RF & MICROWAVE
SERIES
RF180
MAGNETIC-LATCHING,
BROADBAND
RF RELAYS
DPDT
All welded construction.
DESCRIPTION
Unique uniframe design provides high magnetic efficiency
The Series RF180 relay is an ultraminiature, hermetically and mechanical rigidity.
sealed, magnetic-latching relay featuring extremely low High force/mass ratios for resistance to shock and vibration.
intercontact capacitance for exceptional RF performance Advanced cleaning techniques provide maximum
over the full UHF spectrum. Its low profile height and .100" assurance of internal cleanliness.
grid spaced terminals make it ideal for applications where Gold-plated precious metal alloy contacts ensure reliable
extreme packaging density and/or close PC board spacing d.c. switching from dry-circuit to 1/4 amp, as well as low
are required. and stable insertion loss in RF applications.
The RF180 design has been optimized for use in RF The RF180 relay is ideally suited for applications where
attenuators, RF switch matrices, and other applications power dissipation must be minimized. The relays can be
requiring magnetic latching, high isolation, low insertion loss operated with a short-duration coil voltage pulse. After the
and low VSWR. contacts have transferred, no coil power is required.
Unique construction features and manufacturing techniques The magnetic-latching feature of the RF180 provides a
provide high reliability and excellent robustness to nonvolatile memory capability, since the relays will not reset
environmental extremes. upon removal of coil power.
ENVIRONMENTAL AND
PRINCIPLE OF OPERATION PHYSICAL SPECIFICATIONS
Storage 65C to +125C
Temperature
Energizing Coil A produces a PERMANENT MAGNET MAGNETIC CIRCUIT A
SOFT IRON CORE A
(Ambient)
MAGNETIC CIRCUIT B
magnetic field opposing the
Operating 55C to +85C
SOFT IRON FRAME
magnetic field of the
Vibration
permanent magnet in Circuit
30 gs to 3000 Hz
COIL A
COIL B
(General Note 1)
A. As the net holding force
decreases, the attractive
Shock 100 gs,
force in the air gap of Circuit
(General Note 1) 6 msec, half-sine
AIR GAP
STATIONARY
B, which also results from the
CONTACT
Enclosure Hermetically sealed
magnetic field of the
permanent magnet, becomes
Weight 0.10 oz. (2.9g) max.
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.
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.
RF180 Page SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 2003 TELEDYNE RELAYS
www.teledynerelays.com RF180/1203/Q1
SERIES RF180
TYPICAL RF CHARACTERISTICS CURVES (SEE RF NOTES)
Isolation Across Contacts (RF Note 4) Isolation Pole to Pole (RF Note 5)
0 0
-10
-10
-20
-20
-30
-30
-40
-40
-50
-50
-60
-60
-70
-80
-70
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
Frequency (MHz) Frequency (MHz)
Insertion Loss (RF Note 6) VSWR (RF Note 6)
0
3
-0.2
2.5
-0.4
-0.6
2
-0.8
1.5
-1
-1.2
1
-1.4
0.5
-1.6
-1.8
0
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
Frequency (MHz)
Frequency (MHz)
RF180 Time Response (RF Note 6)
1.1
0.9
90%
0.7 37ps reference
0.5
62ps propagation delay time
0.3 60ps pulse rise time
10%
0.1
-0.1
-100 0 100 200 300 400 500 600 700 800 900
Time (ps)
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. Relay header is in contact with, but not soldered to, ground plane or connected to ground via ground pin.
c. Test performed at room ambient temperature.
d. Terminals not tested were terminated with 50-ohm load.
e. Contact signal level: 10 dBm.
2. Data presented herein represents typical characteristics and is not intended for use as specification limits.
3. Data is per pole, except for pole-to-pole data.
4. Data is the average from readings taken on all open contacts.
5. Data is the average from readings taken on poles after Coil A is energized then Coil B is energized.
6. Data is the average from readings taken on all closed contacts.
7. Test fixture effect de-embedded from frequency and time response data.
2003 TELEDYNE RELAYS SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE RF180 Page
www.teledynerelays.com RF180/1203/Q1
RF & MICROWAVE
Insertion Loss (dB)
Isolation (dB)
Volt
Isolation (dB)
VSWR