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CD21CDW Teledyne Relays
Solid State Relay
MFG Part Number: CD21CDW
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This all solid-state relay utilizes the latest technology to provide a low ON resistance. 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, which provides a built-in-test function. This feature checks the input circuitry of the relay and provides a logic (0) low when the input circuit is turned on and operational. Both options are available either together or separately as standard features.
Key AttributesValue
Input TypeDC
Operating Line Voltage18 VDC
Output TypeDC
Maximum Load (Output) Current1 A
Maximum Load (Output) Voltage60 V
Input/Output Isolation Voltage1000 V
Output DevicePower FET
Mounting StyleThrough Hole
Switching TypeTTL, CMOS
Package TypeMini-DIP
Request Quote for Lead Time
QuantityUnit Price

This product is available in the following countries:
  • Global