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RF120-6 Datasheet(PDF) 1 Page - Teledyne Technologies Incorporated |
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RF120-6 Datasheet(HTML) 1 Page - Teledyne Technologies Incorporated |
1 / 2 page 54 SERIES RF120 AEROSPACE CENTIGRID ® MAGNETIC-LATCHING R.F. RELAYS DPDT TELEDYNE RELAYS Temperature -65°C to + 125°C (Ambient) Vibration 30 g’s to 3000 Hz (Note 3) Shock 100 g’s for 6 msec. (Note 3) half-sine Acceleration 50 g’s (Note 3) Enclosure All welded, hermetically sealed Weight 0.10 oz. (2.84 gms.) max. ENVIRONMENTAL AND PHYSICAL SPECIFICATIONS PRINCIPLE OF OPERATION Energizing Coil B produces a magnetic field opposing the holding flux of the per- manent magnet in Circuit B. As this net holding force decreases, the attractive force in the air gap of Circuit A, which also results from the flux of the perma- nent 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 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 the nominal 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. COIL A SOFT IRON FRAME SOFT IRON CORE A MAGNETIC CIRCUIT A MAGNETIC CIRCUIT B PERMANENT MAGNET COIL B STATIONARY CONTACT AIR GAP MOVING CONTACT SOFT IRON ARMATURE • All welded construction. • Unique uni-frame design providing 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 d.c. switching from dry-circuit to 1/4 amp, as well as low, stable insertion loss. The RF120 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 RF120 Series provides a “memory” capability, since the relays will not reset upon removal of coil power. DESCRIPTION The RF120 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. The relay is capable of meeting Teledyne Relays’ T2R® requirements. The RF120 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. |
Similar Part No. - RF120-6 |
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Similar Description - RF120-6 |
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