SERIES SURFACE MOUNT, GRF180 MAGNETIC-LATCHING BROADBAND RF RELAYS DPDT switch matrices, automated test equipment, spacecraft and DESCRIPTION other applications that require dependable high-frequency signal fidelity and performance. Its low profile and .100 grid The Series GRF180 relay is the first hermetically sealed, spaced terminals make the GRF180 ideal for applications ultraminiature RF relay designed from inception for surface where extreme packaging density and/or close PC board mount applications. This magnetic-latching relay features spacing are required. extremely low internal circuit losses for exceptional time and frequency domain response characteristics through and Unique features and manufacturing techniques include: beyond the UHF spectrum and into the S band. The GRF180 Positive mounting means to RF ground plane. features a unique ground shield that isolates and shields Unique uniframe design provides high magnetic efficiency each lead to ensure excellent contact-to-contact and pole-to- and mechanical rigidity. pole isolation. This ground shield provides a ground interface High force/mass ratios for resistance to shock and that results in improved high-frequency performance as well vibration. as parametric repeatability. The GRF180 extends Advanced cleaning techniques provide maximum performance advantages over similar RF devices that simply assurance of internal cleanliness. offer formed leads for surface mounting. Gold-plated precious metal alloy contacts ensure reliable dc and RF signal switching, as well as low and stable insertion The GRF180 is robust to shock, vibration and temperature loss. extremes for use in space applications and other demanding Robust to high temperature solder reflow environments. environments. It is engineered for use in RF attenuators, RF ENVIRONMENTAL AND PRINCIPLE OF OPERATION PHYSICAL SPECIFICATIONS Storage 65C to +125C PERMANENT MAGNET MAGNETIC CIRCUIT A Temperature Energizing Coil A produces 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 500 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 B, which also results from the STATIONARY 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. 2003 TELEDYNE RELAYS SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE GRF180 Page 12 www.teledynerelays.com GRF180/1203/Q1 RF & MICROWAVERF & MICROWAVE SERIES GRF180 TYPICAL RF CHARACTERISTICS (See RF Notes) Isolation Contact to Contact (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 -70 0 1000 2000 3000 4000 5000 6000 0 1000 2000 3000 4000 5000 6000 Frequency (MHz) Frequency (MHz) Insertion Loss (RF Note 6) VSWR (RF Note 6) 0 3 2.8 -0.2 2.6 -0.4 2.4 -0.6 2.2 -0.8 2 -1 1.8 -1.2 1.6 -1.4 1.4 -1.6 1.2 -1.8 1 0 1000 2000 3000 4000 5000 6000 0 1000 2000 3000 4000 5000 6000 Frequency (MHz) Frequency (MHz) Time Domain Reponse 1.1 0.9 90% 37ps reference 0.7 67ps propagation delay time 0.5 60ps pulse rise time 0.3 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. 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. 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. GRF180 Page 13 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 2003 TELEDYNE RELAYS www.teledynerelays.com GRF180/1203/Q1 Insertion Loss (dB) Isolation (dB) Volt VSWR Isolation (dB)