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432H-12 Datasheet(PDF) 1 Page - Teledyne Technologies Incorporated |
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432H-12 Datasheet(HTML) 1 Page - Teledyne Technologies Incorporated |
1 / 6 page 412H/422H/432H Page 1 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ©2003 TELEDYNE RELAYS www.teledynerelays.com 412H/422H/432H/1203/Q1 SERIES 412H 422H 432H HIGH-TEMPERATURE (200°C), HIGH-PERFORMANCE TO-5 RELAY DPDT DESCRIPTION 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). PRINCIPLE OF OPERATION 422H 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 attractive 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 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. INTERNAL CONSTRUCTION SERIES DESIGNATION RELAY TYPE 412H DPDT high-temperature relay 422H DPDT high-temperature magnetic-latching relay 432H DPDT sensitive high-temperature relay UPPER STATIONARY CONTACT LOWER STATIONARY CONTACT MOVING CONTACT UNI-FRAME ARMATURE SOFT IRON ARMATURE SOFT IRON CORE B COIL B MAGNETIC CIRCUIT B PERMANENT MAGNET MAGNETIC CIRCUIT A SOFT IRON FRAME COIL A SOFT IRON CORE A AIR GAP STATIONARY CONTACT MOVING CONTACT 412H ENVIRONMENTAL AND 432H PHYSICAL SPECIFICATIONS Temperature (Ambient) –65°C to +200°C Vibration (General Note 1) 30 g’s to 3000 Hz Shock (General Note 1) 75 g’s, 6 msec, half-sine Acceleration 50 g’s Enclosure Hermetically sealed Weight 412H 0.09 oz. (2.55g) max. 432H 0.15 oz. (4.25g) max. 422H ENVIRONMENTAL AND PHYSICAL SPECIFICATIONS Temperature (Ambient) –65°C to +200°C Vibration (General Note 1) 30 g’s to 3000 Hz Shock (General Note 1) 100 g’s, 6 msec, half-sine Acceleration 50 g’s Enclosure Hermetically sealed Weight 0.10 oz. (2.84g) max. |
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