RF170-12 TELEDYNE, RF170-12 Datasheet
RF170-12
Manufacturer Part Number
RF170-12
Description
Electromechanical Relay DPDT 0.25A 12VDC 500Ohm Through Hole
Manufacturer
TELEDYNE
Type
Commercial Centigrid Magnetic Latching Relayr
Datasheet
1.RF170-12.pdf
(2 pages)
Specifications of RF170-12
Contact Arrangement
DPDT
Dc Coil Voltage
12 V
Coil Current
24 mA
Mounting
Through Hole
DESCRIPTION
The RF170 Series relay is an ultraminiature, hermetically sealed,
magnetic-latching relay featuring extremely low intercontact capacitance
for exceptional R.F. performance over the full UHF spectrum. Its low
profile height and .100" grid spaced terminals (precluding the need for
spreader pads) make it ideal for applications where extreme packaging
density and/or close PC board spacing are required.
The basic design and internal structure are similar to the TO-5 421
Series relay. In addition, the RF170 design has been optimized for use
in RF attenuators, RF switch matrices, and other applications requiring
high isolation, low insertion loss, and low VSWR.
Unique construction features and manufacturing techniques provide
overall high reliability and excellent resistance to environmental
extremes.
PRINCIPLE OF OPERATION
Energizing Coil B produces a magnetic
field opposing the holding flux of the
permanent magnet in Circuit B. As this
net holding force decreases, the attrac-
tive force in the air gap of Circuit A,
which also results from the flux of the
permanent magnet, becomes great
enough to break the armature free of
Core B, and snap it into a closed position
against Core A. The armature then
remains in this position upon removal
of power from Coil B, but will snap back
into position B upon energizing Coil A.
Since operation depends upon cancella-
tion 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 the nominal coil volt-
age 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.
MAGNETIC CIRCUIT B
COIL B
COMMERCIAL CENTIGRID
PERMANENT MAGNET
TELEDYNE RELAYS
MAGNETIC LATCHING
ARMATURE
SOFT IRON
R.F. RELAYS
87
DPDT
MAGNETIC CIRCUIT A
SOFT IRON CORE A
SOFT IRON FRAME
• All welded construction.
• Unique uni-frame design providing high magnetic efficiency and
• High force/mass ratios for resistance to shock and vibration.
• Advanced cleaning techniques provide maximum assurance of
• Gold plated precious metal alloy contacts ensure reliable d.c.
The RF170 relay is ideally suited for applications where power dissipation
must be minimized. The relays can be operated with a short-duration
pulse. After the contacts have transferred, no external holding power is
required.
The magnetic-latching feature of the RF170 Series provides a “memory”
capability, since the relays will not reset upon removal of coil power.
COIL A
CONTACT
AIR GAP
MOVING
mechanical rigidity.
internal cleanliness.
switching from dry-circuit to 1/4 amp, as well as low, stable
insertion loss.
STATIONARY
CONTACT
Temperature
(Ambient)
Vibration
Shock
Enclosure
Weight
®
PHYSICAL SPECIFICATIONS
ENVIRONMENTAL AND
-55°C to + 85°C
10 g’s to 1000 Hz
(Note 3)
30 g’s for 6 msec.
(Note 3)
Hermetically sealed
0.10 oz
(2.9 gms.) max.
RF170
SERIES
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RF170-12 Summary of contents
Page 1
... PC board spacing are required. The basic design and internal structure are similar to the TO-5 421 Series relay. In addition, the RF170 design has been optimized for use in RF attenuators, RF switch matrices, and other applications requiring high isolation, low insertion loss, and low VSWR. ...
Page 2
... RF170-9 RF170-9 RF170-9 RF170-9 RF170-12 RF170-12 RF170-12 RF170-12 RF170-18 RF170-18 RF170-18 RF170-18 6.0 6.0 6.0 6.0 9.0 9.0 9.0 9.0 12.0 12.0 12.0 12.0 18 ...