RF & MICROWAVE
SURFACE MOUNT,
MAGNETIC-LATCHING
BROADBAND
RF RELAYS
DPDT
DESCRIPTION
The Series GRF180 relay is the first hermetically sealed,
ultraminiature RF relay designed from inception for surface
mount applications. This magnetic-latching relay features
extremely low internal circuit losses for exceptional time and
frequency domain response characteristics through and
beyond the UHF spectrum and into the S band. The GRF180
features a unique ground shield that isolates and shields
each lead to ensure excellent contact-to-contact and pole-to-
pole isolation. This ground shield provides a ground interface
that results in improved high-frequency performance as well
as parametric repeatability. The GRF180 extends
performance advantages over similar RF devices that simply
offer formed leads for surface mounting.
The GRF180 is robust to shock, vibration and temperature
extremes for use in space applications and other demanding
environments. It is engineered for use in RF attenuators, RF
SERIES
GRF180
switch matrices, automated test equipment, spacecraft and
other applications that require dependable high-frequency
signal fidelity and performance. Its low profile and .100" grid
spaced terminals make the GRF180 ideal for applications
where extreme packaging density and/or close PC board
spacing are required.
Unique features and manufacturing techniques include:
• Positive mounting means to RF ground plane.
• Unique uniframe design provides high magnetic efficiency
and mechanical rigidity.
• High force/mass ratios for resistance to shock and
vibration.
• Advanced cleaning techniques provide maximum
assurance of internal cleanliness.
• Gold-plated precious metal alloy contacts ensure reliable dc
and RF signal switching, as well as low and stable insertion
loss.
• Robust to high temperature solder reflow environments.
PRINCIPLE OF OPERATION
PERMANENT MAGNET
MAGNETIC CIRCUIT A
Energizing Coil A produces a
SOFT IRON CORE A
MAGNETIC CIRCUIT B
magnetic field opposing the
SOFT IRON FRAME
magnetic
field
of
the
permanent magnet in Circuit
COIL A
COIL B
A. As the net holding force
decreases, the attractive
force in the air gap of Circuit
AIR GAP
B, which also results from the
STATIONARY
CONTACT
magnetic
field
of
the
permanent magnet, becomes
great enough to break the
MOVING
ARMATURE
CONTACT
armature free of Core A, and
snap it into a closed position against Core B. The armature remains in this
position upon removal of power from Coil A, but will snap back into position
A upon energizing Coil B. Since operation depends upon cancellation of a
magnetic field, it is necessary to apply the correct polarity to the relay coils
as indicated on the relay schematic.
ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
–65°C to +125°C
Temperature Storage
(Ambient)
Operating
–55°C to +85°C
Vibration
(General Note 1)
Shock
(General Note 1)
Enclosure
Weight
30 g’s to 500 Hz
100 g’s,
6 msec, half-sine
Hermetically sealed
0.10 oz. (2.9g) max.
When latching relays are installed in equipment, the latch and reset coils
should not be pulsed simultaneously. Coils should not be pulsed with less
than rated coil voltage and the pulse width should be a minimum of three
times the specified operate time of the relay. If these conditions are not
followed, it is possible for the relay to be in the magnetic neutral position.
©2003 TELEDYNE RELAYS
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
GRF180 Page
GRF180/1203/Q1
RF & MICROWAVE
SERIES GRF180
TYPICAL RF CHARACTERISTICS
(See RF Notes
)
Isolation Contact to Contact (RF Note 4)
0
-10
-20
Isolation (dB)
Isolation (dB)
Isolation Pole to Pole (RF Note 5)
0
-10
-20
-30
-40
-50
-60
-70
-30
-40
-50
-60
-70
0
1000
2000
3000
Frequency (MHz)
4000
5000
6000
0
1000
2000
3000
Frequency (MHz)
4000
5000
6000
Insertion Loss (RF Note 6)
0
-0.2
-0.4
Insertion Loss (dB)
VSWR (RF Note 6)
3
2.8
2.6
2.4
VSWR
-0.6
-0.8
-1
-1.2
-1.4
-1.6
-1.8
0
1000
2000
3000
Frequency (MHz)
4000
5000
6000
2.2
2
1.8
1.6
1.4
1.2
1
0
1000
2000
3000
Frequency (MHz)
4000
5000
6000
Time Domain Reponse
1.1
0.9
0.7
Volt
90%
37ps reference
0.5
0.3
0.1
-0.1
-100
67ps propagation delay time
60ps pulse rise time
10%
0
100
200
300
400
Time, ps
500
600
700
800
900
RF NOTES
1. Test conditions:
a.
Fixture: .031" copper clad, reinforced PTFE, RT/duroid
®
6002 with SMA connectors. (RT/duroid
®
is a
registered trademark of Rogers Corporation.)
b.
RF ground shield is soldered to PCB RF ground plane.
c.
Room ambient temperature.
d.
Terminals not tested were terminated with 50-ohm load.
e.
Contact signal level: –10 dBm.
f.
No. of test samples: 3.
Data presented herein represents typical characteristics and is not intended for use as specification limits.
Data is per pole, except for pole-to-pole data.
Data is the average from readings taken on all open contacts.
Data is the average from readings taken on poles after Coil A is energized then Coil B is energized.
Data is the average from readings taken on all closed contacts.
Test fixture effect de-embedded from frequency and time response data.
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
©2003 TELEDYNE RELAYS
GRF180/1203/Q1
2.
3.
4.
5.
6.
7.
GRF180 Page
RF & MICROWAVE
SERIES GRF180
GENERAL ELECTRICAL SPECIFICATIONS (@ 25°C) (General Note 2)
Contact Arrangement
Rated Duty
Contact Resistance
Contact Load Rating (DC)
Characteristic Contact Life
Ratings (General Note 3)
Contact Overload Rating
Contact Carry Rating
Coil Operating Power
Operate Time
Minimum Operate Pulse
Interconnect Capacitance
Insulation Resistance
Dielectric Strength
2 Form C (DPDT)
Continuous
.15Ω maximum before life; 0.25Ω maximum after life at 0.25A/28Vdc
Resistive: 0.25A/28Vdc
Low Level: 10 to 50 µA/10 to 50 mV
10,000,000 cycles
(typical)
at low level (General Note 3)
100,000 cycles minimum at all other loads specified above
0.5A/28Vdc Resistive (100 cycles minimum)
Contact factory
GRF180-5: 410 mW typical @ nominal rated voltage
GRF180-12: 288 mW typical @ nominal rated voltage
GRF180-26: 351 mW typical @ nominal rated voltage
2.0 msec. maximum at nominal rated coil voltage
6.0 msec. width at rated voltage
0.02 pf typical
1,000 MΩ minimum between mutually isolated terminals
Atmospheric pressure: 350 Vrms (60 Hz)
DETAILED ELECTRICAL SPECIFICATIONS (@ 25°C) (General Note 2
)
BASE PART NUMBERS
Coil Voltage (Vdc)
Coil Resistance (Ohms ±20%)
Set & Reset Voltage (Vdc max.)
Nom.
Max.
GRF180-5
5.0
6.0
61
3.5
GRF180-12
12.0
16.0
500
9.0
GRF180-26
26.5
32.0
2000
18.0
GENERAL NOTES
1. Relays will exhibit no contact chatter in
excess of 10 µsec or transfer in excess
of 1 µsec.
2. Unless otherwise specified, parameters
are initial values.
3. For extended contact life ratings, contact
factory.
4. Contacts shown in position resulting
when Coil B last energized.
5. For hi-rel applications, contact factory at
(800) 284-7007.
6. Relays may be subjected to 260°C,
peak solder reflow temperature, 1
minute, 3 passes.
7. Butt-lead ends are coplanar within
.003" (0.08).
8. Application notes available for PCB
layout and mounting information.
OUTLINE DIMENSIONS
.335 MAX
(8.51)
.435 MAX
(11.05)
.340 MAX
(8.64)
.035 REF
(0.89)
.375 MAX
(9.53)
.031 REF
(0.79)
.035 REF
(0.89)
10 LEADS
LENGTH
DIA.
+.002
.017 -.001
.033 (0.84) REF
+0.05
(0.43) -0.03
.100 TYP
(2.54)
.475 MAX
(12.06)
9
8
+
.100 TYP
(2.54)
7
6
COIL B
10 –
1
2
3
+
4
5
–
COIL A
SEE NOTE 3.
SCHEMATIC-TERMINAL VIEW
(SHOWN - COIL B LAST
ENERGIZED CONDITION)
U.S. PATENT PENDING
PIN NUMBERS ARE
FOR REFERENCE ONLY,
NOT MARKED ON RELAY
NOTES:
1. DIMENSIONS ARE IN INCHES. METRIC EQUIVALENTS IN MILLIMETERS ARE SHOWN IN ( ).
2. UNLESS OTHERWISE SPECIFIED, TOLERANCES ON DIMENSIONS ARE .010 INCH (0.025 mm).
3. FOR OPTIMAL RF PERFORMANCE, SOLDER BOTTOM OF GROUND SHIELD TO PCB RF GROUND PLANE.
©2003 TELEDYNE RELAYS
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
GRF180 Page
GRF180/1203/Q1
Appendix A: Spacer Pads
Pad designation and
bottom view dimensions
Ø.150
[3.81]
(REF)
Height
For use with the following:
ER411T
ER412, ER412D, ER412DD
712, 712D, 712TN,
RF300, RF310, RF320
ER420, ER422D, ER420DD, 421,
ER421D, ER421DD, ER422, ER422D,
ER422DD, 722, 722D, RF341
ER431T, ER432T,
ER432, ER432D, ER432DD
732, 732D, 732TN, RF303, RF313,
RF323
RF312
ER411, ER411D, ER411DD
Dim. H
Max.
.295 (7.49)
.300 (7.62)
.305 (7.75)
.400 (10.16)
.410 (10.41)
.350 (8.89)
.295 (7.49)
.400 (10.16)
.300 (7.62)
.410 (10.41)
.305 (7.75)
.300 (7.62)
.400 (10.16)
.315 (8.00)
.420 (10.67)
.320 (8.13)
.300 (7.62)
.400 (10.16)
.325 (8.25)
.305 (7.75)
Dim
H
MAX
“M4” Pad for TO-5
Dim
H
MAX
ER431, ER431D, ER431DD
RF311
“M4” Pad for TO-5
RF331
172, 172D
Dim
H
MAX
ER114, ER114D, ER114DD,
J114, J114D, J114DD
ER134, ER134D, ER134DD,
J134, J134D, J134DD
RF100
“M4” Pad for Centigrid
®
.156
[3.96]
(REF)
RF103
122C, A152
Dim
H
MAX
ER116C, J116C
ER136C, J136C
RF180
.256
[6.5]
(REF)
“M9” Pad for Centigrid
®
A150
Notes:
1. Spacer pad material: Polyester
fi
lm.
2. To specify an “M4” or “M9” spacer pad, refer to the mounting variants portion of the part numbering
example in the applicable datasheet.
3. Dimensions are in inches (mm).
4. Unless otherwise specified, tolerance is ± .010 (.25).
5. Add 10 mΩ to the contact resistance show in the datasheet.
6. Add 0.01 oz. (0.25 g) to the weight of the relay assembly shown in the datasheet.
© 2008 Teledyne Relays
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Appendix A: Spreader Pads
Pad designation and
bottom view dimensions
.370 [9.4]
MAX SQ
.100
[2.54]
Height
For use with the following:
ER411T, J411T, ER412, ER412D
ER412DD, J412, J412D, J412DD
ER412T, J412T
712, 712D, 712TN
ER431T, J431T, ER432, ER432D
ER432DD, J432, J432D, J432DD
ER432T, J432T
732, 732D, 732TN
ER420, J420, ER420D, J420D
ER420DD, J420DD, ER421, J421
ER421D, J421D, ER421DD
J422D, ER422DD, J422DD, 722
ER411T
ER412, ER412D, ER412DD
J412, J412D, J412DD
Dim. H
Max.
.388 (9.86)
.393 (9.99)
.493 (12.52)
.503 (12.78)
.398 (10.11)
Dim
H
MAX
.150
[3.81]
.014
[0.36]
(REF)
.300
[7.62]
.100
[2.54]
.200
[5.08]
.370
[9.4]
MIN
“M” Pad 5/ 6/
.390 [9.91]
SQ
.100
[2.54]
.441 (11.20)
.451 (11.46)
.451 (11.46)
.546 (13.87)
.556 (14.12)
.100
[2.54]
.150
[3.81]
.300
[7.62]
Dim
H
MAX
.150
[3.81]
.300
[7.62]
.130
[3.3]
712, 712D
ER421, ER421D, ER421DD
722, 732D
ER431T
ER432, ER432D, ER432DD
732, 732D
ER411, ER411D, ER411DD
ER411TX
ER412X, ER412DX, ER412DDX
ER412TX
712X, 712DX, 712TNX
ER420X, ER420DX, ER420DDX
ER421X, ER421DX, ER421DDX
ER422X, ER422DX
ER422DDX, 722X, 722DDX
ER431, ER431D, ER431DD
ER431TX
ER432X, ER432DX, ER432DDX
ER432TX
732X, 732DX, 732TNX
“M ” Pad 7/ 8/
.370 [9.4]
MAX SQ
.100
[2.54]
.388 (9.86)
.393 (9.99)
.398 (10.11)
Dim
H
MAX
.150
[3.81]
.014
[0.36]
(REF)
.300
[7.62]
.100
[2.54]
.200
[5.08]
.370
[9.4]
MIN
.493 (12.52)
.503 (12.78)
“M ” Pad 5/ 6/ 9/
Notes:
1. Spreader pad material: Diallyl Phthalate.
2. To specify an “M”, “M2” or “M3” spreader pad, refer to the mounting variants portion of the part number example
in the applicable datasheet.
3. Dimensions are in inches (mm).
4. Unless otherwise specified, tolerance is ± .010” (0.25).
5/. Add 25 mΩ to the contact resistance shown in the datasheet.
6/. Add .01 oz. (0.25 g) to the weight of the relay assembly shown in the datasheet.
7/. Add 50 mΩ to the contact resistance shown in the datasheet.
8/. Add 0.025 oz (0.71 g) to the weight of the relay assembly shown in the datasheet.
9/. M3 pad to be used only when the relay has a center pin (e.g. ER411M3-12A, 722XM3-26.)
(800) 284-7007 • www.teledynerelays.com
♦
+44 (0) 1236 453124 • www.teledyne-europe.com
© 2008 Teledyne Relays
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