
Vibration
(General Note I)
10 g’s to 500 Hz
Shock
(General Note I)
30 g’s,
6ms half sine
Enclosure
UPPER STATIONARY
CONTACT
UNIFRAME
Hermetically sealed
Weight
MOVING CONTACT
GRF300
0.09 oz. (2.55g) max.
GRF303
ARMATURE
LOWER STATIONARY
CONTACT
0.16 oz. (4.5g) max.
© 2013 TELEDYNE RELAYS
GROUND SHIELD
(800) 284-7007 • www.teledynerelays.com
GRF300/GRF303 Page 1
GRF300GRF303 82013\Q3
