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422H-12/G

Description
high frequency / RF relays dpdt 12vdc latch Hi temp magnetic
CategoryTopical application    Mechanical and electrical/engineering/automation   
File Size139KB,6 Pages
ManufacturerTeledyne Relays
Websitehttp://www.teledynerelays.com/
Environmental Compliance
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422H-12/G Overview

high frequency / RF relays dpdt 12vdc latch Hi temp magnetic

422H-12/G Parametric

Parameter NameAttribute value
ManufactureTeledyne Relays
Product CategoryHigh Frequency / RF Relays
RoHSYes
Contact Form2 Form C (DPDT-BM)
Coil Voltage12 V
Frequency1 GHz
Power Consumpti290 mW
Termination StylePCB
Coil Resistance500 Ohms
SERIES
HIGH-TEMPERATURE (200°C),
HIGH-PERFORMANCE
TO-5 RELAY
DPDT
SERIES
DESIGNATION
412H
422H
432H
DPDT high-temperature relay
DPDT high-temperature magnetic-latching relay
DPDT sensitive high-temperature relay
RELAY TYPE
412H
422H
432H
INTERNAL CONSTRUCTION
UNI-FRAME
UPPER
STATIONARY
CONTACT
LOWER
STATIONARY
CONTACT
DESCRIPTION
HIGH-PERFORMANCE
ARMATURE
The TO-5 relay, originally conceived and developed by Teledyne, has become one of the
industry standards for low-level switching from dry circuit to 1 ampere. Designed for high-
density PC board mounting, these TO-5 relays are some of the most versatile
ultraminiature relays available because of their small size and low coil power dissipation.
The H Series high-temperature TO-5 relays are designed for reliable operation in
elevated ambient temperatures up to 200°C. Special material selection and processing
provide assurance of freedom from contact contamination and mechanical
malfunctioning that might otherwise be caused by ultra high ambient temperature
conditions.
Typical applications:
• Oil exploration (down hole) instrumentation
• High temperature industrial and process control instrumentation
By virtue of its inherently low intercontact capacitance and contact circuit losses, the H
Series relays have proven to be excellent ultraminiature RF switches for applications with
frequency ranges well into the UHF spectrum (see Figures 1 and 2).
MOVING
CONTACT
412H
432H
ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
–65°C to +200°C
30 g’s to 3000 Hz
75 g’s,
6 msec, half-sine
50 g’s
Hermetically sealed
412H
0.09 oz. (2.55g) max.
0.15 oz. (4.25g) max.
Temperature
(Ambient)
Vibration
(General Note 1)
Shock
(General Note 1)
Acceleration
Enclosure
Weight
432H
PERMANENT MAGNET
MAGNETIC CIRCUIT A
SOFT IRON FRAME
PRINCIPLE OF OPERATION 422H
MAGNETIC CIRCUIT B
422H
ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
–65°C to +200°C
30 g’s to 3000 Hz
100 g’s,
6 msec, half-sine
50 g’s
Hermetically sealed
0.10 oz. (2.84g) max.
Temperature
(Ambient)
Vibration
(General Note 1)
Shock
(General Note 1)
Acceleration
Enclosure
Weight
Energizing Coil B produces a magnetic field
COIL A
COIL B
opposing the holding flux of the permanent magnet
SOFT IRON
in Circuit B. As this net holding force decreases, the
SOFT IRON
CORE A
CORE B
attractive force in the air gap of circuit A, which also
AIR GAP
SOFT IRON
results from the flux of the permanent magnet,
ARMATURE
STATIONARY
CONTACT
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
MOVING
CONTACT
upon removal of power from Coil B, but will snap
back to position B upon energizing Coil A. 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
magnetically neutral position.
412H/422H/432H Page
1
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
©2003 TELEDYNE RELAYS
412H/422H/432H/1203/Q1
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