Series GRF121/GRF121R
SPDT Magnetic-Latching
DC-18GHz RF Relay
40Gbps
SURFACE MOUNT
HIGH REPEATABILITY
SPDT, BROADBAND 18 GHZ
40GBPS
MAGNETIC-LATCHING RF RELAY
MA
AY
SERIES
RELAY TYPE
GRF121
GRF121R
RF Magnetic-Latching, SPDT, Common Coil Negative, Surface Mount Relay
RF Magnetic-Latching, SPDT, Common Coil Positive, Surface Mount Relay
DESCRIPTION
The ultraminiature Series GRF121/GRF121R is de-
signed to provide a practical surface-mount switching
solution with RF performance and repeatability
to 18GHz. The GRF121/GRF121R improves on
Teledyne Relays’ heritage of miniature RF relays by
incorporating a precision transmission line structure
in the internal construction of the contact system.
GRF121/GRF121R relays feature a unique ground
shield to facilitate surface mounting and to extend the
frequency range when compared to through-hole solu-
tions.
These relays are designed for use in RF attenuators,
RF switch matrices, high frequency spread
spectrum radios, ATE, and other applications that
require dependable high frequency signal
fi
delity
and performance. The magnetic-latching GRF121/
GRF121R is suitable for applications where power
budget is restricted. The relays can be operated with a
short duration pulse. After the contacts have trans-
ferred, no external holding power is required.
The GRF121/GRF121R features:
• High Repeatability
• Wide Bandwidth Performance
• Higher Isolation Between Each Signal Path
• Metal Enclosure for EMI Shielding
• High Isolation Between Control and Signal Paths
• High Resistance to ESD
The unique construction features and manufacturing
techniques provide excellent robustness for
environmental extremes and overall reliability:
• 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
• Hermetic Seal
• RoHS Compliant
ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
Temperature
(Ambient)
Vibration
(General Note 3)
Shock
(General Note 3)
Enclosure
Storage
Operating
–55°C to +125°C
–55°C to +85°C
10 g’s 10 to 3000 Hz
30 g’s,
6ms half sine
Hermetically sealed
Teledyne Part Numbering System for GRF121/GRF121R
GRF121
Relay Series
GRF121
GRF121R
-
12
Coil Voltage
5 = 5Vdc
12 = 12Vdc
© 2017 TELEDYNE RELAYS
(800) 284-7007 • www.teledynerelays.com
GRF121/GRF121R Page 1
GRF121\GRF121R\032017\Q1
Series GRF121/GRF121R
SPDT Magnetic-Latching
DC-18GHz RF Relay
40Gbps
SERIES GRF121/GRF121R
GENERAL ELECTRICAL SPECIFICATIONS (@ 25
°C)
Contact Arrangement
Rated Duty
Contact Load Rating
Contact Life Rating
Coil Operating Power
Switching Time
Minimum Operate Pulse
Insulation Resistance
Dielectric Strength
Propagation Delay
1 Form C (SPDT), with open contact grounded to case
Continuous
Resistive: 0.25A @ 28Vdc
3,000,000 cycles typical at low level
GRF121-5/GRF121R-5: 410mW typical @ nominal rated voltage
GRF121-12/GRF121R-12: 290mW typical @ nominal rated voltage
7.0 msec. max. (2 msec operate time, 5 msec bounce time)
6.0 msec width at rated voltage
1,000MΩ min. between mutually isolated terminals
350 Vrms (60Hz) @ Atmospheric Pressure
54-60 ps typical
DETAILED ELECTRICAL SPECIFICATIONS (@25°C)
BASE PART NUMBERS
Coil Voltage, Nominal (Vdc)
Coil Resistance (Ohms ±20%)
Pick-up Voltage, Max (Vdc) (General Note 5)
GRF121-5/GRF121R-5
GRF121-12/GRF121R-12
5.0
61
4.3
12.0
500
10.4
GENERAL NOTES
1.
2.
3.
4.
5.
6.
Characteristics shown as “typical” are based on available data and are best estimates. No ongoing verificatin tests are performed.
Unless otherwise specified, parameters are initial values.
Relay contacts will exhibit no chatter in excess of 10
μsec
or transfer in excess of 1
μsec.
Relay leads are gold plated with a typical thickness of 25-40
μin.
Ground shield is gold plated with a typical thickness of 10-30μin.
Operate voltage at less than the specified minimum may result in unreliable operation.
Relay temperature during soldering shall not exceed 250°C, and reflow temperature shall not exceed 250°C, 3 passes, 1 minute each.
GRF121/GRF121R Page 2
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2017 TELEDYNE RELAYS
GRF121\GRF121R\032017\Q1
Series GRF121/GRF121R
SPDT Magnetic-Latching
DC-18GHz RF Relay
40Gbps
SERIES GRF121/GRF121R
TYPICAL RF CHARACTERISTICS (See RF Notes)
Insertion Loss (RF Note 3)
Insertion Loss (dB)
Frequency (MHz)
VSWR (RF Note 3)
VSWR
Frequency (MHz)
© 2017 TELEDYNE RELAYS
(800) 284-7007 • www.teledynerelays.com
GRF121/GRF121R Page 3
GRF121\GRF121R\032017\Q1
Series GRF121/GRF121R
SPDT Magnetic-Latching
DC-18GHz RF Relay
40Gbps
SERIES GRF121/GRF121
TYPICAL RF CHARACTERISTICS (See RF Notes)
Isolation (RF Note 4)
Isolation (dB)
Frequency (MHz)
GRF121/GRF121R Test Evaluation Board
RF NOTES
1.
a.
Fixture: .031" copper clad, gold plated, reinforced Rogers Corporation 4350B High Frequency Laminate with SMA connectors.
b.
Room ambient temperature.
c.
Unused Terminals were terminated with 50-ohm load.
d.
Contact signal level: –10 dBm.
e.
No. of test samples: 2.
Data presented herein represents typical characteristics and is not intended for use as specification limits.
Data is the average from readings taken on all closed contacts.
Data is the average from readings taken on all open contacts.
Test fixture effect de-embedded from frequency response data.
Test conditions:
2.
3.
4.
5.
GRF121/GRF121R Page 4
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2017 TELEDYNE RELAYS
GRF121\GRF121R\032017\Q1
Series GRF121/GRF121R
SPDT Magnetic-Latching
DC-18GHz RF Relay
40Gbps
SERIES GRF121/GRF121R
TYPICAL SIGNAL INTEGRITY CHARACTERISTICS
GRF121/GRF121R @ 16Gbps
Reference @ 16Gbps
Bit Rate
16 Gbps
Eye Height
203 mV
Eye Width
49.92 ps
Jitter
P-P
4.99 ps
GRF121/GRF121R @ 28Gbps
GRF121 @ 28Gbps
Reference @ 28Gbps
Reference @ 28Gbps
Bit Rate
28 Gbps
Eye Height
139.2 mV
Eye Width
21.6 ps
Jitter
P-P
5.89 ps
GRF121/GRF121R @ 40Gbps
GRF121 @ 40Gbps
Reference @ 40Gbps
Reference @ 40Gbps
Bit Rate
40 Gbps
•
•
•
•
•
•
Eye Height
95 mV
Eye Width
13.34 ps
Jitter
P-P
8.73 ps
Pattern Generator Seetings
40 Gbps Random Pulse Pattern Generator
2
31
- 1 PRBS signal
PRBS output of 500 mV
P-P
(nominal)
RF PCB effect (negligible) not removed from measurement
Data shown is typical of both contacts.
(800) 284-7007 • www.teledynerelays.com
GRF121/GRF121R Page 5
GRF121\GRF121R\032017\Q1
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