FEATURES

• Available with short-circuit/current overload protection

• Available with switch 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

DESCRIPTION

The Series KD and LD solid-state relays are screened

utilizing MIL-PRF-28750 test methods and are packaged

in low profile hermetically sealed cases. These relays are

constructed with state-of-the-art solid state techniques

and feature fully floating power FET output technology.

This allows the load to be connected to either output

terminal and provides a low ON resistance. The input

(control) and output are optically isolated to protect input

logic circuits from output transients. Available options

include short circuit and current overload protection,

which provides complete protection for both the relay and

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. The second option is a status output line.

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 relay

output is off with load voltage and continuity present, and

a logic 1 (high) when the output is on. The KD and LD

series are ideal for applications switching 36, 28, 14, and

12Vdc.