Overload-protected 6-pin DIP relays for military and aerospace

14 July 2004 Switches, Relays & Keypads Integrated Solutions

Teledyne Relays has introduced two new plastic, 6-pin DIP solid-state relays designed for commercial military and aerospace applications. The ZD20CF and the ZD24CC both offer an extended operating temperature range, overload protection, screening options - all of which are mil-aero COTS (commercial-off-the-shelf) requirements, according to Teledyne. Each relay also comes in a surface-mount package called the SZD.

The Series ZD20CF is a 2 A, 60 V d.c. relay that offers short-circuit/overload protection up to 33 V d.c. to prevent damage to system components, assemblies and system wiring. The Series ZD24CC is a 500 mA, 80 V d.c. relay that offers short-circuit/overload protection up to 60 V d.c. and features trip status/feedback.

The short-circuit/overload protection feature detects a short in the circuit and trips the relay off. Overload conditions such as a high current surge can also be detected. Once the relay trips off, it will remain off until the overload/short-circuit condition is removed and the relay is cycled off/on again. Both the relays offer optical isolation to isolate control circuits from load transients and eliminate ground loops and signal ground noise. They also include low off-state leakage current for high off-state impedance.

Teledyne Relays developed the Series ZD in response to customer demand for small, short-circuit protected, low-cost plastic relays. The ZD and SZD relays feature identical mechanical specifications except for pin length - SZD measures 9,91 x 6,35 mm (including pins) or x 4,45 mm (excluding pins) and weighs 1g.

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