FEATURES
• Available with short-circuit/current overload protection
• Available with status output
• TTL and CMOS compatible control
• Low ON resistance power FET output
• Fast switching speed
• Meets 28 Vdc system requirements of MIL-STD-704
• Optical isolation
• Low profile hermetic package
• Built and tested to the requirements of MIL-PRF-28750
• Available to ‘W’ and ‘Y’ screening levels

DESCRIPTION
This all solid-state relay utilizes the latest technology to
provide a low ON resistance and an optically isolated output.
The control (input) and load (output) are optically isolated to
protect input logic circuits from voltage and current transients
which can occur on the output supply.
The optical isolation also provides a full floating output, thus
allowing the load to be connected to either output terminal. The
control circuit is buffered to enable the relay to be driven directly
from standard CMOS or open collector TTL logic circuits.
Available options include short-circuit and current overload
protection, which provides complete protection for both the relay
and the system wiring. This feature not only provides
protection should a short or overload occur while the relay is
on, but will also provide protection should the relay be switched
into a short. In either case, the relay will sense the short-circuit
condition and then block it indefinitely until the short is removed
and the unit is reset by cycling the input control. The second
option is a status output line. This feature is available in either
switch status or trip status configurations. Switch status returns
the true status of the output switch and is optically isolated from
the load. It provides status indication independent of the control
circuit of the relay. The status line provides a logic (0) low when
the input circuit is off and load circuit continuity is present. The
status line provides a logic 1 (high) when the output is on. Trip
status, available only with HD24 Series relays, returns a logic 0
(low) if the output trips off and a logic 1 (high) when the output is
in a normal mode (on or off). These options are available either
together or separately as standard features. Ideal for applications
switching 36, 28, 14, and 12Vdc